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

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...

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Bibliographic Details
Published in:Journal of clinical anesthesia 2000-03, Vol.12 (2), p.167-172
Main Authors: Kern, Kevin, Langevin, Paul B., Dunn, Ben M.
Format: Article
Language:English
Subjects:
Adult
Anesthesia, Local - adverse effects
Anesthetics, Local - adverse effects
Benzocaine
Benzocaine - adverse effects
Carbon Dioxide - blood
Enzyme Inhibitors - therapeutic use
Female
Fiber Optic Technology - instrumentation
Humans
Intubation, Intratracheal - instrumentation
lidocaine
Lidocaine - adverse effects
methemoglobinemia
Methemoglobinemia - chemically induced
Methemoglobinemia - drug therapy
Methylene Blue - therapeutic use
Oxygen - blood
pulse oximetry
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Summary: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.
ISSN:0952-8180
1873-4529
DOI:10.1016/S0952-8180(00)00113-6