Measuring 'vocal cord-carina length' for left-sided double lumen tube insertion

Usefulness of predetermined depth of left-sided double lumen tube by measuring ‘vocal cord-carina length’ on chest x-ray

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

CRIS

Registry ID

KCT0006481

Enrollment

Registered

2021-08-20

Start date

2021-08-16

Completion date

Unknown

Last updated

2021-08-30

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

Conditions

None listed

Interventions

Others(Mark the ‘vocal cord-carina length’ on the left-sided double lumen tube before intubation.) : The participants are assigned to the experimental or the control group. In experimental group, the

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: - Patients undergoing surgeries requiring left-sided double lumen endotracheal tube insertion under general anesthesia - American Society of Anesthesiologist (ASA) physical status classification I, II, III - Patients aged 19 years or older

Exclusion criteria

Exclusion criteria: - When right-sided double lumen tube insertion is needed - Anatomical abnormalities in the airways such as glottis, trachea, and bronchi (congenital, tumor, etc.) - Patients who underwent general anesthesia within the prior month - body mass index over 35 kg/m2 - Mallampati classification IV in airway assessment - If difficult intubation is anticipated (history of difficult intubation, etc.) in airway assessment - Pulmonary tuberculosis, severe chronic obstructive pulmonary disease, systemic infection

Design outcomes

Primary

Measure	Time frame
Whether the left-sided double lumen tube is in the optimal position (the bronchial cuff is 5-10 mm below the carina)	—

Secondary

Measure	Time frame
The depth of tube insertion after left-sided double lumen tube intubation;The depth of the tube insertion at the optimal position;Intubation time: from the time the video laryngoscope enters the mouth until end-tidal CO2 appears on the ventilator;Confirmation time of optimal positioning of the tube using bronchoscope: from the time the bronchoscope enters the tube until the tube insertion depth is confirmed;Whether there is trachea or bronchial injury: erosion, petechiae, hemorrhage, etc.;Failure of intubation: if the endobronchial lumen cannot enter the left main bronchus after 3 attempts;Whether the tube is optimally positioned after surgical positioning;Sore throat or hoarseness	—

Measure

Time frame

The depth of tube insertion after left-sided double lumen tube intubation;The depth of the tube insertion at the optimal position;Intubation time: from the time the video laryngoscope enters the mouth until end-tidal CO2 appears on the ventilator;Confirmation time of optimal positioning of the tube using bronchoscope: from the time the bronchoscope enters the tube until the tube insertion depth is confirmed;Whether there is trachea or bronchial injury: erosion, petechiae, hemorrhage, etc.;Failure of intubation: if the endobronchial lumen cannot enter the left main bronchus after 3 attempts;Whether the tube is optimally positioned after surgical positioning;Sore throat or hoarseness

—

Countries

Korea, Republic of

Contacts

Public ContactSoo Yeon Kim

Hanyang University Seoul Hospital

zanmori@naver.com+82-2-2290-8680

Outcome results