| Blink-startle reflex habituation in 30-34-week low-risk fetuses. | |
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MedLine Citation:
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PMID: 15841611 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate whether the blink-startle reflex (BSR) is a good marker of habituation to vibroacoustic stimulation in healthy preterm fetuses. MATERIALS AND METHODS: A total of 22 women with uncomplicated pregnancies at 30-34 weeks participated in the study. Vibroacoustic stimulus was repeatedly applied to the maternal abdomen above the fetal head for a period of 2 s every 10 s. Fetal eye tightening monitored by ultrasound within 2 s of the stimulus was considered a positive response. The habituation rate was defined as the number of stimuli applied before the fetus stopped responding to two consecutive stimuli. Results were compared using the Mann-Whitney U-test. RESULTS: All 22 fetuses showed habituation at a rate that varied from 1 to 9 (mean 4.2+/-1.8). CONCLUSION: BSR is a good marker of habituation in preterm fetuses. Further study is needed to ascertain whether abnormal BSR habituation could be a sign of fetal distress. |
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Authors:
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Carlo V Bellieni; Filiberto Severi; Catarina Bocchi; Ninetta Caparelli; Franco Bagnoli; Giuseppe Buonocore; Felice Petraglia |
Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Journal of perinatal medicine Volume: 33 ISSN: 0300-5577 ISO Abbreviation: J Perinat Med Publication Date: 2005 |
Date Detail:
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Created Date: 2005-04-21 Completed Date: 2005-05-19 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0361031 Medline TA: J Perinat Med Country: Germany |
Other Details:
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Languages: eng Pagination: 33-7 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Obstetrics and Reproductive Medicine, University of Siena, Siena, Italy. bellieni@iol.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adult Blinking / physiology* Female Fetus / physiology* Gestational Age Habituation, Psychophysiologic Humans Predictive Value of Tests Pregnancy Pregnancy Trimester, Third Reference Values Startle Reaction / physiology* Ultrasonography, Prenatal |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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