Mode of conception, placental morphology and perinatal outcome of twin gestations
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L. H. Narine
Abstract
Objective: To compare the perinatal outcome and placental morphology of twins conceived by assisted reproductive technologies (ART) or natural conception (NC).
Methods: The present retrospective study included 88 twin pairs. Methods of ART included in vitro fertilization, intrauterine insemination, embryo transfer and induced ovulation. Placental morphology was described by chorionicity, amnionicity, placental weight, umbilical cord insertion and the number of cord vessels. Perinatal outcomes included maternal age, gestational age, birth weight (BW), BW discordance and mode of delivery.
Results: The mothers of ART twins were 4 years older than NC mothers. ART twins delivered 2.2 weeks earlier than NC twins. The BW of ART twins A and B were less than NC twins A and B. There was no difference in the proportion of discordant twins in either group. Dichorionic diamniotic (DD) placentas accounted for the majority of placentas in both groups. There were no monochorionic-monoamniotic placentas in ART pairs, but there were 2.9% in NC pairs. Mode of conception had no effect on placental weight in DD or monochorionic-diamniotic twins in either group except for larger DD fused placentas in the ART group.
Conclusion: ART twin pairs were delivered at an earlier gestational age at lower birth weights to older mothers predominantly by cesarean section. This perinatal outcome was not reflected by placental morphology.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Mode of conception, placental morphology and perinatal outcome of twin gestations
- The effects of birth weight discordance and prematurity on twin neonatal outcome
- Esophageal atresia and tracheoesophageal fistula: the impact of prenatal suspicion on neonatal outcome in a tertiary care center
- Microbial invasion of the amniotic cavity at birth is associated with adverse short-term outcome of preterm infants
- Is treatment with vaginal pessaries an option in patients with a sonographically detected short cervix?
- The effects of intramuscular administration of corticosteroids on the induction of parturition
- Perinatal significance of diagnosing glucose intolerance during pregnancy with portable glucose meter
- Biovar diversity of Ureaplasma urealyticum in amniotic fluid: distribution, intrauterine inflammatory response and pregnancy outcomes
- Comparative study on the expression of cytokine – receptor genes in normal and preeclamptic human placentas using DNA microarrays
- Chorioangioma – new insights into a well-known problem I. Results of a clinical and morphological study of 136 cases
- Chorioangiomas – new insights into a well-known problem II. An immuno-histochemical investigation of 136 cases
- Impaired CD14-dependent and independent response of polymorphonuclear leukocytes in preterm infants
- The left portal vein is the watershed of the fetal venous system
- Congress Calendar
