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Ventricular repolarization in overweight and normal weight healthy young men
Selma Arzu Vardar1, Levent Oztürk, Armağan Altun
1Department of Physiology, Faculty of Medicine, Trakya University, Edirne, Turkey. arzuvardar22@hotmail.com
Summary
Overweight young men show no significant differences in ventricular repolarization compared to normal weight men. Body Mass Index (BMI) did not correlate with corrected or uncorrected repolarization parameters.
Area of Science:
- Cardiology
- Physiology
Background:
- Ventricular repolarization, assessed by QT and JT intervals, is crucial for cardiac electrical stability.
- Newer parameters like JTa and TaTe intervals may offer insights into arrhythmogenesis.
- The impact of Body Mass Index (BMI) on these repolarization parameters in young men remains underexplored.
Purpose of the Study:
- To compare ventricular repolarization parameters between overweight and normal weight healthy young men.
- To investigate the relationship between BMI and various ventricular repolarization metrics.
Main Methods:
- A cross-sectional study included 36 overweight (BMI 25-29.9 kg/m2) and 149 normal weight (BMI 18.5-24.9 kg/m2) young men.
- Ventricular repolarization parameters (QT, JT, JTa, TaTe, RR) and their heart rate-corrected values (QTc, JTc, JTac, TaTec) were measured from lead V2.
- Statistical analysis compared these parameters between the two BMI groups.
Main Results:
- No significant differences were observed in any ventricular repolarization parameters (QT, JT, JTa, TaTe, RR, QTc, JTc, JTac, TaTec) between overweight and normal weight groups.
- Neither uncorrected nor heart rate-corrected ventricular repolarization parameters showed any correlation with BMI.
Conclusions:
- Overweight status, defined by BMI, does not appear to significantly alter ventricular repolarization features in healthy young men.
- These findings suggest that BMI alone may not be a primary determinant of ventricular repolarization duration in this demographic.
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