title: [The clinical application and research on vas deferens laser coagulation sterilization].
abstract: OBJECTIVE
  To study the effect of Ar(+) laser on human vas deferens and to compare the effects of using different radiation levels with varying thickness of tissue and varying levels of injury.
  
  
  METHODS
  After initial tests on animals, four human scrotums were opened and treated directly with Ar(+) laser radiation. Then 58 human individual scrotums were treated with radiation by the method of trans-skin puncture. The rate of sperm reduction and elimination was tested.
  
  
  RESULTS
  In 60 cases, the sperms were found to be eliminated completely after six months of radiation treatment. In 2 cases the sperms were found not to be eliminated completely due to the insufficient radiation.
  
  
  CONCLUSIONS
  Ar(+) laser is one of the best forms of radiation for coagulation of vas deferens. It can be used to coagulate vas deferens without any complications or sequelae.
authors.affiliation: Binzhou Medical College, Binzhou 256603, China. bzmcsz@163.com
authors.forename: Zhao-hui
authors.initials: ZH
authors.lastname: Sun
authors.forename: Shou-guo
authors.initials: SG
authors.lastname: Yi
authors.forename: De-yao
authors.initials: DY
authors.lastname: Li
authors.forename: Bing
authors.initials: B
authors.lastname: Zhang
authors.forename: Shu-hua
authors.initials: SH
authors.lastname: Wu
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Li
authors.forename: Guan-ying
authors.initials: GY
authors.lastname: Wei
authors.forename: Yue-qiang
authors.initials: YQ
authors.lastname: Wang
authors.forename: Chun-hong
authors.initials: CH
authors.lastname: Zhang
authors.forename: Mei-sheng
authors.initials: MS
authors.lastname: Li
authors.forename: Jun-lou
authors.initials: JL
authors.lastname: Xiao
authors.forename: Tian-cai
authors.initials: TC
authors.lastname: Lu
mesh_terms: D000328:Adult; D005500:Follow-Up Studies; D006801:Humans; D017075:Laser Coagulation; D008297:Male; D013245:Sterilization, Reproductive / Q000379:methods*; D014649:Vas Deferens / Q000601:surgery