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Renal artery stenosis (RAS) is the narrowing of one or both of the renal arteries, most often caused by atherosclerosis or fibromuscular dysplasia. This narrowing of the renal artery can impede blood flow to the target kidney , resulting in renovascular hypertension – a secondary type of high blood pressure .
Angiotension converting enzyme. The pathogenesis of renovascular hypertension involves the narrowing of the arteries supplying the kidneys which causes a low perfusion pressure that is detected by the juxtaglomerular apparatus (via the macula densa cells, which act as baroreceptors; located on the afferent arteriole wall). [6]
This albuminuria usually does not cause symptoms but can be indicative of many kidney disorders. Protein in the urine (proteinuria) is best identified from a 24-hour urine collection. [9] Bilateral renal artery stenosis should always be considered as a differential diagnosis for the presentation of HN.
Coronary artery bypass grafting (CABG): A bypass surgery improves blood flow to your heart by taking another blood vessel from somewhere else in your body and using it to create a new passage for ...
Kidney ischemia [1] is a disease with a high morbidity and mortality rate. [2] Blood vessels shrink and undergo apoptosis which results in poor blood flow in the kidneys. More complications happen when failure of the kidney functions result in toxicity in various parts of the body which may cause septic shock, hypovolemia, and a need for surgery. [3]
Erythromelalgia - a rare peripheral vascular disease with symptoms that include burning pain, increased temperature, erythema and swelling that generally affect the hands and feet. [17] Renal artery stenosis - the narrowing of renal arteries that carry blood to the kidneys from the aorta. [2]