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Novel Realistic Bladder Model Teaches Anatomy & Builds Resident Confidence in Cystotomy Recognition/Repair
Purpose: To develop and pilot an inexpensive, reusable,
water-tight moderate-fidelity bladder model that can be used to teach Ob-Gyn
residents cystotomy repair.
Background: Cystotomy repair is a required Ob-Gyn milestone
procedure; however, low surgical volume for cystotomy may impact resident
ability/confidence to perform the procedure. Available simulation models are
either expensive or low-fidelity and not water-tight. Our goal is to create a
cost-effective, realistic, functional bladder model (visible ureteral jets,
water-tight after repair) for simulation of cystotomy repair.
Methods: Phase 1: Design and creation of the model using molds
developed with 3D design software and 3D printing. The silicone model includes
ureters, urethra, trigone, ureteral orifices, rugae, muscularis, and mucosa.
Phase 2: Pilot of the model with Ob-Gyn residents as part of their simulation
curriculum. Residents were given a pre- and post-test to identify the model’s
anatomic landmarks and rate their confidence in 1) identifying cystotomy and 2)
performing open cystotomy repair. Residents evaluated the model’s fidelity
Results: Eight bladder models were constructed for $206. The
model was water-tight post-repair and cystoscopy demonstrated bilateral
ureteral jets. All residents, n=16, had no prior cystotomy simulation and
limited experience with cystotomy repair. The model improved ability to
identify bladder anatomy (4.3/6 items pre vs 5.8/6 items post, p=0.04) and
confidence in both identifying cystotomy (2.14 vs 3.4 of 5, p= 0.006) and
performing cystotomy (1.4 vs 3.3 of 5, p=0.014). Learners strongly agreed the
model was realistic, mean 4.6/5.
Discussions: Our novel bladder model is cost-effective, realistic
and useful for teaching anatomy and simulation of cystotomy repair.
CREOG & APGO Annual Meeting, 2020, Student, Resident, Faculty, Clerkship Director, Clerkship Coordinator, Osteopathic Faculty, Residency Director, Residency Coordinator, Patient Care, Medical Knowledge, Practice-Based Learning & Improvement, GME, Simulation, General Ob-Gyn,