A novel amniocentesis model for learning stereotactic skills

Area of Science:

• Medical Simulation and Training
• Obstetrics and Gynecology
• Surgical Skill Acquisition

Background:

• Amniocentesis is a common obstetric procedure requiring precise stereotactic skills.
• Effective training models are crucial for resident education and patient safety.
• Existing models may lack realism or be prohibitively expensive.

Purpose of the Study:

• To develop a lifelike and cost-effective model for amniocentesis training.
• To enable residents to acquire necessary stereotactic skills and procedural comfort.
• To simulate various real-life amniocentesis scenarios.

Main Methods:

• Construction of a novel amniocentesis model using a formalin-preserved gravid pig uterus.
• Simulation of skin and subcutaneous layers using a Ziploc bag filled with ultrasound gel.
• Evaluation of the model's durability and realism through needle insertions.

Main Results:

• The model allows for amniocentesis to be performed realistically, mimicking clinical conditions.
• The model demonstrated durability, with no leaks observed after over 50 needle insertions.
• The model is adaptable to simulate various conditions, including polyhydramnios, oligohydramnios, and different fetal positions.

Conclusions:

• This novel, low-cost model offers realistic tissue resistance and sonographic accuracy for amniocentesis training.
• The training tool provides a non-threatening environment for resident instruction.
• The model's adaptability enhances its utility for diverse training needs.