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Phenothiazine-induced sleep apneas in normal infants
Pediatrics
|May 1, 1985
Summary
Phenothiazine medications like promethazine may increase apnea risk in infants. This study found promethazine use in infants led to more central and obstructive apneas, suggesting caution with CNS depressants.
Area of Science:
- Pediatric pharmacology
- Sleep medicine
- Neonatal physiology
Background:
- Sudden infant death syndrome (SIDS) is a concern linked to phenothiazine medications.
- Understanding the impact of these drugs on infant cardiorespiratory and sleep is crucial.
Purpose of the Study:
- To investigate the effects of promethazine on cardiorespiratory and sleep patterns in normal infants.
- To assess the safety of phenothiazine use in infants under one year of age.
Main Methods:
- Polygraphic recordings were conducted on four infants before and after daily administration of promethazine (1 mg/kg/day).
- Infants were monitored for six days, with sleep characteristics and cardiorespiratory events analyzed.
Main Results:
- Promethazine administration increased total sleep time and non-rapid eye movement (NREM) III sleep.
- A decrease in awakenings and body movements was observed.
- Significant increases in central apneas and episodes of obstructive apneas were noted during sleep.
Conclusions:
- Promethazine depresses arousal and respiratory control mechanisms in sleeping infants.
- Central nervous system (CNS) depressants should be avoided in infants under one year due to potential risks, including sudden death in apnea-prone infants.