Bonifacio LE,Reyes ME,Basulto ME, de la Jara DJF,Barros DJC,Santibáñez MÁ,Sánchez SV

Language: Spanish
References: 25
Page: 90-96
PDF size: 345.21 Kb.

ABSTRACT

Background: In Mexico there has been an increased percentage of infertile couples and, besides, an increased number of infertile women with overweight and obesity reaching pregnancies by in vitro fertilization. Overweight and obesity are related to a significantly higher risk of complications, such as preeclampsia, gestational diabetes mellitus, preterm birth, cesarean section, shoulder dystocia and postpartum complications.
Objective: To know the effect of body mass index ≤ 25 kg/m² on the incidence of alive newborns and the adverse perinatal results of women with pregnancies obtained by in vitro fertilization.
Patients and method: Historic cohort study including 156 women with pregnancy obtained by in vitro fertilization, and corroborated 16 to 20 hours later by identifying two pronuclei, with prenatal control and pregnancy resolution at our Institution from January 2006 to December 2010. Two groups were conformed: group 1, with women with body mass index ‹ 25, and group 2, with women with body mass index ≤ 25 at the beginning of the in vitro fertilization cycle.
Results: One hundred fifty-six women who obtained pregnancy by in vitro fertilization were included; 77 women had overweight (body mass index 25-29.9 kg/m²) and only 12 women had obesity. A mild tendency of higher proportion of abortion was observed in the group 2 (20.2% vs 16.4%) as well as a higher incidence of alive newborns in the group 1 (64.2% vs 58.4%), without statistically significant difference.
Conclusions: Body mass index ≤ 25 kg/m² does not affect incidence of alive newborns, nor incidence of abortion, but it is related to a higher risk of preeclampsia and a higher trend to gestational diabetes mellitus in Mexican women achieving pregnancy by in vitro fertilization.

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