Modified Angled Tube vs. Conventional Angled Tube in Double-lumen Endotracheal Tube Intubation

Samsung Medical Center

Status: Completed

Conditions: Intubation, Intratracheal; Thoracic Surgical Procedures

Treatments: Device: Mallinckrodt endotracheal tube with a modified angle; Device: Mallinckrodt endobronchial tube with a conventional angle

Study type: Interventional

Funder types: Other

Identifiers

NCT02190032

2014-06-003-004

Details and patient eligibility

About

The investigators are trying to compare the individually modified-angled tube and the conventional-angled tube in ease of double lumen endotracheal tube insertion and the incidence of related postoperative complications.

Full description

Inserting a double lumen endotracheal tube is somewhat more difficult than a single lumen tube intubation because of its larger outer diameter and the more rigid feature. Moreover, the airway axes (oral-,pharyngeal-, and laryngotracheal axis) are not always straight under sniffing condition. Therefore, to make easy to insert a double-lumen tube and reduce the tube-related complications, we are trying to compare the individually angle-modified tube and the manufacturer-provided-angled tube.

Enrollment: 108 patients

Sex: All

Ages: 20+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Subjects undergoing thoracic surgery under one lung ventilation
• Subjects older than 20 yrs who can give written informed consent

Exclusion criteria

• Those who need rapid sequence intubation
• Those with cervical spinal disease (cervical spinal injury, rheumatoid arthritis with atlantoaxial subluxation)
• Those with oropharyngeal obstructive disease (including tumor, foreign body)
• Those who are expected prolonged intubation after surgery
• Those who are pregnant

Trial design

108 participants in 2 patient groups

Control group

Active Comparator group

Description:

Intubating a manufacturer-provided-angled double-lumen tube (=Conventional-angled group,"MallinckrodtTM endotracheal tube", Covidien)

Treatment:

Device: Mallinckrodt endobronchial tube with a conventional angle

Tube angle modification

Experimental group

Description:

The angle of the double lumen tube(MallinckrodeTM endotracheal tube) is modified individually.At sniffing position, the distal tip of the tube is placed at the patient's cricoid cartilage level and the tube is bent at the intersection point of the two airway axes (oropharyngeal axis and tracheal axis) with an angle between the two axes.

Treatment:

Device: Mallinckrodt endotracheal tube with a modified angle