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Sudden asystole during craniotomy: unrecognized phenytoin toxicity
J M Berry1, A Kowalski, S A Fletcher
1Department of Anesthesiology, University of Texas-Houston Health Science Center, USA.
Journal of Neurosurgical Anesthesiology
|January 16, 1999
Summary
A patient experienced intraoperative sinus arrest during brain surgery due to a rapid phenytoin infusion. This cardiac event was successfully managed with standard resuscitation, highlighting phenytoin
Area of Science:
- Neurosurgery
- Cardiology
- Pharmacology
Background:
- Subarachnoid hemorrhage necessitates neurosurgical intervention.
- Craniotomy for aneurysm clipping is a complex procedure.
- Intraoperative cardiac events can complicate neurosurgery.
Observation:
- A healthy patient developed sinus arrest during craniotomy.
- The event occurred after a rapid infusion of 1500 mg phenytoin.
- Standard resuscitative measures were effective in treatment.
Findings:
- Phenytoin administration can precipitate intraoperative sinus arrest.
- Differential diagnosis of cardiac arrest during surgery is crucial.
- Phenytoin exhibits mechanisms relevant to cerebral protection.
Implications:
- Awareness of phenytoin's cardiac effects is vital in neuroanesthesia.
- Prompt recognition and management of cardiac events are essential.
- Further research into phenytoin's role in neuroprotection is warranted.