title: Semen preparation techniques in intrauterine insemination: A comparison of non-temperature and temperature controlled centrifugation in cases of unexplained infertility.
abstract: OBJECTIVE
  The aim of the following study is to compare pregnancy rates between the use of non-temperature and temperature controlled centrifugation on semen preparation technique in intrauterine insemination.
  
  
  METHODS
  The retrospective study was conducted on 671 patients of idiopathic infertility who underwent homologous artificial insemination at Fertility Research Center from the period of January 2007 to September 2012. The couples were randomized into two groups namely, Group A-patients (n = 303) being treated with sperm prepared by using non-temperature controlled centrifuge and Group B-Patients (n = 368) being treated with sperm prepared by temperature (37°C) controlled centrifuge.
  
  
  CONCLUSIONS
  The clinical pregnancy rate Group A was 13.86% and Group B was 12.77%. The clinical pregnancy fetal loss rate between the two groups was 38% and 42% respectively. The delivery rate per transfer was 62% and 58% respectively. No statistically significant difference was found between these two groups.
authors.affiliation: Department of Research, Fertility Research Centre, GG Hospital, Chennai, Tamil Nadu, India.
authors.forename: Priya
authors.initials: P
authors.lastname: Selvaraj
authors.affiliation: Department of Research, Fertility Research Centre, GG Hospital, Chennai, Tamil Nadu, India.
authors.forename: Kamala
authors.initials: K
authors.lastname: Selvaraj
authors.affiliation: Department of Research, Fertility Research Centre, GG Hospital, Chennai, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Kalaichelvi
authors.affiliation: Department of Research, Fertility Research Centre, GG Hospital, Chennai, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Mahalakshmi
keywords: Intrauterine insemination; morphology; pregnancy rate; sperm concentration; sperm motility