Thermosoftening of Double-lumen Tube to Reduce Sore Throat

The Effect of Double-lumen Tube Thermosoftening Before Intubation to Reduce Hoarseness and Sore Throat

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01626365

Enrollment

154

Registered

2012-06-22

Start date

2012-05-31

Completion date

2012-12-31

Last updated

2012-12-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hoarseness, Sore Throat, Vocal Cord Injuries

Keywords

double-lumen tube, intubation, thermosoftening

Brief summary

The purpose of this study is to investigate the effect of double-lumen tube thermosoftening before intubation to reduce postoperative hoarseness and sore throat.

Interventions

PROCEDUREnon-thermosoftening

Intubation is performed with a double-lumen tube put into normal saline at room temperature.

PROCEDUREthermosoftening

Intubation is performed with a double lumen tube put into warm normal saline (40°C).

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 75 Years

Healthy volunteers

Inclusion criteria

* Patients undergoing thoracic surgery that require the placement of left-sided double-lumen tubes

Exclusion criteria

* Preoperative hoarseness or sore throat * History of upper airway diseases * Anticipated difficult airway * Anesthesia time longer than 6 hours

Design outcomes

Primary

Measure	Time frame
Postoperative hoarseness	up to 3 days after surgery
postoperative sore throat	up to 3 days after surgery

Secondary

Measure	Time frame
Vocal cord injuries	up to 1 day after surgery

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026