WIfI Classification for Chronic Limb-Threatening Ischaemia
SVS (Society for Vascular Surgery) WIfI classification system for chronic limb-threatening ischaemia (CLTI). Grades Wound severity, Ischaemia, and foot Infection. Guides amputation risk and benefit of revascularisation.
Score interpretation
Estimated 1-year amputation risk from the SVS WIfI consensus table (Mills 2014). Benefit of revascularisation is graded in a separate table and depends mainly on the ischaemia grade.
→ Wound care; optimise cardiovascular risk factors; antiplatelet therapy; consider revascularisation if symptomatic ischaemia; monitor healing; podiatry input
Estimated 1-year amputation risk from the SVS WIfI consensus table (Mills 2014). Benefit of revascularisation is graded in a separate table and depends mainly on the ischaemia grade.
→ Vascular surgery referral; duplex ultrasound and/or CTA/MRA for revascularisation planning; treat infection aggressively (IV antibiotics); wound debridement; revascularisation (angioplasty or bypass per anatomy) where ischaemia contributes; MDT (vascular surgery, diabetology, podiatry, wound care)
Estimated 1-year amputation risk from the SVS WIfI consensus table (Mills 2014). Benefit of revascularisation is graded in a separate table and depends mainly on the ischaemia grade.
→ Vascular surgery referral; duplex ultrasound and/or CTA/MRA for revascularisation planning; treat infection aggressively (IV antibiotics); wound debridement; revascularisation (angioplasty or bypass per anatomy) where ischaemia contributes; MDT (vascular surgery, diabetology, podiatry, wound care)
Estimated 1-year amputation risk from the SVS WIfI consensus table (Mills 2014). Benefit of revascularisation is graded in a separate table and depends mainly on the ischaemia grade.
→ Urgent vascular surgery review; admission for IV antibiotics and wound care; aggressive revascularisation attempt if anatomically possible; if not, primary amputation planning; MDT; rehabilitation/prosthetics team; patient goals-of-care discussion
Interpretation bands for the WIfI Classification. Apply clinical judgement and local guidance.
References
- Mills JL et al. The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System: risk stratification based on wound, ischemia, and foot infection (WIfI). J Vasc Surg. 2014;59(1):220–234.
Related
Curated clinical cross-links plus same-class fallbacks.
- Amlodipine · Dihydropyridine Calcium Channel Blocker — Raynaud's / Peripheral Vascular Disease / Hypertension
- Naftidrofuryl Oxalate · 5-HT2 Receptor Antagonist — Peripheral Arterial Disease (Intermittent Claudication)
- Alteplase (Peripheral Arterial / DVT Use) · Thrombolytic — Catheter-Directed Thrombolysis / Peripheral Arterial Occlusion
- Streptokinase · Thrombolytic — Peripheral Arterial Occlusion / DVT (Historical)
- Selexipag · Pulmonary Arterial Hypertension
- Macitentan · Pulmonary Arterial Hypertension
- Hip Fracture Management · NICE CG124 / BOA 2020
- Distal Radius Fracture · BOA / NICE
- Ankle Fracture Management · BOA / Lauge-Hansen classification
- Metastatic Spinal Cord Compression · NICE CG75 2020
- Open Fracture Management · BOA/BAPRAS 2017
- OrthoPath: Upper Limb ED Triage · OrthoPath ED Tool — ReviseMRCEM.com
Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.