Detailed multigrade evaluation of fetal disorders with the quantified actocardiogram
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Kazuo Maeda
Abstract
Aims: To evaluate fetal disorders using detailed quantitative values from the actocardiogram (ACG) involving simultaneous tracing of ultrasonic Doppler fetal movement bursts and fetal heart rate (FHR).
Methods: Duration of FHR accelerations and fetal movement bursts were measured manually in 20 common fetal disorders. The severity of the fetal disorder was estimated using the FHR acceleration duration to movement burst ratio (A/B ratio) and 10–0 clinical severity ranks derived from the A/B ratio. The correlation of the A/B ratio and 1 and 5 min Apgar scores, as well as numerically expressed long-term outcomes were studied.
Results: A/B ratios were significantly correlated with the 1 and 5 min Apgar scores and the numerically evaluated long-term outcomes. Controversial cases of FHR pattern were more easily understood using the A/B ratio. The 10–0 severity derived from the A/B ratio was useful in clinical fetal studies.
Conclusion: Common fetal disorders were evaluated quantitatively and in more detail using the A/B ratio from the actocardiogram than when using common binary good or bad evaluation. The A/B ratio was useful in outcome estimation, where the prognostic capability of the A/B ratio was confirmed by significant correlation with 1 and 5 min Apgar scores and long-term outcomes of fetal disorders.
©2009 by Walter de Gruyter Berlin New York
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Articles in the same Issue
- Original articles – Obstetrics
- The effect of bilateral pelvic neurectomy on uterine and abdominal electrical and pressure activity, as measured by telemetry in conscious, unrestrained pregnant rats
- Parental mental representations during late pregnancy and early parenthood following assisted reproductive technology
- Does progesterone inhibit bacteria-stimulated interleukin-8 production by lower genital tract epithelial cells?
- Flowcytometric assessment of fetomaternal hemorrhage during external cephalic version at term
- Progesterone – induced blocking factor (PIBF) and Th1/Th2 cytokine in women with threatened spontaneous abortion
- Coagulation and fibrinolysis related cytokine imbalance in preeclampsia: the role of placental trophoblasts
- Maternal serum adiponectin multimers in preeclampsia
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- Original articles – Fetus
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- Determination of fetal heart rate reactivity from a single 20-min window of non-stress testing in compromised fetuses
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- Congress Calender
- Congress Calendar
