Ultrasound-Guided Vascular Puncture and Catheterization

Study Overview
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Brief Summary
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To assess and improve the safety and success rate of vascular puncture and catheterization using ultrasound-guided methods.

Detailed Description
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Investigators hypothesized that （1） various ultrasound-guided methods had different performances of vascular puncture and catheterization, (2) certain risk factors influenced safety and success rate of vascular puncture and catheterization (3) implementation of protocols could improve the performances of ultrasound-guided vascular puncture and catheterization.

Official Title
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Ultrasound-Guided Vascular Puncture and Catheterization

Conditions
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Vascular Access Complication, Ultrasound Therapy; Complications, Perioperative/Postoperative Complications, Cardiovascular Abnormalities

Intervention / Treatment
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* Behavioral: dynamic
* Behavioral: Regular-triangle


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age above 18 years old. Scheduled for selective surgery. Requirement of perioperative vascular puncture and catheterization. American standard of anesthesia level I-IV. Exclusion Criteria: Contraindication to vascular puncture or catheterization. Occlusion or thrombosis of target vessel evaluated by ultrasound. Refuse or disagreement from participants.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Supportive Care
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Dynamic<br>Keep moving the probe for needle tip visualization during the puncture procedure. | Behavioral: dynamic<br>* Use the according methods in dynamic arm descriptions.<br>|
| Placebo Comparator: Regular-triangle<br>Needle access along the hypotenuse of the regular triangle formed by the vascular depth and puncture point. | Behavioral: Regular-triangle<br>* Use the according methods in regular-triangle arm descriptions.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Successful rate without extra vascular damage | Percentages of successful catheterization without vascular damage of posterior wall. | Through study completion, an average of 1 year. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Successful rate at first attempt. | Percentage of successful catheterization at first attempt without needle withdraw. | Through study completion, an average of 1 year. | 
| Time duration of catheterization. | From beginning of needle puncture to finishing or failing catheterization. | Through study completion, an average of 1 year. | 
| Relative factors of successful catheterization without posterior wall damage. | Relationship between independent variables (gender, age, BMI, BP, depth and so on) and successful catheterization without posterior wall damage. | Through study completion, an average of 1 year. | 
| The effect of depth to the successful catheterization without posterior wall puncture. | The relationships between different depth of vascular anterior wall and successful catheterization without posterior wall puncture. | Through study completion, an average of 1 year. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ultrasonography, ultrasound-guided, vascular access, vascular catheterization, perioperative, anesthesia, cardiovascular abnormalities