Peripheral Vascular Disease Management

Patient Referral Guidelines

The American College of Cardiology recommends that patients with peripheral vascular disease (PVD) and multiple atherosclerotic risk factors should be referred to a vascular specialist, such as a vascular surgeon, vascular medicine physician, interventional cardiologist, or interventional radiologist with expertise in endovascular and surgical revascularization 1, 2
Patients with critical limb ischemia (CLI) require expedited referral within 24 hours to a vascular specialist competent in revascularization, especially those with ischemic rest pain, non-healing wounds, or ulcerations with skin breakdown 1, 3
The American College of Cardiology suggests that patients with an ankle-brachial index (ABI) <0.4, especially diabetic patients, should be referred to a vascular specialist for further evaluation and treatment 1
Patients with signs of tissue loss, gangrene, or infection should be referred immediately to a vascular specialist for prompt treatment 1, 3

The American College of Cardiology recommends that patients with lifestyle-limiting claudication should be referred to a vascular specialist when supervised exercise therapy and pharmacotherapy have failed, or when the patient has significant disability affecting work or important activities 1, 4
Comprehensive risk factor modification, including antiplatelet therapy, statins, blood pressure control, and smoking cessation, should be optimized before referring patients for elective evaluation and treatment 1, 2

The American College of Cardiology suggests that the interdisciplinary care team for PVD should include vascular specialists, podiatrists or orthopedic surgeons, wound care specialists, endocrinologists, and infectious disease specialists 1, 2, 3

Patients successfully treated for CLI require follow-up at least twice annually by a vascular specialist due to high recurrence rates, and should undergo direct foot examination, assessment for new ulcerations, and measurement of resting ABI and duplex ultrasound for bypass graft surveillance 1, 3, 5
The American College of Cardiology recommends that patients should receive written instructions on self-surveillance for recurrence and undergo aggressive cardiovascular risk modification regardless of symptom severity 1, 5, 3

Delaying referral for "medical optimization" in patients with CLI can lead to amputation, and these patients require expedited evaluation and treatment within 24 hours 3
Assuming absence of pain means absence of severe disease in diabetic patients can lead to delayed diagnosis and treatment, as neuropathy can mask ischemic pain 5, 4, 3
Approximately 40% of PAD patients have no leg symptoms, so referral decisions should be based on objective testing rather than symptoms alone 5
Recognizing that PAD patients have 50% mortality at 5 years due to coexistent coronary and cerebrovascular disease, and that all patients require aggressive cardiovascular risk modification regardless of symptom severity 6, 5, 3