An elevated bilateral renal artery resistance index is often indicative of stenosis or spasm of the renal or intrarenal arteries and is usually characterized by proteinuria and rarely hematuria.
The bilateral renal artery resistance index is used to assess renal artery disease, and an increase in the index is often indicative of renal artery stenosis or spasm. Renal artery stenosis causes both renal and cardiovascular manifestations, with the cardiovascular aspect mainly characterized by hypertension.
Renal artery stenosis will lead to insufficient renal blood supply, and renal function will gradually decline, with early manifestations of tubular insufficiency such as decreased urine specific gravity, increased nocturia, and increased urinary sodium. In the later stage, glomerular insufficiency such as proteinuria and elevated blood creatinine will occur.
Patients with increased resistance index of both renal arteries should go to the hospital for examination in time to clarify the specific causes of the disease and make early intervention and treatment, so as to avoid the delay of the condition and the serious consequences.