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Updated: Aug 16, 2026

Microelectrode Array Recording of Sinoatrial Node Firing Rate to Identify Intrinsic Cardiac Pacemaking Defects in Mice
Published on: July 5, 2021
Gender differences in cardiac arrhythmias
Eric Schulze-Bahr1, Paulus Kirchhof, Lars Eckardt
1Department of Cardiology and Angiology, University Hospital Muenster, Muenster, Germany. heart@unimuenster.de
Abstract:
Mild gender-specific differences in myocellular and invasive electrophysiology have been described recently. Importantly, the QT interval is slightly prolonged in women, when compared to men. In men atrial fibrillaton, preexcitation and ventricular tachycardia are found more often. Modifications of the cellular "milieu" come from hormonal factors and the autonomous nervous system. The interaction of theses influences with regional cellular factors will help us in the future to analyze gender-specific factors of arrhythmogenesis and develop treatment and prevention strategies.
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