Ultrasound Guided Axillary Venous Cannulation in Pediatrics

Study Overview
=================
Brief Summary
-----------------
The purpose of this prospective randomized study was to compare landmark-subclavian venous access to ultrasound-guided axillary venous access when performed by pediatric anesthesiologists.

Detailed Description
-----------------
Objective: Subclavian vein catheterization may cause various complications. The investigators will compare the real-time ultrasound-guided axillary venous access vs. the landmark method- subclavian venous access in pediatric paticipants. (the needle insertion point of ultrasound-guided axillary venous is axillary vein. and the needle insertion point of landmark method is infraclavicular subclavian vein) Design: Prospective randomized study. Setting: Operating room of a tertiary medical center. Interventions: The investigators will compare the ultrasound-guided axillary vein cannulation (66 paticipants) vs. the landmark method (66 pa- ticipants).

Official Title
-----------------
Real-time Ultrasound-guided Axillary Venous Catheterization in Pediatric Patients: Comparison With the Landmark Technique Subclavian Vein Catheterization

Conditions
-----------------
Ultrasound Guided Central Venous Cannulation

Intervention / Treatment
-----------------
* Device: landmark
* Device: US_Ax


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: surgery under general anesthesia require central venous catheterization Exclusion Criteria: hematoma in central vein central vein anomaly catheterization site infection

Ages Eligible for Study
-----------------
Minimum Age: 1 Month
Maximum Age: 7 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: landmark<br>landmark method_subclavian venous cannulation | Device: landmark<br> <br> |
| Active Comparator: US_Ax<br>ultrasound guided axillary venous cannulation | Device: US_Ax<br> <br> |

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 2nd access success rate |  | interval between skin penetration and removal of the needle or catheter after central line insertion, an expected average of 120 seconds | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 1st access success rate |  | interval between skin penetration and removal of the needle or catheter after central line insertion, an expected average of 120 seconds | 
| 3rd access success rate |  | interval between skin penetration and removal of the needle or catheter after central line insertion, an expected average of 120 seconds | 
| total time |  | interval between skin penetration and removal of the needle or catheter after central line insertion, an expected average of 120 seconds |