An Innovative Approach for Uniblocker Intubation

Not Applicable

• Conditions: Therapeutic Procedural Complication
• Interventions: Other: The measured distance; Other: formula; Device: Fiberoptic bronchoscope

• Registration Number: NCT03392818
• Lead Sponsor: The First Hospital of Qinhuangdao

Brief Summary

To measure the distance between the upper edge of the thyroid cartilage to the upper edge of the sternum add the distance from the upper edge of the sternum to the carina was calculated according to the chest CT scans as a guide to the placement of Uniblocker without the aid of FOB.

Detailed Description

In previous study, the investigators found Chest computed tomography (CT) image can accurately predicting the optimal insertion depth of Uniblocker,however in some hospital the CT scan performed for the preoperative surgical evaluation without the vocal cords slices. If a more extensive CT scan was needed for obtaining a more reliable image of the vocal cords,the additional exposure dose would be a major disadvantage of the method.So the investigators measure the distance between the upper edge of the thyroid cartilage to the upper edge of the sternum add the distance from the upper edge of the sternum to the carina calculated according to the chest CT scans as a guide to the placement of Uniblocker without the aid of FOB.

Study Timeline

• Status Verified: 2017-12
• Study First Submitted: 2017-12-24
• Study First Submitted QC: 2018-01-05
• Last Update Submitted: 2018-01-06
• Study Start: 2018-01-07
• Study First Posted: 2018-01-08
• Last Update Posted: 2018-01-09
• Primary Completion: 2018-05
• Study Completion: 2018-06

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 90

Inclusion Criteria

1. Adult patients undergoing left side thoracic surgery
2. The thoracic surgery requiring a Uniblocker for one-lung ventilation

Exclusion Criteria

1. Age>70 or <18 years
2. ASA classifications >III
3. BMI >35kg/m2
4. Modified Mallampati classification ≥III
5. Thoracic surgery within the last one month
6. Severe cardiopulmonary disease

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
The measured distance	The measured distance	To measure the distance between the upper edge of the thyroid cartilage to the upper edge of the sternum add the distance from the upper edge of the sternum to the carina calculated according to the chest CT scans as a guide to the placement of Uniblocker without the aid of FOB.
formula	formula	Calculate the depth of intubation according to the formula of 0.1977\* patient's height - 4.2423
Fiberoptic bronchoscope	Fiberoptic bronchoscope	intubation of Uniblocker under the Under the guidance of Fiberoptic bronchoscope

Primary Outcome Measures

Name	Time	Method
The intubation time	1 year	The intubation time defined as the time from the anesthesiologist inserted the video laryngoscope between the teeth of patients until Uniblocker at the optimal position and this was done using a stopwatch.

Trial Locations

Locations (1)

The first hospital of Qinhuangdao; 🇨🇳 Qinhuangdao, Hebei, China