Percutaneous Transcholecystic Approach for an Experiement of Biliary Stent Placement: An Experimental Study in Dogs.
10.3348/jkrs.2002.46.6.543
- Author:
Tae Seok SEO
1
;
Ho Young SONG
;
Jin Oh LIM
;
Gi Young KO
;
Kyu Bo SUNG
;
Tae Hyung KIM
;
Ho Jung LEE
Author Information
1. Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Korea. hysong@www.amc.seoul.kr
- Publication Type:Original Article
- Keywords:
Bile ducts;
Stents and prostheses;
Interventional procedures;
Animals
- MeSH:
Abdominal Wall;
Animals;
Bile;
Bile Ducts;
Catheters;
Cholangiography;
Common Bile Duct;
Dogs*;
Drainage;
Elapidae;
Follow-Up Studies;
Gallbladder;
Granulation Tissue;
Needles;
Peritoneal Cavity;
Peritonitis;
Stents*;
Ultrasonography
- From:Journal of the Korean Radiological Society
2002;46(6):543-549
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To determine, in an experimental study of biliary stent placement, the usefulness and safety of the percutaneous transcholecystic approach and the patency of a newly designed biliary stent. MATERIALS AND METHODS: A stent made of 0.15-mm-thick nitinol wire, and 10 mm in diameter and 2 cm in length, was loaded in an introducer with an 8-F outer diameter. The gallbladders of seven mongrel dogs were punctured with a 16-G angiocath needle under sonographic guidance, and cholangiography was performed. After anchoring the anterior wall of the gallbladder to the abdominal wall using a T-fastener, the gallbladder body was punctured again under fluoroscopic guidance. The cystic and common bile ducts were selected using a 0.035-inch guide wire and a cobra catheter, and the stent was placed in the common bile duct. Post-stenting cholangiography was undertaken, and an 8.5-F drainage tube was inserted in the gallbladder. Two dogs were followed-up and sacrificed at 2, 4, and 8 weeks after stent placement, respectively, and the other expired 2 days after stent placement. Follow-up cholangiograms were obtained before aninmal was sacrificed, and a pathologic examination was performed. RESULTS: Stent placement was technically successful in all cases. One dog expired 2 days after placement because of bile peritonitis due to migration of the drainage tube into the peritoneal cavity, but the other six remained healthy during the follow-up period. Cholangiography performed before the sacrifice of each dog showed that the stents were patent. Pathologic examination revealed the proliferation of granulation tissue at 2 weeks, and complete endothelialization over the stents by granulation tissue at 8 weeks. CONCLUSION: Percutaneous transcholecystic biliary stent placement appears to be safe, easy and useful. After placement, the stent was patent during the follow-up period.
