Efficacy of the neodymium: YAG laser in vasovasostomy: A preliminary communication

Weiner, Perry R.; Greene, Charlotte H.; Debias, Domenic A.; Finkelstein, Larry

doi:10.1002/lsm.1900060610

Cited by 12 publications

(9 citation statements)

References 3 publications

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“…As in vascular anastomoses [1], laser welding takes considerably less time and is technically easier than conventional suturing techniques. These findings are confirmed for vas anastomoses by others [4,11],…”

Section: Discussionsupporting

confidence: 78%

“…How ever, the muscular wall in a vas is much thicker than in a vessel and the difference in physical properties of both laser systems could explain the varying results: 'The Nd:YAG laser results in strong scattering of the incident beam and hence more diffuse tissue heating' [11]. This might result in a more pronounced mucosal edema, sub sequent obliteration of the lumen and finally formation of sperm granulomas with definite luminal obstruction.…”

Section: Discussionmentioning

confidence: 99%

“…Jarow et al [4] used a carbon dioxide laser and observed a higher rate of sperm granulomas in their LAVs. Weiner et al [11] applied an Nd:YAG laser in 3 dogs and found no radiographic evidence of stenosis or leakage at the operative site. Rosemberg et al [9] and Lynne et al [5], found no sperm granulomas when they used a CO2 laser in dogs.…”

Section: Discussionmentioning

confidence: 99%

“…The laser greatly facilitated the anasto moses of small structures. Laser welding for vas anasto mosis in rats was first described by Lynne et al [5], who used a C 0 2 laser, and later by others in rats [2,4,5], rabbits [7], dogs [9,11] and man [4], Either CO2 or Nd:YAG lasers were applied. Our previous comparative studies have shown that both laser types seem to be equally suitable for small vascular anastomoses [1], As 1 Contains part of a dissertation by N. Jansen.…”

Section: Introductionmentioning

confidence: 99%

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Laser-Assisted Vasovasostomy in the Rat

Burger¹,

Gerharz²,

Jansen³

et al. 1988

Urol Int

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A comparative study was undertaken to investigate the Nd:YAG and CO₂ laser systems for laser-assisted vasovasostomies (LAVs). In 32 rats 64 vasovasostomies were performed, either conventionally sutured (CSV) or laser-welded (LAV-CO₂ and LAV-Nd:YAG). Postoperative investigations included patency tests, gross examination, light and electron microscopy. The highest rate of sperm granulomas (50%) and the lowest patency rate (50%) was seen in the LAV-Nd:YAG group. LAV-CO₂ showed the lowest rate of sperm granulomas (12.5%) and had a patency rate (82%) which was comparable to that of CSV (88%). Laser-assisted vas anastomosis is time saving and technically easy to perform. Contrary to microvascular anastomoses, where both laser types offer the same results, vas anastomosis is better done using a CO₂ laser system.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laser-Assisted Vasovasostomy in the Rat

Burger¹,

Gerharz²,

Jansen³

et al. 1988

Urol Int

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“…With this in mind, several authors have performed vasovasostomy with the carbon dioxide laser and Neodymium:Yag laser with excellent results [1,4,71. These authors, however, performed vasovasostomy immediately following vasectomy, which is in contradistinction to clinical practice.…”

Section: Discussionmentioning

confidence: 99%

Carbon dioxide milliwatt laser in the vasovasostomy of vas deferens in dogs: Part I

et al. 1990

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This is the first arm of a two prong study conducted to learn two different aspects of vasovasostomy in dog vas deferens using the milliwatt carbon dioxide laser. The first study involved the evaluation of patency without collection of sperm. Six dogs were evaluated and all underwent vasectomy and subsequently had vasovasostomies performed between 4 and 12 weeks utilizing two approximating sutures and welding with the milliwatt carbon dioxide laser. Metal clips were used for both X-ray analysis and localization of the vasovasostomy site. In this investigation a vasogram was performed. Dogs were sacrificed at 4, 6, and 8 weeks postvasovasostomy. The vasovasostomy specimens were studied with electron microscopy and histological evaluation. The vasovasostomy was completed in under 120 minutes using this laser-assisted technique and was found to be a viable and promising technique for vasovasostomy.

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Epilation of hair‐Bearing urethral grafts utilizing the neodymium: YAG surgical laser

Finkelstein

Blatstein

1990

Lasers Surg Med

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Non-hair-bearing skin should be utilized when grafting is necessary in carrying out urethroplasty for stricture or hypospadius repair. Occasionally this is not possible, or hair-bearing skin is used inadvertently. Traditionally electrocoagulation has been the method used for epilation when intraluminal hair has become a problem, such as interfering with flow, being foci for recurring urinary tract infection, or acting as a nidus for calculus formation. Electrocautery is also used at the time of grafting in an attempt to prevent the growth of hair when hair-bearing skin is utilized. Unfortunately, because of lack of penetration, the hair follicles are not destroyed and the epilating procedure fails or is only partially successful. The neodymium: YAG (Nd:YAG) surgical laser can photocoagulate tissue to a depth up to 5.0 mm and thus has the ability to destroy hair follicles. We report three cases presenting with clinical problems directly related to hair-bearing urethral grafts successfully treated by Nd:YAG epilation.

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Efficacy of the neodymium: YAG laser in vasovasostomy: A preliminary communication

Cited by 12 publications

References 3 publications

Laser-Assisted Vasovasostomy in the Rat

Laser-Assisted Vasovasostomy in the Rat

Carbon dioxide milliwatt laser in the vasovasostomy of vas deferens in dogs: Part I

Epilation of hair‐Bearing urethral grafts utilizing the neodymium: YAG surgical laser

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