title: Improvement of pregnancy rate by modification of embryo transfer technique: a randomized clinical trial.
abstract: In this randomized trial study, two groups of infertile women (n=55) aged≤40 years underwent in vitro fertilization or intracytoplasmic sperm injection treatment cycles with or without 0.2 mL of air pushed into the catheter after embryo transfer. The implantation and clinical pregnancy rates were statistically significantly higher in the study group than in the controls. This improvement on standard ET technique may advance clinical pregnancy rates.
authors.affiliation: Endocrinology and Female Infertility Department, Reproductive Medicine Research Center, Royan Institute, ACECR, Tehran, Iran. tmadani@royaninstitute.org
authors.forename: Tahereh
authors.initials: T
authors.lastname: Madani
authors.forename: Mahnaz
authors.initials: M
authors.lastname: Ashrafi
authors.forename: Nadia
authors.initials: N
authors.lastname: Jahangiri
authors.forename: Akram Bahman
authors.initials: AB
authors.lastname: Abadi
authors.forename: Narges
authors.initials: N
authors.lastname: Lankarani
mesh_terms: D000328:Adult; D002138:Calibration; D046149:Embryo Culture Techniques / Q000379:methods; D004624:Embryo Transfer / Q000379:methods* / Q000592:standards; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D011247:Pregnancy; D018873:Pregnancy Rate; D016896:Treatment Outcome; D015854:Up-Regulation; D055815:Young Adult