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Objective: To investigate the effect of lidocaine injection location on the success rate of ultrasound-guided radial artery catheterization in a single-center, randomized, controlled clinical trial.
Group A was randomly divided into two groups: 1% lidocaine 1 ml was injected above the artery during local anesthesia before arterial catheterization; Group B: 1ml of 1% lidocaine was injected into the right side of the artery. The proportion of subjects according to the number of PO was similar in all groups. After the screening, the scientific research personnel of each testing center will log in the random system, fill in the screening information, obtain the random number information, and distribute the corresponding scientific research drugs according to the random number. The total number of drugs is imported into the centralized random grouping system by generating random number by SAS software. The study was conducted by an evaluation researcher and a medication management researcher. Throughout the experiment, not only the subjects turned a blind eye, but also the evaluators turned a blind eye. This study set up evaluation investigators and administrative investigators. Administrative researchers were only involved in the randomization, allocation, and delivery process. Other procedures, including informed consent, screening, efficacy index and safety evaluation, and planned visits, were completed by the evaluation investigators.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Superior group of radial artery | Experimental | Injection of 1% lidocaine 1 ml above the artery |
|
| Right radial artery group | Experimental | Injection of 1% lidocaine 1 ml to the right side of the artery |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Superior radial artery | Diagnostic Test | Upper radial artery, 1 ml of lidocaine |
|
| Measure | Description | Time Frame |
|---|---|---|
| Success ratio of first radial artery puncture | What is the probability of success the first time? | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Before and after lidocaine local anesthesia, the radial artery longest diameter and shortest diameter, circumference, cross-sectional area and depth changes | In millimeters, Increase or decrease | Day 1 |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sichuan provincial Peopel'Hospital | Chengdu | Sichuan | China |
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| Right side of radial artery | Diagnostic Test | Right side of the radial artery,1ml of lidocaine |
|