Presencia de microorganismos oportunistas en el endocérvix y su influencia en la tasa de gestación en un programa de FIV-ICSI

Article information

Resumen

Objetivos

Estudiar la asociación entre cultivos endocervicales positivos para microorganismos distintos de Lactobacillus spp. y las tasas de gestación obtenidas, en las técnicas de FIV-ICSI.

Métodos

Se recogieron muestras endocervicales para estudio microbiológico de 109 mujeres sometidas a técnicas de FIV-ICSI, en el momento de la transferencia embrionaria.

Resultados

Un total de 18 cultivos (16,5%) fueron positivos. El total de embarazos fue de 32 (un 29,35% por transferencia). Cinco correspondieron a mujeres con cultivo positivo (un 27,8% por transferencia) y 13 a mujeres con cultivo negativo (un 29,7% por transferencia). Las causas de esterilidad, el número de FIV e ICSI, el número de ovocitos por punción y el número de embriones transferidos fue similar en ambos grupos, sin que se hayan encontrado diferencias significativas.

Conclusiones

La presencia en el endocérvix de microorganismos oportunistas, en el momento de la transferencia embrionaria no es suficiente para alterar la implantación embrionaria, y por tanto disminuir las tasas de gestación.

Palabras clave:

Cultivo endocervical

Transferencia embrionaria

Fecundación in vitro

Summary

Objectives

To assess the relationship between positive endocervical culture for microorganisms other than Lactobacillus spp. and pregnancy rates in an in vitro fertilization program.

Methods

Microbiological culture was carried out in endocervical samples from 109 patients who underwent embryo transfer after in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI).

Results

Eighteen cultures (16.5%) were positive. The total number of pregnancies was 32 (29.35% per transfer). Five pregnancies were obtained in women with a positive culture (27.8% per transfer) and 13 were obtained in women with a negative culture (29.7% per transfer). No significant differences were observed between groups in the etiology of infertility, number of IVF or ICSI, number of oocytes per puncture, or number of embryos transferred.

Conclusions

The presence of opportunistic microorganisms in the endocervix at the time of embryo transfer does not alter embryo implantation or reduce pregnancy rates.

Keywords:

Endocervical culture

Embryo transfer

In vitro fertilization

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