An emergency case of small bowel obstruction due to multiple gallstones in a limited resource setting

INTRODUCTION: Gallstone ileus is an uncommon intestinal obstruction caused by impaction of gallstones passing through the cholecysto-intestinal fistula. Diagnosis of gallstone ileus remains a major challenge because the symptoms and signs are unspecific and the recommended laboratory examinations are not always available particularly in limited health resource settings including in Indonesia. In addition, treatment of choice is still debatable involving enterolithotomy only with or without additional cholecystectomy and fistula repair in one or two-stage surgery. PRESENTED CASE: A 49 years old overweight Javanese woman presented in the emergency room with nausea, frequent vomiting, abdominal distension, and absence of defecation in the past 3 days before admission. Previous abdominal surgery and history of biliary disease were not reported during anamnesis. Plain abdominal X-rays revealed small bowel obstruction. Upon emergency laparotomy, the mechanical bowel obstruction was caused by multiple gallstones in the terminal ileum. DISCUSSION: Although the incidence of gallstone ileus is 5% of all intestinal obstruction cases, the mortality rate is around 25%. Diagnosis is often difficult and half of the cases are diagnosed intraoperatively. Surgical management is still controversial involving enterolithotomy with or without cholecystectomy and fistula repair in one or two stage procedure. CONCLUSIONS: Although the incidence is rare, elaborating thorough anamnesis, physical and basic laboratory examinations in gastrointestinal obstruction should consider gallstone ileus as a potential differential diagnosis particularly in a patient with any risk factors of the biliary disease. Enterolithotomy only might be acceptable for any emergency case due to the equivalent clinical outcomes and relatively low complications.