Effect of flushing the vasa deferentia at the time of vasectomy on the rate of azoospermia

Sommer, Frank; Wolter, Stephan; Бондаренко, Б. Б.; Raible, A.; Caspers, H.P.; Esders, K.; Bartsch, Georg; Schoenenberger, Andreas W.; Engelmann, U.

doi:10.1016/s1569-9056(02)80717-5

Cited by 3 publications

(8 citation statements)

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“…(2002) reported that the vigorous form of cycling in 51 long‐distance cyclists was associated with an increase of scrotal temperature in the median up to 36.6 °C. However, comparison of semen quality of these men with 50 control subjects revealed no significant differences (Sommer et al. , 2002).…”

Section: Discussionmentioning

confidence: 85%

“…Our observations during moderate cycling do not support the hypothesis proposed by some authors (Sommer, 2004) that cycling in general is associated with strong genital heat stress and thus impaired semen quality. On the other hand, Sommer et al. (2002) reported that the vigorous form of cycling in 51 long‐distance cyclists was associated with an increase of scrotal temperature in the median up to 36.6 °C.…”

Section: Discussionmentioning

confidence: 99%

“…A negative impact of cycling with increased scrotal temperatures on semen quality has been postulated in several articles (Lucía et al. , 1996; Sommer et al. , 2002; Gebreegziabher et al.…”

Section: Introductionmentioning

confidence: 96%

“…However, cycling is associated with physical activity, which improves perigenital air circulation allowing heat dissipation. Until now, to our knowledge, only in one study with cyclists scrotal temperatures have been measured during a bicycle ride (Sommer et al. , 2002).…”

Section: Introductionmentioning

confidence: 99%

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Influence of moderate cycling on scrotal temperature

Jung

Strauss

Lindner³

et al. 2008

Int J of Andrology

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Testicular temperature highly correlates with scrotal temperature. It has been postulated that cycling is associated with increased scrotal temperatures with time and consecutively with impaired semen quality. The aim of this study was to evaluate the influence of moderate cycling on scrotal temperature during highly standardized conditions in an experimental lab. A total of 25 volunteers without a history of infertility and normal andrological examination were included for scrotal temperature evaluation. Scrotal temperatures were measured every minute with a portable data recorder connected with two thermistor temperature sensors, which were attached on either side of the scrotum. A further thermistor sensor was attached on the central surface of the bicycle saddle. Ambient temperature in the study room was adjusted to 22 degrees C throughout the whole experiment. All volunteers started the experiment at the same daytime. Clothing of the volunteers consisted of standardized cotton wool trousers and shirts fitting to body size. After acclimatization to the study room in a sitting posture, each volunteer cycled on an exercise cycle for 60 min with a power of 25 Watt representing a speed of 25.45 km/h respectively. The saddle surface temperature reached in the median 35.59 degrees C after 60 min cycling. Median values of scrotal temperatures increased from 35.75 degrees C at the beginning to 35.82 degrees C after 60 min for the left side and from 35.50 to 35.59 degrees C for the right side. No correlation between cycling duration and scrotal temperatures could be found using multivariate anova for repeated measurements. However, scrotal temperatures during cycling were significantly lower (p < 0.001) compared with the last 10 min in sitting posture before starting cycling with a difference of 1.31 degrees C for the left and 1.46 degrees C for the right side. The present study suggests that moderate cycling under standardized conditions with a power of 25 Watt is not a major genital heat stress factor.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of moderate cycling on scrotal temperature

Jung

Strauss

Lindner³

et al. 2008

Int J of Andrology

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“…This is in accord with Mason et al [12], who assessed infertility rates in 200 men undergoing vasectomy with or without vasal lavage with 10 mL of sterile water. However, Sommer et al [11] reported a statistical difference in infertility rates when using 40 mL of sterile water in a study of 59 patients randomly allocated to vasectomy with and without vasal lavage.…”

Section: Discussionmentioning

confidence: 99%

The effect of perioperative distal vasal lavage on subsequent semen analysis after vasectomy: a prospective randomized controlled trial

et al. 2002

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Objective To determine the effect of perioperative distal vasal lavage with 50 mL of normal saline on subsequent time to azoospermia after vasectomy. Patients and methods Seventy-two patients were prospectively enrolled and randomized to undergo vasectomy with or without vasal lavage. Infertility rates at 8, 10 and 12 weeks were compared for both groups and for those undergoing the procedure under local or general anaesthesia. Patient compliance for returning postoperative semen for analysis was also assessed. Results There was no statistically significant difference in infertility rates at 8, 10 or 12 weeks after vasectomy with or without vasal lavage. Vasectomies performed under local and general anaesthesia had comparable rates of infertility at 12 weeks after surgery. Compliance in providing semen for analysis was poor. Conclusions The routine adoption of distal vasal lavage during vasectomy for contraception cannot be recommended. As compliance in providing semen for analysis was poor, the clinician has a responsibility to remind the patient of the consequences of such action.

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Vasectomy occlusion techniques for male sterilization

Cook¹,

Vliet

Pun³

et al. 2004

Cochrane Database of Systematic Reviews

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No conclusions can be made about the effectiveness, safety, acceptability and costs of vas occlusion technique or vas irrigation as studies that examined these were of low quality and underpowered. Fascial interposition is associated with improved vasectomy success but is associated with some increased surgical difficulty. Randomized controlled trials examining other vasectomy techniques were not available. More research is required to examine vasectomy techniques.

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Effect of flushing the vasa deferentia at the time of vasectomy on the rate of azoospermia

Cited by 3 publications

References 0 publications

Influence of moderate cycling on scrotal temperature

Influence of moderate cycling on scrotal temperature

The effect of perioperative distal vasal lavage on subsequent semen analysis after vasectomy: a prospective randomized controlled trial

Vasectomy occlusion techniques for male sterilization

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