Intrapartum vibrator acoustic stimulation of the human fetus during episodes of decreased heart rate variability
| Autor: | Oded Langer, Denise A. Guidetti, Jeffrey J. Braverman, Michael Y. Divon, Irwin R. Merkatz |
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| Rok vydání: | 1987 |
| Předmět: |
medicine.medical_specialty
Fetal Heart Rate Variability Stimulation Vibration Pregnancy Internal medicine Heart rate Humans Medicine Fetal head Fetal Monitoring Fetal Movement Fetus Labor Obstetric business.industry Ultrasound Obstetrics and Gynecology Body movement Heart Rate Fetal medicine.disease Endocrinology Acoustic Stimulation embryonic structures Cardiology Female business |
| Zdroj: | American Journal of Obstetrics and Gynecology. 157:1355-1358 |
| ISSN: | 0002-9378 |
| DOI: | 10.1016/s0002-9378(87)80223-5 |
| Popis: | The effects of intrapartum vibratory acoustic stimulation during periods of decreased fetal heart rate variability were studied in 25 healthy term fetuses. Fetal monitoring and real-time ultrasound scanning were used simultaneously to detect fetal response. Vibratory acoustic stimulation was provided by an artificial larynx generating a signal at 85 dB and 85 Hz. This stimulus was applied for 5 seconds on the maternal abdomen over the fetal head after a 20-minute period of decreased fetal heart rate variability. All fetuses reacted with an immediate fetal heart rate acceleration of at least 10 bpm (range: 10 to 35 bpm, mean +/- SD = 18.4 +/- 7.0), and 19 fetuses also had sudden fetal body movement. A deceleration of the fetal heart rate after the initial acceleration was observed in nine fetuses (range: 15 to 70 bpm, mean +/- SD = 45.5 +/- 16.5). The implications of these findings are discussed in relation to the possible use of fetal vibratory acoustic stimulation for intrapartum surveillance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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