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Related Experiment Video

Updated: Jul 21, 2025

Model Surgical Training: Skills Acquisition in Fetoscopic Laser Photocoagulation of Monochorionic Diamniotic Twin Placenta Using Realistic Simulators
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Low-Cost Task Trainer for In Utero Fetal Stent Placement.

Elisabeth Codsi1, Brian C Brost, Joshua F Nitsche

  • 1From the Division of Maternal Fetal Medicine (E.C.), Department of OB/GYN, University of Montreal Medical School, Montreal, Quebec, Canada; Division of Maternal-Fetal Medicine (B.C.B.), Department of OB/GYN, University of Kansas School of Medicine, Kansas City, KS; and Division of Maternal Fetal Medicine (J.F.N.), Department of OB/GYN, Wake Forest School of Medicine, Winston-Salem, NC.

Simulation in Healthcare : Journal of the Society for Simulation in Healthcare
|July 26, 2023
PubMed
Summary
This summary is machine-generated.

A novel, low-cost fetal stent placement simulator using freezer bags was developed. This realistic and useful training tool allows for repeated practice of a rare fetal procedure, enhancing provider competence.

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Area of Science:

  • Medical Simulation
  • Fetal Surgery Training

Background:

  • Intrauterine fetal stent placement is a rare procedure requiring specialized skills.
  • Simulation is crucial for developing and maintaining technical competence in rare fetal interventions.

Purpose of the Study:

  • To design and evaluate a low-cost, easily assembled, and clinically relevant task trainer for fetal stent placement.
  • To assess the realism and training utility of the simulator.

Main Methods:

  • A simulator was created using two freezer bags filled with ultrasound gel.
  • The task trainer was used for in utero stent deployment with or without ultrasound guidance.
  • Surveys assessed participant feedback on realism and usefulness; timed assessments compared assembly and deployment with a porcine model.

Main Results:

  • 133 participants rated the simulator highly for realism (median 5/5) and usefulness.
  • The freezer bag simulator was significantly faster to assemble and use compared to a porcine model.
  • Deployment and reassembly times were notably efficient for the freezer bag trainer.

Conclusions:

  • The low-cost freezer bag simulator is a highly rated, valuable tool for practicing in utero stent deployment.
  • It enables numerous repetitions, beneficial for both novice and experienced providers in this low-volume procedure.