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Trends in the obstetric features and management of twin pregnancies.
Smith, K E Ravikumar, N Hession, M Morrison, J J
Smith, K E
Ravikumar, N
Hession, M
Morrison, J J
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Editors
Other Contributors
Date
2010-03
Date Submitted
Keywords
Other Subjects
Subject Mesh
Adult
Chi-Square Distribution
Delivery, Obstetric
Female
Hospitals, University
Humans
Incidence
Infant, Newborn
Ireland
Pregnancy
Pregnancy Outcome
Pregnancy, Multiple
Twins
Chi-Square Distribution
Delivery, Obstetric
Female
Hospitals, University
Humans
Incidence
Infant, Newborn
Ireland
Pregnancy
Pregnancy Outcome
Pregnancy, Multiple
Twins
Planned Date
Start Date
Collaborators
Principal Investigators
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Article5126.pdf
Adobe PDF, 10.11 KB
Alternative Titles
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Abstract
There are no reports outlining the trends in obstetric features and clinical management of twin pregnancies in an Irish obstetric population. The aim of this study was to investigate these factors for all twin pregnancies delivered during the 19 year period between 1989 and 2007, at Galway University Hospital (GUH). There were 52,199 infants delivered at GUH, of which 1594 infants (3.05% of births) were twins, related to 797 twin pregnancies. The overall incidence of twin pregnancies was 1.52%, increasing from 0.8%-1.0% in the early years of the study to 1.7-1.8% in the latter years of the study (P<0.001). There was a significant increase in incidence of twins born to mothers aged 30-39 years, alongside a significant reduction to mothers aged 20-29 years (P<0.01). The caesarean section rate overall was 41.5% (331/797), of which 54% (n=179) were elective, and 46% (n=152) were emergency, representing an emergency caesarean section rate of 19.1% of all twin pregnancies, and of 24.6% after exclusion of elective caesarean sections. The caesarean section rate for twins increased from 30% in 1989 to greater than 50% in the latter years of the study (P<0.01), related largely to a significant increase in elective caesarean sections (P<0.01). The combined vaginal-caesarean delivery rate was remarkably low at 0.75% of all twin pregnancies, and 1% after exclusion of elective caesarean sections. The preterm delivery rates were 4.1% (<32 weeks), and 16.3% (<36 weeks), with an overall perinatal mortality rate of 37 per 1000. These findings highlight the altered demographic and clinical aspects of twin pregnancies in an Irish obstetric population.
Language
en
ISSN
0332-3102
eISSN
ISBN
DOI
PMID
20666067