Vessel ligation training via an adaptive simulation curriculum

Abstract Background A cost-effective model for open vessel ligation is currently lacking. We hypothesized that a novel, inexpensive vessel ligation simulator can efficiently impart transferrable surgical skills to novice trainees. Materials and methods VesselBox was designed to simulate vessel ligat...

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Bibliographic Details
Published in:The Journal of surgical research 2015-06, Vol.196 (1), p.17-22
Main Authors: Hu, Yinin, MD, Goodrich, Robyn N., BA, Le, Ivy A, Brooks, Kendall D., MD, Sawyer, Robert G., MD, Smith, Philip W., MD, Schroen, Anneke T., MD, MPH, Rasmussen, Sara K., MD, PhD
Format: Article
Language:English
Subjects:
Clinical Competence
Computer Simulation
Cost-Benefit Analysis
Curriculum
Education, Medical, Undergraduate
Female
Humans
Ligation
Male
Medical
Proficiency metrics
Simulation
Student
Surgery
Surgical education
Surgical training
Vascular surgery techniques
Vascular Surgical Procedures - education
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Summary:Abstract Background A cost-effective model for open vessel ligation is currently lacking. We hypothesized that a novel, inexpensive vessel ligation simulator can efficiently impart transferrable surgical skills to novice trainees. Materials and methods VesselBox was designed to simulate vessel ligation using surgical gloves as surrogate vessels. Fourth-year medical students performed ligations using VesselBox and were evaluated by surgical faculty using the Objective Structured Assessments of Technical Skills global rating scale and a task-specific checklist. Subsequently, each student was trained using VesselBox in an adaptive practice session guided by cumulative sum. Posttesting was performed on fresh human cadavers by evaluators blinded to pretest results. Results Sixteen students completed the study. VesselBox practice sessions averaged 21.8 min per participant (interquartile range 19.5–27.7). Blinded posttests demonstrated increased proficiency, as measured by both Objective Structured Assessments of Technical Skills (3.23 versus 2.29, P  
ISSN:0022-4804
1095-8673
DOI:10.1016/j.jss.2015.01.044