Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy

Introduction: The incidence of multiple gestations is increasing worldwide and many studies have shown higher perinatal morbidity and mortality rates in monochorionic twins compared to dichorionic. The aim of this study was to assess the twin population born at a tertiary center and to evaluate the...

Full description

Bibliographic Details
Main Authors: Marta Machado, Elsa Lima Teixeira, Lígia Maria Ferreira, Filipa Rodrigues, Raquel Henriques, Eulália Afonso
Format: Article
Language:English
Published: Ordem dos Médicos 2017-01-01
Series:Acta Médica Portuguesa
Subjects:
Online Access:http://actamedicaportuguesa.com/revista/index.php/amp/article/view/7133
_version_ 1819147090516770816
author Marta Machado
Elsa Lima Teixeira
Lígia Maria Ferreira
Filipa Rodrigues
Raquel Henriques
Eulália Afonso
author_facet Marta Machado
Elsa Lima Teixeira
Lígia Maria Ferreira
Filipa Rodrigues
Raquel Henriques
Eulália Afonso
author_sort Marta Machado
collection DOAJ
description Introduction: The incidence of multiple gestations is increasing worldwide and many studies have shown higher perinatal morbidity and mortality rates in monochorionic twins compared to dichorionic. The aim of this study was to assess the twin population born at a tertiary center and to evaluate the impact of chorionicity on perinatal outcomes of twin pregnancies. Material and Methods: Retrospective study of all twins born in a tertiary center from January 2004 to December 2013. Results: In this period, 1051 twins were born, related to 540 gestations (26.7% monochorionic; 73.3% dichorionic). There was no statistical significant difference between the groups concerning obstetric complications. The monochorionic group had a higher incidence of intrauterine growth restriction (20.5 vs 11.3%, p < 0.001), lower mean maternal age (29.9 vs 31.9 years, p < 0.001), lower mean gestational age (33.4 vs 34.3 weeks, p < 0.05) and lower mean birth weight (1943 vs 2147 g, p < 0.001). Monochorionic twins had a higher incidence of hyaline membrane disease (7 vs 4%, p < 0.05), sepsis (10.3 vs 5.8%, p < 0.05) and anemia (9.5 vs 5.4%, p < 0.05). There were no statistical significant differences concerning necrotizing enterocolitis, intraperiventricular hemorrhage or retinopathy of prematurity. Perinatal mortality was higher in the monochorionic group (5.2 vs 2.9%, p < 0.05). Discussion: Monochorionic twins represent considerable challenges to both obstetricians and neonatologists and should be monitored and delivered at tertiary centers. Conclusion: Currently gemelarity has a major impact on total births. It would be interesting to develop protocols to standardize clinical approach to twins.
first_indexed 2024-12-22T13:24:17Z
format Article
id doaj.art-7217aa6c0ab64425a6ab45dfc41f9c5c
institution Directory Open Access Journal
issn 0870-399X
1646-0758
language English
last_indexed 2024-12-22T13:24:17Z
publishDate 2017-01-01
publisher Ordem dos Médicos
record_format Article
series Acta Médica Portuguesa
spelling doaj.art-7217aa6c0ab64425a6ab45dfc41f9c5c2022-12-21T18:24:22ZengOrdem dos MédicosActa Médica Portuguesa0870-399X1646-07582017-01-01301121610.20344/amp.71334400Perinatal Outcome in Relation to Chorionicity in Twin PregnancyMarta Machado0Elsa Lima Teixeira1Lígia Maria Ferreira2Filipa Rodrigues3Raquel Henriques4Eulália Afonso5Serviço de Pediatria. Centro Hospitalar do Baixo Vouga. Aveiro. Portugal.Serviço de Pediatria. Centro Hospitalar Tondela-Viseu. Viseu. Portugal.Serviço de Pediatria. Centro Hospitalar Tondela-Viseu. Viseu. Portugal.Serviço de Pediatria. Centro Hospitalar do Baixo Vouga. Aveiro. Portugal.Serviço de Neonatologia. Maternidade Daniel de Matos. Centro Hospitalar e Universitário de Coimbra. Coimbra. Portugal.Serviço de Neonatologia. Maternidade Daniel de Matos. Centro Hospitalar e Universitário de Coimbra. Coimbra. Portugal.Introduction: The incidence of multiple gestations is increasing worldwide and many studies have shown higher perinatal morbidity and mortality rates in monochorionic twins compared to dichorionic. The aim of this study was to assess the twin population born at a tertiary center and to evaluate the impact of chorionicity on perinatal outcomes of twin pregnancies. Material and Methods: Retrospective study of all twins born in a tertiary center from January 2004 to December 2013. Results: In this period, 1051 twins were born, related to 540 gestations (26.7% monochorionic; 73.3% dichorionic). There was no statistical significant difference between the groups concerning obstetric complications. The monochorionic group had a higher incidence of intrauterine growth restriction (20.5 vs 11.3%, p < 0.001), lower mean maternal age (29.9 vs 31.9 years, p < 0.001), lower mean gestational age (33.4 vs 34.3 weeks, p < 0.05) and lower mean birth weight (1943 vs 2147 g, p < 0.001). Monochorionic twins had a higher incidence of hyaline membrane disease (7 vs 4%, p < 0.05), sepsis (10.3 vs 5.8%, p < 0.05) and anemia (9.5 vs 5.4%, p < 0.05). There were no statistical significant differences concerning necrotizing enterocolitis, intraperiventricular hemorrhage or retinopathy of prematurity. Perinatal mortality was higher in the monochorionic group (5.2 vs 2.9%, p < 0.05). Discussion: Monochorionic twins represent considerable challenges to both obstetricians and neonatologists and should be monitored and delivered at tertiary centers. Conclusion: Currently gemelarity has a major impact on total births. It would be interesting to develop protocols to standardize clinical approach to twins.http://actamedicaportuguesa.com/revista/index.php/amp/article/view/7133Complicações na GravidezCórionGravidez de GémeosResultado da Gravidez
spellingShingle Marta Machado
Elsa Lima Teixeira
Lígia Maria Ferreira
Filipa Rodrigues
Raquel Henriques
Eulália Afonso
Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
Acta Médica Portuguesa
Complicações na Gravidez
Córion
Gravidez de Gémeos
Resultado da Gravidez
title Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
title_full Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
title_fullStr Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
title_full_unstemmed Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
title_short Perinatal Outcome in Relation to Chorionicity in Twin Pregnancy
title_sort perinatal outcome in relation to chorionicity in twin pregnancy
topic Complicações na Gravidez
Córion
Gravidez de Gémeos
Resultado da Gravidez
url http://actamedicaportuguesa.com/revista/index.php/amp/article/view/7133
work_keys_str_mv AT martamachado perinataloutcomeinrelationtochorionicityintwinpregnancy
AT elsalimateixeira perinataloutcomeinrelationtochorionicityintwinpregnancy
AT ligiamariaferreira perinataloutcomeinrelationtochorionicityintwinpregnancy
AT filiparodrigues perinataloutcomeinrelationtochorionicityintwinpregnancy
AT raquelhenriques perinataloutcomeinrelationtochorionicityintwinpregnancy
AT eulaliaafonso perinataloutcomeinrelationtochorionicityintwinpregnancy