An Innovative Approach for Uniblocker Intubation

The First Hospital of Qinhuangdao

Status: Unknown

Conditions: Therapeutic Procedural Complication

Treatments: Other: formula; Device: Fiberoptic bronchoscope; Other: The measured distance

Study type: Interventional

Funder types: Other

Identifiers

NCT03392818

966169

Details and patient eligibility

About

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.

Full 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.

Enrollment: 90 estimated patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Factorial Assignment

Masking: Triple Blind

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90 participants in 3 patient groups

formula

Experimental group

Description:

Calculate the depth of intubation according to the formula of 0.1977\* patient's height - 4.2423

Treatment:

Other: formula

Fiberoptic bronchoscope

Experimental group

Description:

intubation of Uniblocker under the Under the guidance of Fiberoptic bronchoscope

Treatment:

Device: Fiberoptic bronchoscope

The measured distance

Experimental group

Description:

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.

Treatment:

Other: The measured distance