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Year : 2020  |  Volume : 6  |  Issue : 1  |  Page : 23-32

Correlation of systolic and diastolic time intervals with demographic and anthropometric parameters in young adults

Department of Physiology, Deccan College of Medical Sciences, Hyderabad, Telangana, India

Correspondence Address:
Mehnaaz Sameera Arifuddin
Department of Physiology, Deccan College of Medical Sciences, Kanchanbagh (PO), Hyderabad - 500 058, Telangana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpcs.jpcs_56_19

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Context: Dimensions of vasculature may vary with height, weight, and build of the individual. This may, in turn, influence the time intervals during cardiac cycle. Aims: The aim of this study was to correlate the systolic and diastolic time (DT) intervals (preejection period [PEP], ejection time [ET], upstroke time [UT], DT, pulse duration [PD], and ejection slope [ES]) of pulse waves recorded from all four limbs in relation to age, gender, weight, height, heart rate, and blood pressure and to compare these cardiac time intervals between individuals with or without parental history of hypertension. Settings and Design: Ninety-eight healthy MBBS students in the age group of 19–21 years were included. Subjects and Methods: Students' history and demographic data were noted. Anthropometric measurements were recorded. The measurement of peripheral arterial pressures (in all four limbs) and determination of cardiac intervals (PEP, ET, UT, DT, PD, and ES) was done by PeriScope. Statistical Analysis Used: Data were analyzed using SPSS version 17.0. Results: Independent sample t-test showed statistically significant differences between genders with weight, height, waist circumference, and waist–hip ratio. Statistically significant differences existed between right arm systolic blood pressure, left arm systolic blood pressure, and left arm pulse pressure among males and females. Significant differences among males and females were observed in some of the cardiac time intervals. Mean arterial blood pressure recorded in all four limbs showed a significant negative correlation with right arm ES in males and left arm ES in females. Conclusion: Since gender, anthropometric parameters, and blood pressure influence cardiac time intervals, these should be adjusted for when deriving inference on left ventricular performance.

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