Severe methemoglobinemia on reexposure to benzocaine

Journal of Clinical Anesthesia
C UdehS T Sum-Ping

Abstract

We report a 65-year-old male who developed severe methemoglobinemia only on reexposure to benzocaine. The patient needed two awake fiberoptic intubations for emergency surgeries. On the second exposure, the patient was septic and malnourished, and he was taking acetaminophen. He developed a methemoglobin level of 55%. Possible reasons for the methoglobinemia on reexposure are discussed in this report.

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Citations

Feb 7, 2002·Pharmacoepidemiology and Drug Safety
May 23, 2013·American Journal of Cardiovascular Drugs : Drugs, Devices, and Other Interventions·Mohammed TalebJodi Tinkel
Jan 25, 2008·Journal of Medical Case Reports·Sophie KwokJohn D Rogers
Jan 1, 2010·Local and Regional Anesthesia·Srikanth Vallurupalli
Oct 31, 2008·Journal of Pediatric Health Care : Official Publication of National Association of Pediatric Nurse Associates & Practitioners·Tsz-Yin So, Elizabeth Farrington
Apr 25, 2007·Clinical Toxicology : the Official Journal of the American Academy of Clinical Toxicology and European Association of Poisons Centres and Clinical Toxicologists·Bosco ChanChow Chun Bong
Oct 30, 2004·Clinical Chemistry·Shannon HaymondMitchell G Scott
Mar 30, 2018·International Journal of Dentistry·David Gomes de Alencar GondimAndreza Bastos Correia
Feb 7, 2021·International Journal of Molecular Sciences·Fahima KhatunIzumi Nishidate

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