The multiple pregnancy: is it really a factor of high obstetric risk?

The multiple pregnancy now a days is acquiring epidemic dimensions, mainly due to the induction of the ovulation and the more frequent use of techniques of assisted reproduction. It is known through diverse studies that the fetuses coming from multiple pregnancies possess a risk of fetal death betwe...

Descripción completa

Autores Principales: Herrera León, Lorenzo I., Martínez Barreiro, Luis Armando
Formato: Artículo
Idioma: Español
Publicado: Universidad de Costa Rica 2009
Materias:
Acceso en línea: http://revistas.ucr.ac.cr/index.php/psm/article/view/1600
http://hdl.handle.net/10669/21831
id RepoKERWA21831
recordtype dspace
spelling RepoKERWA218312017-08-08T18:50:45Z The multiple pregnancy: is it really a factor of high obstetric risk? El embarazo múltiple: ¿es realmente un factor de alto riesgo obstétrico?. Herrera León, Lorenzo I. Martínez Barreiro, Luis Armando Pregnancy type multiple-simple over risk fetal survival Tipo de embarazo sobre riesgo múltiple/sencillo sobrevivencia fetal The multiple pregnancy now a days is acquiring epidemic dimensions, mainly due to the induction of the ovulation and the more frequent use of techniques of assisted reproduction. It is known through diverse studies that the fetuses coming from multiple pregnancies possess a risk of fetal death between 5 and 10 times superior to that of simple type and they are also prone to present under weight and a series of morbid episodes comparatively with the unique fetuses. Objective: To determine the risk of mortality and to estimate the level of fetal survival according to pregnancy type and its associate factors. Methodology: The rates of fetal mortality were calculated according to factors like maternal age, number of previous pregnancies, abortions, sex of the fetus and weight at the moment of the expulsion, according to the pregnancy type. Cohorts of pregnancies were also reconstructed with what was possible to apply life table technics in order to estimate the curves of survival of the fetus in uterus. Results: It was confirmed the character of risk of the multiple pregnancy with regard to the simple one, nevertheless a group of paradoxes came out to light like that of the advanced maternal age for multiple pregnancies, which evidences that to more maternal age the risk of experiencing fetal death decreces in the multiple pregnancies. Something similar happened with the number of previous pregnancies had by the pregnants. Another paradoxical fact constituted the weight, for conduit of which was showed that in the inferior categories of weight, the fetus coming from a multiple pregnancy possesses a similar and even smaller risk than the simple one and consequently a superior survival in uterus. El embarazo múltiple hoy en día esta adquiriendo dimensiones epidémicas debido en gran medida a la inducción de la ovulación y al uso cada vez más frecuente de técnicas de reproducción asistida. Se sabe a través de diversos estudios que los fetos procedentes de embarazos múltiples poseen un riesgo de muerte fetal entre 5 y 10 veces superior al de tipo sencillo y también son más propensos a presentar bajo peso y una serie de episodios mórbidos comparativamente con los fetos únicos. Objetivo: Determinar el riesgo de mortalidad y estimar el nivel de sobrevivencia fetal según tipo de embarazo y factores asociados. Metodología: Se calcularon las tasas de mortalidad fetal atendiendo a factores como la edad materna, número de embarazos previos, abortos, sexo del feto y peso al momento de la expulsión, según el tipo de embarazo. Además se reconstruyeron cohortes de embarazos con lo que fue posible aplicar técnicas de tablas de vida para estimar las curvas de sobrevivencia del feto en útero. Resultados: Se confirmó el carácter esencialmente de riesgo del embarazo múltiple con respecto al sencillo, no obstante salió a la luz un grupo de paradojas como la de la edad materna avanzada para embarazos múltiples, la cual evidencia que a mayor edad materna el riesgo de experimentar muerte fetal decrece en los embarazos múltiples. Algo similar ocurrió con el número de embarazos previos tenidos por las gestantes. Otro hecho paradójico lo constituyó el factor peso, por conducto del cual se manifestó que en las categorías inferiores de peso, el feto procedente de un embarazo múltiple posee un riesgo similar e incluso menor que el sencillo y consecuentemente una sobrevivencia en útero superior. 2009-01-01 2016-05-02T22:37:00Z 2016-05-02T22:37:00Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revistas.ucr.ac.cr/index.php/psm/article/view/1600 10.15517/psm.v6i2.1600 http://hdl.handle.net/10669/21831 spa Población y Salud en Mesoamérica; Copyright (c) 2014 Población y Salud en Mesoamérica application/pdf Universidad de Costa Rica Población y Salud en Mesoamérica; Volúmen 6, Número 2 Población y Salud en Mesoamérica; Volúmen 6, Número 2 Población y Salud en Mesoamérica; Volúmen 6, Número 2 1659-0201
institution Universidad de Costa Rica
collection Repositorio KERWA
language Español
topic Pregnancy type
multiple-simple over risk
fetal survival
Tipo de embarazo
sobre riesgo múltiple/sencillo
sobrevivencia fetal
spellingShingle Pregnancy type
multiple-simple over risk
fetal survival
Tipo de embarazo
sobre riesgo múltiple/sencillo
sobrevivencia fetal
Herrera León, Lorenzo I.
Martínez Barreiro, Luis Armando
The multiple pregnancy: is it really a factor of high obstetric risk?
description The multiple pregnancy now a days is acquiring epidemic dimensions, mainly due to the induction of the ovulation and the more frequent use of techniques of assisted reproduction. It is known through diverse studies that the fetuses coming from multiple pregnancies possess a risk of fetal death between 5 and 10 times superior to that of simple type and they are also prone to present under weight and a series of morbid episodes comparatively with the unique fetuses. Objective: To determine the risk of mortality and to estimate the level of fetal survival according to pregnancy type and its associate factors. Methodology: The rates of fetal mortality were calculated according to factors like maternal age, number of previous pregnancies, abortions, sex of the fetus and weight at the moment of the expulsion, according to the pregnancy type. Cohorts of pregnancies were also reconstructed with what was possible to apply life table technics in order to estimate the curves of survival of the fetus in uterus. Results: It was confirmed the character of risk of the multiple pregnancy with regard to the simple one, nevertheless a group of paradoxes came out to light like that of the advanced maternal age for multiple pregnancies, which evidences that to more maternal age the risk of experiencing fetal death decreces in the multiple pregnancies. Something similar happened with the number of previous pregnancies had by the pregnants. Another paradoxical fact constituted the weight, for conduit of which was showed that in the inferior categories of weight, the fetus coming from a multiple pregnancy possesses a similar and even smaller risk than the simple one and consequently a superior survival in uterus.
format Artículo
author Herrera León, Lorenzo I.
Martínez Barreiro, Luis Armando
author_sort Herrera León, Lorenzo I.
title The multiple pregnancy: is it really a factor of high obstetric risk?
title_short The multiple pregnancy: is it really a factor of high obstetric risk?
title_full The multiple pregnancy: is it really a factor of high obstetric risk?
title_fullStr The multiple pregnancy: is it really a factor of high obstetric risk?
title_full_unstemmed The multiple pregnancy: is it really a factor of high obstetric risk?
title_sort multiple pregnancy: is it really a factor of high obstetric risk?
publisher Universidad de Costa Rica
publishDate 2009
url http://revistas.ucr.ac.cr/index.php/psm/article/view/1600
http://hdl.handle.net/10669/21831
_version_ 1575730437219680256
score 11.593091