Effect of prophylactic benzydamine hydrochloride on postoperative sore throat and hoarseness after tracheal intubation using a double-lumen endobronchial tube: a randomized controlled trial L'effet d'une prophylaxie de chlorhydrate de benzydamine sur les maux de gorge et l'enrouement postoperatoires apres une intubation tracheale al'aide d'une sonde endobronchique a` double lumiere: une etude randomisee controlee

Purpose We evaluated the prophylactic effect of benzydamine hydrochloride (BH) spray on postoperative sore throat and hoarseness secondary to intubation with a double-lumen endobronchial tube (DLT). Methods Ninety-two adult patients undergoing thoracic surgery using DLT intubation were studied. The DLT cuff and oropharyngeal cavity were sprayed with normal saline (Group S; n = 46) or BH (Group BH; n = 46) prior to