Purpose: Perforated diverticulitis (PD) remains a serious acute abdominal condition. The aim of this study was to evaluate indications for emergency surgery in patients ≥80 years of age with PD. Method: Twenty patients ≥80 years of age and 28 younger patients who underwent emergency surgery for PD from January 2002 to December 2011 were studied. The demographics and postoperative outcomes were compared. Results: The preoperative characteristics, mortality rate, and postoperative complications were similar between these two groups. All seven patients ≥80 years of age with an American Society of Anesthesiologists (ASA) score of 2 survived after surgery. All five patients with a Mannheim peritonitis index (MPI) score of ≥26 in the elderly group died after surgery. There were significant associations between the mortality, the MPI and ASA score in patients ≥80 years of age. Conclusions: Best supportive care may be an alternative for patients ≥80 years of age with PD, an ASA score of ≥3 or an MPI score of ≥26.
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