About this trial
This study aims to investigate medical students' mastery of radial artery puncture and catheterization skills guided by the midline on ultrasound when using scenario simulation combined with intermittent training, and to compare this approach with traditional teaching methods.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
None
Disqualifiers
None
Trial design
Parallel
Treatments tested in this trial
Intermittent Retraining
Other interventionThrough basic skills training and testing, it was confirmed that all trainees had mastered the procedural steps for radial artery puncture and catheterization guided by ultrasound midline imaging. Testing also validated the students' proficiency in performing this procedure. The intermittent retraining group underwent repeated training at fixed intervals, performing the same tasks daily on days 3, 7, and 14.
Non-interval retraining
Other interventionThrough basic skills training and testing, it was confirmed that all trainees had mastered the procedural steps for radial artery puncture and catheterization guided by ultrasound midline imaging. Testing also validated the students' proficiency in performing this procedure. The non-intermittent retraining group did not repeat the same tasks.
Treatment groups
Trial outcomes
Primary outcomes
First Attempt Catheterization Success Rate
The percentage of cases where the operator successfully punctures the target vessel (specifically the radial artery in my study) on the first attempt and advances the catheter to the desired position. This process requires no additional puncture attempts, catheter adjustments, or encounters procedural failure (such as unsuccessful vessel entry, guidewire/catheter entanglement, abnormal positioning, or immediate complications like hematoma formation).
First-Attempt Radial Artery Catheterization Success Rate
First-Attempt Success Rate of Radial Artery Catheterization Guided by Ultrasound Median Line
Incidence of complications
Incidence of Complications in Radial Artery Puncture and Catheterization Guided by Ultrasound Midline
Locations
Sponsors and contacts
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