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Methemoglobinemia after topical anesthesia with lidocaine and benzocaine for a difficult intubation
Journal article   Peer reviewed

Methemoglobinemia after topical anesthesia with lidocaine and benzocaine for a difficult intubation

Kevin Kern, Paul B. Langevin and Ben M. Dunn
Journal of clinical anesthesia, v 12(2), pp 167-172
2000
PMID: 10818334

Abstract

Benzocaine lidocaine methemoglobinemia pulse oximetry
Methemoglobinemia is an uncommon cause of cyanosis; however, rapid diagnosis is critical to avoid potentially fatal consequences. Several local anesthetics can precipitate methemoglobinemia in susceptible patients. This case report of acute methemoglobinemia occurred during fiberoptic intubation in an awake patient without a past medical history of adverse reactions to local anesthetics.

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Anesthesiology
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