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Methemoglobinemia: A Rare Entity Caused by Commonly Used Topical Anesthetic Agents, a Case Report
Benzocaine, a topical anesthetic agent, is widely used during short procedures like endoscopy, endotracheal intubation and likewise. Here we report a case of benzocaine spray-induced methemoglobinemia in an adult male patient during the transesophageal echocardiography (TEE) presenting as hypoxia an...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elmer Press
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7155844/ https://www.ncbi.nlm.nih.gov/pubmed/32300399 http://dx.doi.org/10.14740/jh325w |
Sumario: | Benzocaine, a topical anesthetic agent, is widely used during short procedures like endoscopy, endotracheal intubation and likewise. Here we report a case of benzocaine spray-induced methemoglobinemia in an adult male patient during the transesophageal echocardiography (TEE) presenting as hypoxia and improved subsequently in the next 2 h on low-dose intravenous methylene blue. Causality assessment of the adverse event was probable, and preventability assessment was unpreventable. The patient was discharged with no further complications at good health. A relevant etiopathology and managing principles are summarized in this case report such that it serves as an awareness to all medical fraternity about this unexpected yet life-threatening adverse drug reaction to an otherwise safe local anesthetic. |
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