Methemoglobinemia related to topical benzocaine use: is it time to reconsider the empiric use of topical anesthesia before sedated EGD?
Gunaratnam
N T
NT
Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota 55905, USA. glenn.alexander@mayo.edu
Vazquez-Sequeiros
E
E
Gostout
C J
CJ
Alexander
G L
GL
D000287:Administration, Topical; D000368:Aged; D000772:Anesthesia, Local; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects*; D001566:Benzocaine / Q000008:administration & dosage / Q000009:adverse effects*; D016292:Procedural Sedation; D004384:Duodenoscopy; D004945:Esophagoscopy; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008708:Methemoglobinemia / Q000139:chemically induced*
D000779:Anesthetics, Local; D001566:Benzocaine