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Endoscopy 1986; 18(3): 92-94
DOI: 10.1055/s-2007-1018339
© Georg Thieme Verlag KG Stuttgart · New York
DOI: 10.1055/s-2007-1018339
Laser Lithotripsy of Gallstone by Means of a Pulsed Neodymium-YAG Laser - In Vitro and Animal Experiments
Further Information
Publication History
Publication Date:
17 March 2008 (online)
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Summary
Using a flashlamp pulsed Nd: YAG laser it is possible to destroy gallstones within a few seconds (median: 4 sec for stones < 1.5 cc; 9.5 sec > 1.5 cc). In in vitro and animal studies it was shown that the median energy needed for stone destruction varies between 32 Joule for stones < 1.5 cc and 80 Joules for stones > 1.5 cc. A 0.2 mm thick, flexible glass fibre makes possible retrograde laser lithotripsy by conventional endoscopes. Using a suitable technique the danger of thermal damage to tissue is small.
Key words:
Choledocholithiasis - Lithotripsy - Laser - Pulsed laser - Nd:YAG laser