Development and validation of the Skills Assessment in Microsurgery for Brain Aneurysms (SAMBA) instrument for predicting proficiency in aneurysm surgery.

摘要: OBJECTIVE Surgical performance evaluation was first described with the OSATS (Objective Structured Assessment of Technical Skills) and modified for aneurysm microsurgery simulation OSAACS Aneurysm Clipping Skills). These methods rely on subjective opinions evaluators, however, there is a lack objective proficiency in microsurgical treatment brain aneurysms. The authors present new instrument, Skill Microsurgery Brain Aneurysms (SAMBA) scale, which can be used similarly model unruptured middle cerebral artery (MCA) aneurysms to predict surgical performance; also report its validation. METHODS SAMBA scale created by consensus among 5 vascular neurosurgeons from 2 different neurosurgical departments. results were analyzed using descriptive statistics, Cronbach's alpha indexes, multivariate ANOVA analyses (p < 0.05). RESULTS Expert, intermediate-level, novice surgeons scored, respectively, an average 33.9, 27.1, 16.4 points real surgery 33.3, 27.3, 19.4 simulation. interrater reliability index 0.995 0.996 simulated surgery; intrarater 0.983 (Cronbach's alpha). In both settings, scores achieved members each group (expert, intermediate level, novice) significantly 0.001). Scores more diverse (coefficient variation = 12.4). CONCLUSIONS Predictive validation placenta has been previously reported, but adds scoring system verify ability this complex operation, stratifying points. as interface between learning practicing, it applied safe controlled environment, such provided model, similar obtained surgery, predicting performance.