The visceral adiposity index predicts the severity of hyperlipidaemic acute pancreatitis.

It is important to clarify the severity of acute pancreatitis (AP) in the early stages of the disease. The visceral adiposity index (VAI), calculated using the waist circumference (WC), body mass index (BMI), triglyceride (TG) levels, and high-density lipoprotein cholesterol (HDL-c), indirectly reflects visceral adiposity function and can be used to explore its value in evaluating and predicting the severity of hyperlipidaemic acute pancreatitis (HLAP). The VAIs of 227 patients with HLAP were calculated by retrospective analysis of body parameters and laboratory indicators. The correlation between the VAI and HLAP severity, local complications, and systemic inflammatory response syndrome (SIRS) response was analysed. The VAI was significantly higher in patients with severe and moderately severe AP than in patients with mild AP (both p < 0.05). Length of hospital stay (LOS), AP severity, systemic complications, Acute Physiology and Chronic Health Evaluation II (APACHE-II) score, and SIRS score were significantly correlated with the VAI in HLAP patients. The VAI had the highest area under the curve of receiver operating characteristics (ROC) (0.755, 95% confidence interval [CI], 0.691-0.819) for predicting AP severity. The multivariate-adjusted odds ratio (HR) for the VAI in the relationship of body parameters and the severity of HLAP was 3.818 (95% CI, 1.395-10.452). Our study shows that the VAI is a valuable indicator for predicting and assessing the severity of hyperlipidaemic acute pancreatitis. Its increase is closely related to poor prognosis in patients with HLAP.