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Intermittent claudication is a symptom and is by definition diagnosed by a patient reporting a history of leg pain with walking relieved by rest. However, as other conditions such as sciatica can mimic intermittent claudication, testing is often performed to confirm the diagnosis of peripheral artery disease .
The prognosis for patients with peripheral vascular disease due to atherosclerosis is poor; patients with intermittent claudication due to atherosclerosis are at increased risk of death from cardiovascular disease (e.g. heart attack), because the same disease that affects the legs is often present in the arteries of the heart.
The factors with the greatest risk associations are hyperlipidemia, hypertension, diabetes mellitus, chronic kidney disease, and smoking. Presenting three of these factors or more increases the risk of developing PAD tenfold. [38] Smoking – Tobacco use in any form is the single greatest risk factor for peripheral artery disease internationally.
Patients with PAES are typically healthy young males without previous history of cardiovascular risk factors such as smoking, hypertension, hypercholesterolemia, or diabetes. [13] Typically, patients present with intermittent claudication that is worsened with exercise and relieved with rest. [3]
Claudication, from Latin claudicare 'to limp', refers to painful cramping or weakness in the legs. [3] NC should therefore be distinguished from vascular claudication, which stems from a circulatory problem rather than a neural one. The term neurogenic claudication is sometimes used interchangeably with spinal stenosis.
Other factors which may point to a diagnosis of critical limb ischemia are a Buerger's angle of less than 20 degrees during Buerger's test, a capillary refill of more than 15 seconds or diminished or absent pulses. [citation needed] Critical limb ischemia is different from acute limb ischemia. Acute limb ischemia is a sudden lack of blood flow ...
Risk factors for PAD include old age, [28] smoking, hypertension, and high cholesterol, with smoking being the greatest contributing factor. [5] This is because tobacco smoke contains potent chemicals that severely increase the occurrence of PAD. Thus, primary prevention of PAD is achieved with smoking cessation. [29]
Risk factors include history of diabetes, coronary artery disease, tobacco use, atrial fibrillation, hypercoagulable disorders, autoimmune diseases, or diseases affecting connective tissues, such as Ehlers-Danlos syndrome. [14] In a patient with otherwise no known risk factors, atrial fibrillation with embolism should be suspected. [14]