[112] Interestingly, Orr and Jones studied 60 patients undergoing laryngoscopy and receiving pharyngeal and subglottic topical cocaine or lidocaine. Topical cocaine caused a significant increase ...

RLN damage can be assessed by laryngoscopy, in which a special light confirms that there's no movement in the vocal cords on the damaged side, or by electromyography (EMG), a test that looks at nerve ...