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

摘要: OBJECTIVE Surgery for brain aneurysms is technically demanding. In recent years, the process to learn technical skills necessary these challenging procedures has been affected by a decrease in number of surgical cases available and progressive restrictions on resident training hours. To overcome limitations, simulators such as cadaver heads human placenta models have developed. However, effectiveness improving unknown. This study assessed concurrent predictive validity aneurysm surgery simulation model compared with "live" cadaveric model. METHODS Two 30 placentas were used. Twelve neurosurgeons participated part this study, each operating 1 head Simulators evaluated regarding their ability simulate different steps encountered during real surgery. The time complete entire task simulator was analyzed. component involved 9 neurosurgical residents divided into 3 groups perform exercises, lasting 6 weeks. consisted educational video only (3 residents), residents). All had equivalent microsurgical experience superficial tumor After completing practice training, performed an unruptured middle cerebral artery (MCA) aneurysm, performance experienced vascular neurosurgeon who watched operative videos. RESULTS suitable portion experiment, required longer (p < 0.001) than cadavers task. considered more effective simulating sylvian fissure splitting, bipolar coagulation oozing microvessels, neck dome dissection. Both equally clipping, while superior intraoperative rupture reproduction anatomy simulation. 4 tasks: dissection, microvessel coagulation, clipping. Residents trained consistently highest overall scores when those simply videos 0.001). CONCLUSIONS biological provides excellent some critical tasks splitting fissure, dissection dome, surrounding microvessels. When performing MCA better other scenarios/models. age reduced exposure working hours, valid microneurosurgery striking similarities