title: [Effects of catheter depth and infused semen volume on the pregnancy of intrauterine insemination].
abstract: OBJECTIVE
  To evaluate the effects of catheter depth and infused semen volume on the pregnancy rate of intrauterine insemination(IUI) with the husband's semen.
  
  
  METHODS
  According to different catheterizing distances from the fundus and infused semen volumes, 330 patients undergoing intrauterine insemination were randomly divided into 6 groups: A, 1 cm/0.5 ml; B, 1 cm/0.3 ml; C, 2 cm/0.5 ml; D, 2 cm/0.3 ml; E, 3 cm/0.5 ml and F, 3 cm/0.3 ml. The pregnancy rate was investigated in each group.
  
  
  RESULTS
  The pregnancy rates from group A to group E were 9.09% (5/55), 12.73% (7/55), 10.91% (6/55), 29.09% (16/55), 9.09% (5/55) and 12.73% (7/55), respectively. It was significantly higher in group D than in groups A, B, C, E and F(P < 0.05).
  
  
  CONCLUSIONS
  Catheterizing distance of 2 cm from the fundus with infused semen volume of 0.3 ml can significantly improve pregnancy rate in patients undergoing IUI with the husband's semen.
authors.affiliation: Department of Reproductive Health, Shenzhen Women & Childrens Hospital, Shenzhen, Guangdong 518028, China.
authors.forename: Wen-Jie
authors.initials: WJ
authors.lastname: Zhu
authors.forename: Xue-Mei
authors.initials: XM
authors.lastname: Li
authors.forename: Xiu-Min
authors.initials: XM
authors.lastname: Chen
mesh_terms: D000328:Adult; D002404:Catheterization / Q000379:methods*; D005260:Female; D006801:Humans; D007246:Infertility / Q000628:therapy*; D007317:Insemination, Artificial, Homologous / Q000379:methods*; D008297:Male; D011247:Pregnancy; D018873:Pregnancy Rate; D012661:Semen