Computerized analysis of acute and chronic changes in fetal heart rate variation and fetal activity in association with maternal smoking
Article Abstract:
Computer analysis of ultrasound measurements of fetal heart rate and general fetal activity shows that fetuses are affected when their mothers smoke a cigarette. This was the conclusion of researchers who studied 13 pregnant smokers and 13 pregnant non-smokers.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 2001
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Improved intrapartum surveillance with PR interval analysis of the fetal electrocardiogram: a randomized trial showing a reduction in fetal blood sampling
Article Abstract:
The need for fetal scalp blood sampling procedures may be reduced by supplementing standard electronic fetal monitoring with fetal electrocardiograms. Researchers compared fetal outcomes of 100 pregnant women with high risk labors who received electronic fetal monitoring alone to the outcomes of 84 high risk women who received electronic fetal monitoring plus fetal electrocardiogram analysis. Fetuses in the electronic fetal monitoring plus fetal electrocardiogram group received fewer fetal scalp blood samplings, and these samplings were more likely to yield abnormal pH results than in the other group. Slightly more unsuspected instances of lack of oxygen in fetuses occurred in the electronic fetal monitoring group. The use of fetal electrocardiograms did not lower the cesarean delivery rate.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 1996
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Changes in the PR internal-fetal heart rate relationship of the electrocardiogram during fetal compromise in chronically instrumented sheep
Article Abstract:
Changes in the heart rate and the segment of the heartbeat called the PR interval may be useful measurements in monitoring fetal distress. Heart rate and PR interval measurements were compared in 16 sheep fetuses during normal and progressively lower oxygen levels. There was a significant correlation between a changing heart rate and PR interval among 12 of the sheep fetuses. Two of the fetuses showed no observable change in the heart rate and PR interval relationship during lower oxygen levels.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 1996
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