Document Detail

The effect of birth order in twins on fetal umbilical blood gas and apgar score.
MedLine Citation:
PMID:  2178044     Owner:  NLM     Status:  MEDLINE    
Although recent reports have revealed no difference in perinatal mortality between a set of twins, more sensitive means other than perinatal mortality are necessary to evaluate differences in twins. This study examined differences between 34 twin pairs with respect to Apgar score, umbilical venous and arterial blood gas, and acid-base data. The parameters were measured in paired samples and compared with the paired t test and Fisher's exact probability test. The most coherent findings were a higher umbilical venous PO2 and umbilical arterial PO2 in twin A. Their differences were not due to the route of delivery, interval between twins, presentation or chorionicity. The data suggest that the second-born twin has potentially greater susceptibility to hypoxia and trauma.
T H Chang; C J Jeng; C C Lan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zhonghua yi xue za zhi = Chinese medical journal; Free China ed     Volume:  46     ISSN:  0578-1337     ISO Abbreviation:  Zhonghua Yi Xue Za Zhi (Taipei)     Publication Date:  1990 Sep 
Date Detail:
Created Date:  1991-03-18     Completed Date:  1991-03-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0005327     Medline TA:  Zhonghua Yi Xue Za Zhi (Taipei)     Country:  TAIWAN    
Other Details:
Languages:  eng     Pagination:  156-60     Citation Subset:  IM    
Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, R.O.C.
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MeSH Terms
Apgar Score*
Birth Order*
Carbon Dioxide / blood
Fetal Blood / chemistry*
Hydrogen-Ion Concentration
Infant, Newborn
Oxygen / blood
Reg. No./Substance:
124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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