Application of Right-Sided Double-Lumen Tube Prioritizing Alignment with the Left Main Bronchial Orifice in Patients with a Short Right Main Bronchus

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2500107407

Enrollment

Unknown

Registered

2025-08-11

Start date

2025-08-19

Completion date

Unknown

Last updated

2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chest diseases

Interventions

Right-sided double-lumen endobronchial tube group (Group R):use of a right-sided double-lumen endobronchial tube use of a right-sided double-lumen endobronchial tube

Left-sided double-lumen endobronchial tube group (Group L):use of a left-sided double-lumen endobronchial tube

Eligibility

Sex/Gender

All

Age

18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Patients of any age or sex with ASA physical status I–III. 2.Scheduled for elective left thoracic surgery requiring one-lung ventilation. 3.Candidates for the "carina-to-carina" approach: on coronal CT images the distance from the tracheal carina to the first right interlobar carina (i.e., the orifice of the right upper-lobe bronchus) is <= 24 mm

Exclusion criteria

Exclusion criteria: 1.Known or anticipated difficult airway. 2.Failure of double-lumen endobronchial intubation after three attempts. 3.Endobronchial lesion within the right main bronchus. 4.Airway stenosis. 5.BMI > 28 kg/m^2 with increased peak inspiratory pressure. 6.Preoperative pulmonary function showing moderate or worse ventilatory impairment. 7.Procedures affecting the left main bronchus: left (bilateral) lung transplantation, left pneumonectomy, left sleeve lobectomy, or any other surgery compromising the left main bronchus.

Design outcomes

Primary

Measure	Time frame
peak airway pressure;	—

Secondary

Measure	Time frame
Campos score;Arterial partial pressure of oxygen (PaO2);Arterial partial pressure of carbon dioxide (PaCO?);Oxygenation index (OI);Total time required for positional adjustment under fiberoptic bronchoscopy;MAP;HR;Length of the right main bronchus;Mallampati classification;inter-incisor distance;degree of neck extension;Cormack-Lehane classification;size of the double-lumen endobronchial tube;intubation depth;number of intubation attempts;Positioning of the double-lumen tube under fiber-optic bronchoscopy;Positioning of the right upper-lobe bronchial orifice in the R group;lowest SpO2 value;Number of repositioning maneuvers performed for the double-lumen endobronchial tube;hoarseness;sore throat;foreign-body sensation in the throat;Right upper lobe atelectasis;	—

Measure

Time frame

Campos score;Arterial partial pressure of oxygen (PaO2);Arterial partial pressure of carbon dioxide (PaCO?);Oxygenation index (OI);Total time required for positional adjustment under fiberoptic bronchoscopy;MAP;HR;Length of the right main bronchus;Mallampati classification;inter-incisor distance;degree of neck extension;Cormack-Lehane classification;size of the double-lumen endobronchial tube;intubation depth;number of intubation attempts;Positioning of the double-lumen tube under fiber-optic bronchoscopy;Positioning of the right upper-lobe bronchial orifice in the R group;lowest SpO2 value;Number of repositioning maneuvers performed for the double-lumen endobronchial tube;hoarseness;sore throat;foreign-body sensation in the throat;Right upper lobe atelectasis;

—

Countries

China

Contacts

Public ContactJingdan Deng

Meizhou People's Hospital

donna@mzrmyy.com+86 137 2761 1618

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026