1/158. embolism in a single functioning kidney: report of two cases.2 cases of embolism in single functioning kidneys are reported. In the first case there was an occlusion of the main trunk of the renal artery; the patient was treated by embolectomy. In the second case the occlusion of a major arterial branch was demonstrated; because of the bad general conditions the patient was treated with medical therapy. The authors review the literature and the indications for embolectomy in embolism in a solitary kidney.- - - - - - - - - - ranking = 1keywords = occlusion (Clic here for more details about this article) |
2/158. Bilateral renal infarction secondary to paradoxical embolism.Paradoxical embolism is an uncommon but increasingly reported cause of arterial embolic events. Involvement of the kidney is rarely reported. autopsy studies suggest, however, that embolic renal infarction is underdiagnosed antemortem. We report a case of bilateral, main renal artery occlusion and acute renal failure secondary to paradoxical embolism. Clinical and laboratory data at presentation were not suggestive of renal infarction. Support for the diagnosis of paradoxical embolism, which most commonly occurs across a patent foramen ovale, was made by contrast echocardiography, which provides a sensitive method for detecting right-to-left intracardiac shunts. The often subtle presentation of renal infarction suggests patients with peripheral or central arterial embolic events should be carefully observed for occult renal involvement. Contrast echocardiography should be performed when renal infarction occurs without a clear embolic source to evaluate for paradoxical embolism.- - - - - - - - - - ranking = 0.5keywords = occlusion (Clic here for more details about this article) |
3/158. renal artery embolism: therapy with intra-arterial streptokinase infusion.Two patients with acute renal artery embolism were reported. One patient had a history of rheumatic valvular heart disease and the other patient had hereditary cardiomyopathy. Both patients had atrial fibrillation on physical examination. Both patients presented with acute back pain and one patient had hematuria. The final diagnosis of acute renal artery embolism was made after one to three days of hospitalization and renal angiography was finally done documenting complete occlusion of the main branch of the renal artery on one side. Intra-arterial streptokinase infusion 5,000 unit per hour was given to both patients using an arterial pump for 17 hours to 30 hours with complete recanalization of the intrarenal branches and complete recovery of signs and symptoms of renal artery embolism although the renal scan still showed diminished renal function.- - - - - - - - - - ranking = 0.5keywords = occlusion (Clic here for more details about this article) |
4/158. Acute renal artery occlusion.Eeven cases of acute renal artery occlusion are reviewed. The clinical presentation and features of the condition are discussed and reasons for delays in diagnosis are examined. Two cases in whom active treatment was carried out are described in detail. Acute renal artery occlusion is most common in patients with severe cardiac disease and this may influence decisions on treatment.- - - - - - - - - - ranking = 3keywords = occlusion (Clic here for more details about this article) |
5/158. Staged thoracic and abdominal aortic aneurysm repair using stent graft technology and surgery in a patient with acute renal failure.A 52-year-old male presented with severe hypertension and acute renal failure. carbon dioxide (CO(2)) angiography identified a saccular thoracic aortic aneurysm, right renal artery stenosis, left renal artery occlusion, an infrarenal aortic aneurysm, celiac artery, and inferior mesenteric artery (IMA) orificial stenoses. Via an anterior retroperitoneal approach, bilateral renal artery thromboendarterectomy, infrarenal aortic aneurysmectomy, and IMA reimplantation were performed. The patient's tortuous iliac arteries were straightened to permit future passage of a thoracic stent graft by mobilizing the aortic bifurcation and anastomosing it to a Dacron graft within 4 cm of the renal vessels. Two weeks later, a stent graft was placed via a femoral incision utilizing CO(2) angiography, successfully excluding the saccular thoracic aneurysm. Recovery from both procedures was quick, with rapid return of renal function, and alleviation of the hypertension. At 8 months follow-up, his renal arteries and aorta are patent.- - - - - - - - - - ranking = 0.5keywords = occlusion (Clic here for more details about this article) |
6/158. fibromuscular dysplasia: a rare cause of cilioretinal artery occlusion in childhood.OBJECTIVE: To report a case of cilioretinal artery occlusion with angiographic findings characteristic of the "string of beads" associated with renovascular hypertension secondary to fibromuscular dysplasia of the renal artery in a child. DESIGN: Case report. INTERVENTION: The patient underwent ex vivo renal artery reconstruction with saphenous vein graft and reimplantation. MAIN OUTCOME MEASURES: The main clinical outcomes were control of severe hypertension, reversible hypertensive retinopathy, and improvement of vision. RESULTS: Revascularization of the kidney improved renal function, and renovascular hypertension was clearly improved. visual acuity improved to 20/200. CONCLUSIONS: A child with hypertensive retinopathy and arterial occlusion in the retina should undergo investigation to rule out a surgically curable hypertension. magnetic resonance angiography of extrarenal vessels may reveal other sites of involvement of fibromuscular dysplasia. Evaluation and early diagnosis of renovascular hypertension will prevent severe end-organ damage.- - - - - - - - - - ranking = 3keywords = occlusion (Clic here for more details about this article) |
7/158. Renovascular hypertension observed in a patient with antiphospholipid-antibody syndrome.The antiphospholipid-antibody syndrome is associated with an increased incidence of arterial and venous thrombosis. Although renal infarction has been observed in these patients, stenotic lesions of the renal artery associated with the antiphospholipid-antibody syndrome have not been reported. A 47-year-old male with a history of hypertension for 7 years developed blurred vision secondary to thrombotic occlusion of the central retinal artery. Laboratory and radiologic examinations revealed renal dysfunction, a positive anticardiolipin antibody, and narrowing of the right renal artery. Successful percutaneous transluminal renal artery angioplasty resulted in normalization of the blood pressure and recovery of renal function.- - - - - - - - - - ranking = 0.5keywords = occlusion (Clic here for more details about this article) |
8/158. Acute renal failure after redo thoracoabdominal aortic aneurysm repair in a patient with a solitary kidney: successful percutaneous treatment.PURPOSE: To report the successful percutaneous treatment of renal artery stenosis that precipitated renal failure following surgical repair of a thoracoabdominal aortic aneurysm (TAAA). methods AND RESULTS: A 70-year-old woman with a solitary kidney became anuric 2 hours after urgent repair of a symptomatic true aneurysm of the Carrel patch from an 8-year-old TAAA repair. After medical treatment failed, aortography was performed, identifying complete occlusion of the solitary renal artery. Balloon dilation and implantation of a Palmaz stent restored renal perfusion and improved function. At 6-month follow-up, she was normotensive and her creatinine within normal limits. CONCLUSIONS: renal artery stenosis or occlusion is a treatable cause of acute renal failure after TAAA repair. Percutaneous treatment options are likely to be better tolerated than surgical revascularization in this patient population.- - - - - - - - - - ranking = 1keywords = occlusion (Clic here for more details about this article) |
9/158. Dramatic recovery of renal function after 6 months of dialysis dependence following surgical correction of total renal artery occlusion in a solitary functioning kidney.Revascularization of renal artery stenosis for the treatment of hypertension is an established procedure. In selected clinical scenarios, successful revascularization procedures may preserve or restore renal function. We present a 31-year-old man who underwent successful renal revascularization of a solitary functioning kidney after being dialysis dependent for approximately 190 days. He had dramatic improvement of renal function and has remained off dialysis since his surgery 18 months ago. He continues to have severe but controllable hypertension.- - - - - - - - - - ranking = 2keywords = occlusion (Clic here for more details about this article) |
10/158. moyamoya disease complicated with renal artery stenosis and nephrotic syndrome: reversal of nephrotic syndrome after nephrectomy.A 7-year-old boy with moyamoya disease developed sustained hypertension, nephrotic syndrome, hyperreninemia, and occlusion of the right renal artery. After right nephrectomy, hyperreninemia and hypertension improved. proteinuria was resolved after nephrectomy, in parallel with the decrease in plasma renin activity. moyamoya disease can cause nephrotic-range proteinuria, which is caused hemodynamically by hyperreninemia.- - - - - - - - - - ranking = 0.5keywords = occlusion (Clic here for more details about this article) |
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