Sex-dependent electrocardiographic pattern of cardiac repolarization

HÉCTOR BIDOGGIA; JUAN P MACIEL; NORBERTO CAPALOZZA; SUSANA MOSCA; ENRIQUE J BLAKSLEY; ESTEBAN VALVERDE; GUILLERMO BERTRÁN; PEDRO ARINI; MARCELO BIAGETTI; RICARDO QUINTEIRO

AMERICAN HEART JOURNAL, THE

MOSBY-ELSEVIER

Lugar: Amsterdam; Año: 2000 vol. 140 p. 430 - 436

0002-8703

Background: Although sex-dependent differences in cardiac repolarization have been known for many years, few attempts have been carried out to define the individual contribution of each electrocardiographic (ECG) repolarization variable to the sex-dependent pattern.Method and results: We analyzed several ECG repolarization variables that reflect both the duration and the rate of repolarization in 500 normal healthy subjects between the ages of 20 and 80 years (250 men and 250 women) and distributed into 5 groups according to age. Cardiac repolarization, measured in the precordial lead exhibiting the highest T-wave amplitude, was found to be shorter and faster in normal men compared with normal women (P