Autonomic nervous system influences on qt interval in normal subjects

• Published in: Journal of the American College of Cardiology Vol. 39; no. 11; pp. 1820 - 1826
• Main Authors: Magnano, Anthony R, Holleran, Steve, Ramakrishnan, Rajasekhar, Reiffel, James A, Bloomfield, Daniel M
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 05.06.2002; Elsevier Science; Elsevier Limited
• Subjects: Adult; Autonomic Nervous System - physiology; Biological and medical sciences; Cardiac arrhythmia; Cardiology; Electrocardiography; Female; Fundamental and applied biological sciences. Psychology; Heart rate; Heart Rate - physiology; Hemodynamics. Rheology; Humans; Male; Middle Aged; Reference Values; Statistical methods; Vertebrates: cardiovascular system; United States > US; Wisconsin; ECG; QTc; HR; QT; Human; Heart rate; QT interval; Autonomic nervous system; Physiology; Circulatory system; Hemodynamics

We sought to determine whether the relationship between heart rate (HR) and QT interval (QT) differs as HR increases in response to exercise, atropine and isoproterenol. Autonomic nervous system influences on repolarization are poorly understood and may complicate the interpretation of QT measuremen...