چكيده لاتين :
Background: Th e role of embryo transfer (ET) in the success
of invitro fertilization/intra cytoplasmic sperm injection
treatment is not well understood. In the present study we classified
ET technique as difficult and easy types according to
certain strictcriteria, and compared the pregnancy outcome of
the two ET types.
Methods: This study was performed retrosp ectively on 295
infertile patients undergoing 308 embryo transfer cycles during
May 2006-March 2007 in Mashhad IYF center.
These cycles were divided into two groups. Group I had an
easy embryo transfer (n=248) and group II had a difficult embryo
transfer (n=60) . The ET was considered as easy if the
catheter insertion was successfully achieved without difficulty
or needed s light manipulations of speculum or outer sheath of
the catheter. ET was considered as difficult if slight maneuvers
did not result in successful catheter inserti on, tenaculum was
used , or there was a need to use rigid cathe ters. Observation of
beating fetal heart in a gesta tiona l sac of 6-7 weeks cons idered
as positive pregnancy. Comparison of the pregnancy outcome
between both groups wa s performed by using Student I test and
Chi-sq uare test. The resu lts were show n as X2±SD. P
value<0.05 was cons idered statistically si gnificant.
Results: The differences between two groups rega rding age,
number of fo llic les 2: 14 mm , number of retrieved oo cytes, and
number of transferred embryos were not s ignificant (P>0.1).
The total number of pregnancies was 55 (17.9%): 48 (19.4%)
in gro up I and 7 (11 .7%) in gro up II. The d ifference was not
s ignifica nt (P =0 .16 3).
Conclusion : Although the rate of positive pre gnancy with
easy ET was higher than difficult ET , there was no significant
difference between the two groups (P =0. 163). This may be
due to the type of c lass ifica tion of eas y and diffi cult, or fewer
patients .
