Pharyngeal anesthesia during sedated EGDs: is "the spray" beneficial? A meta-analysis and systematic review
Pharyngeal anesthesia is widely used as an adjunct to sedation during an upper endoscopy. This study evaluated the effectiveness of pharyngeal anesthesia in improving patient tolerance and ease of endoscope used. From a pool of 53 studies, 5 RCTs evaluated a total of 491 patients and provided interpretable data.

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