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  • Title: Evaluation of operative cholangiography in 2043 patients undergoing laparoscopic cholecystectomy: a case for the selective operative cholangiogram.
    Author: Snow LL, Weinstein LS, Hannon JK, Lane DR.
    Journal: Surg Endosc; 2001 Jan; 15(1):14-20. PubMed ID: 11178754.
    Abstract:
    BACKGROUND: There is still some controversy over whether to use laparoscopic operative cholangiograms routinely (RLOC) or selectively (SLOC). Due to their high cost as well as other issues, in March 1997 we converted from RLOC to SLOC. The purpose of this study was to validate that decision. METHODS: The results of 2043 laparoscopic cholecystectomies (LC) were compiled and analyzed. The results of RLOC in 1556 patients undergoing LC from March 1990 through February 1997 were compared to the results of SLOC in 16 patients undergoing LC from March 1989 through February 1990 and 471 patients undergoing LC from March 1997 through December 1998. The literature was reviewed and data were compiled. Reasons that are typically given for operative cholangiograms (OC) were collected and scrutinized. Finally, cost surveys for RLOC and related procedures were obtained. RESULTS: Overall, laparoscopic operative cholangiogram (LOC) was attempted in 1661 patients and was successful in 1656 cases (99.7%). Bile duct stones (BDS) were evident in 166 patients. Laparoscopic bile duct exploration (LBDE) was attempted in all cases. None were referred for preoperative endoscopic retrograde cholangiopancreatography (ERCP). In the RLOC group, evidence of BDS was observed in 136 patients (9%). Forty-two were unsuspected (2.8%) and five were false positive (0.3%). In a collection of other RLOC studies, the average rate of unsuspected BDS was 2.9%, while the average rate of false positive cholangiograms was 1.6%. In the SLOC group, LOC was indicated in 139 of 487 patients (28.6%). None of the patients who did not have a LOC developed symptomatic residual BDS in < or = 11 years of follow-up. In a large collection of other SLOC studies, the rate of symptomatic residual BDS was 0.3%. A cost survey in February 1997 revealed that the average minimum global charge (MGC) for an OC was $1283.21; for a transcystic duct LBDE it was $1055.10, and for a transcholedochal LBDE it was $3263.61 [corrected]. The MGC for an ERCP with papillotomy was $4303.00. Thus, to avoid one patient with symptomatic residual BDS, 354 unnecessary procedures (333 RLOC, 18 LBDE, and three postoperative ERCP) costing $473,927.52 would be performed. There were no false negatives, bile duct injuries, or other complications attributable to RLOC or SLOC. CONCLUSIONS: The increased morbidity and cost of RLOC to avoid symptomatic residual BDS is not justified. All other reasons given for RLOC are either flawed or indicate that the procedure can be safely employed selectively. SLOC is an effective method of verifying suspected BDS and is safer and less expensive than RLOC.
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