Validation of the AAST EGS grading system for perforated peptic ulcer disease

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Abstract

Introduction:

Perforated peptic ulcer disease (PPUD) including both duodenl and gastric ulcers is a severe disease and outcomes are influenced by comorbidities and physiology. We validated the AAST EGS grading system at two diverse centers (Mayo Clinic, USA and Pietermaritzburg, South Africa).

Methods:

Dual-center review of historic data (2010–2016) of adults with PPUD was performed. Preoperative, procedural, and postoperative data were abstracted. ASA, Boey, PULP and AAST EGS grades were generated. Comparative, multivariable, and pairwise analyses were performed.

Results:

There were 306 patients, 42% female with a mean (±SD) age of 56 ±20 years. Overall, the patints were categorized into the following AAST EGS grades: I (30, 10%), II (38, 12%), III (104, 34%), IV (76, 2e%), V (58, 18.9%). Initial management included: midline laparotomy (51%, n=157), laparoscopy (18%, n=58), laparoscopy converted to laparotomy (1%, n=3), and endoscopy (30%, n=88). Duration of stay increased with AAST EGS grade. In United States cohort, factors predictive for 30-day mortality included AAST EGS grade and patient comorbidity status. The AAST EGS grade was comparable to other scoring systems (Boey, PULP, and ASA).

Conclusions:

Differences exist between centers for management of PPUD and their outcomes; however, the AAST EGS grade can be utilized to stratify thedisease severity of the patient and this demonstrates initial construct validity in a United States but not in a South African population.

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