For mild renal artery stenosis, patients usually do not have obvious symptoms; however, severe renal artery stenosis may be manifested as renal vascular hypertension, ischemic kidney disease, etc., which requires timely medical consultation.
1. Renal vascular hypertension: the rapid progression of hypertension in people with normal blood pressure; the recent rapid deterioration of blood pressure in middle-aged and elderly patients with original hypertension, and the obvious increase of diastolic blood pressure. Severe patients may have malignant hypertension, which often requires a variety of antihypertensive drugs to control. Some patients have repeated episodes of acute pulmonary edema, which can occur instantly and subside rapidly.
2. Ischemic nephropathy: with or without renal vascular hypertension. There is a slow progressive decline in renal function, tubular hypoplasia (increased nocturia, decreased urine specific gravity and osmolality, and other signs of distal tubular concentrating dysfunction), and impaired tubular function (decreased glomerular filtration rate and increased creatinine). Urine routine may show proteinuria, small amount of red blood cells and tubular pattern.
If patients find renal artery stenosis, it is recommended to go to regular hospitals in time, and give targeted treatment or therapy under the guidance of doctors.