Compare a New Method and Formula as a Guide for the Intubation of a Left-sided Double-lumen Tube

The First Hospital of Qinhuangdao

Status: Completed

Conditions: Therapeutic Procedural Complication

Treatments: Other: Formula; Other: Measurement

Study type: Observational

Funder types: Other

Identifiers

NCT03545737

98776

Details and patient eligibility

About

One-lung ventilation (OLV) is required for the most of thoracic surgery to facilitate surgical visualization by collapsing the lung. The double-lumen tube (DLT) is the commonly used device for OLV. The objective of this study was to compare the accuracy of the distances between vocal cords to carina of trachea and formula base on patient's height as a guide for the intubation of a Left-sided Double-lumen tube

Full description

In previous study, investigators found that the distances between vocal cords to carina of trachea was a useful predictive method for the intubation of a Left-sided Double-lumen tube. However in some hospitals preoperative chest CT scans not contain the vocal cords slice. So in this study investigators will compare the accuracy of the distances between the midpoint of the thyroid cartilage to suprasternal notch base on body surface measurement add the distance between suprasternal notch to carina of trachea according to chest CT and formula base on patient's height as a guide for the intubation of a Left-sided Double-lumen tube.

Enrollment: 60 patients

Sex: All

Ages: 18 to 70 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

1. Adult patients undergoing elective left side thoracic surgery
2. Requiring a Uniblocker or DLT for one-lung ventilation

Trial design

60 participants in 2 patient groups

Measurement

Description:

The distances between the midpoint of the thyroid cartilage to suprasternal notch base on body surface measurement add the distance between suprasternal notch to carina of trachea according to chest CT.

Treatment:

Other: Measurement

Formula

Description:

The formula base on patient's height as a guide for the intubation of a Left-sided Double-lumen tube. The depth of intubation = 0.1977\* height-4.2423

Treatment:

Other: Formula