Risk Factor Classification of Rutherford et al for Arterial Disease (Reporting Standards from an Ad Hoc Committee of the Society for Vascular Surgery)

Parameter

Finding

Points

diabetes mellitus

none

0

adult onset, diet controlled

1

adult onset, insulin controlled

2

juvenile onset

3

tobacco use

none

0

not current, stopped within past 10 years

1

current, less than 1 pack per day

2

current, one or more packs per day

3

hypertension

none

0

easily controlled with 1 drug

1

controlled with 2 drugs

2

requires 3 or more drugs for control, or uncontrolled

3

hyperlipidemia

none

0

mild elevation, controlled with diet

1

Types II, III or IV requiring strict dietary control

2

requiring diet and drug control

3

cardiac status

asymptomatic with normal ECG

0

asymptomatic, remote MI by history (> 6 months), occult MI by ECG

1

stable angina, controlled ectomy, asymptomatic arrhythmia, drug compensated CHF

2

unstable angina, symptomatic or poorly controlled ectopy or arrhythmia, poorly compensated CHF, recent MI (within past 6 months)

3

carotid disease

no signs or symptoms, no bruit

0

asymptomatic but evidence of disease

1

transient or temporary stroke (TIA)

2

completed stroke with permanent neurological deficit

3

renal status

no known renal disease, serum creatinine < 1.5 mg/dL

0

creatinine 1.5 to 3.0 mg/dL

1

creatinine 3.0 to 6.0 mg/dL, creatinine clearance 15 to 30 mL per minute

2

creatinine > 6 mg/dL, creatinine clearance < 15 mL per minute, on dialysis, or with renal transplatn

3

pulmonary status

asymptomatic, normal chest X-ray, pulmonary function tests (PFTs) >= 80% of predicted

0

asymptomatic or mild dyspnea on exertion, mild parenchymal changes on chest X-ray, PFTs 65 to 79% of predicted

1

between 1 and 3

2

vital capacity less than 1.85 L:, FEV1 less than 1.2 L, FEV1 less than 35% of predicted, PaCO2 > 45 mm Hg, supplemental oxygen needed, pulmonary hypertension

3