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

Completed

• Conditions: Therapeutic Procedural Complication
• Interventions: Other: Measurement; Other: Formula

• Registration Number: NCT03545737
• Lead Sponsor: The First Hospital of Qinhuangdao

Brief Summary

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

Detailed 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.

Study Timeline

• Study First Submitted: 2018-05-15
• Study First Submitted QC: 2018-06-01
• Study First Posted: 2018-06-04
• Study Start: 2018-06-15
• Primary Completion: 2018-11-21
• Study Completion: 2018-12-13
• Status Verified: 2023-02
• Last Update Submitted: 2023-02-14
• Last Update Posted: 2023-02-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

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

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Measurement	Measurement	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.
Formula	Formula	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

Primary Outcome Measures

Name	Time	Method
The incidence of the injuries of bronchi and carina	1-3days	The degree of bronchi and carina injuries: 1 clear; 2 a few petechiae; 3coalesced petechiae, hemorrhage, or ecchymosis; 4 erosion

Secondary Outcome Measures

Name	Time	Method
The incidence of dislodgement	1 day	The incidence of dislodgement after repositioning
The intubation time	1-5min	The intubation time (IT) was defined as the time from the anesthesiologist inserted the video laryngoscope between the teeth of patients until the double lumen-tube at the optimal position checked by Fiberoptic bronchoscopy

Trial Locations

Locations (1)

中国; 🇨🇳 Qinhuangdao, Hebei, China