A smaller endotracheal tube combined with intravenous lidocaine decreases post‐operative sore throat – a randomized controlled trial

Abstract

Use of smaller-sized ETT combined with i.v. lidocaine decreases the incidence and severity of POST in women undergoing thyroid surgery.

Effect of prophylactic benzydamine hydrochloride on postoperative sore throat and hoarseness after tracheal intubation using a double-lumen endobronchial tube: a randomized controlled trial

“…5,14 The incidence of postoperative sore throat and hoarseness is directly correlated with the size of the ETT. 2,15 The outer diameter of a DLT (13-14 mm for sizes 37 and 39 Fr; 12-13 mm for size 35 Fr) is larger than that of a singlelumen tracheal tube (10.7 mm for 8.0-mm internal diameter [ID]; 10.0 mm for 7.5-mm ID; 9.5 mm for 7.0-mm ID). Moreover, DLTs typically require frequent manipulation and repositioning for optimal one-lung ventilation, resulting in friction between the DLT and airway that can cause airway injuries.…”

“…[1][2][3] These adverse events, which are closely related to endotracheal tube (ETT) size, 2 may have a negative effect on patients' satisfaction and activities after surgery. 4 The double-lumen endobronchial tube (DLT) used for onelung ventilation is more likely to cause a higher incidence of postoperative hoarseness than a bronchial blocker inserted via a standard tracheal tube.…”

Nasotracheal Prolonged Safe Extubation Reduces the Need of Tracheotomy in Patients with Acute Respiratory Failure following Thyroidectomy

“…In our experience, PSE procedure, compared to the classical ARF treatments, also showed several advantages. When orotracheal reintubation is preferred, edema reversion is delayed by the presence of a large-caliber tube across the larynx and close to the vocal cords [8]. This observation explains the authors' choice, based on previous experience with translaryngeal open ventilation (TOV) [22], about the use of a smaller caliber NT tube sized between 4.5 and 5 mm ID.…”

“…complete nerve section, unilateral LRN paresis associated with laryngeal edema (venous stasis, Reinke's edema), local hemorrhage (paratracheal hematoma) directly compressing airways, tracheomalacia and laryngeal edema [5][6][7]. Also the operating position during thyroid surgery, with the neck fully extended, may cause lesions of vocal cords and tracheal walls, since the tracheal axis is inversed to the endotracheal tube [8].…”

“…Nevertheless, the compression applied by the orotracheal large size tube may cause lesions of vocal cords and tracheal walls worsening the pre-existing edema. This delays ventilation, phonation and deglutition recovery [8,11]. Extubation trials (safe extubation), generally performed using airway exchange catheters (AEC), can lead to displacement, self-extubation, aspiration, laryngotracheal or bronchial lesions or perforations, determining sometimes life-threatening complications such as hemoptysis or pneumothorax [12][13][14].…”