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Clinical application of a new disposable lithotripter: a prospective multicenter study.

Abstract：

BACKGROUND:Mechanical lithotripsy has become a well-accepted method of bile duct stone fragmentation and removal. The Olympus lithotripter (Olympus American, Melville, NY) is the standard reusable lithotripter at the institutions that participated in this study. A disposable device with a preassembled pistol grip may perform equally well and facilitate operation. METHODS:Twenty patients with bile duct stones were evaluated as part of a multicenter prospective study. Data were obtained regarding stone size and number, bile duct diameter, and configuration, ease of cannulation, basket function, stone capture and crushing success, and complications. RESULTS:The maximum stone size averaged 16.5 +/- 1.2 mm (range 10 to 30 mm). Sixteen patients had multiple stones (median 5, range 2 to 12). The mean bile duct diameter was 20.5 +/- 1.5 mm (range 12 to 38 mm). Cannulation was successful in all within 5 attempts. Basket deployment failed in 1 patient because of stone size and the basket was misshapen in 14. Bile duct clearance was complete in 16 subjects (80%), incomplete in 2 patients, and failed in 2 patients. Abnormal duct configuration (sigmoid, stricture) was noted in 2 of 4 patients with failed capture and 7 of 16 patients with successful clearance. No statistically significant difference was observed between the bile duct diameter, maximum stone size, number of stones, and successful clearance. CONCLUSION:The disposable lithotripter is easy to use and, compared with the published results for the reusable lithotripter, performs almost as well.

journal_name

Gastrointest Endosc

journal_title

Gastrointestinal endoscopy

authors

Sorbi D,Van Os EC,Aberger FJ,Derfus GA,Erickson R,Meier P,Nelson D,Nelson P,Shaw M,Gostout CJ

doi

10.1016/s0016-5107(99)70488-8

subject

Has Abstract

pub_date

1999-02-01 00:00:00

pages

210-3

issue

2

eissn

0016-5107

issn

1097-6779

pii

S0016-5107(99)70488-8

journal_volume

49

pub_type

临床试验,杂志文章,多中心研究

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