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RecruitingNCT07575763CTDLT-SIZEUpdated Aug 7, 2026

CT-Guided vs Conventional DLT Sizing in Thoracic Surgery

An interventional study of CT-Guided Group (Intervention) and Conventional Group (Control) in Thoracic Surgery and One-lung Ventilation, sponsored by King Hussein Cancer Center. Recruiting at 1 site in Jordan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-07.

Sponsored by King Hussein Cancer Center · Not applicable, Interventional, and Other

From the registry’s dates

  • Started May 2026; still recruiting 5 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a prospective, randomized, single-blinded controlled trial designed to compare CT-guided versus conventional methods for selecting double-lumen tube (DLT) size in patients undergoing thoracic surgery requiring one-lung ventilation

Read the detailed description

This is a prospective, randomized, single-blinded controlled trial designed to compare CT-guided versus conventional methods for selecting double-lumen tube (DLT) size in patients undergoing thoracic surgery requiring one-lung ventilation. The study aims to evaluate whether preoperative computed tomography (CT)-based bronchial diameter measurement improves the accuracy of initial DLT size selection compared with conventional selection based on demographic parameters.

Eligible patients will be randomly assigned in a 1:1 ratio to either the CT-guided group or the conventional group.

02

Conditions studied

  • Thoracic Surgery
  • One-lung Ventilation

Keywords

  • Double-lumen tube
  • Thoracic anesthesia
  • CT-guided intubation
  • One-lung ventilation
03

In context

Lead sponsor

King Hussein Cancer Center is the lead sponsor of 23 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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.

Inclusion criteria

  1. Adult patients (≥18 years) scheduled for elective thoracic surgery requiring one-lung ventilation.
  2. Availability of preoperative thoracic CT imaging.
  3. Procedures requiring placement of a left-sided DLT.
  4. Patient who has a normal pulmonary function test.

Exclusion criteria

Exclusion Criteria:

  1. Previous tracheal surgery
  2. Patient with difficult airway whom need bronchial blocker.
  3. Emergency thoracic procedures.
  4. Incomplete intraoperative or imaging data.
  5. Patient with severe obstruction or restriction.
  6. Pediatric patient
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    CT-Guided Group

    Participants will undergo preoperative CT measurement of the bronchial diameter 10 mm distal to the carina. DLT size will be selected using manufacturer-recommended correlation charts based on CT measurements.

    Other: CT-Guided Group (Intervention)

  • Active comparator
    Conventional Group

    DLT size will be selected using standard clinical criteria based on patient demographics, according to institutional standard tables.

    Other: Conventional Group (Control)

Interventions

  • OtherCT-Guided Group (Intervention)

    Participants will undergo preoperative CT measurement of the bronchial diameter 10 mm distal to the carina. DLT size will be selected using manufacturer-recommended correlation charts based on CT measurements.

  • OtherConventional Group (Control)

    DLT size will be selected using standard clinical criteria based on patient demographics, including sex, height, and weight, according to institutional standard tables.

06

What researchers measure

Primary outcomes

  1. Successful selection of the correct DLT size on the first attempt (defined as optimal position and lung isolation without the need for tube exchange) using fiberoptic scope

    the correct placement of a double-lumen tube (DLT) on the first attempt, achieving optimal tracheobronchial position and effective lung isolation as confirmed by fiberoptic bronchoscopy, without the need for tube exchange or repositioning.

    Time frame: During the intraoperative period (at first attempt of double-lumen tube placement)

Secondary outcomes

  1. Incidence of DLT replacement

    Number of participants requiring replacement of the double-lumen tube (DLT) after initial placement due to incorrect size, malposition, or inadequate lung isolation

    Time frame: Intraoperative period (from initial DLT placement until end of surgery)

  2. Time required for successful intubation

    Time (in seconds) from insertion of the double-lumen tube into the mouth until successful tracheal placement and confirmation of correct positioning and lung isolation

    Time frame: Intraoperative period (from DLT insertion to confirmed successful placement)

  3. Frequency of intraoperative hypoxia and peak airway pressure fluctuations

    Incidence of episodes of intraoperative hypoxia and measurement of peak airway pressure fluctuations during one-lung ventilation.

    Time frame: Intraoperative period (from DLT insertion to confirmed successful placement)

  4. Blinded assessment of surgeon satisfaction (lung isolation quality)

    Surgeon satisfaction with lung isolation quality assessed using a standardized scoring scale, evaluated in a blinded manner at the end of the surgical procedure.

    Time frame: At the end of surgery (intraoperative assessment)

  5. Post-operative sore throat or airway trauma

    Incidence and severity of post-operative sore throat and/or signs of airway trauma (e.g., hoarseness, blood on suctioning, or mucosal injury if assessed) within 24 hours after extubation.

    Time frame: 24 hours post-extubation

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started May 2026 (actual). Primary completion is estimated for May 2028, 23 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
May 4, 2026
First posted
May 8, 2026
StartActual
May 15, 2026
Primary completionEst.
May 2, 2028
CompletionEst.
Aug 1, 2028
Last update
Aug 7, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07575763
Lead sponsor
King Hussein Cancer Center
Responsible party
Sponsor
First posted
May 8, 2026
Start date
May 15, 2026
Primary completion
May 2, 2028 (estimated)
Completion
Aug 1, 2028 (estimated)
Last update
Aug 7, 2026

Study contacts

Moh'D Yousef, Consultant
Contact
MY.16674@KHCC.JO
+962796420055
Ahmad Al Kharabsheh, Fellow physician
Contact
AA.15386@KHCC.JO
00962-796420055
Moh'D Yousef, Consultant, Anesthesiology
principal investigator · King Hussein Cancer Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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