The validity of sequential auscultation for the positioning of double-lumen endobronchial tubes: a prospective, randomized, single blind, controlled trial

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000034083

Enrollment

Unknown

Registered

2020-06-23

Start date

2020-06-27

Completion date

Unknown

Last updated

2020-06-29

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

Conditions

Anesthesia for Thoracic Surgery

Interventions

Group of modified method for the positioning of left double-lumen endobronchial tubes:Sequential auscultation would be used for the positioning of left double-lumen endobronchial tubes

Group of traditional method for the positioning of left double-lumen endobronchial tubes:Traditional auscultation would be used for the positioning of left double-lumen endobronchial tubes

Group of traditional method for the positioning of right double-lumen endobronchial tubes:Traditional auscultation would be used for the positioning of right double-lumen endobronchial tubes

Group of modified method for the positioning of right double-lumen endobronchial tubes:Sequential auscultation would be used for the positioning of right double-lumen endobronchial tubes

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Thoracic surgery patients would be recruited from Guangdong Second Provincial General Hospital. To be eligible,patiens must be scheduled for an intubated thoracic surgery on June 28, 2020 to June 28, 2022 and would receive lung isolation technique, be 18 to 75 years old and ASA I-III.Patients would be approached for consent during their pre-operative visit.

Exclusion criteria

Exclusion criteria: (1) Patients with pneumonia, emphysema, pulmonary edema or pneumothorax. (2) Patients have undergone anatomical lobectomy. (3) Patients whose preoperative imaging indicate severe stenosis or displacement of trachea or bronchus. (4) Patients with COPD and bronchiectasis. (5) Morbidly obese patients (BMI >= 35 Kg/m2). (6) Patients with extremely unclear respiratory sound in bilateral lungs. (7) Patients are expected to have difficult airway.

Design outcomes

Primary

Measure	Time frame
The success rate of positioning;	—

Secondary

Measure	Time frame
The time from the start of intubation to the end of positioning;The initial depth of insertion of a DLT;The depth of exiting a DLT in trachea.;The depth of exiting a DLT in bronchi;The final depth of insertion of a DLT;	—

Countries

China

Contacts

Public ContactHui Zhang

Guangdong Second Provincial General Hospital

yeeace@126.com+86 13719136792

Outcome results

None listed

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