The effects of water lubrication of tracheal tubes on post-intubation airway complications: study protocol for a randomized controlled trial

Cited 0 time in Web of Science Cited 0 time in Scopus
Kim, Eugene; Yang, Seong Mi; Yoon, So Jeong; Bahk, Jae-Hyon; Seo, Jeong-Hwa
Issue Date
BioMed Central
Trials, 17(1):562
Airway managementAnesthesiaGeneralIntratrachealIntubationLubricationWater
Water is known to have lubricating properties, thus it is used for lubrication of tracheal tubes to reduce airway injuries caused by intubation. However, there is no definite evidence to substantiate the beneficial effects of lubricating tracheal tubes using water for attenuating airway injuries. Moreover, the lubrication pretreatment may cause contamination of the tube, leading to respiratory infections. Therefore, this trial aims to assess whether no pretreatment of tracheal tubes does not increase post-intubation airway complications as compared with water lubrication of tubes.

This is a prospective, double-blind, single-center, parallel-arm, noninferiority, randomized controlled trial to be conducted in participants aged 20–80 years who are undergoing elective surgery under general anesthesia with orotracheal intubation. Participants are randomly assigned into one of two groups depending on whether intubation is performed using a tracheal tube lubricated with water (n = 150) or without any pretreatment (n = 150). The primary outcome is the incidence of sore throat at 0, 2, 4, and 24 h after surgery, which is analyzed with a noninferiority test. The secondary outcomes are the incidence and severity of postoperative hoarseness, oropharyngeal injuries, and respiratory infections.

Because we hypothesized that lubricating tracheal tubes using water has no advantage in reducing airway injuries associated with intubation, we will compare the incidence of sore throat, which is the most common complaint after intubation, in a noninferiority manner. This is the first randomized controlled trial to investigate the possibly beneficial or harmful effects of lubricating tracheal tubes using water before intubation. We expect that this trial will provide useful evidence to formulate a protocol for preparing tracheal tubes before intubation.

Trial registration
This trial is registered at on 1 July 2015 (NCT02492646)
Files in This Item:
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Anesthesiology and Pain Medicine (마취통증의학전공)Journal Papers (저널논문_마취통증의학전공)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.