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Preoperative Endoscopic Nasobiliary Drainage in 164 Consecutive Patients With Suspected Perihilar Cholangiocarcinoma: A Retrospective Study of Efficacy and Risk Factors Related to Complications.
MedLine Citation:
PMID:  22895398     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE:: To assess the clinical benefits of preoperative endoscopic nasobiliary drainage (ENBD) in patients with perihilar cholangiocarcinoma. BACKGROUND:: The advantages of ENBD have been previously reported. However, no studies to date have examined a large number of patients, including those with Bismuth-Corlette (B-C) type III to IV tumors. In addition, sufficient data on the risk factors associated with ENBD complications are not available. METHODS:: This study involved 164 consecutive patients with suspected perihilar cholangiocarcinoma (128 patients with B-C type III-IV tumors) who had undergone unilateral ENBD between January 2007 and December 2010. The success and efficacy of this procedure and the risk factors for post-ENBD cholangitis and pancreatitis were retrospectively evaluated. RESULTS:: The ENBD procedure was successful in 153 (93.3%) of the 164 patients. Of these 164 patients, 65 had serum total bilirubin (TB) levels of 2.0 mg/dL or more before the drainage. The first unilateral ENBD was successfully performed in 60 of the 65 patients, and the TB level decreased to less than 2.0 mg/dL after ENBD in 50 of these 60 patients (83.3%). The significant predictive factors for ENBD efficacy included the pre-ENBD TB level (P = 0.032; 95% confidence interval [CI], 1.01-1.23) and post-ENBD cholangitis (P = 0.012; 95% CI, 1.61-43.2). Post-ENBD cholangitis occurred in 47 (28.8%) of the 163 patients, and a previous endoscopic sphincterotomy (EST) was found to be a significant risk factor for post-ENBD cholangitis (P = 0.008; 95% CI, 1.30-5.46). Post-ENBD pancreatitis occurred in 33 (20.1%) of the 164 patients (26 grade 1 patients, 4 grade 2 patients, and 3 grade 3 patients). The significant risk factors included undergoing pancreatography (P < 0.001; 95% CI, 2.44-31.1) and the absence of previous EBS or ENBD (P < 0.001; 95% CI, 3.03-29.2). CONCLUSIONS:: Unilateral ENBD of the future remnant lobe(s) exhibited a high success rate, suggesting that it is an effective and suitable preoperative drainage method for perihilar cholangiocarcinoma even in patients with B-C type III to IV tumors. To reduce the postprocedural complications, ENBD should be performed without EST or pancreatography.
Authors:
Hiroki Kawashima; Akihiro Itoh; Eizaburo Ohno; Yuya Itoh; Tomoki Ebata; Masato Nagino; Hidemi Goto; Yoshiki Hirooka
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-14
Journal Detail:
Title:  Annals of surgery     Volume:  -     ISSN:  1528-1140     ISO Abbreviation:  Ann. Surg.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372354     Medline TA:  Ann Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
*Department of Gastroenterology and Hepatology Nagoya University Graduate School of Medicine †Department of Endoscopy, Nagoya University Hospital ‡Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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