Appropriate embryo transfer technique improves the pregnancy rate in human in vitro fertilization

ÖÇAL K. P., ÇEPNİ İ., Idil M. H., Salihoglu F., İREZ T., Aksu F.

Middle East Fertility Society Journal, vol.8, no.1, pp.65-68, 2003 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 1
  • Publication Date: 2003
  • Journal Name: Middle East Fertility Society Journal
  • Journal Indexes: Scopus
  • Page Numbers: pp.65-68
  • Keywords: Embryo transfer, IVF, Pregnancy rate
  • İstanbul Yeni Yüzyıl University Affiliated: Yes

Abstract

Objective: Comparison of two different embryo transfer techniques in an IVF program. Design: Prospective, randomized clinical study. Setting: The IVF Research and Practice Center of Istanbul University, Istanbul, Turkey. Subjects: 298 patients undergoing IVF-ET. Interventions: Patients were randomly assigned to undergo ET by different techniques. All patients were transferred with the TDT catheter. The tip of the outer catheter was straight in group 1(n=152) and it was bent to approximate the curvature of the cervical canal in group 2(n=146). Main Outcome Measures: Pregnancy rate and simulate technical difficulty with ET. Results: Pregnancy rate in group 2 was significantly higher than group 1 (27.4% vs. 17.7%). Technical difficulty was similar for both techniques. Conclusions: Bending the tip of the transfer catheter to simulate the curvature of the cervical canal improves the pregnancy rate.