What are the clinical categories of acute limb ischemia?
Clinical Categories of Acute Limb Ischemia
| CATEGORY | DESCRIPTION | CAPILLARY RETURN | MUSCLE WEAKNESS | SENSORY LOSS | ARTERIAL DOPPLER SIGNAL | VENOUS DOPPLER SIGNAL |
|---|---|---|---|---|---|---|
| Viable | Not immediately threatened | Intact | None | None | Audible (ankle pressure >30 mm Hg) | Audible |
| Threatened | Salvageable if promptly treated | Intact, but slow | Mild, partial | Mild, incomplete | Inaudible | Audible |
| Irreversible | Major tissue loss, amputation indicated regardless of treatment | Absent (marbling) | Profound, paralysis (rigor) | Profound, anesthetic | Inaudible | Inaudible |
