Maternal polydrug use including cocaine and postnatal infant sleep architecture: preliminary observations and implications for respiratory control and behavior
Autor: | Cynthia G. Knight, Linda B. Dalley, Jeannine L. Gingras, Jonathan B. Feibel, Andre A. Muelenaer |
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Rok vydání: | 1995 |
Předmět: |
Sleep Wake Disorders
Black People White People Cocaine Heart Rate Pregnancy Respiration Heart rate Humans Polydrug use Illicit Drugs Infant Newborn Infant Obstetrics and Gynecology Prenatal cocaine exposure Sleep in non-human animals Prenatal Exposure Delayed Effects Anesthesia Pediatrics Perinatology and Child Health Female Respiratory control Wakefulness Sleep Stages Analysis of variance Sleep Psychology |
Zdroj: | Early Human Development. 43:197-204 |
ISSN: | 0378-3782 |
DOI: | 10.1016/0378-3782(96)81867-6 |
Popis: | Twelve-hour overnight pneumocardiograms were assessed for sleep architecture and sleep efficiency in two groups of healthy term newborn infants: a group exposed prenatally to cocaine alone or in combination with other drugs and a non-exposed group. Sleep was differentiated from wakefulness by an increase in heart rate, an increase in or variation in the duration and amplitude of the respiration and increased artifacts on the heart rate channel. Quiet and active sleep were determined by the regularity or irregularity of heart rate and respiration. In a sub-set of infants, the number of arousals during active sleep was calculated. Overall significance was confirmed by ANOVA followed by paired comparisons using the Student's-test. When compared to non-exposed infants within the first week of life, infants exposed prenatally to cocaine alone or in combination with other drugs demonstrated more wakefulness and less steep (P < 0.05), more frequent arousals during active sleep (P < 0.01), and the tendency of a higher proportion of active sleep compared to quiet steep. These findings may have implications to both behavioral and respiratory control findings associated with prenatal cocaine exposure. |
Databáze: | OpenAIRE |
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