Asia-Oceania journal of obstetrics and gynaecology / AOFOG
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Asia Oceania J Obstet Gynaecol · Dec 1990
Comparative StudySilastic cup vacuum extractor or forceps: a comparative study.
A retrospective analysis over a 2-year period was carried out to compare the limitations in the use of the Silastic Cup vacuum extractor and forceps as the preferred instrument for operative vaginal delivery. Whilst the use of the vacuum extractor was associated with less maternal morbidity (54.9% episiotomy rate; 20.9% nil analgesia) and comparable neonatal problems, an increased failure rate (6.5%) was demonstrated in comparison to forceps delivery (0.7% failed vaginal delivery rate). A comparison of their use for rotational vaginal delivery failed to reveal any significant difference in maternal or neonatal outcome apart from an increased failure rate (30%) to complete vaginal delivery after application of the vacuum extractor. It is concluded that the vacuum extractor is a comparable instrument for midcavity or lift-out instrumental delivery but Kielland's forceps may still be a more appropriate instrument for rotational vaginal delivery.
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Asia Oceania J Obstet Gynaecol · Dec 1989
The development of sleep-wakefulness cycle and its correlation to other behavior in the human fetus.
Fetal rapid eye movements (REM), breathing movements (BM), and trunk movements (TM) were observed through the use of 3 ultrasonic real-time scanners. Each movement was recorded with the event marker and quantitatively analyzed in relation to the development of the sleep-wakefulness cycle by a computer-assisted system. The results were as follows: The number of REM increased with gestational age. ⋯ The relationship between REM and BM increased with gestational age. The occurrence of each TM has no correlation to that of REM when it was analyzed in short-term units, but the incidence of TM was high in REM periods. These results demonstrate the course of the development of sleep-wakefulness cycle in human fetuses.
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Asia Oceania J Obstet Gynaecol · Sep 1989
Comparative StudyAnalgesia and anesthesia during labor in Japan and developed countries.
Analgesia and anesthesia during labor were surveyed by the use of a questionnaire sent to university hospitals in USA, UK, France, FRG, GDR, Japan, and also other types of institutions in Japan. A rather negative attitude toward analgesia and anesthesia during labor was encountered less often in Japan than in USA, UK, and FRG, but the actual frequency of use was much less in Japan. Narcotics and/or tranquilizers were most frequently used in the first stage of labor. ⋯ Lumbar epidural anesthesia or some other regional block was the method of choice in the second stage except in UK where inhalation of nitrous oxide was the method of choice at 48% of the institutions. Augmentation of labor was much more frequent and the number of annual deliveries were much less in Japan. Higher C-section rate was seen in USA.