neonatal abstinence syndrome
Also written as: NAS — Neonatal Abstinence Syndrome
Withdrawal symptoms in newborns exposed to opioids or other substances in utero, affecting anesthetic planning.
Full Definition
Neonatal abstinence syndrome (NAS) occurs when newborns experience withdrawal from substances, particularly opioids, to which they were exposed during pregnancy. Symptoms include irritability, tremors, high-pitched crying, feeding difficulties, and seizures. For anesthetic management, these infants may have altered responses to opioids and sedatives, requiring modified dosing strategies and prolonged monitoring. The syndrome significantly impacts perioperative care planning and postoperative pain management approaches.
Usage
Usage note: Document maternal substance use history when NAS is suspected to guide anesthetic management.
In Context
- "The neonate with suspected NAS required careful opioid titration during the emergency surgery." — Perioperative consultation note
- "Neonatal abstinence syndrome history was documented as a significant factor in the anesthetic plan." — Preoperative assessment