Trial reportBMC medical education2026
Educational benefits of pre-class videos and viewing perspectives on ultrasound-guided central venous catheterization training: a prospective randomized controlled trial.
Trial report in BMC medical education, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06947733 (Analysis of the Effect of Pre-course Videos on Improving Clinical Skills in Emergency Ultrasound Training), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Analysis of the Effect of Pre-course Videos on Improving Clinical Skills in Emergency Ultrasound Training
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
backgroundTraining in ultrasound-guided central venous catheterization (CVC) is constrained by limited hands-on opportunities and instructor availability. Pre-class instructional videos may improve procedural learning; however, the optimal filming perspective—first-person point-of-view (POV) versus face-to-face (F-t-F) side-view—remains unascertained. We compared the effects of video perspectives on ultrasound-guided CVC training-related skill acquisition.
methodsThis prospective, randomized, single-blind study included 70 postgraduate physicians in pre-class POV video (n = 23), pre-class F-t-F side-view video (n = 23), or control (no pre-class video, n = 24) groups. Participants completed pre-training assessments, one-on-one hands-on training, and post-training evaluations, with outcomes including a 17-item checklist score (0–34, Competency-Based Assessment Tool for Ultrasound-Guided Central Venous Catheter Placement), global rating (1–10), completion time, and self-rated confidence analyzed with the Kruskal–Wallis and Mann–Whitney U tests with Bonferroni correction.
resultsBaseline demographics were comparable. The POV group showed the highest pre-training median global rating score, which significantly exceeded that of other groups (p < 0.001). Both video groups had significantly higher pre-training self-rated confidence than controls (p = 0.01), without differences between POV and F-t-F (p = 0.553). Overall time to pre-training assessment completion did not differ significantly among groups in the primary analysis; post-hoc as-treated analysis showed significantly faster task completion in POV compared with the control group (p = 0.007).
conclusionPre-training videos significantly enhanced training efficiency. POV and F-t-F videos improved learners’ competency and confidence than in controls. Overall procedural efficiency did not differ significantly between POV and F-t-F; the POV group achieved higher global rating scores, suggesting a potential advantage of the first-person perspective.
trial registrationThe trial was retrospectively registered at ClinicalTrials.gov (Identifier: NCT06947733, registered on 23 April 2025).
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