Effects of Gender on Electrocardiography in Subjects with Shortened Ventricular Depolarization (QRS)

Background Distinctions between electrocardiograms of female and male subjects have been recognized for many years. Due to these differences, arrhythmias in each gender have a tendency to differ. In our study, we aimed to compare electrocardiography intervals between men and women with short QRS dur...

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Bibliographic Details
Published in:Annals of noninvasive electrocardiology 2016-05, Vol.21 (3), p.272-279
Main Authors: Aydin, Fatih, Aktoz, Meryem, Altun, Armagan, Gursul, Erdal, Aksit, Ercan
Format: Article
Language:English
Subjects:
accelerated depolarization
Adult
Aged
Aged, 80 and over
Biomarkers - blood
Electrocardiography
Female
Gender
Heart Conduction System - physiology
Heart rate
Heart Rate - physiology
Humans
Male
Middle Aged
Original
repolarization parameters
Sex Factors
shortened QRS
Ventricular Function - physiology
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Summary:Background Distinctions between electrocardiograms of female and male subjects have been recognized for many years. Due to these differences, arrhythmias in each gender have a tendency to differ. In our study, we aimed to compare electrocardiography intervals between men and women with short QRS durations. Methods Subjects with a QRS interval of ≤80 ms were included in the study. Patients were grouped by gender and the parameters were compared. Patients with diseases that might affect QRS interval and/or who were on medications were excluded. The electrocardiogram intervals of the subjects were measured, Holter monitors were placed, and parameters of time‐based heart rate variation were analyzed. Results A total of 100 patients (55% female) were included in the study. According to statistical analysis, no significant difference between the genders was observed in the heart rate or in the parameters, such as QT, JT, JTp, and TpTe intervals or heart rate‐corrected QTc, JTc, JTpc, and TpTec intervals, which affect repolarization and are known to be arrhythmia precursors by shortening or elongation. No statistically significant difference was found between the two groups for the parameters of heart rate variability time measures (SDNN, SDANN, rMSSD, and pNN50). Conclusion We observed that when the QRS interval gets shorter, repolarization differences between the genders disappear. New studies are required on this subject.
ISSN:1082-720X
1542-474X
DOI:10.1111/anec.12296