✦ LIBER ✦

Diode laser assisted transcervical tubal sterilization: An in vivo study in rabbits

✍ Scribed by Stefan Spörri; Brent Bell; Roger Yandell; Massoud Motamedi

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 765 KB
Volume: 29
Category: Article
ISSN: 0196-8092
DOI: 10.1002/lsm.1132

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✦ Synopsis

Abstract

Background and Objective

To investigate the sterilization effectiveness of endoluminal tubal photocoagulation on tubal lumen obliteration.

Study Design/Materials and Methods

Twenty‐four female rabbits were subjected to laparotomy and hysterotomy. Endoluminal tubal photocoagulation was induced over a length of 3 cm in the proximal, extramural fallopian tube by using a cylindrical diffusing tip that emitted diode laser radiation at 805 and 980 nm wavelengths. Tubal patency was evaluated by observing patterns of injected methylene blue and/or breeding success rates.

Results

Postoperative recovery was uneventful in all animals. Evidence of occlusion of the tubal lumen included a negative methylene blue test in all 12 tubes treated (tubal occlusion rate 100%) and failure to conceive in 17 of 18 uteri (contraception rate 94.5%). Although identical power settings were used, distinctly lower tubal surface temperatures (about 10°C) were obtained with the 805 nm diode laser as compared to the 980 nm diode laser.

Conclusions

The described endoluminal tubal photocoagulation method using a diode laser emitting longer wavelengths (e.g., 980 nm) is suitable for safe and effective sterilization in rabbits and has potential as a new transcervical tubal sterilization method for humans. Lasers Surg. Med. 29:379–385, 2001. © 2001 Wiley‐Liss, Inc.

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