Selective single blastocyst transfer study: 604 cases in 6 years

J Hum Reprod Sci. 2008 Jan;1(1):10-4. doi: 10.4103/0974-1208.39591.


Aim: To evaluate the credibility of single blastocyst transfer (SBT) method in selected group of patients.

Settings and design: Retrospective analysis of SBT cases based on computerized data in a private Fertility research centre.

Materials and methods: A total of 604 cases of SBTs, done during June 2000 to June 2006, have been analyzed retrospectively to assess the credibility of the method as a method of choice in selective high fertile group of patients. Women between 28 and 42 years have been included in the retrospective analysis, who had adequate number of eggs for fertilization, between 6 and 12.

Results and conclusions: Grade I blastocyst transfer resulted in 46.6% of clinical pregnancy and grade II blastocyst transfer resulted in 17.4% of clinical pregnancy rates. Overall pregnancy rate was 64%. Pregnancy loss, as early and late fetal wastages, was 11.06%.

Keywords: Ovarian hyper stimulation syndrome (OHSS); single blastocyst transfer (SBT); single embryo transfer (SET).