Utility of Disconnection Technique for One Lung Ventilation

Utility of Disconnection Technique for One Lung Ventilation: a Comparison of a Double Lumen Endobronchial Tube With a Bronchial Blocker

Lung isolation technique is useful for lung or heart surgeries for better visualization. Double lumen endobronchial tube and bronchial blocker are available for lung isolation. Adding disconnection technique before lung isolation is helpful to accelerate the lung deflation. However, the utility of disconnection technique has never been evaluated in comparison of double lumen tube and bronchial blocker. Therefore, the utility of disconnection technique in two different lung isolation technique, double lumen tube and bronchial blocker will be evaluated

Study Overview

• Status: Completed
• Conditions: Pneumothorax
• Intervention / Treatment: Other: disconnection technique

• Study Type: Interventional
• Enrollment (Actual): 38
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 60 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• patients scheduled for wedge resection for pneumothorax, unilateral
• ASA class I, II

Exclusion Criteria:

• know lung disease
• any kind of lung abnormality on preoperative chest x-ray
• coronary artery occlusive disease
• cerebrovascular disease
• pregnancy
• unable to understand the informed consent form

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: DLT(Double Lumen Tube) group; disconnection technique will be applied	Other: disconnection technique; Before lung isolation, the ventilator stays switched-off until the carbon dioxide on the capnogram reached to zero. Then, inflate the balloon either on the double lumen tube or on the bronchial blocker.
Experimental: BB(Bronchial Blocker) group; disconnection technique will be applied	Other: disconnection technique; Before lung isolation, the ventilator stays switched-off until the carbon dioxide on the capnogram reached to zero. Then, inflate the balloon either on the double lumen tube or on the bronchial blocker.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Lung deflation score	verbal analog scale(0=no deflation, 10=complete deflation)	10 min after inflation of balloon

Secondary Outcome Measures

Outcome Measure	Time Frame
time for initial placement	from beginning of intubation until confirmation of adequate placement with bronchoscope, approximately 5 minute
time for lung deflation	from turning the ventilator off until the carbon dioxide reach to zero on capnography, within 2 min

Collaborators and Investigators

• Sponsor: Ajou University School of Medicine
• Investigators: Principal Investigator: Go Un Roh, MD, Ajou University School of Medicine

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 2016
• Primary Completion (Actual): October 1, 2016
• Study Completion (Actual): October 1, 2016

Study Registration Dates

• First Submitted: December 27, 2015
• First Submitted That Met QC Criteria: December 30, 2015
• First Posted (Estimate): January 1, 2016

Study Record Updates

• Last Update Posted (Actual): November 6, 2018
• Last Update Submitted That Met QC Criteria: November 4, 2018
• Last Verified: November 1, 2018

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Respiratory Tract Diseases; Pleural Diseases; Pneumothorax
• Other Study ID Numbers: AJIRB-MED-DEO-15-391