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Massed Training is Logistically Superior to Distributed Training in Acquiring Basic Endovascular Skills
Gilles Soenens1, Jonathan Lawaetz2, Bart Doyen1
1Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium.
Summary
The massed training format of PROSPECT (PROficiency based StePwise Endovascular Curricular Training) reduced dropout rates compared to the distributed format. Both formats effectively improved endovascular skills and retention over 12 months.
Area of Science:
- Medical Education
- Surgical Training
- Endovascular Procedures
Background:
- The PROficiency based StePwise Endovascular Curricular Training (PROSPECT) program enhances endovascular skills but faces low adherence in real-world settings.
- This study compares the original distributed training format with a new massed training format to improve adherence and evaluate long-term skill retention.
Purpose of the Study:
- To compare the effectiveness and long-term skill retention of a distributed versus a massed training format for PROSPECT.
- To identify optimal training formats for standardized endovascular skill acquisition in surgical curricula.
Main Methods:
- A multicentre prospective study comparing distributed D-PROSPECT with massed C-PROSPECT formats.
- Cognitive skills assessed via MCQ; technical skills evaluated using Global Rating Scale (GRS), examiner's checklist, and simulator metrics.
- Data collected pre- and post-training, with follow-ups at 3, 6, and 12 months.
Main Results:
- C-PROSPECT had a 0% dropout rate versus 41% for D-PROSPECT, with similar numbers of participants (21 vs. 22).
- Both formats significantly improved MCQ, GRS, checklist, and simulation scores (p < .001).
- No significant differences in performance or retention were observed between the massed and distributed groups.
Conclusions:
- PROSPECT, in either massed or distributed format, significantly enhances simulated endovascular performance.
- The massed training format may be preferable for reducing dropout rates in standardized endovascular skills training.
- Both formats ensure comparable long-term skill retention for basic endovascular competencies.

