About this trial
The goal of this clinical trial is to evaluate the efficacy of bronchial blockers and double-lumen tubes in achieving one-lung ventilation in obese patients undergoing lung resections. The primary question it aims to answer is:
• Is intraoperative hypoxia significantly different depending on the device used?
Researchers will compare the use of bronchial blockers and double-lumen tubes to assess differences in efficacy and safety.
Participants will not be required to perform any tasks.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
BMI ≥ 30 kg/m2
Diagnostic or clinical suspicion of lung cancer
Lung resection surgery (lobectomy, segmentectomy or wedge resection) by VATS or thoracotomy, requiring one-lung ventilation.
Use of bronchial blocker or double-lumen tube for one-lung ventilation.
Disqualifiers
Patients with evident anatomic alterations, in which double-lumen tubes may be contraindicated.
Emergency surgeries.
Trial design
Parallel
Treatments tested in this trial
One-Lung ventilation with Double-Lumen Tube
DeviceTo achieve the required one-lung ventilation during lung resection, patients will be managed with a double-lumen tube.
One-Lung Ventilation with Bronchial Blocker
DeviceTo achieve the required one-lung ventilation during lung resection, patients will be managed with a bronchial blocker.
Treatment groups
Trial outcomes
Primary outcomes
Hypoxia
While its definition is somewhat arbitrary, the investigators consider hypoxia as SpO₂ \< 90%, while maintaining FiO₂ = 1.0, in accordance to our hospital guidelines.
Secondary outcomes
Lung collapse
Assessed by the anaesthesiologist as: Excellent: complete lung collapse, perfect surgical visualization; Good: complete collapse, residual air; Poor: non-achieved collapse or partial collapse that interfered with surgical visualization.
Surgical visualization
Assessed by the thoracic surgeon as excellent, good or poor.
Insertion time of the ventilation device
Time in minutes from the beginning of ventilation device insertion until correct placement is confirmed.
Repositioning of the ventilation device
Number of repositioning attempts of the ventilation device.
Other outcomes
Sex
Male or female.
Age
Age at the time of the procedure (years).
Obesity
Categorized as: Grade I (BMI: 30-34.9); Grade II (BMI: 35-35.9); Grade III (BMI≥ 40).
Charlson Comorbidity Index
The Charlson Comorbidity Index (CCI) is a validated scoring system used to predict 10-year mortality by assigning weighted scores to 19 comorbid conditions, based on their severity. The total score reflects both the number and seriousness of comorbid diseases, with higher scores indicating a greater comorbidity burden. Values range from 0 to 33.
Sponsors and contacts
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Paulo Andrés Cano Jiménez
Lead sponsor
Hospital Son Espases
Sponsor institution