Journal
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
Volume 27, Issue 1, Pages 42-47Publisher
INFORMA HEALTHCARE
DOI: 10.3109/14767058.2013.799657
Keywords
Acidosis; asphyxia; dichorionic; monochorionic diamniotic; vaginal twin delivery
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Objectives: To investigate the effect of chorionicity and twin-to-twin delivery time interval on short-term outcome in the second twin as well as to investigate the predictors of adverse outcome in both twins. Methods: Data included vaginally delivered twins (>= 36 weeks) from openhagen University Hospitals (2001-2009). The association between delivery interval and adverse outcome parameters was compared for monochorionic (MC) and dichorionic (DC) twins by multiple linear regression. Predictors were studied by logistic regression. Results: There were 554 twin pairs, of which 57 were MC and 485 DC. We found no difference in the decrease of pH (p = 0.912) and Apgar (p = 0.609) in relation to increasing time interval. Neonatal unit (NICU) admissions did not differ (p = 0.167). Apgar <= 7 (p < 0.001) and pH <= 7.20 (p < 0.002) increased first twin risk of NICU admission, whereas first (p = 0.001) or second (p < 0.001) twin Apgar <= 7 and second twin pH <= 7.00 (p = 0.003) increased second twin risk of NICU admission. Conclusions: Increasing delivery interval was associated with a significant decrease in pH and Apgar, but there was no difference between MC and DC twins. Low Apgar of the first twin increased the risk of second twin NICU admission.
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