ArticleJournal of Korean medical science2007
Relationship between twin-to-twin delivery interval and umbilical artery acid-base status in the second twin.
Article in Journal of Korean medical science, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 27 citations in OpenAlex.
- Exploring the Optimal Intertwin Delivery Interval for Vaginal Delivery.Reproductive sciences (Thousand Oaks, Calif.) · 2024Article
- Second twin outcome at birth: retrospective analysis in a single tertiary centre in Malaysia.Journal of perinatal medicine · 2024Article
- Observational
- Reappraisal of twinning: epidemiology and outcome in the early neonatal period.Singapore medical journal · 2014Observational
- Umbilical arterial blood gas and perinatal outcome in the second twin according to the planned mode of delivery.International journal of medical sciences · 2011Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this study was to determine the effect of twin-to-twin delivery interval on umbilical artery acid-base status of the second twin at birth. This was a retrospective cohort study of all live-born twins with measured acid-base status in umbilical arterial blood who were delivered after 34 weeks' gestation from June 2003 to February 2006. Twins with any maternal or fetal complications were excluded. Subjects were divided into two groups based on the mode of delivery of the first twin: normal cephalic vaginal deliveries (n=40) or cesarean deliveries (n=67). The inter-twin differences in umbilical arterial blood pH, PCO(2), PO(2), and base excess in twin newborns born vaginally were significantly greater than the corresponding differences in those born by cesarean section. A significant positive correlation was found between twin-to-twin delivery interval and inter-twin difference in umbilical arterial blood pH in twin newborns born vaginally. The umbilical arterial blood pH of the second twin was less than 7.0 in 14% (2/14) in cases delivered more than 20 min after the first twin. The umbilical arterial blood gas status of the second twin worsened with increasing twin-to-twin delivery interval, and pathologic fetal acidemia (pH<7.0) might develop in the second twin when the twin-to-twin delivery interval was greater than 20 min.
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Registered trials
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