Stockholm Workshop Scale; each hand should be graded separately: A) Classification of cold-induced Raynaud phenomenon in HAVS19; B) Sensorineural stages of HAVS.28
| A) | ||
|---|---|---|
| STAGE | GRADE | DESCRIPTION |
| 0 | None | No attacks |
| 1 | Mild | Occasional attacks affecting the tips of ≥ 1 fingers |
| 2 | Moderate | Occasional attacks affecting distal and middle (rarely also proximal) phalanges of ≥ 1 fingers |
| 3 | Severe | Frequent attacks affecting all phalanges of most fingers |
| 4 | Very severe | As in stage 3, with trophic changes in the fingertips |
| B) | |
|---|---|
| STAGE | DESCRIPTION |
| 0SN | Exposed to vibration but no symptoms |
| 1SN | Intermittent numbness with or without tingling |
| 2SN | Intermittent or persistent numbness, reduced sensory perception |
| 3SN | Intermittent or persistent numbness, reduced tactile discrimination or manipulative dexterity |
HAVS—hand-arm vibration syndrome, SN—sensorineural.