ABSTRACT
AIM: To determine the correlation between insulin resistance and left ventricular systolic function in obese women. METHODS: 44 obese (BMI > or =25 kg/m2) and 45 normal weight women were studied. They had no other pathological conditions. Echocardiograms were undertaken in our echocardiographic laboratory following standard methods. The homeostasis model was used to assess insulin resistance (HOMA IR). RESULTS: Ejection fraction (p =0.22) and fractional shortening (p= 0.58) were not difference between obese women and the normal group. There was no correlation between insulin resistance and left ventricular systolic function. CONCLUSION: There was no correlation between insulin resistance and left ventricular ejection fraction.
Subject(s)
Adolescent , Adult , Case-Control Studies , Echocardiography , Female , Humans , Insulin Resistance/physiology , Middle Aged , Obesity/physiopathology , Stroke Volume/physiology , Systole/physiology , Ventricular Function, Left/physiologyABSTRACT
AIM: To determine the direct effect of obesity on echocardiographic indices of diastolic left ventricular function METHODS: 44 obese (BMI > or =25 kg/m2) and 45 normal weight women were studied. They had no other pathological conditions. Echocardiographic indices of diastolic function were obtained, and dysfunction was assumed when at least two values differed by > or =2 SD from the normal weight group. RESULTS: In obese subjects, the values of maximum velocity of active mitral filling (A) were increased and pulmonary diastolic velocity was decreased significantly (p< 0,01); all other diastolic variables were unchanged. Subclinical diastolic dysfunction tend to be more prevalent among obese subjects but it was not significantly different from non obese (p= 0.11), being present in nine obese (20.5%) and 4 normal (8.9%) subjects. CONCLUSION: Subclinical left ventricular diastolic dysfunction is present in obese women.