A little goes a long way: A comparison of enterolithotomy versus single-stage cholecystectomy in the management of gallstone ileus

INTRODUCTION Gallstone ileus is an infrequent complication of cholelithiasis with no specific guidelines for its management. This study aims to compare the outcomes of patients with gallstone ileus managed with both enterolithotomy with cholecystectomy (EL-CCY) versus those managed with enterolithotomy (EL) only. METHODS In this retrospective analysis of 2011-2017 Nationwide Readmissions Database, all patients with an index admission diagnosis of gallstone ileus were included. Patients were stratified based on the type of intervention received for gallstone ileus into those who underwent EL-CCY and those who underwent EL alone and compared. Primary outcomes were in-hospital complications (surgical site infections, sepsis, pneumonia, cardiac arrest, deep vein thrombosis, intestinal obstruction) and mortality. Secondary outcomes were hospital length of stay, hospital costs, and readmissions rate and cause of readmissions. Multivariable logistic regression analysis was performed. RESULTS A total of 1,960 patients were identified. The mean age was 67 years and 67% were female. Two hundred eighty-nine patients (14.7%) were managed with EL-CCY, whereas 1,671 patients (85.3%) underwent EL only. Overall, the readmission rate was 4.8%, whereas mortality was 4.2%. There was no significant difference between groups in terms of index-admission complications (24.8% vs. 21.7%, p = 0.415), mortality (6.2% vs. 3.9%, p = 0.068), rates of readmission (3.5% vs. 5.1%, p = 0.22), and cause of readmission (p > 0.05). Enterolithotomy and cholecystectomy group had significantly longer hospital length of stay (10 vs. 8 days, p < 0.001) and median hospital costs ($70,959 vs. $52,147, p < 0.001). On multivariable logistic regression analysis, female sex was a predictor of undergoing EL-CCY, whereas increasing age and higher grade of all-patient redefined diagnosis-related groups risk of mortality were independently associated with lower odds of undergoing EL-CCY. CONCLUSION Our findings suggest no difference between EL compared with EL-CCY in terms of complications, readmissions, and mortality. However, patients managed with EL-CCY had a longer hospital stay and higher hospital costs compared with EL. Further prospective studies are needed to validate these findings and develop management protocols for gallstone ileus.