Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Mar 5, 2026

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
07:21

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices

Published on: September 8, 2023

1.1K

Learning brain aneurysm microsurgical skills in a human placenta model: predictive validity.

Marcelo Magaldi Ribeiro de Oliveira1,2, Carlos Eduardo Ferrarez1, Taise Mosso Ramos1

  • 11Microsurgical Laboratory, Medical School, and.

Journal of Neurosurgery
|March 25, 2017
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Localized lichen planopilaris without patches: a multicenter retrospective study of 74-patients.

Anais brasileiros de dermatologia·2026
Same author

Diagnostic Performance of the Trichogram Compared to Histopathology of Scalp Biopsy in Horizontal Sections in Female Androgenetic Alopecia: A Retrospective Study.

Skin appendage disorders·2026
Same author

Assessment of sexual function and its association with quality of life and disease severity in patients with atopic dermatitis.

Anais brasileiros de dermatologia·2026
Same author

Surgical treatment of giant intracranial aneurysms: A systematic review and single arm Meta-Analysis.

Neurosurgical review·2025
Same author

Circular excision versus fusiform excision in the treatment of non-melanoma skin cancer: clinical trial on aesthetic and oncological outcomes.

Anais brasileiros de dermatologia·2025
Same author

Pediatric Pityriasis Amiantacea: A Multicenter Retrospective Study of 76 Patients.

Skin appendage disorders·2025

The human placenta model offers effective brain aneurysm surgery simulation, outperforming cadavers in key skills and improving resident performance. This biological simulator is a valuable tool for microneurosurgery training.

Area of Science:

  • Neurosurgery
  • Surgical Simulation
  • Medical Education

Background:

  • Neurosurgical training for brain aneurysms is challenged by reduced case availability and training hour restrictions.
  • Surgical simulators are being developed to address these limitations, but their effectiveness is not well-established.
  • Existing simulators include cadaver heads and human placenta models.

Purpose of the Study:

  • To assess the concurrent and predictive validity of a human placenta model for brain aneurysm surgery simulation.
  • To compare the effectiveness of the placenta model against a human cadaver head model.
  • To evaluate the impact of simulation training on neurosurgical resident performance.

Main Methods:

  • Concurrent validity: 12 neurosurgeons operated on both placenta and cadaver models, evaluating simulation fidelity and task completion time.
Keywords:
MCA = middle cerebral arteryUFMG = Federal University of Minas Geraisbrain aneurysmcerebrovascular surgeryhuman placentaneurosurgical simulationpredictive validitysurgical techniquesylvian fissurevascular disorders

More Related Videos

The Helsinki Rat Microsurgical Sidewall Aneurysm Model
13:53

The Helsinki Rat Microsurgical Sidewall Aneurysm Model

Published on: October 12, 2014

12.7K
Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model
08:11

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model

Published on: November 19, 2017

12.0K

Related Experiment Videos

Last Updated: Mar 5, 2026

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
07:21

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices

Published on: September 8, 2023

1.1K
The Helsinki Rat Microsurgical Sidewall Aneurysm Model
13:53

The Helsinki Rat Microsurgical Sidewall Aneurysm Model

Published on: October 12, 2014

12.7K
Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model
08:11

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model

Published on: November 19, 2017

12.0K
  • Predictive validity: 9 neurosurgical residents trained for 6 weeks using video, cadaver, or placenta simulation.
  • Performance assessment: Residents performed a simulated middle cerebral artery (MCA) aneurysm surgery, evaluated by an experienced surgeon.

    • Main Results:

    • The placenta model was more effective than cadavers for simulating sylvian fissure splitting, bipolar coagulation, and aneurysm dissection.
    • Both models equally simulated aneurysm neck clipping; cadavers were superior for intraoperative rupture simulation and anatomical realism.
    • Residents trained with the placenta model demonstrated significantly higher overall performance scores (p < 0.001) compared to cadaver or video training.

    Conclusions:

    • The human placenta model effectively simulates critical aneurysm surgery tasks, including sylvian fissure dissection and bipolar coagulation.
    • Neurosurgical residents trained with the placenta model showed superior performance in simulated MCA aneurysm surgery.
    • The placenta model is a valid and effective tool for microneurosurgery simulation, particularly relevant given current training limitations.