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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 .
Nutcracker phenomenon, renal vein entrapment syndrome, mesoaortic compression of the left renal vein. The nutcracker syndrome results from compression of the left renal vein between the aorta and the superior mesenteric artery. The nutcracker syndrome (NCS) results most commonly from the compression of the left renal vein (LRV) between the ...
Erythromelalgia or Mitchell's disease (after Silas Weir Mitchell) is a rare vascular peripheral pain disorder in which blood vessels, usually in the lower extremities or hands, are episodically blocked (frequently on and off daily), then become hyperemic and inflamed. There is severe burning pain (in the small fiber sensory nerves) and skin ...
Nephrotic syndrome is a collection of symptoms due to kidney damage. This includes protein in the urine, low blood albumin levels, high blood lipids, and significant swelling. Other symptoms may include weight gain, feeling tired, and foamy urine. Complications may include blood clots, infections, and high blood pressure.
Applying spectral Doppler to the renal artery and selected interlobular arteries, peak systolic velocities, resistive index, and acceleration curves can be estimated (Figure 4) (e.g., peak systolic velocity of the renal artery above 180 cm/s is a predictor of renal artery stenosis of more than 60%, and a resistive index, which is a calculated ...
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]
When this happens, it’s known as essential hypertension or primary hypertension. High blood pressure can be caused by a combination of lifestyle factors like: Having overweight or obesity ...
Due to the anatomical position of the aorta, the inferior vena cava, and the kidneys, the right renal artery is normally longer than the left renal artery. [1] [6] The right passes behind the inferior vena cava, the right renal vein, the head of the pancreas, and the descending part of the duodenum. It’s somewhat lower than the left one.