disease and smoking. Caucasian, elderly individuals with atherosclerosis are at highest risk for the development of renal artery occlusion.
Symptoms
Most individuals with renal artery occlusion typically present with no symptoms. The reason that patients present with few or no symptoms is that the second kidney takes over for the lack of functioning by the impaired kidney.
Diagnosis is typically made upon routine physical examination or when being examined for other cardiovascular or renal conditions. Some signs associated with renal artery occlusion include high blood pressure, history of high blood pressure and/or bruits of the kidneys.
Diagnosis and screening
Physical examination, medical history, and diagnostic tools are used to diagnose renal artery occlusion. The disease typically presents with few or no symptoms and is usually diagnosed upon routine physical examination or when being examined for other cardiovascular or renal conditions.
Practicing clinicians will use a stethoscope to listen for bruits of the kidney and check blood pressure to see if patient presents with high blood pressure. Other diagnostic tools used to diagnose renal artery occlusion include magnetic resonance imaging, computerized tomography, kidney ultrasound, radionucleotide conventional arteriography, contrast nephrotoxicity, renogram, renal perfusion scintiscan, urine concentration testing, urine specific gravity, and renal arteriography.
Blood work includes complete blood counts, serum creatinine levels, and serologic levels such as antinuclear antibodies, C3, C4 and antinuclear cytoplasmic antibodies.
Renal vein thrombosis
Renal vein thrombosis is a condition in which the veins leaving the kidney become occluded by thrombus. The condition leads to a reduction in blood drainage by the kidney, which can cause further complications.
Renal vein thrombosis is a rare condition that typically presents with other conditions including nephrotic syndrome, kidney cancer and/or other blood clotting disorders. Renal vein thrombosis occurs more often in adults than in infants, adolescents, or toddlers. However, it is typically more serious in infants, adolescents, or toddlers.
In the United States, the prevalence of renal vein thrombosis remains unknown. It is most commonly associated with nephrotic syndrome, but prevalence rates among these patients vary greatly, ranging from 5% to 60% on average.
Causes and risks
Renal vein thrombosis is uncommon and rare condition but can occur after trauma to the abdomen and/or back as well as due to scar formation, stricture, and/or tumor. It is also, more commonly, associated with nephrotic syndrome.
In infants, toddler and adolescents, renal vein thrombosis can occur due to severe dehydration, which is considered to be much more serious condition than when it occurs in adults. Other possible causes of renal vein thrombosis include blood clotting disorders such as hypercoagulability disorder, protein C or S deficiency, antiphospholipid antibody syndrome, pregnancy, post-renal transplant, Behçet syndrome, extrinsic compression such as lymph nodes, tumor, retroperitoneal fibrosis, or aortic aneurysm, sickle cell anemia, diabetes that affects the kidney, oral contraceptive use, illicit drug abuse, steroid use or thrombophlebitis migrans.
Symptoms
The symptoms of renal vein thrombosis are minimal, unless the vein becomes occluded suddenly. In patients who present with symptoms of renal vein thrombosis typically present with blood in urine or decreased urine volume upon excretion. Other signs of renal vein thrombosis include protein and/or red blood cells upon urinalysis.
Pulmonary embolism (from embolization of the thrombus) may be a sign that a patient has renal vein thrombosis. With pulmonary embolism, patients present with shortness of breath and chest pain made worse by breathing. Infants, toddlers, and adolescents typically present with lower
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