A transcervical chorionic villus sampling model for teaching
J Igor Iruretagoyena1, Barbara Trampe, Katharina Stewart
1Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Wisconsin-Madison, Madison, WI 53715-1599 USA. iruretagoyen@wisc.edu
Summary
This study developed a low-cost, lifelike transcervical chorionic villus sampling (CVS) simulator for medical training. The silicone model effectively replicates the maternal anatomy and allows practice of CVS procedures in a controlled environment.
Area of Science:
- Medical Simulation
- Obstetrics and Gynecology
- Surgical Training
Background:
- Chorionic villus sampling (CVS) is a crucial prenatal diagnostic procedure.
- Effective training models are essential for mastering CVS techniques.
- Existing training methods may lack realism or be cost-prohibitive.
Purpose of the Study:
- To develop a novel, cost-effective, and lifelike transcervical chorionic villus sampling (CVS) simulator.
- To create a training tool that accurately mimics the maternal interface and anatomical structures.
- To provide a controlled environment for practicing CVS catheter manipulation and ultrasound guidance.
Main Methods:
- A silicone-based model was constructed to simulate the maternal interface, cervix, endocervical canal, and vagina.
- Tap water was utilized to represent amniotic fluid.
- The CVS procedure was performed using the simulator with standard ultrasound equipment in a realistic setting.
- Placental placement was varied to adjust simulation difficulty.
Main Results:
- The developed simulator successfully facilitated transcervical chorionic villus sampling (CVS) practice.
- The model allowed for adjustable difficulty through variable placental positioning.
- Catheter handling and angulation could be practiced effectively.
- The low cost (under $200) makes the model sustainable for repeated use.
Conclusions:
- This low-cost transcervical chorionic villus sampling (CVS) simulator offers a realistic and valuable training tool.
- The model enhances procedural learning in a safe, controlled setting.
- It provides an accessible and indefinitely reusable resource for obstetric and gynecologic trainees.
