- 作者: 陳皙堯
- 作者服務機構: Department of Obsterics and Gynecology, College of Medicine and the Hospital, National Taiwan University
- 中文摘要: 1. FECG study, using abdominal bipolar and scalp leads, was carried out in 93pregnant women in labor from January 1966 to October 1967. The positive rate was99.8%. 2. The amplitude of the F-QRS is usually larger and clearer in scalp lead thanthat in abdominal bipolar lead. This tendency increased with the advancement ofthe fetal descent. 3. During the first stage of labor average FHR kept normal range. With theadvancement of labor decreasing tendency of FHR was becoming marked especiallyat the end of the second stage of labor. 4. During the uterine contraction bradycardia was fsequently observed. Tachy-cardia of the mother appeared at the second stage of labor. 5. At the first stage of labor FHR was eucardic in two thirds of the subjects.In the beginning of the seccnd stage, 12 out of 18 or 66.7% of the subjects showedFHR change, while at the end of the second stage the FHR change increased to 21out of 25 or 84%. 6. Among the FHR changes during the second stage of labor, 62.8% was brady-cardia, 9.3% was tachycardia and 4.6% vas bradycardia associated with tachycardia. 7. In the subjects with mild FHR change during the second stage, the newborncondition was not affected. While in those with marked FHR change 40% of thebabies was born depressed. 8. Depressed newborn and meconium passage were parallel to the FHR change.However, among the subjects of marked FHR change only 50% was associated withmeconium passage. Accrdingly FHR change is a more reliable indicator for fetaldistress than the meconium passage. 9. FHR showed marked decrease during the perineal stage. The reason wasexplained by the compression of head and cord. V-shaped and U-shaped FHR pat-tererns were illustrated with serial FECG figures.
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