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The Relation Between Obesity and Left Ventricular Diastolic Function in Young People: A Cross-Sectional Study Publisher



Shemirani H1 ; Tajmirriahi M2 ; Nikneshan A3 ; Kleidari B4
Authors
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Authors Affiliations
  1. 1. Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Cardiology, Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Department of General and Laparoscopic Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: ARYA Atherosclerosis Published:2022


Abstract

BACKGROUND: It has been proposed that left ventricular diastolic dysfunction (LVDD) is a possible physiological link between high body mass index (BMI) and future occurrence of heart failure (HF). The present cross-sectional study was aimed to analyze the association between BMI and LVDD by transthoracic echocardiography (TTE). METHODS: This study was conducted from May 2017 to September 2019 in Khorshid Hospital of Isfahan University of Medical Sciences, Isfahan, Iran. Based on the calculated BMI (kg/m²), patients were divided into three groups: group 1: subjects with BMI < 25, as a normal group (n = 75), group 2: volunteer cases with 40 > BMI ≥ 30, as an obese group (n = 98), and group 3: patients with BMI ≥ 40, as a morbidly obese group (n = 100). TTE was performed by a trained cardiologist and associated variables including left atrium (LA) volume, E, septal e’, lateral e’, and E/e’ were assessed and also subjects were characterized as normal diastolic function, abnormal diastolic function, and inconclusive diagnosis of diastolic dysfunction (DD). RESULTS: Apart from the ejection fraction (EF) and the tricuspid regurgitation velocity (TRV), there was a significant difference between the other echocardiographic variables including LA volume, E, septal e’, lateral e’, and E/e’ (P < 0.05). One patient with morbid obesity in our study revealed LVDD. There was no significant difference between three groups (P = 0.42). CONCLUSION: There is no considerable relationship between obesity and LVDD. It seems that the absence of associated comorbidities such as diabetes, coronary disorders, etc. plays a crucial role in preventing LVDD, but for realistic and definitive decision, more cellular and molecular investigations and studies with larger sample size are necessary. © 2022, Isfahan University of Medical Sciences(IUMS). All rights reserved.
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