Robotic Hysterectomy Assessment Score (RHAS)
An observational study by Frederick et al.20 led to the development and validation of Robotic Hysterectomy Assessment Score (RHAS) based on the study and evaluation of live video-recorded procedures assessing six surgical domains on a five-point Likert scale. Each domain was subdivided into specific tasks and a maximum score of 80 was possible. Delphi methodology was used for content validation of the six surgical domains. The evaluation covered 25 expert, 20 beginner and 7 novice surgeons.
Interrater reliability was acceptable, and ICC varied from 0.605 to 0.748 for domains 1, 2, 3, 4 and 6. Total ICC was 0.600 (p=0.001).). RHAS demonstrated the ability to differentiate between experts, advanced beginners and novices, and the median overall scores for the three categories of surgeons were 75.25 for experts, 72.25 for advanced beginners and 70.25 for novices (p=0.006)