Visceral fat volume may predict hepatic fibrosis in patients with NAFLD: JAPI
In patients with BMI<25, visceral fat was not a predictor of advanced fibrosis. Kerala: Measuring visceral fat volume at t L3-L4 level ≥167.5 cm3 predicts advanced hepatic fibrosis in patients with nonalcoholic fatty liver disease (NAFLD), a recent study has stated. At a cutoff of 180cm3, visceral fat volume predicted advanced fibrosis in obese males. The study was published in the...
In patients with BMI<25, visceral fat was not a predictor of advanced fibrosis.
Kerala: Measuring visceral fat volume at t L3-L4 level ≥167.5 cm3 predicts advanced hepatic fibrosis in patients with nonalcoholic fatty liver disease (NAFLD), a recent study has stated. At a cutoff of 180cm3, visceral fat volume predicted advanced fibrosis in obese males. The study was published in the Journal of the Association of Physicians of India.
Nonalcoholic fatty liver disease is one of the main causes of chronic liver disease. The spectrum of NAFLD includes nonalcoholic steatohepatitis (NASH), simple steatosis, cirrhosis, and advanced fibrosis. Jijo Varghese, senior resident, Medical College Thiruvananthapuram, Thiruvananthapuram, Kerala, India, and colleagues aimed to calculate visceral fat volume at the L3–L4 vertebral level and its association with hepatic fibrosis assessed by transient elastography.
The cross-sectional study included all patients above 18 years undergoing computed tomography (CT) abdomen in the Department of Radiodiagnosis of Medical College Thiruvananthapuram during the study period with NAFLD. Transient elastography was performed. Patients were divided into advanced fibrosis (>10 kPa) and without advanced fibrosis (<10 kPa). The area under the receiver operating characteristic (AUROC) curve was plotted. Sixty-four patients comprised 36 males and 28 females.
The study was conducted in the Department of Medical Gastroenterology along with the Department of Radiology, Medical College Thiruvananthapuram over a study period of 2 years (2016–2018).
The key findings of the study were as follows:
- 46% of patients were having advanced fibrosis (transient elastography>10 kPa) and 54% of patients were without advanced fibrosis.
- About 0.733 was the AUROC for visceral fat in predicting advanced fibrosis.
- The cutoff was 167.5cm3 (sensitivity was 77.4% and specificity was 51.5% in predicting advanced fibrosis).
- Age, weight, BMI, and visceral fat volume measured at L3–L4 level, HbA1c, FBS, and ferritin were independent predictors of advanced fibrosis.
The researchers wrote, "the AUROC for visceral fat in predicting advanced fibrosis was about 0.733. The cutoff was 167.5cm3 (sensitivity was 77.4% and specificity was 51.5% in predicting advanced fibrosis)."
Reference:
Varghese J, Devadas K, Joseph RC, et al. Assessment of Visceral Fat Volume and Its Correlation with the Severity of Hepatic Fibrosis in Patients with NAFLD. J Assoc Physicians India 2022;70(9):23–24.
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