Neonatal Pulmonary Physiology Overview

Principles

Definition

Neonatal pulmonary physiology is the specialized field of study concerned with the functional development and operation of the respiratory system in newborn infants. It investigates the complex physiological transitions occurring at birth, the unique mechanical and gas exchange properties of the neonatal lung, and the pathophysiological basis of respiratory disorders specific to this developmental stage.

Ontological type

Developmental Lung Physiology

Fetal-to-Neonatal Transition

Pathophysiology and Disorders

Key developments

Key Figures

Perinatal Transition & Ventilation era

Peter A.M. Auld [1] worked across Harvard University [3] and the University of Washington [4] during this era. His 1961 papers [7][8] on the circulation in the neonatal period and the respiratory distress syndrome clarified neonatal hemodynamics and the interplay between cardiac and pulmonary transition, informing early physiologic approaches to stabilization. Michaël Heymann [2] is associated with the University of California, San Francisco [5] and the University of California, San Diego [6] during this era. His 1976 study on Persistent pulmonary hypertension of the newborn infant [9] highlighted elevated pulmonary vascular resistance as a key determinant of transitional physiology and guided later ventilation and management strategies.

Surfactant and Vascular Modulation era

John P. Kinsella [1] was a leading figure in neonatal pulmonary physiology during the surfactant and vascular modulation era, with active affiliations at University of California, San Francisco [3] and Northwestern University [4]. His work on inhaled nitric oxide for persistent pulmonary hypertension of the newborn included Low-dose inhalational nitric oxide in persistent pulmonary hypertension of the newborn [7], the randomized multicenter trial of inhaled nitric oxide and high-frequency oscillatory ventilation in severe, persistent pulmonary hypertension of the newborn [8], and Inhaled Nitric Oxide Enhances Distal Lung Growth after Exposure to Hyperoxia in Neonatal Rats [9], which collectively advanced targeted vascular modulation and supported safer integration with lung-protective ventilation in this era. Eduardo Bancalari [2] contributed across University of Washington [5] and Emory University [6] during this era. His key contributions include serial determination of pulmonary function in infants with chronic lung disease [10], mechanisms for episodes of hypoxemia in preterm infants undergoing mechanical ventilation [11], and co-authorship on the 1997 randomized trial of inhaled nitric oxide and high-frequency oscillatory ventilation [8], which helped standardize monitoring and ventilation strategies in neonatal care.

Oxygen and Vascular Biology era

Mikko Hallman [1] is a leading figure in neonatal pulmonary physiology during the Oxygen and Vascular Biology era, with affiliations at the Massachusetts Institute of Technology [3] and Stanford University [4]. He co-authored the European Consensus Guidelines on the Management of Neonatal Respiratory Distress Syndrome in Preterm Infants – 2010 Update [8] and the 2013 Update [7], standardizing oxygen and ventilatory management and highlighting vascular injury prevention as a central concern of this era. Henry L. Halliday [2] is a pivotal contributor in this era, with affiliations at the University of Groningen [5] and University College London [6]. Through the same European Consensus Guidelines – 2010 Update [8] and 2013 Update [7], he helped harmonize neonatal respiratory care across Europe, supporting oxygen-sparing strategies, noninvasive physiologic monitoring, and risk stratification for bronchopulmonary dysplasia and pulmonary hypertension.