Pneumothorax
Conditions
Brief summary
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
Interventions
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.
Sponsors
Ajou University School of Medicine
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
20 Years to 60 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Lung deflation score | 10 min after inflation of balloon | verbal analog scale(0=no deflation, 10=complete deflation) |
Secondary
| 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 |
Outcome results
None listed