Acute Pancreatitis Classifications: Basis and Key Goals.

Area of Science:

• Gastroenterology and Hepatology
• Surgical Gastroenterology
• Clinical Medicine

Background:

• Acute pancreatitis (AP) severity classification is crucial for patient management and outcomes.
• Existing classifications like the Revised Atlanta Classification (RACAP) have limitations in defining severity and complications.
• The Determinant-Based Classification of Acute Pancreatitis Severity (DBCAPS) offers an alternative approach.

Purpose of the Study:

• To evaluate and compare the efficacy of RACAP and DBCAPS in classifying AP severity and local complications.
• To analyze the commonalities and differences between RACAP and DBCAPS based on clinical data.
• To explore the potential of combining both classification systems for improved clinical practice and research.

Main Methods:

• Retrospective analysis of 573 AP patients admitted between December 2011 and December 2014.
• Classification of AP severity and complications using both RACAP and DBCAPS criteria.
• Statistical comparison of classification outcomes, including mild, moderate, and severe cases, and observed complications.

Main Results:

• Significant differences were observed in the classification of mild (15% RACAP vs. 31.1% DBCAPS) and moderate (46.9% RACAP vs. 30.7% DBCAPS) AP.
• DBCAPS identified a new category of critical AP in 0.7% of patients, which was not explicitly defined by RACAP.
• RACAP identified more cases with complications (313) compared to DBCAPS (153), with distinct patterns of local complications reported by each system.

Conclusions:

• Both RACAP and DBCAPS utilize organ failure and complications for severity determination, but differ in refining local complications and severity definitions.
• DBCAPS introduces 'critical AP,' offering a potentially more granular classification of severe disease.
• A combined approach integrating the strengths of both RACAP and DBCAPS may be beneficial for precision medicine in AP management and research.