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Federación Mexicana de Ginecología y Obstetricia, A.C.

2016, Number 01

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Ginecol Obstet Mex 2016; 84 (01)

Analysis of factors associated with multiple pregnancies in assisted reproduction treatment complex

Hernández-Nieto CA, Méndez-Lozano DH, Fraustro-Ávila ME, GarcíaMartínez MR, Soto-Cossio LE, Basurto-Díaz D, Flores-Mendoza H

Language: Spanish
References: 21
Page: 27-36
PDF size: 2060.28 Kb.


ABSTRACT

Background: Today, advances in technology provide the best success rates in the reproductive medicine field. One of the biggest concerns about it, is the high risk of achieving multiple pregnancies, which may carry greater health risks for both; the mother and fetuses. Besides that, multiple pregnancies are considered a complication or an adverse effect of assisted reproduction treatments.
Objective: To compare the factors associated with multiple pregnancy in patients who underwent complex assisted reproduction techniques.
Material and Method: A retrospective and transversal case control study was rolled to compare the factors associated with multiple pregnancy rates, these results were correlated using a logistic regression model.
Results: a total of 1063 cases were reviewed, we obtained a pregnancy rate of 35.9%, and a multiple pregnancy rate of 31.5%. We found positive statistical association between patient age, total number of oocytes obtained, total embryos transferred, total vitrified embryos per cycle, total serum cuantitative B-GCH level, endometrial thickness in milimeters, and the Honest of a multiple pregnancy. In the logistic regression model, we found statistical association between the number of embryos transferred, number of embryos obtained, embryo quality, total vitrified embryos and the risk for multiple pregnancies.
Conclusions: The total number of embryos transferred in a cycle of a complex assisted reproduction, Is the most important factor for the onset of multiple pregnancies. The age of patients, the number of oocytes, total number of embryos obtained, the number of embryos transferred, the quality of embryos transferred and the number of frozen embryos per cycle, correlate significantly with more risk for multiple pregnancies.


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