Ultrasound vs. Auscultation and Fiberoptic Bronchoscopy for Double-Lumen Tube Placement
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Thoracic Surgery With One-lung Ventilation. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Ultrasonographic Confirmation of Double-Lumen Endobronchial Tube Placement Compared With Auscultation and Fiberoptic Bronchoscopy in Thoracic Surgery: A Prospective Observational Study
Overview
One-lung ventilation is frequently required in thoracic surgery and is most commonly achieved using double-lumen endobronchial tubes (DLTs). Correct positioning of the DLT is crucial for effective lung isolation and patient safety. Fiberoptic bronchoscopy (FOB) is considered the gold standard for confirming DLT placement; however, it may not always be immediately available and requires specific expertise. Lung ultrasonography is a rapid, noninvasive, and bedside imaging method increasingly used in anesthesiology and critical care. This prospective observational study aims to evaluate the diagnostic performance of lung ultrasound in confirming the correct position of double-lumen endobronchial tubes in patients undergoing thoracic surgery. The results obtained from lung ultrasound will be compared with auscultation findings and fiberoptic bronchoscopy results. Fiberoptic bronchoscopy will be considered the reference standard. The sensitivity, specificity, positive predictive value, and negative predictive value of lung ultrasound and auscultation will be calculated.
Primary outcome measures
- Diagnostic accuracy of lung ultrasound for confirmation of double-lumen tube placement [Time frame: Intraoperative (immediately after DLT placement)]
Secondary outcome measures (4)
- Agreement between methods [Time frame: Intraoperative]
- Diagnostic accuracy of auscultation for confirmation of double-lumen tube placement [Time frame: Intraoperative]
- Time required to confirm correct double-lumen tube placement [Time frame: Immediately after tube placement]
- Effect of right- versus left-sided double-lumen endobronchial tubes on diagnostic performance [Time frame: ıntraoperative (immediately after DLT placement)]
Eligibility criteria
Inclusion criteria
- Age between 18 and 65 years
- Scheduled for elective thoracic surgery
- Planned one-lung ventilation
- Use of double-lumen endobronchial tube
- ASA physical status I-III
- Written informed consent obtained
Exclusion criteria
- Known airway anomalies
- Previous lung resection surgery
- Tracheostomy
- Coagulopathy
- Pleural effusion or pleural pathology that may interfere with lung ultrasound evaluation
- Chest wall deformity
- Emergency surgery
- Patients who decline participation
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Turkey (Türkiye) · 1 center
- Izmir City Hospital — Izmir
Identifiers
NCT: NCT07465510 · İŞH- AD