title: New precut sphincterotomy for endoscopic retrograde cholangiopancreatography in difficult biliary duct cannulation.
abstract: OBJECTIVE
  To retrospectively investigate the effect and safety of various new type precut sphincterotomy techniques (VNTPST) in endoscopic retrograde cholangiopancreato-graphy (ERCP) due to difficult biliary duct cannulation (DBC).
  
  
  METHODS
  A plough-like pull-type sphincterotome (PLPTS) or improved short nose sphincterotome or improved needle knife was applied. VNTPST was carried out in 30 of 280 patients, whose biliary tract could not be exposed well or deep cannulation was difficult to perform during ERCP with traditional methods. Patients were followed up for short-term complications and the therapeutic effect of VNTPS was observed and compared with that of traditional endoscopic sphincterotomy (EST).
  
  
  RESULTS
  A total 280 patients underwent ERCP, of which 3 failed in operation because of pathological features in stomch or duodenum, 247 successfully underwent traditional ERCP (89.1%, 247/277), 30 failed (10.8%, 30/277). VNTPS technique succeeded in 24 (80%, 24/30) of 30 cases. The successful rate of deep biliary duct cannulation increased 8.6% (24/277), the total cannulation successful rate following precut was 97.7%. There was a significant difference between the two groups (97.7% vs 89.1%, c2 = 17.1, P < 0.01). The incidence of complications was 9.3% (26/277) for traditional ERCP group and 13.3% (4/30) for VNTPS technique group. Guideline tip was broken in pancreatic duct (KPDGP) of one patient, and there was no pancreatitis, slight or moderate bleeding postoperatively occurred in 2 patients, 1 patient had bleeding during operation (PDWN). There were no differences between VNTPS technique group and traditional ERCP (TRERCP) group (13.3% vs 9.3%, c2 = 0.478, P > 0.05).
  
  
  CONCLUSIONS
  VNTPS procedure and Deng's precut are highly effective methods to get biliary access during ERCP with DBC. With skillful techniques, it can increase the successful rate for deep cannulation of biliary duct and decrease complications. VNTPS technique, especially Deng's precut is as effective and safe as EST. This technique can be well performed in hospitals without particular equipments.
authors: Department of Gastroenterology, Clinical Medical College of Yangzhou University, No.98 Nangtong West Road, Yangzhou 225001, Jiangsu Province, China. dengdenghao@medmail.com.cn
authors: Deng-Hao
authors: DH
authors: Deng
authors: Hong-Mei
authors: HM
authors: Zuo
authors: Jia-Feng
authors: JF
authors: Wang
authors: Zhi-E
authors: ZE
authors: Gu
authors: Hong
authors: H
authors: Chen
authors: Yuan
authors: Y
authors: Luo
authors: Ming
authors: M
authors: Chen
authors: Wen-Nuo
authors: WN
authors: Huang
authors: Lu
authors: L
authors: Wang
authors: Wei
authors: W
authors: Lu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001652:Bile Ducts / Q000601:surgery*; D002404:Catheterization / Q000009:adverse effects / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects / Q000379:methods*; D003137:Common Bile Duct Diseases / Q000601:surgery; D003138:Common Bile Duct Neoplasms / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016717:Sphincterotomy, Endoscopic / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome
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