Methemoglobinemia due to topical pharyngeal anesthesia during endoscopic procedures
نویسنده
چکیده
Acquired methemoglobinemia is a known complication of topical anesthesia during endoscopic procedures. Benzocaine has been implicated in a majority of cases and has been removed from some hospital formularies. However, a lot of uncertainty exists about the risk factors for this uncommon complication. This review attempts to summarize the current knowledge of this condition and describe known risk factors. Anesthetic and patient-specific risk factors are described along with some hypothetical procedure-related factors. Clinicians should identify patients who are at high risk and apply appropriate postprocedure screening. Prospective studies are needed to further our knowledge and improve patient safety.
منابع مشابه
Risk of acquired methemoglobinemia with different topical anesthetics during endoscopic procedures
INTRODUCTION Methemoglobinemia is a recognized complication of the use of topical anesthetic sprays. The true scope of the problem or the risk with different topical anesthetic sprays and endoscopic procedures is unknown. METHODS We retrospectively identified all cases of methemoglobinemia that occurred in a university affiliated community hospital from 2001 to 2007. RESULTS Eleven cases of...
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