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

Stefan Spörri, Brent Bell, Roger Yandell, Massoud Motamedi

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


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. Conclusion: 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.

Original languageEnglish (US)
Pages (from-to)379-385
Number of pages7
JournalLasers in Surgery and Medicine
Issue number4
StatePublished - 2001


  • Coagulation
  • Contraception
  • Diffusing tip
  • Endotubal
  • Fallopian tube
  • Female

ASJC Scopus subject areas

  • Surgery
  • Dermatology


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