Assessment of Severity of Pancreatitis by Computerized Tomography Using Revised Atlanta Classification and Comparison with BISAP Clinical Scoring System

Abstract Background: Untreated acute pancreatitis can have high morbidity and mortality. It is a serious gastrointestinal emergency. Its incidence is approximately 51.0 % and it can cause both local and systemic problems. The diagnosis usually involves laboratory tests like amylase and lipase as well as an ultrasound exam. The ideal imaging test is a contrast-enhanced CT scan. This study used scoring systems based on laboratory and radiological investigations to determine the clinical progression and outcome. Methods : Patients who were diagnosed with acute pancreatitis and in whom computed tomography was done were included. From the imaging findings, the category and subcategory of acute pancreatitis and types of fluid collections were described in these patients using the revised Atlanta classification. BISAP score was calculated in all these patients. The clinical outcome assessed in these patients is the duration of stay in the hospital, mortality, presence of persistent organ failure, the occurrence of infection and need for intervention. Finally, the correlation between the Revised Atlanta classification and BISAP score was analyzed and compared with clinical outcomes. Results: The analysis of the correlation between Revised Atlanta classification severity grade and BISAP score, among the n=57 patients with mild acute pancreatitis n=56, had BISAP score less than 3 and only one had BISAP score greater or equal to three. Among the n=25 patients graded as moderately severe acute pancreatitis, n=20 cases had a BISAP score of less than 3 and n=5 had BISAP score greater than or equal to three. Among the n=08 patients graded as severe acute pancreatitis, n=3 had a BISAP score of less than 3 and n=5 had BISAP score greater than or equal to three. Conclusion: Standardizing nomenclature and facilitating proper documentation of a variety of imaging abnormalities in acute pancreatitis is made possible by incorporating the new Atlanta categorization system into daily practice. We can triage, predict, and treat patients with acute pancreatitis with greater precision by integrating the new Atlanta classification with BISAP clinical grading, significantly improving medical care.