What Researchers Did
Researchers investigated how well flumazenil, a drug that blocks benzodiazepines, could help diagnose and treat two patients in a coma whose cause was unknown.
What They Found
Flumazenil awakened one patient who had ingested 20.5 mg of alprazolam, allowing doctors to reliably assess their injuries. In a second patient who ingested 7.5 mg of triazolam and attempted suicide with carbon monoxide, flumazenil completely resolved the coma, making hyperbaric oxygen treatment unnecessary.
What This Means for Canadian Patients
For Canadian patients experiencing a coma of unknown cause, particularly if benzodiazepine overdose is suspected or ruled out, flumazenil could be a valuable tool for emergency physicians. It might help quickly identify the cause of coma and potentially avoid more intensive treatments like hyperbaric oxygen therapy if the coma is primarily due to benzodiazepine effects.
Canadian Relevance
This study covers carbon monoxide poisoning, which is a Health Canada-recognized indication for hyperbaric oxygen therapy.
Study Limitations
The study involved only two patients, which is a very small sample size for drawing broad conclusions about the widespread utility of flumazenil.