[All cause 30-day mortality and perioperative mortality rate, associated with appendectomy in Sweden? A SPOR-based...

Appendectomy is the most common acute abdominal surgery worldwide, with an incidence of 96.5-100 cases per 100,000 people. Mortality rates are very low, ranging from 0.09% to 0.24% in countries with modern healthcare. In Sweden, no recent studies have reported mortality rates following appendectomy. The primary aim of this study was to investigate changes in 30-day mortality following appendectomy between 2017 and 2021. A secondary aim was to adjust for age and ASA classification when analyzing 30-day mortality. Data for this study was obtained from the national Swedish prioperative quality registry, SPOR. The study population included 38,572 appendectomy cases, with inclusion criteria requiring patients to be over 18 years old and have undergone surgery between 2017 and 2021. The overall mortality rate was 0.07%. with 26 deaths in 38,572 cases, with no statistically significant difference in 30-day mortality across the study period. No patient deceased on the day of surgery, and 9 patients deceased within 1 week. Early mortality did not change during the period studied. The 90-day mortality, total 47 patients, varied (p.