Efficacy of superior laryngeal nerve block in reducing retching during transesophageal echocardiography: a randomized controlled trial.

ABSTRACT:

Background

Transesophageal echocardiography (TEE) is a vital diagnostic procedure, but retching can be provoked during TEE examination, potentially resulting in severe complications. The internal branch of the superior laryngeal nerve (iSLN) block has potential to attenuate supraglottic discomfort and inhibit the retching caused by foreign body stimulation in the larynx and glottis. Therefore, the objective of this study was to evaluate the efficacy of iSLN block in mitigating complications associated with TEE examinations and improving patient comfort.

Methods

One hundred forty-eight patients scheduled for TEE were randomized to either Group C: tetracaine syrup (1%) for oropharyngeal surface anesthesia (n = 74) or Group S: tetracaine syrup (1%) for oropharyngeal surface ane

SUBMITTER: Wang C 

PROVIDER: S-EPMC12312361 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature