• Jeffrey H Barsuk, Elaine R Cohen, John A Vozenilek, Lanty M O'Connor, William C McGaghie, and Diane B Wayne.
• J Grad Med Educ. 2012 Mar 1;4(1):23-7.

BackgroundParacentesis is a commonly performed bedside procedure that has the potential for serious complications. Therefore, simulation-based education for paracentesis is valuable for clinicians.ObjectiveTo assess internal medicine residents' procedural skills before and after simulation-based mastery learning on a paracentesis simulator.MethodsA team with expertise in simulation and procedural skills developed and created a high fidelity, ultrasound-compatible paracentesis simulator. Fifty-eight first-year internal medicine residents completed a mastery learning-based intervention using the paracentesis simulator. Residents underwent baseline skill assessment (pretest) using a 25-item checklist. Residents completed a posttest after a 3-hour education session featuring a demonstration of the procedure, deliberate practice, ultrasound training, and feedback. All residents were expected to meet or exceed a minimum passing score (MPS) at posttest, the key feature of mastery learning. We compared pretest and posttest checklist scores to evaluate the effect of the educational intervention. Residents rated the training sessions.ResultsResidents' paracentesis skills improved from an average pretest score of 33.0% (SD  =  15.2%) to 92.7% (SD  =  5.4%) at posttest (P < .001). After the training intervention, all residents met or exceeded the MPS. The training sessions and realism of the simulation were rated highly by learners.ConclusionThis study demonstrates the ability of a paracentesis simulator to significantly improve procedural competence.

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