OBJECTIVE: To compare the effectiveness of three methods of sperm preparation for IUI during superovulation of infertile women. DESIGN: Randomized assignment of one of three sperm preparation methods. SETTING:University infertility practice. PATIENT(S): Infertile couples undergoing superovulation and IUI. INTERVENTION(S): The method of preparation of sperm for IUI during superovulation was assigned randomly to double centrifugation, multiple-tube swim-up, or Percoll density gradient. MAIN OUTCOME MEASURE(S): Total number and percent recovery of motile sperm, percent of recovered sperm with normal morphology, and cycle fecundity. RESULT(S): No method of sperm preparation provided better cycle fecundity than the others despite differences in sperm recovery. CONCLUSION(S): Double centrifugation, multiple-tube swim-up, and Percoll density gradient sperm preparation for IUI yield similar cycle fecundity rates.
RCT Entities:
OBJECTIVE: To compare the effectiveness of three methods of sperm preparation for IUI during superovulation of infertile women. DESIGN: Randomized assignment of one of three sperm preparation methods. SETTING: University infertility practice. PATIENT(S): Infertile couples undergoing superovulation and IUI. INTERVENTION(S): The method of preparation of sperm for IUI during superovulation was assigned randomly to double centrifugation, multiple-tube swim-up, or Percoll density gradient. MAIN OUTCOME MEASURE(S): Total number and percent recovery of motile sperm, percent of recovered sperm with normal morphology, and cycle fecundity. RESULT(S): No method of sperm preparation provided better cycle fecundity than the others despite differences in sperm recovery. CONCLUSION(S): Double centrifugation, multiple-tube swim-up, and Percoll density gradient sperm preparation for IUI yield similar cycle fecundity rates.