An interventional study of 3D Airway Reconstruction-Guided Double-Lumen Tube Intubation and Gender and Height-Based Double-Lumen Tube Selection in Pulmonary Nodules, sponsored by Peking Union Medical College Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-02.
Sponsored by Peking Union Medical College Hospital · Not applicable, Interventional, and Treatment
This is a very safe and beneficial clinical study. We hope to obtain near-real airway anatomical parameters of patients before surgery through airway three-dimensional reconstruction technology, to assist anesthesiologists in matching the most suitable double-lumen bronchial tube size for each patient, thereby reducing the rate of intubation failure and the occurrence of perioperative adverse events to a certain extent.
99 studies on the registry are indexed under Multiple Pulmonary Nodules; 42 are open to participants now.
This study's planned enrollment of 174 is above the median of 97 across 46 interventional studies indexed under Multiple Pulmonary Nodules.
Browse Multiple Pulmonary Nodules studies →Peking Union Medical College Hospital is the lead sponsor of 1,155 studies on the registry; 475 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
COPD
Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Procedure: 3D Airway Reconstruction-Guided Double-Lumen Tube Intubation
Procedure: Gender and Height-Based Double-Lumen Tube Selection
Patients in this group will undergo preoperative chest CT scanning. The DICOM data will be imported into reconstruction software to create a 3D model of the trachea and bronchi. The diameter of the trachea, left and right main bronchus will be measured on the 3D model to select the appropriate size of the double-lumen tube (DLT). The 3D model can also provide suggestions on the depth of intubation and the bifurcation angle of the bronchus. During anesthesia induction, the selected DLT will be inserted based on the measurements derived from the 3D model.
Patients in this group will undergo DLT intubation guided by conventional clinical experience. The DLT size will be selected based on the patient's gender and height according to standard clinical formulas or empirical rules. No preoperative 3D airway reconstruction will be performed for tube sizing.
Success rate of first intubation without the use of fiberoptic bronchoscope
The success rate of first intubation without using a fiberoptic bronchoscope is defined as follows: if no adjustment or only minor adjustment of less than 5mm is required after fiberoptic bronchoscopy, and any of the following criteria is met, it is considered unsuccessful: ① difficult insertion, requiring a change in the size of the double-lumen tube or other methods of pulmonary isolation; ② insertion into the opposite main bronchus; ③ bronchial cuff protruding into the carina (more than 50% of the cuff); ④ the edge of the bronchial cuff cuff is not visible at the entrance of the bronchus; ⑤ covering more than 50% of the opening of the right upper lung; ⑥ fiberoptic bronchoscopy cannot distinguish between tracheal/bronchial anatomical structures.
Time frame: Perioperative
Intubation duration
Time frame: Perioperative
The incidence of switching to a different DLT size or adopting alternative intubation techniques
Time frame: Perioperative
Intraoperative airway pressure
Airway peak pressure, plateau pressure, and compliance during supine dual lung ventilation and lateral single lung ventilation
Time frame: Perioperative
Surgeon satisfaction with lung collapse
The surgeon satisfaction scale for lung collapse is a commonly used evaluation tool in clinical trials. The scale consists of 11 numbers from 0 to 10, representing varying degrees of satisfaction among surgeons regarding the effect of lung collapse. 0 indicates "very dissatisfied", and the satisfaction level increases progressively, with 10 indicating "very satisfied".
Time frame: Perioperative
Incidence of sore throat
Time frame: Perioperative and day 1
Incidence of hoarseness
Time frame: Perioperative and day 1
Incidence of hypoxemia
Time frame: Perioperative
DLT adjustment rate under fiberoptic bronchoscopy in lateral position
Time frame: Perioperative
Plan to share: Undecided
No publications or documents are linked to this record.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
No contact was published for this record. The registry link below has the sponsor’s details.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Peking Union Medical College Hospital →