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Acute amphetamine abuse. Problems during general anaesthesia for neurosurgery.
Anaesthesia
|November 1, 1979
Summary
Unsuspected acute amphetamine abuse caused severe intracranial hypertension during surgery. Anesthesia management was challenging due to altered drug responses, highlighting the impact of amphetamine use on anesthetic needs.
Area of Science:
- Anesthesiology
- Toxicology
- Neurosurgery
Background:
- Amphetamine abuse can affect anesthetic management.
- Understanding acute vs. chronic amphetamine effects on anesthesia is crucial.
Observation:
- A 22-year-old female presented for neurosurgery with unsuspected acute amphetamine intoxication.
- Intracranial hypertension developed during anesthesia.
- Anesthesia maintenance was difficult despite high doses of muscle relaxants and opioids.
Findings:
- Acute amphetamine abuse significantly alters anesthetic requirements.
- Increased doses of pancuronium and fentanyl were insufficient for adequate anesthesia.
- Intermittent positive-pressure ventilation with N2O/O2 was challenging to maintain.
Implications:
- Clinicians must consider acute amphetamine abuse in patients with difficult anesthesia.
- This case underscores the importance of detailed patient history regarding substance use.
- Further review of acute and chronic amphetamine dosage effects on anesthesia is warranted.