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

Not Applicable

Completed

• Conditions: Thoracic Surgery
• Interventions: Procedure: Pressure difference

• Registration Number: NCT01533012
• Lead Sponsor: Yonsei University

Brief Summary

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.

Detailed 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.

Study Timeline

• Study Start: 2012-02-01
• Study First Submitted: 2012-02-07
• Study First Submitted QC: 2012-02-14
• Study First Posted: 2012-02-15
• Primary Completion: 2012-10-25
• Study Completion: 2012-10-25
• Status Verified: 2019-01
• Last Update Submitted: 2019-01-08
• Last Update Posted: 2019-01-10

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 104

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)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
Pressure difference	Pressure difference	Peak inspiratory pressures difference between two lungs

Primary Outcome Measures

Name	Time	Method
Fiberoptic bronchoscopy view	within 5 min after intubation	1. aucsultation under manual ventilation -\> fiberopric bronchoscopy view check; 2. peak inspiratory pressure difference under mechanical ventilation -\> fiberoptic bronchoscopy view check

Secondary Outcome Measures

Name	Time	Method
depth of double lumen tube	within 5 min after checking fiberopitics	1. aucsultation under manual ventilation -\> A depth of DLT (incisor); 2. peak inspiratory pressure difference under mechanical ventilation -\> A depth of DLT (incisor)

Trial Locations

Locations (1)

Department of Anesthesiology and Pain Medicine , Anesthesia and Pain Research Institute, Yonsei University College of Medicine; 🇰🇷 Seoul, Korea, Republic of