Pregnancy rate and live birth rate are higher after blastocyst transfer than after day 2 and day 3 embryo transfer following  Intracytoplasmic sperm injection (ICSI).

RMJ. 2010; 35(2): 124-128

Ayisha Qureshi,* Nadeem Afraz,** Naseem Ashraf,*** Anjum A. Siddiq***.

Abstract
ABSTRACT Objective To compare the differences in outcome when embryo transfer was performed on day 2, day 3 and day 5 following ICSI. Subjects and Methods A total of 644 subjects undergoing ICSI at Islamabad Clinic Serving Infertile Couples, with embryo transfers on day 2, day 3 and day 5 were included. It was carried out between February 2000 and February 2005. Main outcomes measured were fertilization, pregnancy and live birth rates. Results The percentage of Metaphase II oocytes retrieved and the fertilization rate were significantly (P Key words: ICSI, ART, blastocyst transfer, cleavage stage, pregnancy outcome, live birth rate.