Lung Ultrasonography vs Fiberoptic Bronchoscopy for Aiding Lung Collapse in Patient Using Double Lumen Tube

A Randomized Controlled Study Compare Lung Ultrasonography to Fiberoptic Bronchoscopy Confirming Double Lumen Tube Positioning for Thoracic Surgery.

The study contains the result from a comparison of diagnostic outcomes about lung collapse by using lung ultrasonography as a new diagnostic test compares to fiberoptic bronchoscopy as the standard test.

The study contains the result from a comparison of diagnostic outcomes about lung collapse by using lung ultrasonography as a new diagnostic test compares to fiberoptic bronchoscopy as a standard test. Both of them detect lung collapse reported as surgical grading lung collapse by the thoracic surgeons. The protocol was performed in a randomized controlled trial whether the subject was allocated to the ultrasonography group or the fiberoptic bronchoscopy group.

Inclusion Criteria:

• Adult patients, age ≥18 years old
• American Society of Anesthesiologists(ASA) physical status classification I - III
• Scheduled for elective thoracic surgery which requires One lung ventilation(OLV) with Left-sided double lumen tube

Exclusion Criteria:

• Anticipated difficult intubation or with the tracheostomy tube
• Patient with pneumothorax, pleural effusion, emphysema or past history of pleurodesis
• Patient with deranges pulmonary function test (out of forced expiration volume in 1 s, total lung capacity, forced vital capacity <50% of the predicted values)
• The patient refuses to participate.