FETAL AND LABOR OUTCOME OF 102 POSITIVE CONTRACTION STRESS TESTS

  • 1 January 1979
    • journal article
    • research article
    • Vol. 54  (5) , 591-596
Abstract
A total of 5447 contraction [spontaneous or oxytocin-induced] stress tests (CST) were performed on 3246 high-risk patients during pregnancy. Positive tests occurred in 102 patients (3.1%), 59 of whom had primary cesarean sections. Labor was induced in 40 patients (39.2%), and 17 developed cardiotocographic evidence of fetal distress. In 2 patients labor was terminated due to prolapse of the umbilical cord, and the remaining 21 patients did not develop fetal distress. Fetal distress was more common in patients with proved intrauterine growth retardation (IUGR) and where the acceleration patterns were not noted during the CST. Only 23% of the patients delivered vaginally. The fetal loss was 100% in those infants weighing < 1000 g, but no infant weighing .gtoreq. 2500 g died. The overall perinatal mortality was 8.7%. The incidence of late decelerations during labor, low 5 min Apgar scores, and small-for-date infants was significantly higher in patients with positive stress tests than in a control group of 257 patients with negative stress tests done over the same period of time.

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