American journal of otolaryngology
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Randomized Controlled Trial
Oral dyclonine hydrochloride mucilage versus tetracaine spray in electronic flexible laryngoscopy: A prospective, randomized controlled trial.
Topical anesthesia is important for electronic flexible laryngoscopy (EFL) utilization. We hypothesized that oral dyclonine hydrochloride mucilage (ODHM) is superior to tetracaine spray (TS) in patients undergoing EFL examination. ⋯ A single use of ODHM seems to be superior to three doses of TS in patients undergoing EFL, specifically in procedures longer than 100seconds.