28.05 Surgical Outcomes of Cholecystectomy Following Cholecystostomy for Acute Calculous Cholecystitis

H. Mazeh1, I. Mizrahi1, J. Yuval1, G. Almogy1, M. Bala1, N. Abu Ata1, E. Kuchuk1, J. Rachmuth1, A. Nissan1, A. Eid1  1Hadassah-Hebrew University Medical Center,Surgery,Jerusalem, , Israel

Introduction:
The role of percutaneous cholecystostomy (PC) in the management of patients with acute calculous cholecystitis (ACC) remains controversial, and data is limited to small-scale studies. The aim of the present study is to report peri-operative outcomes of a large cohort of patients, managed with PC prior to their cholecystectomy.

Methods:
The hospital Electronic Medical Record (EMR) was searched for all patients underwent delayed cholecystectomy due to ACC, between 2003- 2012. All patients managed by PC prior to surgery were identified. Patient EMR were reviewed to record demographics, clinical presentation at index admission, and during interval period, and operative and post-operative data. Patients who underwent delayed cholecystectomy following ACC without PC during the study period, served as control group.

Results:
During the study period 640 patients underwent delayed laparoscopic cholecystectomy (LC) following ACC at our institution. Of the entire cohort, 163 (25%) patients underwent delayed LC with prior PC insertion and 477 (75%) patients underwent interval LC with no prior PC intervention. Patients in the PC group were older (64±1 vs. 48±0.8, p<0.001), had a higher ASA score (2.02 vs. 1.78, p=0.01), and had significantly more co-morbid conditions (p<0.001). Combined ACC with cholangitis at the index admission was more commonly observed in the PC group (7% vs. 1%, p<0.001). The accumulated length of stay (LOS) for all admissions was significantly longer in the PC group (16.2±0.4 days, vs. 9.7±0.1 days, p<0.001). During the time interval between ACC and LC there were  12% of accidental tube ejection, 4% of peri-tubal leakage, and 8.5% of patients requiring tube re-insertion. Emergency room referrals (30% vs. 8%, p<0.001), as well as re-admission rates (33% vs.12%, p<0.001), within 90 days post-surgery, were higher in the PC group. Laparoscopic to open conversion rate was higher in the PC group (11% vs. 3.7%, p=0.001) and operative time was significantly longer (142±4 minutes vs. 107±4 minutes, p<0.001). Patients in the PC group presented with a higher rate of biliary tract injury (9.2% vs. 2%, p<0.001) and surgical site infections (SSI), both superficial (4.9% vs. 1%, p=0.004), and deep (7.3% vs. 2.9%, p=0.04). Comorbidity related complications were similar between the groups. 

Conclusion:
Managing patients with ACC using PC is associated with longer LOS, higher rate of readmissions, and most importantly, higher conversion rate, biliary tract injuries, and SSI.