Correlation Between BMI and Severity of Acute Pancreatitis: A Retrospective Study

Background Pancreatitis, marked by sterile inflammation of the pancreas, can present as either acute or chronic. It involves the premature activation of proteolytic enzymes, leading to autodigestion, inflammation, and potential systemic effects. This study investigates the impact of obesity on the severity of acute pancreatitis, given its role in systemic inflammation and its association with severe morbidity and mortality. Methods A retrospective analysis was conducted on patients treated for acute pancreatitis over a five-month period at the Royal Albert Edward Infirmary, Wrightington, Wigan and Leigh (WLL) NHS Foundation Trust, Wigan, United Kingdom. Patients were evaluated using diagnostic criteria such as abdominal pain, elevated serum enzyme levels, and imaging results. The study explored correlations between BMI and pancreatitis severity, hospital length of stay, and complications, applying the Atlanta severity classification. Results The analysis revealed a weak, statistically insignificant correlation between BMI and the severity of acute pancreatitis, hospital stay length, and complications. This was consistent across various statistical methods, including Pearson correlation coefficients and multiple linear regression. These findings suggest that, while obesity may influence the inflammatory response in acute pancreatitis, it does not have a significant impact on clinical outcomes within this cohort. Conclusions The study highlights the complex role of obesity in exacerbating pancreatic inflammation but also emphasizes the need for larger, more definitive studies to explore this relationship further. It underscores the importance of early recognition and intervention in managing acute pancreatitis, regardless of BMI status.