✦ LIBER ✦

Comparison of holmium and flashlamp pumped dye lasers for use in lithotripsy of biliary calculi

✍ Scribed by Mitchell L. Spindel; Ali Moslem; Kuldip S. Bhatia; Bahaeddin Jassemnejad; Kenneth E. Bartels; Richard C. Powell; Ciaran M. O'Hare; Tim Tytle

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 728 KB
Volume: 12
Category: Article
ISSN: 0196-8092
DOI: 10.1002/lsm.1900120505

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The characteristics of laser lithotripsy of biliary calculi are compared for a flashlamp pumped dye laser (λ = 640 nm) and a Cr: Tm:Ho‐YAG laser (λ = 2.1 μm). Data on fragmentation efficiency with respect to laser power and pulse repetition rate are presented for different types of stones. It is shown that both lasers can produce effective stone fragmentation. The laser power required for efficient fragmentation characteristics is significantly less for the visible wavelength laser. However, the problems associated with damage to the fiber tips of the delivery system during operation were found to be less with the near infrared wavelength. The laser power for efficient fragmentation with the dye laser varies significantly for different types of stones while the power for efficient fragmentation with the hohnium laser is the same for all stones. © 1992 Wiley‐Liss, Inc.

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