Definition
Narrowing of an artery supplying a kidney, commonly from atherosclerosis or fibromuscular dysplasia.
Symptoms
Difficult-to-control hypertension; sometimes kidney decline or pulmonary edema.
How it may be discovered
Investigation of resistant hypertension or unexplained renal impairment.
When to seek care
Specialist follow-up is needed; sudden breathlessness requires emergency care.
Investigations and tests
Doppler ultrasound, CT angiography or MR angiography according to kidney function and indication.
Reaching a diagnosis
A visible narrowing does not always explain symptoms; its functional significance matters.
Treatment options
Medical and vascular-risk treatment; revascularisation is reserved for selected situations.
These kidney guides are educational. Medical kidney disease may require coordinated care with a nephrologist.
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