Appendicitis is a Severe Disease in Elderly Patients: A Twenty-Year Audit.

Background and Objectives Life expectancy has increased substantially. Elderly patients currently represent a large part of patients requiring emergency abdominal surgery. The aim of this study was to evaluate the postoperative outcomes of elderly patients who underwent appendectomy in a single French tertiary center. Methods We retrospectively reviewed the medical records of all patients who underwent appendectomy for acute appendicitis between January 1, 1994 and December 31, 2014. We used the French threshold of ≥ 75 y-old to define elderly patients. Hence, elderly patients who underwent appendectomy were compared to the younger group. Results During the study period, 2,060 consecutive patients underwent appendectomy for acute appendicitis. Laparoscopic appendectomy was performed in 52% of cases. Similar rates of laparoscopic approach were recorded in both groups, but conversion to open surgery was six times more frequent in elderly patients (17% vs. 3%; P < .0001). A higher incidence of complicated appendicitis was observed in the elderly group (63% vs. 13.6%; P < .0001). Complications occurred more frequently in the elderly group (46% vs. 8%; P < .0001). 30-d mortality was 0.15% for patients < 75 y and 6.15% for elderly patients (P < .0001). Unsuspected presence of an appendiceal neoplasm was higher (7.7%) in the elderly population. Conclusion This study highlights the fact that appendicitis in the elderly is associated with a higher rate of complicated appendicitis, morbidity, and mortality.