Table 1

Clinical Symptom Classification

Fontaine ClassificationProposed PARC Universal Data ElementsRutherford Classification
StageSymptomsGradeCategorySymptoms
IAsymptomaticAsymptomatic00Asymptomatic
IIIntermittent claudication/other exertional limb symptomsMild claudication/limb symptoms (no limitation in walking)0
1
1
2
Mild claudication
Moderate claudication
IIaModerate claudication/ limb symptoms (able to walk without stopping >2 blocks or 200 m or 4 min)
IIbSevere claudication/limb symptoms (only able to walk without stopping <2 blocks or 200 m or 4 min)13Severe claudication
IIIIschemic rest painIschemic rest pain (pain in the distal limb at rest felt to be due to limited arterial perfusion)II4Ischemic rest pain
IVUlceration or gangreneIschemic ulcers on distal legIII5Ischemic ulceration
Ischemic gangreneIII6Ischemic gangrene

↔ = comparable terms.