A Difference in Subclavian Vein Catheterization Between Supine and Lateral Tilt Position - Stage I

Not Applicable

• Conditions: Catheterization; Posture
• Interventions: Procedure: Contralateral tilt; Procedure: Ipsilateral tilt

• Registration Number: NCT03296735
• Lead Sponsor: Seoul National University Hospital

Brief Summary

Central venous catheterization is widely used for various purposes during surgery. For central venous catheterization, subclavian vein is selected because of the relatively low risk of infection, long-term patency and low patient discomfort. The cross - sectional area of the subclavian vein is an important factor to increase success rate. Several studies have reported that the Trendelenburg position increases the cross-sectional area of the subclavian vein, and the lateral tilt position can change the cross-sectional area of the subclavian vein. However, the impact of lateral tilt position to the cross-sectional area of the subclavian vein is not clear. The ipsilateral position can increase the cross-sectional area of the subclavian vein, and the contralateral position can decrease the cross-sectional area by gravity.

In the first stage of this study, we compare the cross-sectional area of subclavian vein using ultrasonography in supine, ipsilateral, and contralateral tilt position.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2017-09-25
• Study First Submitted QC: 2017-09-25
• Study First Posted: 2017-09-28
• Status Verified: 2017-10
• Last Update Submitted: 2017-10-09
• Last Update Posted: 2017-10-11
• Study Start: 2017-10-15
• Primary Completion: 2019-07-31
• Study Completion: 2019-07-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 17

Inclusion Criteria

• the patients who receive elective neurosurgical surgery and require central venous catheter

Exclusion Criteria

• the patients who have puncture site infection
• the patients who have chemoport, pacemaker in right subclavian vein
• the patients who had received right mastectomy or right pneumonectomy
• other contraindications for subclavian venous catheterization (eg. mass, hematoma, vegetation, and anticoagulation)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Contralateral tilt	Contralateral tilt	Measuring the cross-sectional area of right subclavian vein in the 20 degree left tilting posture.
Ipsilateral tilt	Ipsilateral tilt	Measuring the cross-sectional area of right subclavian vein in the 20 degree left tilting posture.

Primary Outcome Measures

Name	Time	Method
The cross-sectional area of right subclavian vein	1 minutes after position change	The cross-sectional area of right subclavian vein