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Techniques for Lung Deflation With Arndt® Blocker

NCT02030795 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 58

Last updated 2015-04-06

No results posted yet for this study

Summary

The use of wire-guided Arndt® endobronchial blocker does not gain widespread acceptance during video-assisted thoracoscopy (VATS) because it takes longer time to collapse the operative lung especially in patients with chronic obstructive lung disease (COPD). The use of a disconnection technique for deflation of Arndt® blocker had a comparable degree of lung collapse with the use of double-lumen tubes. However, it carries a risk of blood or infected secretions contaminating the dependent lung.

We hypothesise that the use bronchial suction of through a barrel part of a 1-mL insulin syringe attached to the suction port of the bronchial blocker would be associated with comparable time to optimum lung collapse with the disconnection technique.

After ethical approval, 58 patients with spontaneous pneumothorax scheduled for elective VATS using Arndt blocker® for lung separation will be included in this prospective, randomized, double-blind study.

Patients will be randomly assigned to deflate the blocker with either disconnecting the endotracheal tube from the ventilator for 60 s. prior to inflation of the bronchial blocker allowing both lungs to collapse, or attaching -20 cm H2O of suction to the suction port of the blocker through the barrel part of a 1-mL insulin syringe (n = 29 for each group).

Conditions

  • Spontaneous Pneumothorax

Interventions

OTHER

Disconnection group

The blocker cuff was deflated, the single lumen tube was disconnected from the ventilator for 60 s allowing the surgical lung to collapse, then the cuff was re-inflated with the same amount of air as determined previously and the ventilator was reconnected to the single lumen tube

OTHER

Bronchial Suction group

The barrel part of a 1-mL insulin syringe was attached to the suction port of the bronchial blocker, and connected to -30 cm H2O of suction.

Sponsors & Collaborators

  • Imam Abdulrahman Bin Faisal University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-01-31
Primary Completion
2014-03-31
Completion
2014-04-30

Countries

  • Saudi Arabia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02030795 on ClinicalTrials.gov