Electrocardiographic characteristics in the underweight and obese in accordance with the World Health Organization classification

• DOI: 10.1016/j.ijcme.2015.10.006
• Publication Date: 2015-10-30T18:58:28Z
• Authors: Satoshi Kurisu; Hiroki Ikenaga; Noriaki Watanabe; Tadanao Higaki; Takashi Shimonaga; Ken Ishibashi; Yoshihiro Dohi; Yukihiro Fukuda; Yasuki Kihara
• Keywords: Underweight

It is clinically important to recognize how the underweight or obese affects electrocardiogram (ECG). We assessed effects of body mass index (BMI) on QRS axis R-wave heights. From daily outpatient electrocardiograms with sinus rhythm, 203 were selected. The patients classified into four groups: (< 18.5 kg/m2), normal weight (18.5–24.9 overweight (25–29.9 kg/m2) and (≥ 30 kg/m2). With increasing BMI, shifted rightward leftward. There was a significant inverse correlation between BMI (r = − 0.60, p < 0.001). Multivariate linear regression analysis among age, female, hypertension, left ventricular internal dimension (LVM) revealed that an independent determinant (β 0.52, 0.0001). Although LVM increased heights in leads V4-5 similar underweight, overweight. significantly lower paradoxically than other groups. Sokolow–Lyon corrected by decreased progressively. Our results suggest strongly associated