title: Methemoglobinemia related to topical benzocaine use: is it time to reconsider the empiric use of topical anesthesia before sedated EGD?
authors.affiliation: Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota 55905, USA. glenn.alexander@mayo.edu
authors.forename: N T
authors.initials: NT
authors.lastname: Gunaratnam
authors.forename: E
authors.initials: E
authors.lastname: Vazquez-Sequeiros
authors.forename: C J
authors.initials: CJ
authors.lastname: Gostout
authors.forename: G L
authors.initials: GL
authors.lastname: Alexander
mesh_terms: 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*
chemical_list: D000779:Anesthetics, Local; D001566:Benzocaine