Maternal perception of sound-provoked fetal movements in low-risk pregnancies during the third trimester.
Maternal perception of fetal movements after vibroacoustic stimulation (Servox) was studied longitudinally on 456 occasions in 90 low-risk pregnancies after 28 weeks gestation until delivery. A positive response to sound stimulation, recorded as a fetal movement by the mother, occurred on 444 (97%) occasions. Of the 12 negative responses eight occurred before 33 weeks showing a positive correlation with decreasing maturity. All the pregnancies had good outcomes. The low rate of false-positive tests (3%) adds support to the suggestion that this rapid test could play a role in the assessment of fetal well-being.
Department of Obstetrics and Gynaecology, Danderyd Hospital, Sweden.
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M
Nyman
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Westgren
D000161:Acoustic Stimulation; D005260:Female; D005324:Fetal Movement; D005865:Gestational Age; D006801:Humans; D009035:Mothers / Q000523:psychology; D010465:Perception; D011247:Pregnancy / Q000523:psychology*; D011263:Pregnancy Trimester, Third; D014732:Vibration