Correlation of Intraabdominal Fat Accumulation and Coronary Stenosis: Significance of Abdominal Wall Fat Index (AFI)

Abstract

Abdominal wall Fat Index (AFI), which indicates the ratio of visceral fat areas to subcutaneous fat areas were calculated using ultrasonography, and the index's correlation with coronary stenosis was investigated. The subjects were 80 patients (55 males and 25 females) whose body mass indices were 20 to 26. The coronary stenosis was evaluated by coronary angiography. Stenosis score was calculated as the sum of stenosis points of each fifteen AHA segments of coronary artery. The subjects were divided into 2 groups according to AFI.
There were no significant differences in the levels of serum total cholesterol, triglyceride and HDL-cholesterol, and the incidences of diabetes mellitus, hypertension and smoking, between high-AFI group (male≥1.0 and female≥0.7) and low-AFI group (male<1.0 and female<0.7).
The frequency of coronary stenosis and the coronary stenosis score were higher in high-AFI groups for both men and women than in low-AFI groups.
The results suggest that AFI is a risk factor for coronary stenosis.