Table 1.
Rutherford classification of ALI (SVS/SICVS) [10].
| Category | Description/prognosis | Findings |
Doppler signals |
||
|---|---|---|---|---|---|
| Sensory loss | Muscle weakness | Arterial | Venous | ||
| I. Viable | Not immediately threatened | None | None | Audible | Audible |
| II. Threatened | |||||
| a. Marginally | Salvageable if promptly treated | Minimal (toes) or none | None | Inaudible | Audible |
| b. Immediately | Salvageable with immediate revascularization | More than toes, associated with rest pain | Mild, moderate | Inaudible | Audible |
| III. Irreversible | Major tissue loss or permanent nerve damage is inevitable | Profound, anesthetic | Profound, paralysis (rigor) | Inaudible | Inaudible |