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  • Title: [Evaluation of fetal well-being by vibro-acoustic stimulation test].
    Author: Sun DW, Chen XX, Gai MY.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 1994 Jun; 29(6):322-4, 380. PubMed ID: 8001402.
    Abstract:
    For monitoring of fetal well-being, non-stress test (NST) and vibro-acoustic stimulation test (VAS-T) were tested simultaneously in 295 normal pregnant women with gestational age over 36 weeks. In 130 women who delivered babies within 1 week after testing, the monitoring results were compared with the newborn's condition immediately after birth. The results showed that VAS-T improved the accuracy rate diagnosed by NST and shorten the time period required for examination. The clinical significance of 5 different wave forms of VAS-T were studied. Type I and Ib were typical reactive pattern which represented a good fetal condition. Type II, III and IV suggested that the fetus were in various degree of hypoxia. Specifically, Type III reflected the cord around the neck, and type IV was a sign of severe fetal distress and nervous system defect.
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