Low-flow and high-flow neurosurgical bypass and anastomosis training models using human and bovine placental vessels: a histological analysis and validation study

Journal of Neurosurgery
Evgenii BelykhMark C Preul

Abstract

OBJECTIVE Microvascular anastomosis is a basic neurosurgical technique that should be mastered in the laboratory. Human and bovine placentas have been proposed as convenient surgical practice models; however, the histologic characteristics of these tissues have not been compared with human cerebral vessels, and the models have not been validated as simulation training models. In this study, the authors assessed the construct, face, and content validities of microvascular bypass simulation models that used human and bovine placental vessels. METHODS The characteristics of vessel segments from 30 human and 10 bovine placentas were assessed anatomically and histologically. Microvascular bypasses were performed on the placenta models according to a delineated training module by "trained" participants (10 practicing neurosurgeons and 7 residents with microsurgical experience) and "untrained" participants (10 medical students and 3 residents without experience). Anastomosis performance and impressions of the model were assessed using the Northwestern Objective Microanastomosis Assessment Tool (NOMAT) scale and a posttraining survey. RESULTS Human placental arteries were found to approximate the M2-M4 cerebral and superficial temporal...Continue Reading

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Citations

Jun 26, 2017·World Neurosurgery·Evgenii BelykhMark C Preul
May 26, 2018·Minimally Invasive Surgery·Vadim A ByvaltsevMark C Preul
Jun 8, 2021·British Journal of Neurosurgery·Jafeth LizanaRokuya Tanikawa
Jun 5, 2021·Surgical Neurology International·Vadim ByvaltsevMarat Aliyev
Jun 19, 2021·Acta neurochirurgica·Mario Gomar-AlbaJosé Masegosa-González
Aug 26, 2021·Curēus·James K LiuNathaniel P Brooks

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