Affiliation:
1. Departments of Women’s and Children’s Health, and
2. School of Midwifery, Otago Polytechnic, Dunedin, New Zealand
3. Preventive and Social Medicine, University of Otago, Dunedin, New Zealand; and
Abstract
OBJECTIVES:
To identify desaturation events (arterial oxygen saturation [Sao2] <90%) and rebreathing events (inspired carbon dioxide (CO2) >3%), in bed-sharing (BS) versus cot-sleeping (CS) infants.
METHODS:
Forty healthy, term infants, aged 0 to 6 months who regularly bed-shared with at least 1 parent >5 hours per night and 40 age-matched CS infants were recruited. Overnight parent and infant behavior (via infrared video), Sao2, inspired CO2 around the infant’s face, and body temperature were recorded during sleep at home.
RESULTS:
Desaturation events were more common in BS infants (risk ratio = 2.17 [95% confidence interval: 1.75 to 2.69]), associated partly with the warmer microenvironment during BS. More than 70% of desaturations in both groups were preceded by central apnea of 5 to 10 seconds with no accompanying bradycardia, usually in active sleep. Apnea >15 seconds was rare (BS infants: 3 events; CS infants: 6 events), as was desaturation <80% (BS infants: 3 events; CS infants: 4 events). Eighty episodes of rebreathing were identified from 22 BS infants and 1 CS infant, almost all preceded by head covering. During rebreathing, Sao2 was maintained at the baseline of 97.6%.
CONCLUSIONS:
BS infants experienced more oxygen desaturations preceded by central apnea, partly related to the warmer microenvironment. Rebreathing occurred mainly during bed-sharing. Infants were at low risk of sudden infant death syndrome and maintained normal oxygenation. The effect of repeated exposure to oxygen desaturation in vulnerable infants is unknown as is the ability of vulnerable infants to respond effectively to rebreathing caused by head covering.
Publisher
American Academy of Pediatrics (AAP)
Subject
Pediatrics, Perinatology and Child Health
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