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Other documented procedure related complications include femoral artery pseudoaneurysm and renal artery dissection. [citation needed] Of particular concern is the theoretical risk of damage to renal arteries during delivery of radiofrequency energy. An animal study using swine showed no damage to the renal arteries at 6 month follow up.
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 ...
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.
For example, the diameter was found to be 5.04 ± 0.74 mm using ultrasound but 5.68 ± 1.19 mm using angiography. [4] [5] 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]
In an abnormal kidney with RVT, a blood clot is present in the renal vein. In cases where the renal vein is suddenly and/or fully blocked, the kidneys will enlarge, reaching its maximum size within a week. An ultrasound imaging can be used to observe and track the size of the kidneys in RVT patients. Ultrasound is not efficient for use in ...
Hypertensive nephropathy refers to kidney failure that can be attributed to a history of hypertension [7] It is a chronic condition and it is a serious risk factor for the development of end-stage kidney disease (ESKD). However, despite the well-known association between hypertension and chronic kidney disease, the underlying mechanism remains ...
Renal hypoplasia; Other names: Hypoplastic kidneys: An ultrasound scan of a hypoplastic right kidney in an adult male. Specialty: Nephrology: Complications: Anuria, chronic kidney disease, glomerular hyperfiltration, hypertension, proteinuria, sepsis, urinary tract infection, urinary tract obstruction, urolithiasis [1] [2] Types
The prognosis of individuals with renovascular hypertension is not easy to determine. Those with atherosclerotic renal artery disease have a high risk of mortality, furthermore, those who also have renal dysfunction have a higher mortality risk. However, the majority of renovascular diseases can be improved with surgery. [4]
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