One Thousand Vasectomies

Barnes, Marian N.; Blandy, J. P.; England, H. R.; Gunn, George R.; Howard, G; Law, Barbara; Mason, Bridgett; Medawar, J.; Reynolds, Cecil E.; Shearer, R. J.; Singh, Manish Kumar; Stanley-Roose, Dorothy G.

doi:10.1136/bmj.4.5886.216

Cited by 46 publications

(16 citation statements)

References 16 publications

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“…Epididymitis is reported in up to 6% of vasectomized patients: 0.3% (Barnes et al, 1973), 1.5% (Tailly et al, 1984), 1.9% (Alderman, 1991), 3% (Gould, 1974), 3.2% (Manson, 1983), 4.9% (Schmidt, 1966), 6% (Moss, 1992). It is rarely due to infection but results from cngorgcment caused by continued entry of spermatozoa into the obstructed epididymal duct (Alderman, 1991;Schmidt, 1991).…”

Section: Epi1)iiiymal Granulomas and Iiistensionmentioning

confidence: 96%

Vasectomy review: Sequelae in the human epididymis and ductus deferens

McDonald

1996

Clin. Anat.

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Section: Epi1)iiiymal Granulomas and Iiistensionmentioning

confidence: 96%

Vasectomy review: Sequelae in the human epididymis and ductus deferens

McDonald

1996

Clin. Anat.

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“…The aetiology of this rare event is unknown but it may be associated with sperm granulomas. Histological examination of the excised tissue showed the formation of one or more epithelialized channels through scar tissue [1,5]. It is important to consider this rare event and warn the patient of the possibility when counselling him and obtaining consent [3].…”

Section: Discussionmentioning

confidence: 99%

“…This procedure, originally started in the UK by the Simon Population Trust, has now become an increasingly accepted form of birth control [1]. Of all the methods of contraception, vasectomy is the safest, easiest, cheapest, most effective and most reliable.…”

Section: Introductionmentioning

confidence: 99%

Semen analysis after vasectomy: when and how many?

2000

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Objective To assess patient compliance for semen analysis after vasectomy, and to determine the timing and number of semen analyses required to con®rm sterility. Patients and methods The study included 1321 men who underwent vasectomy between October 1995 and June 1998. They were followed up in two groups; in group 1 (one-test method) 961 consecutive patients were asked to provide a semen sample for analysis 4 months after vasectomy. Sterility was de®ned as the absence of sperm in one sample. If sperm were present in the sample, the test was repeated at monthly intervals until there were no sperm. In group 2 (twotest method) 360 consecutive patients were advised to provide semen samples 3 and 4 months after vasectomy. The absence of sperm in two consecutive samples was de®ned as the criterion to declare the man azoospermic. The presence of sperm in one sample required further samples every month until two consecutive azoospermic samples were produced. Results In group 1, 810 patients provided semen samples, of which 783 (97%) had no sperm and the men were thus declared azoospermic. The remaining 27 (3%) samples contained sperm; six men withdrew from follow-up at various times but 21 patients produced a negative sample at some time within 7 months and were declared azoospermic. At the end of the followup, 804 (84%) patients had been declared azoospermic. In group 2, 294 (82%) patients provided a semen sample after 3 months but only 259 (72%) did so after 4 months. Of the patients providing the ®rst sample, 287 (98%) were azoospermic, and after the second 252 (97%) were azoospermic. At the end of the followup 255 (71%) patients were declared azoospermic.There was no reported paternity in any of the men. Conclusion These results suggest that compliance was better in group 1; when the patients in group 2 were asked to provide a second sample the compliance decreased signi®cantly. The percentage of patients producing an azoospermic sample was similar for semen provided after 3 and 4 months. Thus, provided that the patient is adequately warned about the risk of failure of the vasectomy at any time during his life, a single semen analysis after 3 months is suf®cient grounds for discontinuing other contraceptive precautions.

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“…Vasectomy is the most common method of male contraception used worldwide; the number of sterilized men is estimated to be between 40 and 60 million, and vasectomy is thought to account for 5-10% of all contraceptive methods used 2,3 . This procedure, started in the United Kingdom by the Simon Population Trust, has become an increasingly accepted form of birth control 4 of measures to obtain complete and durable obliteration of vas. Some of these methods used in combination are cutting, removing some vasal length, suture ligation of the cut ends, clipping, diathermy fulguration of the lumen and fascial interposition.…”

Section: Introductionmentioning

confidence: 99%