Proportion of Pancreatic Necrosis among Patients with Acute Pancreatitis and Association between High-Density Lipoprotein (HDL Cholesterol) and Pancreatic Necrosis – A Prospective Observational Study from Kerala, South India
BACKGROUND Acute pancreatitis is a very common disease and severe acute pancreatitis is life threatening and needs early identification. Current severity predicting indices in acute pancreatitis are cumbersome. There have been previous reports of low HDL cholesterol in life threatening acute pancreatitis. Previous studies in this regard were done in a single ethnicity population and needed to be validated in other ethnic groups. We wanted to estimate the proportion of pancreatic necrosis among the patients with acute pancreatitis attending Government Medical College, Thiruvananthapuram. We also wanted to compare the mean HDL values in those who developed pancreatic necrosis and those who didn’t develop pancreatic necrosis and evaluate the association between HDL value measured 48 – 72 hours of onset of symptoms and pancreatic necrosis. METHODS This was a prospective observational study conducted among 271 patients diagnosed with acute pancreatitis in Government Medical College Hospital, Thiruvananthapuram. Consecutive sampling method was used. RESULTS There were 42 cases of pancreatic necrosis out of 271 cases. The mean HDL of those patients with pancreatic necrosis was found to be less than those without necrosis (P < 0.001). Mean HDL value among those having pancreatic necrosis was 17.7 whereas those without necrosis was 34.9. CONCLUSIONS Proportion of pancreatic necrosis was 15.5 %. The mean HDL measured at 48 hours of symptom onset among the necrotising pancreatitis patients was significantly low when compared to the non-necrotic group (17.7 vs 34.9). All the patients with pancreatic necrosis had their HDL less than 40. Thus, an inference that low HDL at 48 hours of symptom onset was associated with higher incidence of pancreatic necrosis and severe pancreatitis could be made. KEYWORDS Pancreatitis, HDL, Pancreatic Necrosis