Table of Contents
Overview
Definition and Importance
Electrophysiology is defined as the study of electrical currents in living cells and tissues, serving as a powerful tool in neuroscience to investigate the function and connectivity of the nervous system by recording electrical activity in neurons and neuronal ensembles.[2.1] This field allows for simultaneous recording from hundreds or thousands of cells, enabling researchers to measure extracellular action potentials and facilitating network analysis, which provides a more comprehensive understanding of electrophysiological properties.[1.1] The significance of electrophysiology lies in its ability to measure the electrical activity of biological cells both in vivo and in vitro, thus offering insights into the mechanisms that regulate neuronal function.[2.1] Electrophysiological techniques are considered the backbone of neuroscience research, as they are the most direct methods for investigating the electrical activity of neurons, including the specific ions, receptors, channels, and signaling proteins involved.[1.1] Historically, the field has seen considerable advancements, particularly with the pioneering work of Hodgkin and Huxley in the early 1950s, which revealed the ionic basis of the neuronal action potential.[5.1] This was complemented by technological innovations such as the patch-clamp technique developed by Sakmann and Neher in 1981, which enabled the measurement of ion flow through single ion channels and significantly enhanced the understanding of excitable cells.[5.1] Overall, the evolution of electrophysiological techniques has led to an explosion of knowledge in neuroscience, underscoring the importance of this discipline in elucidating the complexities of neuronal function and connectivity.[6.1]Role of Electrophysiologists
Electrophysiologists are essential in the diagnosis and management of cardiac arrhythmias, utilizing advanced electrophysiological techniques. They employ electroanatomical mapping systems, a cornerstone of modern invasive cardiac electrophysiology, to enhance treatment precision.[7.1] By inserting catheters into the heart, they can map electrical activity and pinpoint arrhythmia locations, crucial for guiding catheter ablation procedures.[8.1] Recent advancements have significantly transformed arrhythmia management. Innovations in mapping systems and catheter ablation techniques have improved the detection and definition of scar tissue, contributing to the arrhythmia substrate in patients with heart disease and aging.[10.1] Additionally, the integration of machine learning and artificial intelligence has deepened the understanding of risk factors, mechanisms, and treatment responses for atrial arrhythmias.[9.1] Electrophysiologists also utilize non-pharmacological treatments, including electrical cardioversion, device therapy, and surgical interventions, to manage arrhythmias effectively. Device therapy involves using pacemakers for bradycardia and implantable cardioverter-defibrillators (ICDs) for patients at risk of life-threatening ventricular arrhythmias.[8.1] Ongoing research and technological innovations continue to advance the diagnosis and treatment of complex arrhythmias, highlighting the vital role of electrophysiologists in contemporary cardiac care.[11.1]History
Early Discoveries in Cardiac Electrophysiology
The early discoveries in cardiac electrophysiology can be traced back to the pioneering work of scientists such as Luigi Galvani and Alessandro Volta in the 18th century. Galvani's experiments with frog legs demonstrated that electrical stimulation could induce muscle contractions, leading him to propose the concept of "animal electricity".[63.1] This foundational work not only laid the groundwork for electrophysiology but also sparked significant debate regarding the nature of electricity in biological systems, particularly between Galvani and Volta, who argued that the observed effects were due to external electrical currents rather than intrinsic animal electricity.[65.1] Following Galvani, Volta's invention of the electric pile in 1800 marked a significant advancement in the field, providing a reliable source of electrical current for experimentation.[64.1] This innovation facilitated further exploration into the electrical properties of biological tissues, including the heart. The 19th century saw continued advancements in understanding cardiac electrophysiology, with researchers like Emil du Bois-Reymond contributing to the discovery of action potentials in nerve and muscle cells, which are critical for cardiac function.[61.1] The work of Hodgkin and Huxley in the mid-20th century further revolutionized the field by providing a quantitative description of membrane currents and their role in nerve conduction and excitation, which has direct implications for cardiac electrophysiology.[66.1] Their methodologies laid the foundation for modern electrophysiological techniques, including the patch clamp, which allows for high-resolution recording of ionic currents across cell membranes.[46.1] These early discoveries and subsequent advancements have been instrumental in shaping our understanding of cardiac electrophysiology, leading to significant insights into the mechanisms underlying heart function and arrhythmias.Development of Invasive Techniques
The patch-clamp technique has significantly advanced the field of electrophysiology, particularly in the study of neural excitability and cellular signaling. This method allows for the investigation of the electrical activity of individual cells, providing insights into neuronal function and network activity across various experimental models, including isolated neural cells and acute tissue slices.[48.1] One of the transformative aspects of the patch-clamp technique is its ability to evaluate the functional consequences of ion channel expression on neuronal intrinsic properties. This capability has enhanced our understanding of how ion channels contribute to cellular signaling mechanisms, revealing that these channels are not limited to excitable membranes of specific organisms but are instead ubiquitous across all cellular membrane types.[55.1] Moreover, the patch-clamp technique has facilitated the integration of modern molecular and cellular biology with electrophysiology, allowing researchers to explore complex regulatory pathways that link surface receptors, cellular metabolism, and ion channels. This integration has led to the discovery of long-lasting changes in cellular behavior resulting from these interactions.[56.1] Despite the impressive advancements in automation and application of the patch-clamp technique, challenges such as parallelization and long-term recording remain, indicating that further developments are necessary to fully harness its potential in neuroscience.[47.1]In this section:
Recent Advancements
Innovations in Diagnostic Tools
Recent advancements in electrophysiology have significantly enhanced diagnostic capabilities, particularly in the context of inherited arrhythmia syndromes. The integration of genetic testing has emerged as a pivotal innovation, allowing for the identification of disease-causing genes associated with various inherited arrhythmias. Over the past three decades, classical linkage mapping has successfully identified these genes, leading to substantial improvements in patient care and outcomes.[98.1] Genetic studies have revealed specific mutations in ion channels and their interacting proteins that underlie ventricular arrhythmias, facilitating diagnoses even in deceased individuals through postmortem genetic testing, commonly referred to as molecular autopsy.[127.1] The Heart Rhythm Society (HRS), in collaboration with other professional organizations, has emphasized the importance of genetic testing in the management of inherited arrhythmia syndromes. Their expert consensus statement has updated clinical diagnostic criteria for conditions such as congenital long QT syndrome (LQTS) and Brugada syndrome (BrS), highlighting the role of genetic studies in identifying forms of congenital LQTS in a significant percentage of clinically affected patients.[100.1] This advancement underscores the critical relationship between genetic factors and arrhythmias, which can lead to improved diagnostic accuracy and tailored treatment strategies.[99.1] Moreover, the application of genetic testing has been shown to provide prognostic information regarding the risk of sudden arrhythmic death, thereby guiding clinical decision-making.[123.1] The incorporation of genetic insights into routine clinical practice is anticipated to transform the management of patients with arrhythmia syndromes, although challenges remain in standardizing these practices across diverse healthcare settings.[126.1] Overall, the advancements in diagnostic tools, particularly through genetic testing, represent a significant leap forward in the field of electrophysiology, enhancing the ability to diagnose and treat inherited arrhythmias effectively.Emerging Therapies and Technologies
Recent advancements in cardiac electrophysiology have significantly improved the treatment of arrhythmias, with a particular focus on innovative therapies and technologies. Machine learning and artificial intelligence have been pivotal in enhancing the prediction of atrial arrhythmias and optimizing treatment outcomes, marking a substantial leap in understanding arrhythmia mechanisms [87.1]. While pharmacotherapy has seen modest progress, device therapy has rapidly advanced, becoming essential in managing arrhythmias and conduction disorders [86.1]. In catheter ablation, new techniques utilizing non-thermal energy sources and novel catheters aim to improve patient outcomes by reducing adverse events [107.1]. Pulmonary vein isolation remains central to atrial fibrillation ablation, but ongoing research is exploring additional targets and advanced electroanatomical mapping to enhance efficacy, especially for complex arrhythmias [108.1][106.1]. The COVID-19 pandemic has accelerated the development of remote diagnostic tools and therapies, leading to more efficient clinical trial designs and emphasizing the need for safe clinical environments to restore patient confidence in elective procedures [93.1][94.1]. Collaboration between cardiac electrophysiologists and anesthesiologists has become crucial, with specialized anesthesia care improving the safety and efficacy of procedures. Advances in anesthesia, such as total intravenous anesthesia (TIVA) and newer agents, have led to faster recovery times and better patient outcomes [102.1][104.1].Electrophysiologic Testing
Purpose and Procedure
Electrophysiologic testing serves a crucial role in diagnosing and managing various heart conditions by assessing the heart's electrical system and identifying abnormalities in heart rhythm. This specialized diagnostic procedure evaluates the heart's electrical activity, particularly focusing on the electrical pathways in the atria, which is essential for identifying triggers of conditions such as atrial fibrillation (AFib) and supraventricular tachycardia (SVT).[132.1] The procedure boasts a positive predictive value (PPV) of 88% and a negative predictive value (NPV) of 90%, indicating its effectiveness in localizing abnormal electrical signals, which is vital for planning subsequent treatments like catheter ablation or medication management.[128.1] During an electrophysiology study (EP study), healthcare providers utilize a series of tests to evaluate the heart's electrical system and check for abnormal heart rhythms. The natural electrical impulses that coordinate the contractions of the heart are assessed to ensure proper heart rhythm and blood flow.[129.1] The procedure typically takes place in a specialized environment known as the electrophysiology lab (EP lab) or catheterization lab (cath lab), where doctors and nurses monitor the patient closely.[131.1] Patients may be advised to undergo an EP study if they exhibit symptoms of irregular heart rhythms, such as palpitations, shortness of breath, or dizziness.[149.1] The procedure is minimally invasive, involving catheter insertion into a blood vessel to guide the catheter to the heart, and is performed under careful observation.[130.1] Following the procedure, most patients can resume normal activities the next day, although some restrictions on heavy lifting may apply for up to a week.[151.1]Importance in Arrhythmia Management
Electrophysiologic testing (EPT) plays a crucial role in the management of arrhythmias, providing essential insights into the electrical activity of the heart. The indications for EPT have evolved significantly, reflecting advancements in technology and a deeper understanding of arrhythmia mechanisms. EPT is indicated for patients with various arrhythmias, bradycardia, unexplained syncope, and those at risk of sudden cardiac death, serving as a vital tool for diagnosing and assessing heart rhythm disorders.[136.1] The American Heart Association has established guidelines that categorize EPT indications into three classes, with Class I conditions being those for which EPT is generally agreed to provide useful information.[137.1] This structured approach aids clinicians in determining the appropriateness of EPT for individual patients, ensuring that those who may benefit most from the procedure are prioritized. Recent advancements in electrophysiologic testing have significantly influenced the development of personalized treatment plans for patients with arrhythmias. Innovations in catheter design and monitoring devices have enhanced the precision of EPT, allowing for more accurate mapping of the heart's electrical activity.[144.1] For instance, the use of three-dimensional electroanatomical mapping systems has improved the identification of arrhythmia substrates, which is critical for guiding catheter ablation procedures.[146.1] These technological improvements have led to increased procedural success rates and better clinical outcomes for patients, as evidenced by a rise in catheter ablation procedures from 2,500 in 2007 to 6,500 in 2013-2014.[145.1] Moreover, the integration of continuous monitoring technologies, such as wearable devices and implantable monitors, has revolutionized arrhythmia care by providing real-time data that enhances diagnosis and treatment.[138.1] This continuous data stream allows for timely interventions and improved patient engagement, ultimately leading to better management of arrhythmias.Types Of Arrhythmias
Common Types and Their Implications
Cardiac arrhythmias can be classified based on their origin within the heart and their impact on heart rate. They are generally categorized into supraventricular and ventricular arrhythmias, each with distinct mechanisms and clinical implications. Supraventricular arrhythmias arise from above the atrioventricular node and include conditions such as atrial fibrillation and supraventricular tachycardia (SVT). These arrhythmias are characterized by their mechanisms, which have been well elucidated, and they often involve extra-cardiac complications. While they can be symptomatic and require treatment, they typically have a lower mortality rate compared to ventricular arrhythmias.[183.1] Atrial fibrillation, for instance, is a common type of irregular heartbeat where the upper chambers of the heart quiver instead of beating effectively, leading to potential complications such as stroke.[188.1] In contrast, ventricular arrhythmias originate in the heart's lower chambers and are associated with a higher mortality risk. These arrhythmias can lead to severe outcomes, including sudden cardiac death, particularly in patients with underlying heart disease.[187.1] The mechanisms of ventricular arrhythmias are complex and involve various factors, including re-entry circuits and triggered activity, which complicate their management.[186.1] Effective treatment options for ventricular arrhythmias are limited, and ongoing research is essential to develop better therapeutic strategies.[186.1] Electrophysiological studies play a crucial role in diagnosing and managing both types of arrhythmias. These studies involve mapping the heart's electrical activity to identify the precise location of the arrhythmia, which is vital for guiding treatment, especially for catheter ablation procedures.[189.1] Non-pharmacological treatments, such as catheter ablation and device therapy, have advanced significantly, providing new avenues for managing arrhythmias effectively.[189.1] Understanding the different types of arrhythmias and their implications is essential for both patients and healthcare providers, as it informs treatment decisions and patient education regarding lifestyle modifications and risk management.[189.1]Diagnostic Approaches
Diagnostic approaches for arrhythmias have evolved significantly with advancements in technology and methodology. One of the primary tools in this evolution is cardiac mapping, which plays a crucial role in the diagnosis and treatment of arrhythmias. Modern electroanatomic mapping systems rely heavily on measured electrograms (EGMs) obtained from catheters, which provide essential data for identifying arrhythmia sources and guiding treatment decisions.[174.1] High-density mapping has emerged as a pivotal technique, allowing clinicians to pinpoint critical sites of reentry circuits in complex arrhythmias. Notably, the AcQMap™ cardiac mapping system represents a revolutionary advancement in three-dimensional mapping technology, enhancing the precision of arrhythmia diagnosis.[177.1] Additionally, the forward-solution AI mapping system utilizes 12-lead ECG data to compare patient recordings with computationally predicted electrograms, thereby improving diagnostic accuracy and treatment planning.[176.1] Electrophysiological studies (EPS) are another cornerstone in the diagnostic landscape for arrhythmias. These specialized tests involve inserting catheters equipped with electrodes into the heart to map its electrical pathways, enabling the identification of the arrhythmia's source.[195.1] EPS not only provide insights into the heart's electrical activity but also guide treatment options, including medications, catheter ablation, or the implantation of devices such as pacemakers.[196.1] The precision offered by EPS is critical in tailoring treatment strategies to individual patient needs, thereby enhancing overall management of arrhythmias.[197.1] Furthermore, the integration of digital technologies and artificial intelligence into electrophysiology is paving the way for personalized medicine. Innovations such as digital twins, which create dynamic, patient-specific models, hold promise for simulating and predicting cardiac behavior, thus facilitating more targeted interventions.[192.1] As these technologies continue to develop, they are expected to further refine diagnostic approaches and improve patient outcomes in the management of arrhythmias.[191.1]In this section:
Treatment Strategies
Pharmacological Interventions
Pharmacological management is often the first line of treatment for arrhythmias, utilizing a range of antiarrhythmic medications tailored to the individual patient's needs. Personalized medicine plays a crucial role in this context, as it allows for the customization of treatment strategies based on the specific pathological mechanisms involved in each patient's condition. This approach recommends precise pharmacological interventions that are informed by individualized diagnoses, thereby enhancing the effectiveness of treatment.[231.1] In addition to pharmacological therapies, the management of arrhythmias also incorporates advanced clinical imaging and simulation-based strategies. These innovations are designed to predict an individual's risk of sudden cardiac death (SCD) and facilitate the non-invasive planning of optimal personalized anti-arrhythmia therapies.[230.1] Furthermore, electrophysiological studies are integral to the management process, as they involve the insertion of catheters into the heart to map electrical activity and identify the precise location of arrhythmias. This information is critical for guiding treatment decisions, particularly for catheter ablation procedures, which may be necessary when pharmacological interventions are insufficient.[232.1]Non-Pharmacological Approaches
Non-pharmacological approaches in electrophysiology encompass a range of techniques that leverage electrical activity measurement to inform treatment strategies, particularly in the context of cardiac and neurological conditions. Electrophysiology methods include diverse techniques such as intracellular recordings, extracellular recordings, and patch clamp, which are essential for studying the electrical activity of live neurons and understanding their function and connectivity within the nervous system.[207.1] Recent advancements in clinical electrophysiology have focused on two main aspects: ablation and pacing. These methods involve novel energy sources and approaches aimed at rhythm restoration and control, which are critical for managing complex heart rhythm issues.[208.1] For instance, leadless pacemakers and advanced ablation techniques have emerged as innovative solutions that enhance patient comfort and precision in treatment.[210.1] These technologies allow for real-time monitoring of heart conditions, reducing the need for frequent in-office visits while ensuring timely care.[210.1] Moreover, the integration of wearable technologies into clinical practice has transformed patient monitoring and personalized care. Devices such as wearable heart monitors and ECG patches facilitate continuous health tracking, enabling healthcare professionals to make informed decisions based on real-time data.[212.1] This shift towards proactive care not only improves patient adherence to monitoring but also enhances overall cardiovascular healthcare delivery.[211.1] In addition to these advancements, the exploration of in situ cell reprogramming and artificial intelligence represents potential paradigm shifts in electrophysiology. These strategies aim to personalize treatment by utilizing patient-specific models that integrate various data types, including imaging and electrophysiological information.[209.1] Collectively, these non-pharmacological approaches underscore the evolving landscape of electrophysiology, emphasizing the importance of technological integration in enhancing patient outcomes and optimizing management strategies.In this section:
Future Directions
Personalized Medicine in Electrophysiology
Recent advancements in genetic research have significantly transformed the field of clinical cardiac electrophysiology, particularly in the understanding, diagnosis, and management of cardiac arrhythmias. Genetic insights have led to the identification of key mutations associated with various arrhythmias, which has enhanced risk stratification and facilitated the development of personalized treatment strategies for patients suffering from inherited arrhythmia syndromes.[261.1] Dr. Ian Weisberg, a prominent figure in this domain, emphasizes that these genetic discoveries are reshaping the approach to diagnosing and treating electrical disorders of the heart, thereby paving the way for personalized medicine.[262.1] The implications of genetic research extend to improving early diagnosis and risk assessment for patients with inherited arrhythmias. By leveraging genetic links, healthcare professionals can tailor treatments to individual patients, thereby optimizing therapeutic outcomes.[262.1] This personalized approach is particularly crucial given the challenges associated with treating complex arrhythmias, such as atrial fibrillation (AF) and ventricular tachycardia (VT), which often do not respond well to conventional invasive or pharmacological therapies.[263.1] Emerging gene therapies hold promise for addressing conditions like arrhythmogenic right ventricular cardiomyopathy (ARVC), which currently lacks disease-specific therapies. These innovative treatments could potentially mitigate the elevated risks of ventricular arrhythmias, heart failure, and sudden cardiac death associated with ARVC.[264.1] In addition to genetic advancements, the evolution of catheter ablation techniques has also contributed to personalized medicine in electrophysiology. Catheter ablation has become a curative treatment option for various cardiac arrhythmias, with its indications expanding from simple supraventricular tachycardias to more complex arrhythmias.[269.1] The integration of advanced imaging techniques and electroanatomical mapping systems has further enhanced the precision of ablation procedures, allowing for more effective targeting of arrhythmogenic substrates.[272.1]Integration of Technology and AI in Diagnosis and Treatment
The integration of technology and artificial intelligence (AI) in cardiac electrophysiology is poised to significantly enhance diagnosis and treatment methodologies. AI has the potential to revolutionize the field by integrating diverse data streams, including electrocardiograms (ECGs), information from wearable devices, and cardiac imaging, thereby improving the understanding of arrhythmia mechanisms and enabling personalized treatment strategies for conditions such as atrial fibrillation (AF).[258.1] Advanced imaging and mapping techniques, powered by AI, can accurately identify ablation targets, which is crucial for both invasive and non-invasive treatment approaches.[258.1] Moreover, the application of deep learning algorithms allows for the analysis of complex, non-linear relationships within patient data, yielding insights that traditional methods may overlook.[257.1] This capability is particularly beneficial for risk prediction and mechanistic modeling, which can inform clinical outcomes and enhance treatment precision.[258.1] However, the integration of AI into clinical practice must be approached with caution to ensure that these technologies are trustworthy and evidence-based, ultimately benefiting patient care.[259.1] Telemedicine also plays a vital role in enhancing access to electrophysiological care, especially for patients in rural or underserved areas. The electrophysiology community is well-equipped for telemedicine initiatives, as all pre-obtained data, including ECGs and cardiac imaging, can be reviewed electronically.[277.1] Institutions like the Cleveland Clinic have successfully implemented virtual visits for arrhythmia patients, demonstrating the feasibility and effectiveness of remote monitoring in this specialty.[278.1] This shift towards digital health solutions not only facilitates timely access to care but also aligns with the broader trend of integrating technology into healthcare delivery.[254.1]In this section:
References
[1] Electrophysiology - an overview | ScienceDirect Topics — Electrophysiology is defined as a powerful tool used in neuroscience to study the function and connectivity of the nervous system by recording electrical activity in neurons and neuronal ensembles. Electrophysiology allows simultaneous recording from hundreds or thousands of cells, ion channels and neuronal activities (Viventi et al., 2011). Technological advancements have led to the creation of multielectrode arrays to measure extracellular action potentials and allow for measurement of hundreds of neurons simultaneously, facilitating network analysis, thus providing a more complete and complex view into electrophysiological properties (Berdondini et al., 2009; Nam and Wheeler, 2011). However, many scientists, even nonelectrophysiologists, consider electrophysiology techniques to be the backbone of neuroscience research—they are the most direct methods to investigate the electrical activity of neurons and the specific ions, receptors, channels, and signaling proteins that regulate their function.
[2] Electrophysiology | SpringerLink — Electrophysiology is the study of electrical currents in living cells and tissues. Through electrophysiological measuring techniques, it is possible to measure the electrical activity of biological cells within an organism (in vivo) and in environments outside living organisms (in vitro) (Verkhratsky and Parpura 2014; Graziane and Dong 2016).
[5] Electrophysiology Fundamentals, Membrane Potential and ... — Then in the early 1950’s, Hodgkin and Huxley revealed the ionic basis of the neuronal action potential,2 instigating an intense period of investigation to understand molecular mechanisms underlying the action potential.3 Technological advancements in electrode design were made in parallel.4 In 1981, Sakmann and Neher published their paper on patch-clamp electrophysiology, pioneering the use of glass micropipettes capable of measuring ion flow through single ion channels or across a single cell membrane.5 This technology drove an explosion in our understanding of how excitable cells work and enabled scientists to investigate the fundamental mechanisms underlying excitability and brain function6 with the help of this During an action potential, voltage-gated Na+ channels open allowing the rapid influx of Na+ ions and the fast depolarization of the cell membrane potential.
[6] Electrophysiology - an overview | ScienceDirect Topics — 1 Introduction. Electrophysiology is a powerful tool for the study of function and connectivity in the nervous system. For the better part of a century, considerable advances through a series of electrophysiological techniques, from single-channel recording to the monitoring of synchronous activity of intact neuronal ensembles, have prompted an explosion of knowledge in neuroscience.
[7] Contemporary Mapping Techniques of Complex Cardiac Arrhythmias ... — In this review, the authors aim to sum up state-of-the-art EAM techniques and their impact on the acute- and long-term results of ablation of complex arrhythmias. Clinical Perspective. Electroanatomical mapping systems are the cornerstone of contemporary invasive cardiac electrophysiology.
[8] Cardiac Arrhythmias and Their Management: An In-Depth Review of Current ... — Electrophysiological studies involve inserting catheters into the heart to map the electrical activity and identify the precise location of the arrhythmia, which is crucial for guiding treatment, particularly for catheter ablation procedures . Non-pharmacological treatments for cardiac arrhythmias include electrical cardioversion, catheter ablation, device therapy, and surgery. Device therapy includes pacemakers to treat bradycardia and maintain an adequate heart rate and implantable cardioverter-defibrillators (ICDs) for patients at risk of life-threatening ventricular arrhythmias to deliver shocks when needed. From traditional pharmacological treatments and electrical interventions to cutting-edge techniques like catheter ablation and novel device therapies, the landscape of arrhythmia management continues to advance, driven by ongoing research and technological innovations.
[9] Advances in Cardiac Electrophysiology | Circulation: Arrhythmia and ... — Despite the global COVID-19 pandemic, during the past 2 years, there have been numerous advances in our understanding of arrhythmia mechanisms and diagnosis and in new therapies. We increased our understanding of risk factors and mechanisms of atrial arrhythmias, the prediction of atrial arrhythmias, response to treatment, and outcomes using machine learning and artificial intelligence. There
[10] The Future of Arrhythmias and Electrophysiology | Circulation — The ability to detect and define scar, which participates in the arrhythmia substrate for ventricular and atrial arrhythmias in heart disease and aging, has great potential to better define the arrhythmia substrate and to guide ablation. 23,24 Preprocedural cardiac magnetic resonance imaging to define areas of fibrosis that are associated with
[11] PDF — Open Access Journal of Cardiac and Pulmonary Rehabilitation J o u r n a l o f C a r d i a c a n d P u l m o n a r y R e h a b i l i t a t i o n Volume 8 • Issue 4 • 1000264 J Card Pulm Rehabi, an open access journal Introduction Clinical cardiac electrophysiology has experienced remarkable advancements over recent years, driven by technological innovations and novel techniques that enhance the diagnosis, management, and treatment of arrhythmias. Conclusion Advances in clinical cardiac electrophysiology have transformed the management of arrhythmias, driven by innovations in mapping systems, catheter ablation techniques, remote monitoring, and wearable technologies.
[46] History of Electrophysiology and the Patch Clamp — Hodgkin AL, Huxley AF (1952) A quantitative description of membrane current and its application to conduction and excitation in nerve. J Neurosci Methods 2:51–78 J Neurosci Methods 4:201–210 Hamill OP, Marty A, Neher E et al (1981) Improved patch-clamp techniques for high-resolution current recording from cells and cell-free membrane patches. Sakmann B, Neher E (1984) Patch clamp techniques for studying ionic channels in excitable membranes. Hodgkin AL, Huxley AF (1952) A quantitative description of membrane current and its application to conduction and excitation in nerve. J Neurosci Methods 2:51–78 J Neurosci Methods 4:201–210 Hamill OP, Marty A, Neher E et al (1981) Improved patch-clamp techniques for high-resolution current recording from cells and cell-free membrane patches. Sakmann B, Neher E (1984) Patch clamp techniques for studying ionic channels in excitable membranes.
[47] Nanotechnology: new opportunities for the development of patch‐clamps - PMC — Abstract. The patch-clamp technique is one of the best approaches to investigate neural excitability. Impressive improvements towards the automation of the patch-clamp technique have been made, but obvious limitations and hurdles still exist, such as parallelization, volume displacement in vivo, and long-term recording.
[48] Patch-Clamp Recordings in Isolated Neural Cells, Acute Tissue Slices ... — Patch-clamp recordings are a fundamental technique in neuroscience to study the electrical activity of individual cells. When applied to isolated neural cells, acute tissue slices, or brain rosettes, this method provides valuable insights into neuronal function and network activity in different experimental models.
[55] One-channel Cell-attached Patch-clamp Recording - PMC — The technique revealed that ion channels are not restricted to excitable membranes of frog muscles, eel electroplaques, or squid giant axons 3, 4, but rather that they represent ubiquitous fixtures of transmembrane signaling mechanisms and are intrinsic to all cellular membrane types of uni- or multicellular organisms, and also to intracellular
[56] [1] Patch clamp techniques: An overview - ScienceDirect — Thus, complex regulatory pathways linking surface receptors, the metabolism of the cell and ion channels can result in long-lasting changes in the behavior of the cell. The patch clamp technique provides the experimental means for merg- ing the tools of modern molecular and cellular biology with those of electrophysiology.
[61] When Frogs Danced: The Revolution of Electricity with Galvani and Volta — This demonstration likely inspired Galvani to explore the effects of electricity on biological systems, hypothesizing that similar electrical principles could be active within living organisms, as illustrated in Figure 1.a. Additionally, Franklin’s methodical approach, using simple but clever experimental setups to test specific theories, likely influenced Galvani's experimental designs to stimulate nerve and muscle tissues with electricity, as shown in Figure 1.b . Only in the 19th century the field of electrophysiology was continued by scientists such as Luigi Rolando (1773-1831) and Pierre Flourens (1794-1867), who investigated the brain's electrical excitability and its relation to function; Carlo Matteucci (1811-1868), who demonstrated that injured tissue generates an electric current; and Emil du Bois-Reymond (1818–1896), who discovered action potentials in nerve and muscle cells .
[63] Luigi Galvani and the foundations of electrophysiology — Luigi Galvani became one of the greatest scientists of the 18th century with his research and the development of his theory on animal electricity. Nevertheless, it gave rise to one of the most passionate scientific debates in history when Alessandro Volta postulated that Galvani had confused intrinsic animal electricity with small currents produced by metals. Luigi Galvani in Search of Animal Electricity His work included stimulations on body parts in executed criminals.14, 15 Galvani's work also interested other scientists including Vincenzo Malacarne who, in 1792, was interested in recording electrical activity in the brain.16 Luigi Galvani's path to animal electricity Animal electricity and the birth of electrophysiology: the legacy of Luigi Galvani Luigi Galvani and animal electricity: two centuries after the foundation of electrophysiology
[64] Luigi Galvani: beginnings of electrophysiology - Hektoen International — After Galvani, Volta's first electric pile of zinc and silver (or copper and pewter) was described in 1800. Both Michael Faraday (1791-1867) and James Clerk Maxwell (1831-1879) were later to report their revolutionary experiments of electrical induction and electro-magnetism. Electric Powers in nerves
[65] Animal electricity and the birth of electrophysiology: the legacy of ... — In the scientific community, however, after the initial excitement and enthusiasm, some doubts emerged concerning Galvani's main hypothesis (elaborated in the Commentarius) that the electricity involved in the contraction of frog muscles had an animal origin.The controversy that developed over Galvani's interpretation had, as its protagonist, Alessandro Volta, a young and brilliant
[66] Special Issue: "Recent Advances in Ion Channels and Ion Channelopathies ... — Critical to this area of research is the use of electrophysiology focused on specific ion channel functioning, stemming from the seminal work from Hodgkin and Huxley . The traditional electrophysiological methods, however, require analysis of mutations individually which results in very low throughput.
[86] Technologic Advances in Cardiac Electrophysiology — Cardiac electrophysiology (EP) is a relatively young field. ... understanding of pathophysiology of arrhythmias and developments in pharmacotherapy have been modest compared with the recent advances in device therapy for arrhythmias and conduction disorders. ... N Engl J Med. 2023;389:1660-1671. doi: 10.1056/NEJMoa2307291.
[87] Advances in Cardiac Electrophysiology | Circulation: Arrhythmia and ... — Despite the global COVID-19 pandemic, during the past 2 years, there have been numerous advances in our understanding of arrhythmia mechanisms and diagnosis and in new therapies. We increased our understanding of risk factors and mechanisms of atrial arrhythmias, the prediction of atrial arrhythmias, response to treatment, and outcomes using machine learning and artificial intelligence. There
[93] Challenges and Lessons Learned From COVID-19 Trials: Should We Be Doing ... — On the basis of the COVID-19 experience and its challenges, planning of several large, efficient trials, and wider use of adaptive designs might change the future of clinical research. Pragmatism, integration in clinical care, efficient administration, promotion of collaborative structures, and enhanced integration of existing data and
[94] Guidance for Rebooting Electrophysiology Through the COVID-19 Pandemic ... — Many patients remain fearful about exposure in healthcare settings. 3,4 Creating a relatively COVID-19 safe clinical care continuum and environment is an important strategy that can regain patient confidence and enable healthcare institutions to start providing elective cardiovascular 7 and electrophysiology procedures. Rebooting
[98] Recent advances in genetic testing and counseling for inherited ... — 2. Genetic testing for inherited arrhythmias 2.1. Classic genetic testing: candidate gene approach Disease-causing genes for inherited arrhythmias have been successfully identified in the last three decades, resulting in a large impact on patient care. This success has largely been through the use of classical linkage mapping.
[99] Genetic Factors in Arrhythmia: Inherited Cardiac Patterns — Intro Understanding the genetic basis of arrhythmias is crucial for advancing cardiology. As inherited cardiac patterns gain attention, it becomes evident that individual health outcomes are significantly influenced by these genetic factors. By studying the intricate relationship between genetics and arrhythmias, researchers uncover vital insights that can transform diagnosis and treatment
[100] Update of diagnosis and management of inherited cardiac arrhythmias — The recent HRS/EHRA/APHRS expert consensus statement on the diagnosis and management of patients with inherited arrhythmia syndromes has updated the clinical diagnosis of congenital LQTS and BrS. Genetic studies have identified 13 forms of congenital LQTS in 50-80% of clinically affected patients. Genotype-phenotype correlations have been
[102] Management of anesthesia for procedures in the cardiac ... — A team-based approach with collaboration between cardiac electrophysiologists and anesthesiologists is required with careful preprocedural and intraprocedural planning. Given the recent advances in electrophysiology, there is a need for specialized cardiac electrophysiology anesthesia care to improve the efficacy and safety of the procedures.
[104] Advances in anesthesia technology are improving patient care, but many ... — Advances during the last several decades have led to important improvements in clinical monitoring technology and clinical practice development, not only in patients undergoing surgery or in patients being cared for in Intensive Care Units (ICUs) but also in ambulatory patients .These developments have contributed to great improvements in patient safety [3, 5,6,7
[106] Impact of Catheter Ablation on Arrhythmia Burden in Patients ... - PubMed — Background: Persistent shock-resistant atrial fibrillation (AF) is a challenging entity, with modest results from catheter ablation according to conventional survival analysis. Objectives: The aim of this study was to determine the effect of catheter ablation on atrial tachyarrhythmia (ATA) burden in persistent AF patients undergoing first-time ablation with the use of an implantable cardiac
[107] Catheter Ablation in Atrial Fibrillation: Recent Advances — Hence, new techniques for catheter ablation have arisen, such as non-thermal energy sources, novel catheters, electroanatomical mapping, and ablation of additional targets. In this review, we discuss the recent advances in the field of catheter ablation, including newer modalities for the prevention of adverse events and future perspectives.
[108] Catheter Ablation of Atrial Fibrillation: Technique and Future ... — The field has undergone significant advancements in recent years, yet pulmonary vein isolation continues to be the cornerstone of any atrial fibrillation ablation procedure. The purpose of this review is to provide an overview of the current techniques, emerging technologies, and future directions.
[123] Cardiogenetics: the role of genetic testing for inherited arrhythmia ... — Cardiogenetics: the role of genetic testing for inherited arrhythmia syndromes and sudden death - PubMed Search: Search Your saved search Name of saved search: Cardiogenetics: the role of genetic testing for inherited arrhythmia syndromes and sudden death Cardiogenetics: the role of genetic testing for inherited arrhythmia syndromes and sudden death Long QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, progressive cardiac conduction disease and the short QT syndrome comprise the inherited arrhythmia syndromes (IASs). Diagnosis is contingent on the ECG phenotype but genetic testing may help to confirm the diagnosis and provide information on the mechanism of arrhythmogenesis that may guide treatment and provide prognostic information in relation to the risk of sudden arrhythmic death. Sudden cardiac death in Long QT syndrome (LQTS), Brugada syndrome, and catecholaminergic polymorphic ventricular tachycardia (CPVT).
[126] Genetic testing for inherited arrhythmia syndromes and cardiomyopathies ... — Introduction. Inherited primary arrhythmia syndromes and cardiomyopathies are two groups of cardiac genetic diseases associated with an increased risk of sudden cardiac death (SCD) and/or heart failure. 1-4 The diagnostic approach to these diseases has been reported to be highly heterogeneous across European centres, with underuse of genetic testing more likely to occur in centres without
[127] New Insights Into the Genetic Basis of Inherited Arrhythmia Syndromes — Ventricular arrhythmias are caused by mutations of ion channels and their interacting proteins, predominantly involving potassium, sodium, and calcium handling. 4 Genetic studies have identified the specific genetic abnormalities that underpin these diseases, even permitting diagnosis in the deceased using postmortem genetic testing (the molecular autopsy). 3 Most arrhythmia syndromes are
[128] Electrophysiologic Testing: What to Expect for Arrhythmia Diagnosis — Electrophysiologic testing is a diagnostic procedure used to assess the heart’s electrical system and identify abnormalities in heart rhythm. Electrophysiologic testing (EP testing) is a specialized diagnostic procedure that evaluates the heart’s electrical activity to identify abnormalities in its rhythm and conduction system. Electrophysiology testing is used to evaluate the electrical pathways in the atria, helping to identify the triggers of AFib. With a PPV of 88% and an NPV of 90%, EP testing provides precise localization of abnormal electrical signals, which is essential for planning treatments like catheter ablation or medication management. The results of electrophysiologic testing provide valuable insights into your heart’s electrical system, helping your doctor diagnose and treat conditions such as atrial fibrillation, supraventricular tachycardia, or other arrhythmias.
[129] Electrophysiological Studies - Johns Hopkins Medicine — An electrophysiology study (EP study) is a test used to evaluate your heart's electrical system and to check for abnormal heart rhythms. Natural electrical impulses coordinate contractions of the different parts of the heart. This creates the heartbeat, or heart rhythm and keeps blood flowing the way it should.
[130] What is an Electrophysiology Procedure? Tests, Risks, and Benefits — An electrophysiology procedure is a series of tests that doctors use to evaluate the electrical activity of your heart. Doctors may also perform electrophysiology procedures to gauge the effectiveness of medications that they prescribe to help keep your heart beating typically. However, the catheter insertion into a blood vessel, which helps the doctor guide the catheter to your heart, is minimally invasive and requires careful observation during and after the procedure. A doctor usually orders an electrophysiology procedure when they believe you have a heart arrhythmia. Doctors may also use an electrophysiology procedure to determine the exact part of the heart that needs an ablation or to determine how well anti-arrhythmic medications work for you.
[131] PDF — Electrophysiology Studies? (continued) What happens during the test? Doctors and nurses do these tests at a hospital or clinic with special equipment in a room called the . electrophysiology lab, or EP lab. Sometimes, it's also . called the catheterization lab (cath lab). The test may take 1 to 4 hours. During the test:
[132] EP study - Mayo Clinic — Why it's done. An EP study gives your healthcare team a very detailed look at how electrical signals move through the heart. You may need an EP study if:. You have an irregular heart rhythm, called an arrhythmia. If you have an irregular or fast heartbeat, such as supraventricular tachycardia (SVT) or any other type of tachycardia, an EP study can help determine the best treatment.
[136] Electrophysiologic Study Indications and Evaluation (Electrophysiology ... — Electrophysiologic study indications and evaluation refers to the process of diagnosing and assessing heart rhythm disorders using specialized tests that study the electrical activity of the heart. ... An EP study may be used to identify these at-risk patients. This type of testing is especially beneficial for patients experiencing unexplained
[137] PDF — American Heart Association published "Guidelines for Clinical Intracardiac Electrophysiologic Studies."4 The guidelines divide indications for EPS into three classes. Class I conditions are those for which experts generally agree that EPS provides useful information: patients in this category should undergo EPS. Class II conditions
[138] PDF — Recent innovations in monitoring and remote management are revolutionizing the approach to arrhythmia care, offering continuous, real-time data that enhances diagnosis, treatment, and patient engagement . Impact on patient outcomes Enhanced diagnostic accuracy: Continuous monitoring *Corresponding author: Payal Patel, sDepartment of Cardiology, King George's Medical University, India, E-mail: Payal.p@yahoo.com Received: 02-Jul-2024, Manuscript No. jcpr-24-143527; Editor assigned: 04-Jul-2024, PreQC No. jcpr-24-143527(PQ); Reviewed: 18-Jul-2024, QC No. jcpr-24-143527; Revised: 23-Jul-2024, Manuscript No. jcpr-24-143527(R); Published: 30-Jul-2024, DOI: 10.4172/jcpr.1000268 Citation: Payal P (2024) Innovations in Monitoring and Remote Management of Cardiac Arrhythmias: Clinical Electrophysiology Applications. Wearable devices, implantable monitors, and telemedicine solutions provide continuous, real-time data that enhances the ability to manage arrhythmias effectively.
[144] Toward safer catheter-based electrophysiology procedures: First do no ... — In the past decade, major advances were made in catheter ablation for arrhythmias and implantation of cardiac implantable electronic devices.1 Catheter ablation for atrial fibrillation (AF) and ventricular tachycardia (VT) has become the standard of care for many patients presenting with these arrhythmias.2-4 In fact, the benefits and safety profile of ablation for AF have resulted in its
[145] Advances in management of electrophysiology and atrial fibrillation in ... — A total of 6500 catheter ablation procedures were performed in 2013-2014, compared with 2500 in 2007. This has resulted in an increasing requirement for anaesthesia in catheter laboratories. We describe the newest electrophysiology (EP) techniques to map and ablate arrhythmias, devices to reduce the incidence of stroke, and developments in
[146] Novel and Emerging Tools and Technologies in Cardiac Electrophysiology ... — Consequently, a large number of locations within the cardiac chamber(s) are recorded by the system during intracardiac movement of proprietary mapping/ablation catheters to create a 3D EAM.2 On the other hand, the EnSite NavX system (Abbott Laboratories, Chicago, IL, USA) is based on an electric field created using three pairs of orthogonal patches along the x-, y- and z-axes located on the patient’s chest and abdomen serving as references, whereas the latter system (Rhythmia HDx™; Boston Scientific, Natick, MA, USA) relies on both magnetic- and impedance-guided catheter localization.2
[149] Electrophysiological Testing of the Heart - Harvard Health — Many patients are able to feel palpitations (an irregular or fast heartbeat) from the rhythm changes. A few patients also experience shortness of breath or dizziness when they are not in a normal heart rhythm. ... However, if your doctors recommend electrophysiologic testing, they feel that this is a risk worth taking because it will allow them
[151] Electrophysiology (EP) Study: What It Is, What It's Used For — Get back to your normal activities the day after your test, with some limits on heavy lifting for up to a week afterward. What are the risks of this test? An electrophysiology test is generally a very safe procedure, but it has risks. These may include: Infection or bleeding where your healthcare provider put in the catheter. An abnormal heart
[174] Cardiac Mapping - an overview | ScienceDirect Topics — Cardiac mapping is an essential tool in arrhythmia diagnosis and treatment. Mapping information obtained from signal processing and image display algorithms in present day electroanatomic mapping systems are critically dependent on measured electrograms (EGMs) from catheters. A collection of local activation times (LAT) derived from EGMs within
[176] Impact of artificial intelligence arrhythmia mapping on time to first ... — The forward-solution AI mapping system analyzes 12-lead ECG data recorded from the patient during cardiac arrhythmias and compares the data with computational model-predicted electrograms from a large library of computational arrhythmia simulations. 10 The algorithm was validated in a multicenter, blinded, independently adjudicated study 8 and
[177] Intriguing Developments in Cardiac Mapping, Defibrillation, and Pacing — In the last few years, high-density mapping has become of pivotal importance, as it enables us to identify the critical site(s) of any possible reentry circuits of these complex arrhythmias. One of the latest revolutionary three-dimensional (3D) mapping systems is the AcQMap ™ cardiac mapping system (Acutus Medical, Carlsbad, CA, USA). This
[183] Cardiac Arrhythmia: Molecular Mechanisms and Therapeutic Strategies — Supraventricular arrhythmias are characterized by the presence of extra-cardiac complications, while ventricular arrhythmias have a high mortality rate. In this Special Issue, all of the papers on supraventricular arrhythmias, with the exception of Dr. Kayser's paper, are on the theme of atrial fibrillation (AF).
[186] Mechanisms of ventricular arrhythmias: from molecular fluctuations to ... — Ventricular arrhythmias have complex causes and mechanisms. Despite extensive investigation involving many clinical, experimental, and computational studies, effective biological therapeutics are still very limited. In this article, we review our current understanding of the mechanisms of ventricula …
[187] Arrhythmias - Types | NHLBI, NIH — Arrhythmias - Types | NHLBI, NIH There are many types of arrhythmias, depending on what part of the heart is affected and whether they cause a slow, fast, or irregular heart rate. Arrhythmias may happen in the atria (upper chambers of the heart) or the ventricles (lower chambers of the heart). Tachycardia is a resting heart rate that is faster than 100 beats per minute. This condition causes your heart to beat more than 400 beats per minute. Atrial flutter can cause the upper chambers of your heart to beat 250 to 350 times per minute. Ventricular arrhythmias start in your heart’s lower chambers, called the ventricles. Most adults have a resting heart rate of between 60 and 100 beats per minute.
[188] Understanding Arrhythmia: Types, Causes, and Treatments — Understanding Arrhythmia: Types, Causes, and Treatments | University of Iowa Health Care Understanding Arrhythmia: Types, Causes, and Treatments Email Understanding Arrhythmia: Types, Causes, and Treatments Share Understanding Arrhythmia: Types, Causes, and Treatments on Facebook Share Understanding Arrhythmia: Types, Causes, and Treatments on Twitter Share Understanding Arrhythmia: Types, Causes, and Treatments on LinkedIn Print Understanding Arrhythmia: Types, Causes, and Treatments UI Health Care’s heart and vascular services are here to help. Atrial fibrillation (Afib) – A common type of irregular heartbeat where the upper chambers of the heart quiver instead of beating properly "While some arrhythmias are genetic, lifestyle factors like stress, caffeine, and certain medications can also contribute. If you have symptoms of arrhythmia or risk factors like heart disease, don’t wait.
[189] Cardiac Arrhythmias and Their Management: An In-Depth Review of Current ... — Electrophysiological studies involve inserting catheters into the heart to map the electrical activity and identify the precise location of the arrhythmia, which is crucial for guiding treatment, particularly for catheter ablation procedures . Non-pharmacological treatments for cardiac arrhythmias include electrical cardioversion, catheter ablation, device therapy, and surgery. Device therapy includes pacemakers to treat bradycardia and maintain an adequate heart rate and implantable cardioverter-defibrillators (ICDs) for patients at risk of life-threatening ventricular arrhythmias to deliver shocks when needed. From traditional pharmacological treatments and electrical interventions to cutting-edge techniques like catheter ablation and novel device therapies, the landscape of arrhythmia management continues to advance, driven by ongoing research and technological innovations.
[191] The digital journey: 25 years of digital development in ... — The future digital aspects for electrophysiology Europace As described in the previous sections, EP has a history of utilizing advanced digital solutions and tools. With the current rapid advancement of digital technologies, commonly referred to as digital transformation, including AI using ML and deep learning, RM, wearables, and advanced
[192] From bits to bedside: entering the age of digital twins in cardiac ... — Digital twins represent a groundbreaking advancement in cardiac electrophysiology, offering unparalleled opportunities for personalized medicine and precision treatment. By creating dynamic, patient-specific models that integrate anatomical, electrophysiological, and clinical data, digital twins have enabled simulation and prediction of cardiac
[195] Electrophysiological Studies: Key to Arrhythmia Diagnosis & Care — Electrophysiological studies (EPS) are highly specialized diagnostic tests designed to evaluate the heart’s electrical activity. An electrophysiological study (EPS) is a diagnostic procedure that examines the heart’s electrical system. Electrophysiological studies (EPS) are advanced diagnostic tools used to assess the electrical activity of the heart and nervous system. An electrophysiological study (EP study) is a specialized diagnostic procedure used to assess the heart’s electrical system and identify irregular heart rhythms, also known as arrhythmias. While electrophysiological studies are a highly effective tool for diagnosing and treating heart rhythm disorders, they do have certain limitations and risks. Whether conducted through an invasive EP study or a non-invasive heart rhythm evaluation, these procedures are indispensable tools for understanding and addressing cardiac arrhythmias effectively.
[196] What to Expect from an Electrophysiological Study for Arrhythmias — An Electrophysiological study (EP study) is a specialized diagnostic procedure designed to assess the heart’s electrical activity. By mapping the heart’s electrical system, an EP study provides crucial insights into the underlying causes of irregular heartbeats and guides treatment options, such as medications, catheter ablation, or implantable devices like pacemakers. An Electrophysiological study, or EP study, is a minimally invasive procedure used to evaluate the heart’s electrical system. By offering a detailed view of the heart’s electrical activity, an EP study enables healthcare providers to develop personalized treatment plans. An Electrophysiological study (EP study) is a specialized diagnostic test that evaluates the electrical activity of the heart and nervous system. An electrophysiological study (EP study) is a specialized test designed to evaluate your heart’s electrical activity and diagnose arrhythmias.
[197] Electrophysiologic Study Indications and Evaluation — Electrophysiology (EP) study is an invasive percutaneous cardiac procedure used for the investigation and treatment of certain arrhythmias. The aims of conducting an EP study are to access the function of each component of the conduction system, identify the mechanism and precise focus for arrhythmia, risk stratification and determine the need for treatment or therapy, including ablation of
[207] Electrophysiology - an overview | ScienceDirect Topics — Electrophysiology is defined as a powerful tool used in neuroscience to study the function and connectivity of the nervous system by recording electrical activity in neurons and neuronal ensembles. Electrophysiology allows simultaneous recording from hundreds or thousands of cells, ion channels and neuronal activities (Viventi et al., 2011). Technological advancements have led to the creation of multielectrode arrays to measure extracellular action potentials and allow for measurement of hundreds of neurons simultaneously, facilitating network analysis, thus providing a more complete and complex view into electrophysiological properties (Berdondini et al., 2009; Nam and Wheeler, 2011). However, many scientists, even nonelectrophysiologists, consider electrophysiology techniques to be the backbone of neuroscience research—they are the most direct methods to investigate the electrical activity of neurons and the specific ions, receptors, channels, and signaling proteins that regulate their function.
[208] Innovative Treatment Strategies for Clinical Electrophysiology — This book highlights the advancements in different fields of clinical electrophysiology and gives the reader a good background of the established practices. To tackle such a wide topic, the book focuses on two main aspects: ablation and pacing, discussing the novel energy sources and approaches to rhythm restoration and control; devices and signal processing, highlighting the new available
[209] Innovative Treatment Strategies for Clinical Electrophysiology - Springer — It also presents the reader with selected strategies that could be a paradigm shifts for the field: in situ cell reprogramming, exploiting the newly founded achievements in epigenetic modification of somatic cells; artificial intelligence; cardiac digital twinning, which aims to collect the information from imaging, mechanics and electrophysiology and condense it into a patient-specific model for personalized treatment. Tomasz Jadczyk works as Assistant Professor at the Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland and postdoctoral researcher at the Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St Anne's University Hospital Brno, Brno, Czech Republic.
[210] The Future of Electrophysiology: How Technology is Shaping Heart Care — For those facing complex heart rhythm issues, advancements like leadless pacemakers, advanced ablation techniques, and wearable heart monitors offer new levels of precision and patient comfort. Dr. Arora’s expertise with leadless pacemaker implantation makes her a go-to specialist for patients seeking this innovative treatment in Delhi. Dr. Arora leverages these tools to monitor her patients’ heart conditions closely, reducing the need for frequent in-office visits while ensuring timely care. For heart failure patients, innovations in cardiac resynchronization therapy (CRT) devices and implantable cardioverter defibrillators (ICDs) are proving highly effective. Dr. Vanita Arora’s proactive approach to adopting these advancements makes her one of the best electrophysiologists in Delhi, offering cutting-edge solutions like leadless pacemakers, wearable monitors, and advanced ablation techniques.
[211] A Comprehensive Review on Advancements in Wearable Technologies ... — With their potential to refine diagnosis, optimize management, and ultimately enhance patient outcomes, these devices underscore the imperative of integrating wearable technologies into the clinical landscape to better cardiovascular healthcare delivery . Integrating wearable device data directly with electronic health records or practice management software amplifies the accessibility and usability of collected data for healthcare professionals, streamlining the process of informed decision-making and patient care . These devices empower individuals to monitor their health proactively and enable healthcare professionals to make more informed decisions by integrating wearable data into clinical workflows to optimize patient care . Additionally, exploring the applications of wearable devices in remote monitoring, personalized health insights, and disease management can yield significant advancements in cardiovascular care . Wearable technology: advancing healthcare through enhanced patient adherence to monitoring devices.
[212] Transforming Heart Failure Management: The Rise Of Wearable ... — Cutting-edge wearables and medical devices, like the Apple Watch and ECG patches, are reshaping contemporary medicine, particularly in heart failure management. These innovations, enabling real-time monitoring and immediate intervention through wearable defibrillators, mark a significant shift towards personalized, proactive care, impacting outcomes. This paper explores these advancements in
[230] Personalized imaging and modeling strategies for arrhythmia prevention ... — A major avenue in this direction is the creation and translation into clinical practice of novel clinical imaging- and simulation-based strategies for predicting an individual's risk of sudden cardiac death (SCD), and for the non-invasive planning of optimal personalized anti-arrhythmia therapies.
[231] Precision individualized medication strategies and challenges for ... — Personalized medicine for arrhythmias tailors' treatment strategies to the specific pathological mechanisms involved, recommending precise pharmacological interventions based on individualized diagnosis. Refer to Table 3 for detailed recommendations on specific drug use according to different arrhythmia types.
[232] Cardiac Arrhythmias and Their Management: An In-Depth Review of Current ... — Electrophysiological studies involve inserting catheters into the heart to map the electrical activity and identify the precise location of the arrhythmia, which is crucial for guiding treatment, particularly for catheter ablation procedures . Non-pharmacological treatments for cardiac arrhythmias include electrical cardioversion, catheter ablation, device therapy, and surgery. Device therapy includes pacemakers to treat bradycardia and maintain an adequate heart rate and implantable cardioverter-defibrillators (ICDs) for patients at risk of life-threatening ventricular arrhythmias to deliver shocks when needed. From traditional pharmacological treatments and electrical interventions to cutting-edge techniques like catheter ablation and novel device therapies, the landscape of arrhythmia management continues to advance, driven by ongoing research and technological innovations.
[254] Digital Health in Electrophysiology and Beyond: The Potential and the ... — “With great power and far-reaching capabilities come great responsibilities.” So concludes a new review paper, “Digital Health and the Care of the Arrhythmia Patient: What Every Electrophysiologist Needs to Know,” published in Circulation: Arrhythmia and Electrophysiology by a multi-institutional team of authors led by Khaldoun Tarakji, MD, MPH, Associate Section Head of Cardiac Electrophysiology at Cleveland Clinic and Director of the Center for Digital Health and Telemedicine in its Heart, Vascular & Thoracic Institute. “Once fully employed and integrated, digital health — whether through wearables or delivery of care — will truly transform healthcare as we know it,” observes Oussama Wazni, MD, Section Head of Cardiac Electrophysiology at Cleveland Clinic.
[257] Artificial Intelligence and Machine Learning in Electrophysiology—a ... — Purpose of review: To summarize the expanding role of artificial intelligence (AI) in cardiac electrophysiology. Recent findings: AI is uniquely powered to integrate variable data-streams and consider complex non-linear relationships. Deep learning algorithms can consider aspects in data with unappreciated relevance in order to produce results that are impossible with other methods. The wide
[258] Emerging role of artificial intelligence in cardiac electrophysiology — AI and ML have a huge potential in the field of cardiac EP, where current patient data including ECG; information from wearables, smart devices, and implantable devices; and cardiac imaging may improve our understanding of mechanisms, risk prediction, and personalized treatment for arrhythmias like AF.1 Advanced imaging and mapping techniques can be used to accurately identify ablation targets and improve invasive and noninvasive treatment of arrhythmias. Mechanistic computational modeling of the heart in an AI model presents novel precision technologies to predict risk of ventricular arrhythmias in patients with cardiac sarcoidosis54 and risk of AF recurrence following PVI in patients with paroxysmal AF.55 A supervised multivariable classifier learned both from the results of mechanistic modeling and from clinical and imaging biomarkers to predict clinical outcome.
[259] Trustworthy implementation of artificial intelligence in cardiology: a ... — Artificial intelligence (AI) is set to revolutionize cardiology, offering transformative advancements in diagnosis, treatment, and patient outcomes. 1 However, the integration of AI into clinical practice must be approached with precision and caution to ensure that these technologies are trustworthy, evidence-based, and ultimately beneficial for patients.
[261] The Impact of Genetic Research on Electrophysiology, According to Dr ... — Advancements in genetic research have significantly influenced the field of electrophysiology, transforming the way medical professionals understand, diagnose, and treat cardiac arrhythmias and other electrical disorders of the heart. Dr Ian Weisberg, a leading expert in electrophysiology, has been at the forefront of exploring how genetic discoveries are reshaping this specialized area of
[262] The Intersection of Genetics and Cardiac Electrophysiology: Dr. Ian ... — By studying these genetic links, Dr. Weisberg and his peers are enhancing early diagnosis, risk assessment, and targeted treatments for patients with inherited arrhythmias. Personalized Medicine: A Genetic Approach. One of the most significant implications of genetic research in cardiac electrophysiology is the advent of personalized medicine. Dr.
[263] Gene Therapy for the Treatment of Cardiac Arrhythmias: Current and ... — Many diseases such as atrial fibrillation (AF) and ventricular tachycardia (VT) are difficult to cure with either invasive or pharmacological therapy. 2 Given the challenges of treating patients with heart rhythm disorders, scientists are actively investigating new treatment paradigms such as the use of gene therapy to treat cardiac arrhythmias
[264] Patient Perceptions of Emerging Gene Therapies for Arrhythmogenic Right ... — BACKGROUND: No disease-specific therapy currently exists for arrhythmogenic right ventricular cardiomyopathy (ARVC), a progressive cardiogenetic condition conferring elevated risk for ventricular arrhythmias, heart failure, and sudden cardiac death. Emerging gene therapies have the potential to fill this gap. However, little is known about how adults with ARVC, or any other inherited
[269] PDF — Catheter ablation has become the curative treatment for various cardiac arrhythmias. Extending the indications from simple supraventricular tachycardias to complex arrhythmias such as ventricular tachycardia or atrial fibrillation (AF) has led to more challenging procedures. These procedures have prolonged fluoroscopy exposure and the need for
[272] Contemporary Mapping Techniques of Complex Cardiac Arrhythmias ... — Cardiac electrophysiology has moved a long way forward during recent decades in the comprehension and treatment of complex cardiac arrhythmias. Contemporary electroanatomical mapping systems, along with state-of-the-art technology in the manufacture of electrophysiology catheters and cardiac imaging modalities, have significantly enriched our
[277] Telemedicine ECG: Collecting and Interpreting Results in the Growing ... — Telemedicine is not a new concept, ... The electrophysiology community is well suited for this type of effort, they stress, because "all preobtained data, including ECGs, ambulatory ECG monitoring, cardiac imaging, and coronary angiography can be adequately reviewed electronically. Digital tools such as direct-to-consumer mobile ECG and
[278] Virtual Visits for Arrhythmia Patients: Looking Back to Look Forward — Cleveland Clinic has been offering virtual visits to established patients with arrhythmia since 2016. "Electrophysiology is one of the specialties best equipped to offer virtual care since we've been doing it for a while and have the tools to accomplish it," says Dr. Tarakji, a nationally recognized expert in electrophysiology telemedicine.