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Updated: May 19, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
05:43

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow

Published on: January 13, 2017

Methemoglobinemia due to topical pharyngeal anesthesia during endoscopic procedures

Srikanth Vallurupalli1

  • 1Southern Illinois University College of Medicine, Springfield, IL, USA.

Local and Regional Anesthesia
|August 24, 2012
PubMed

Keywords:
acquired methemoglobinemiaendoscopyoxidative stresstopical anestheticstransesophageal echocardiography (TEE)

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