This grading scale incorporates anatomical features of the AVM to formulate a score between 1 and 5 (40). The higher the score, the higher the risk of operative morbidity and mortality. These predictive data can then be discussed with the family to determine whether operative intervention is desirable.
| Factor | Measurement Parameter | Score |
| Size | ||
| 0-3 cm | 1 | |
| >3 to 6 cm | 2 | |
| >6 cm | 3 | |
| Location | ||
| Noneloquent | 0 | |
| Eloquent | 1 | |
| Deep venous drainage | ||
| Not present | 0 | |
| Present | 1 |
Please create a free account or log in to read 'Spetzler-Martin AVM Grading Scale'
Registration is free, quick and easy. Register and complete your profile and get access to the following:
- Full unrestricted access to The ISPN Guide
- Download pages as PDFs for offline viewing
- Create and manage page bookmarks
- Access to new and improved on-page references
