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Vasovasostomy in the murine vas deferens: Comparison of the Nd:YAG laser at 1.06 microns and 1.318 microns to the CO 2 laser
Author(s) -
Lowe Bruce A.,
Poage Matthew D.
Publication year - 1988
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900080407
Subject(s) - vas deferens , vasovasostomy , laser , anastomosis , medicine , neodymium , laser coagulation , surgery , materials science , optics , anatomy , population , physics , environmental health , family planning , research methodology , visual acuity
A comparison is made of laser anastomoses of the murine vas deferens at different energies with the neodymium (Nd):YAG laser at 1.06 μm and 1.318 μm and with the CO 2 laser. A total of 28 welds were performed with a free‐hand technique employing a 600‐μm silicon fiber with the Nd:YAG and a hand piece with a 500‐μm spot size for the CO 2 . After 6 weeks, all animals were sacrificed and the vasa evaluated for patency. Fifteen out of 28 controls repaired with microsurgical techniques were found to be patent; 4/10 vasa were patent with use of the Nd:YAG at 1.318 μm at laser energies of 300 mW and 500 mW. At 1.06 μm, only 1/4 anastomoses was patent at a power setting of 1 W. None of the anastomoses performed with the CO 2 laser was patent. Histologic study revealed intense fibrosis in all the lasered vasa, with sperm granuloma formation associated with most anastomoses. Although this is a preliminary study, it appears that the Nd:YAG laser at 1.318 μm and a power setting of 300–500 mW provides patency rates superior to the Nd:YAG at 1.06 μm and to the CO 2 lasers and is equivalent to standard microsurgical techniques in the murine vas deferens.