Changes of the von Willebrand factor cleaving protease activity in various clinical conditions.
| N denotes normal levels | |
| TTP | |
| Acute sporadic or chronic relapsing ↓↓↓↓ | AGING ↓ |
| Transplantation-associated N | NEWBORNS ↓↓↓ |
| Ticlopidine- or Clopidogrel-associated ↓↓↓ | PREGNANCY ↓↓ |
| Cancer-associated ↓↓↓ | CIRRHOSIS ↓↓↓ |
| HUS | UREMIA ↓↓ |
| Acute sporadic N ↓↓↓ | INFLAMMATION |
| Chronic relapsing ↓↓↓↓ | POST-OPERATIVE PERIOD ↓↓↓ |
| N denotes normal levels | |
| TTP | |
| Acute sporadic or chronic relapsing ↓↓↓↓ | AGING ↓ |
| Transplantation-associated N | NEWBORNS ↓↓↓ |
| Ticlopidine- or Clopidogrel-associated ↓↓↓ | PREGNANCY ↓↓ |
| Cancer-associated ↓↓↓ | CIRRHOSIS ↓↓↓ |
| HUS | UREMIA ↓↓ |
| Acute sporadic N ↓↓↓ | INFLAMMATION |
| Chronic relapsing ↓↓↓↓ | POST-OPERATIVE PERIOD ↓↓↓ |