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Paper Information

Journal:   AVICENNA JOURNAL OF CLINICAL MEDICINE (SCIENTIFIC JOURNAL OF HAMADAN UNIVERSITY OF MEDICAL SCIENCES AND HEALTH SERVICES)   Fall 2002 , Volume 9 , Number 3 (SN 25); Page(s) 5 To 10.
 
Paper: 

ASSESSMENT THE EFFECT OF MATERNAL OXYGEN ADMINISTRATION ON UMBILICAL CORD BLOOD GAS VALUES DURING THE SECOND STAGE

 
 
Author(s):  YAVANGI M.*, ARTIMANI T.
 
* Hamadan University of Medical Sciences & Health Services , Hamadan, Iran
 
Abstract: 

This study was conducted to assess the role of maternal oxygen administration during the second stage of labor on umbilical cord blood gas values. This study was done in Fatemieh hospital on 160 pregnant women who were admitted for vaginal delivery and had the inclusion criteria.
A group of 80 women with term pregnancy were administered oxygen during the second stage of labor and another group of 80 women with term pregnancy acted as control (Randomized clinical trial). Umbilical cord blood gas values were measured immediately after birth. Apgar score and duration of oxygen administration of two groups were documented. Blood gas values, apgar score, duration of oxygen therapy, duration of second stage of labor also were recorded.
In the case group: The umbilical artery pH value was 7.25 (7.06-7.38) and umbilical vein pH was > 7.31 (7.13-7.45). Umbilical artery pH in the control group was 7.28 (7.08-7.96) and umbilical vein pH was 7.31 (7.02-7.44). There was no statistically difference between means of umbilical cord blood gas values of the groups (case and control, P>0.05). There was perfect negative correlation between umbilical cord blood gas values and duration of oxygen administration (P<0.001, r =-0.5).
In fact oxygen administration in second stage of labor has not any effect on cord blood gas analysis, provided that no clinical evidence of danger for mother or fetus present. Besides prolonged oxygen administration can cause decrease in arterial pH.

 
Keyword(s): BLOOD GAS ANALYSIS, FETAL BLOOD, LABOR STAGE, SECOND OXYGEN - THERAPEUTIC USE
 
References: 
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  Persian Abstract Yearly Visit 68
 
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