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Renal vascular disease typically occurs with progressive narrowing of the main renal artery or smaller arterial vessels. Often, both patterns of disease coexist and result in ‘ischaemic nephropathy’ with damage to renal tissue. Much less commonly, inflammatory vasculitis can affect small or medium vessels. Ninety per cent of renal vascular disease is caused by atherosclerosis. Patients with renal vascular disease have an increased risk of cardiovascular death from associated cerebrovascular and coronary heart disease. Less than 10% of renal vascular disease is caused by fibromuscular dysplasia. The cause is unknown, but smoking is a risk factor. The disease is often bilateral and multifocal. It tends to affect the mid-portion of the renal artery, while atherosclerosis tends to occur at points of stress, especially at the junction of renal arteries with the aorta. This chapter reviews the diagnosis and management of renal vascular disease. |
