Gallstone ileus.
A retrospective analysis of 74 patients with gallstone ileus detected during the period between 1975 and 1987 was performed at the Surgical Department. The group comprised 55 females and 19 males, with a mean age of 64.8 years. Previous biliary symptoms had been observed in 76% of the cases and in 58% there had been concomitant disease. The main duration of symptoms previous to admission was 3.4 days. In 85% of the cases complementary diagnostic procedures were performed. The triad of air in the biliary tract, air-fluid levels and ectopic stone was found in only 9.5% of the cases. The preoperative diagnosis of gallstone ileus was made in 31% of the patients. The preoperative period was 2.2 days. The main surgical procedure was enterolithotomy in 92% of the cases, the site of impaction being the terminal ileum in 65%. Only in 1 case was simultaneous biliary tract surgery and enterolithotomy performed. Overall, the 30-day postoperative mortality rate was 13.5%, with intra-abdominal sepsis as the main cause of death. Sixteen patients were submitted to biliary surgery 2 to 6 months later, and no deaths occurred.