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Arterial fibromuscular dysplasia
T F Lüscher1, J T Lie, A W Stanson
1Department of Physiology and Biophysics, Mayo Clinic, Rochester, MN 55905.
Insights
Fibromuscular dysplasia is a vascular condition affecting arteries like the renal and carotid. While its cause is unclear, angioplasty is the preferred treatment for symptomatic patients.
Area of Science:
- Vascular Medicine
- Cardiology
- Genetics
Background:
- Fibromuscular dysplasia (FMD) is a nonatherosclerotic, noninflammatory vascular condition.
- It predominantly affects the renal and internal carotid arteries, but can also involve vertebral, iliac, subclavian, and visceral arteries.
- The exact pathogenesis remains incompletely understood, with potential contributions from humoral, mechanical, genetic factors, and mural ischemia.
Purpose of the Study:
- To summarize the key aspects of fibromuscular dysplasia, including its affected arteries, pathogenesis, natural history, clinical manifestations, and treatment.
Main Methods:
- This abstract synthesizes information from existing literature on fibromuscular dysplasia.
- It reviews the epidemiology, etiology, clinical presentation, and management strategies for FMD.
- Focus is placed on characteristic arterial involvement and common symptoms.
Main Results:
- Fibromuscular dysplasia typically affects the renal and internal carotid arteries.
- The disease progression is generally benign, with a minority of patients experiencing advancement.
- Clinical manifestations include renovascular hypertension, stroke, subarachnoid hemorrhage, abdominal angina, and limb claudication.
Conclusions:
- Fibromuscular dysplasia is a distinct vascular disease with varied arterial involvement.
- Percutaneous transluminal angioplasty is the primary treatment for symptomatic individuals across affected vascular beds.
- Further research into its pathogenesis may elucidate more targeted therapeutic approaches.
Abstract:
Fibromuscular dysplasia is a nonatherosclerotic, noninflammatory vascular disease that involves primarily the renal and internal carotid arteries and less often the vertebral, iliac, subclavian, and visceral arteries. Although its pathogenesis is not completely understood, humoral, mechanical, and genetic factors as well as mural ischemia may play a role. The natural history is relatively benign, with progression occurring in only a minority of the patients. Typical clinical manifestations are renovascular hypertension, stroke, subarachnoid hemorrhage, abdominal angina, or claudication of the legs or arms. In patients with symptoms, percutaneous transluminal angioplasty has emerged as the treatment of choice in most involved vascular beds.