Abstract
To demonstrate the microsurgical procedures, and to evaluate the feasibility of living models of experimental neurovascular training by developing new complex vascular exercises mimicking the most common intracranial aneurysms. The procedures were performed under a Zeiss (OPMI pico f170) microscope using basic microsurgery instruments, 10/0 Nylon and blue Polypropylene micro-sutures. We selected adult albino Wistar rats weighing between 258 and 471g each. Seven different aneurysm types were created using carotid, jugular, cava, aorta and femoral vessels. Seven types of aneurysm were designed and created in the rat with a high-medium successful rate. There are differences in terms of realism and the difficulty of performance, according to the different types: lateral wall, bifurcation, top of the basilar, fusiform, fusiform + involved branch, Anterior Communicating Artery (ACoA) and giant. The steps and technical issues to produce these exercises are described. We show the feasibility of creating several types of aneurysm using different vessels in a rodent model. Training on these models help to improve microsurgical skills, allowing safe practice for neurosurgeons in all stages of their career.
Highlights
One of the most accepted ways to train on microsurgery is in the laboratory by performing experimental vascular exercises
Seven microaneurysms were designed and created in the laboratory, based on the types most commonly found in humans
High quality non-living models for vascular surgery are made using plastic, such as the PVC rat model [7], they are suboptimal and not as similar as the rodents [2,4,5,6,9,10,11,12]. Models such as chicken wing described by JOlabe and Olabe [9], are reproducible and obtained by the trainees without any implications about the life of the animal and offer good quality results in terms of aneurysm creation
Summary
One of the most accepted ways to train on microsurgery is in the laboratory by performing experimental vascular exercises.Microvascular suturing and by-pass procedures are distinctive from the rest of neurosurgery, where, unlike other general procedures, the surgeon often creates something that did not exist before [7], requiring a degree of imagination and creativity. One of the most accepted ways to train on microsurgery is in the laboratory by performing experimental vascular exercises. Laboratory training on anastomoses can help create higher quality anastomoses. García-Feijoo P. et al: Intracranial Aneurysms in Rodents. The importance of animal model training is more important than ever due to the decline in the number of microsurgical clippings of cerebral aneurysms [6]. By suturing, dissecting, sectioning, and using microsurgery tools, surgeons improve their skills when they are in the operating room. They feel more confident with the operation, their tissue handling is improved and operating under the microscope is more familiar
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