Initial Positioning of Left Sided Double Lumen Endobronchial Tubes Using Peak Inspiratory Pressures Difference Between Two Lungs

Yonsei University

Status: Completed

Conditions: Thoracic Surgery

Treatments: Procedure: Pressure difference

Study type: Interventional

Funder types: Other

Identifiers

NCT01533012

4-2011-0619

Details and patient eligibility

About

The purpose of this study is to investigate a performance of initial positioning of left sided double lumen endobronchial tubes using peak inspiratory pressures difference between two lungs.

Full description

If both lungs have relatively equal volumes and the double lumen tube is in a satisfactory position, peak inspiratory pressure between two lungs is similar or equal when each lumen is sequentially clamped while ventilating each lung with the same tidal volume. We are going to investigate a performance of this method by fiberoptic bronchoscopy view and depth of double lumen tube, and compare with an conventional auscultation method.

Enrollment: 104 patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• ASA physical status class I, II
• Use of double lumen tube
• Normal preoperative pulmonary function study

Exclusion criteria

• COPD
• Restrictive lung disease
• CAOD
• Unstable hemodynamic status
• Peak inspiratory pressure > 30 mm Hg (Two lung ventilation)

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Sequential Assignment

Masking: Double Blind

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104 participants in 2 patient groups

Pressure difference

Experimental group

Description:

Peak inspiratory pressures difference between two lungs

Treatment:

Procedure: Pressure difference

FOB evaluation

No Intervention group

Description:

FOB evaluation for the optimal position of tubes