[Effect of the number of transferred embryos on multiple pregnancy]. / Vliv poctu transferovaných embryí na cetnost gravidity.
Ceska Gynekol
; 64(5): 304-8, 1999 Sep.
Article
en Cs
| MEDLINE
| ID: mdl-11048412
ABSTRACT
OBJECTIVE:
The aim of this retrospective study was to assess the influence of the number of transferred embryos on multiple pregnancy.DESIGN:
Retrospective clinical study.SETTING:
Department of Obstetric and Gynecology FN UP, Olomouc.METHODS:
Over the last seven years 572 embryotransfers (ET) have been performed in our centre.RESULTS:
Of the 173 pregnancies (P) achieved there were 56% singletons, 35% twins and 9% triplets. One embryo was transferred in 10% of cases and all 8 pregnancies (15% P/ET) ended with a live birth. Two embryos were transferred in 17% of cases. The pregnancy rate was 20% P/ET, 55% of pregnancies were twins and 10% pregnancies were lost in abortion or ectopic pregnancy. Three embryos were transferred in most cases (62%). The pregnancy rate was the highest in this group (36% P/ET) with 13% twins and 3% triplets. The overall pregnancy loss was 16%, the highest loss, 27%, recorded in triplets. Four embryos were transferred in 11% of cases. The pregnancy rate decreased to 28% P/ET, as well as the number of twins (6%), while the number of triplets increased slightly (5%). Pregnancy loss occurred only in singleton pregnancies.CONCLUSION:
We can conclude that in our setting the pregnancy rate increases with a higher number of embryos up to three embryos transferred. Unfortunately, the higher pregnancy rate with three embryos transferred is on the expense of a higher risk and losses due to multiple pregnancy. Therefore we recommend to transfer two embryos unless there are some specific reasons.
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Banco de datos:
MEDLINE
Asunto principal:
Embarazo Múltiple
/
Fertilización In Vitro
/
Transferencia de Embrión
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
/
Pregnancy
Idioma:
Cs
Año:
1999
Tipo del documento:
Article