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Direct Measurement of Conduction Velocity in In situ Specialized Conducting System of Mammalian Heart.
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1959
Year
Cardiac MuscleBipolar Electro-gramsBiomedical EngineeringCardiovascular FunctionDog HeartsElectrophysiological EvaluationCardiologyBiophysicsCardiac MechanicCardiovascular ImagingHealth SciencesAssisted CirculationBundle BranchesNeurophysiologyCardiac PhysiologyPhysiologyMammalian HeartElectromyographyCardiac ElectrophysiologyElectrophysiologyCardiovascular PhysiologyConduction VelocityMedicineDirect MeasurementAnesthesiology
SummaryBy use of a pump-oxygenator and cardiopulmonary bypass, bipolar electro-grams have been recorded under direct vision from the bundle of His, the right and left bundle branches and peripheral Purkinje system of dog hearts. Conduction velocity from the bundle of His to bundle branches is 1.0-1.5 m/sec, while in the false tendons this value is 3-4 m/sec at 36°C.