Search Results
Results 501 - 550 of 1757
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Thony F - - 2005
The aim of this study is to describe renal artery entrapment (RAE) by the diaphragmatic crus and to elucidate the diagnostic and therapeutic approach to this entity. From 1995 to 2002, 15 patients (mean age 65) were found to have a RAE. They were investigated by CT scan (n=14) and/or ...
Hur Jin-Wuk - - 2005
Erythromelalgia is a kind of cutaneous manifestation, which appears as a thrombotic complication in patients with myeloproliferative disorders such as essential thrombocythemia and polycythemia vera. It is characterized by red, congested distal extremities and a painful burning sensation, and is usually confined to the feet and one or more toes ...
Han Myo - - 2005
Renal artery lesions associated with neurofibromatosis may involve stenosis and aneurysm formation at all levels of the renal artery to the intraparenchymal branches, and usually are associated with hypertension. A 13-year-old boy with type I neurofibromatosis and severe hypertension presented with multiple aneurysms and multiple stenotic lesions in the renal ...
Uder Michael - - 2005
Angioplasty and stent therapy for stenoses of the renal artery have long been part of the everyday life of interventional radiologists. Newer studies, however, challenge the clinical significance of the method. A decisive advantage of endovascular techniques for the treatment of arterial hypertension as opposed to therapy with modern antihypertensives ...
Tanemoto Masayuki - - 2005
We describe a case of renovascular hypertension with renal artery stenosis concealed by aneurysms. Arteriography demonstrated no apparent renal artery stenosis, but did reveal aneurysms on the left renal artery. Captopril-loaded renoscintigraphy could not detect disturbed renal perfusion. High basal and exaggerated plasma renin activity after captopril administration were the ...
Tanemoto Masayuki - - 2005
Atherosclerotic renal artery stenosis (ARAS) is a significant cause of end stage renal dysfunction (ESRD) among the elderly. Although early detection of ARAS and induction of adequate treatment could reduce the incidence of ESRD, there have been few reports about parameters predictive of ARAS among Japanese. In this study, we ...
Chauvapun Joe Potchanard - - 2005
We report a case of a symptomatic renal arteriovenous aneurysm in a 4-year-old pediatric patient. We were able to diagnose the lesion by means of a Doppler renal sonogram with color duplex interrogation. The diagnosis was confirmed by digital subtraction angiography. On the basis of the angiographic findings, the aneurysm ...
Kostic D M - - 2005
A case of right renal artery distal aneurysm associated with juxtarenal abdominal aortic aneurysm in a 75-year-old male, who presented with abdominal and back pain and chronic renal failure, is reported. The abdominal aortic aneurysm was repaired with a bifurcated Dacron graft. The right kidney was simultaneously explanted, ex vivo ...
Ferrario Franco - - 2005
"ANCA-associated vasculitis" are Wegener's Granulomatosis, Micropolyarteritis and its renal-limited variant (previously called idiopathic necrotizing glomerulonephritis). According to the "Chapel Hill Consensus Conference" classification, ANCA-associated vasculitis are characterized by prevalent involvement of small-size vessels, whereas medium and large-size arteries involvement is the marker of Polyarteritis Nodosa. But the vessel size-based classification ...
Mufarrij Patrick - - 2005
A kidney with a compressive process that results in hyperreninemic hypertension is often referred to as a "Page" kidney. We present a case of "Page" kidney that resulted as a complication of percutaneous antegrade endopyelotomy. The patient had a typical presentation and classic radiologic signs of such a process. Surgical ...
Yokota Eri - - 2005
The anatomical relationship between the kidney position and its arterial supply was investigated in 21 mammals, 1 bird, and 3 reptiles (n = 1 for each species) and in 43 human cadavers. The following observations were made. (1) Although the right kidney was located caudal to the left kidney in ...
Kawamoto Satomi - - 2005
OBJECTIVE: The objective of our study was to assess whether both renal arteries and renal veins can be evaluated using single-phase MDCT data sets alone to eliminate the need for both arterial and venous phase data sets. MATERIALS AND METHODS: One hundred consecutive potential living renal donors who underwent 4-MDCT ...
Yang X - - 2005
The case history is described of a man in his 73rd year who was one of the oldest surviving patients with uncorrected tetralogy of Fallot (ToF) before succumbing with renal failure. Factors contributing to his longevity included small pulmonary arteries and presumed slow development of subpulmonary obstruction together with moderate ...
Kacar Serdar - - 2005
BACKGROUND: Laparoscopic donor nephrectomy has gained popularity throughout the world recently. The more centers became experienced the more this technique began to be used, even in extreme cases. Kidneys with multiple renal arteries are one of the difficult cases for laparoscopic donor nephrectomy. PATIENTS AND METHOD: Thirty living laparoscopic donor ...
Rosales A - - 2005
OBJECTIVE: We describe our experience with the transient clamping of the renal artery during laparoscopic partial nephrectomy for renal cancer with a double loop clamping device, inspired by the Rumel tourniquet. The silastic rubber loop is positioned around the renal artery and clinched, thus achieving arterial occlusion. METHODS: From November ...
Conlon Peter J - - 2005
BACKGROUND: Acute renal failure (ARF) is a frequent complication of coronary artery bypass grafting (CABG) surgery and is strongly associated with perioperative morbidity and mortality. We hypothesized that renal artery stenosis (RAS), causing occult renal ischemia, may be an important factor contributing to development of ARF after CABG surgery. METHODS: ...
Heye Sam - - 2005
We report on a patient who presented with perforation of the left main renal artery as a complication of a percutaneous retroperitoneal drainage procedure. Only a small number of cases of iatrogenic main renal artery perforations have been reported, none of them due to a percutaneous drainage attempt. Endovascular treatment ...
Haesemeyer Scott W - - 2005
Percutaneous renal artery angioplasty and stent placement have demonstrated safety and effectiveness in the treatment of selected patients with renovascular hypertension and ischemic nephropathy. Major complications have been predominantly confined to the affected renal artery and kidneys, including renal artery dissection and/or thrombosis, distal embolization, and contrast-related nephropathy. We report ...
Siablis Dimitrios - - 2005
PURPOSE: We present our experience with percutaneous rheolytic treatment with the AngioJet thrombectomy catheter for acute renal-artery thrombosis. CASE REPORT: A 63-year-old male patient with renal-artery thrombosis presented 48 hours after the onset of acute nonradiating flank pain. Thrombosis was documented by CT angiography, 99mTc-DTPA, and digital subtraction angiography. A ...
Tanaka Hirofumi - - 2005
Arterial stiffness and wave reflections exert a number of adverse effects on cardiovascular function and disease risk and are associated with a greater rate of mortality in patients with end-stage renal failure and essential hypertension. Accordingly, the prevention and treatment of arterial stiffness are of paramount importance. Because arterial stiffening ...
Conley Buford R - - 2005
Current treatment options for aortic aneurysms are suboptimal and their pathogenic mechanisms remain unclear. We propose the existence of a coordinated multi-node baroreceptor network that measures pressures at all vascular bifurcations and enables system-wide hemodynamic coordination and vasomotor regulation, in accordance with the principle of Bernoulli. While the presence of ...
Stadlmaier E - - 2005
Midaortic syndrome is a variety of aortic coarctation, located in the distal thoracic aorta, the abdominal aorta or both, involving the intestinal and renal vessels, usually presenting with renovascular arterial hypertension. Underlying conditions are thought to be Takayasu's arteritis, von Recklinghausen's disease, and connate hypoplasia. Celiac disease is an inflammation ...
Tabata Minoru - - 2004
BACKGROUND: Renal dysfunction is a predictor of increased morbidity and mortality after coronary artery bypass grafting, whether it is dialysis-dependent or not. Several studies have shown the efficacy of off-pump technique in reducing morbidity and mortality in patients with renal dysfunction. However, the actual effect of renal dysfunction in off-pump ...
Su Chin-Ming - - 2004
Primary dissecting aneurysms of the renal artery are exceedingly rare. The triad of flank pain, hematuria, and hypertension of acute onset in the absence of urinary obstruction should suggest this rare condition. We report a case of spontaneous dissecting aneurysm of the renal artery treated using conservative medical treatment. The ...
Kuniyoshi Yukio - - 2004
PURPOSE: To evaluate the effectiveness of selective visceral perfusion during repair of an thoracoabdominal aortic aneurysm (TAAA), we compared the postoperative renal and hepatic functions (blood urea nitrogen, serum creatinine, total bilirubin, glutamate pyruvate transaminase) between the two groups with and without perfusion. PATIENTS AND METHODS: We operated on 52 ...
Zeller Thomas - - 2004
Renal artery stenosis may initiate or exacerbate arterial hypertension and/or renal insufficiency. During the last decade, technical improvements of diagnostic and interventional endovascular tools have led to more widespread use of endoluminal renal artery revascularization and broader indications for this type of therapy. Since the first renal artery angioplasties performed ...
Bates Mark C - - 2004
Left heart catheterization was performed in response to progressive congestive heart failure of uncertain etiology in a 59-year-old male. The coronary arteries were normal but screening abdominal aortography revealed a large arterial venous communication between the left inferior segmental renal artery and the ipsilateral renal vein. The massive size and ...
Pereira-Sampaio Marco A - - 2004
PURPOSE: We present a systematic study of the anatomical relationships between intrarenal arteries and the kidney collecting system in pigs. MATERIALS AND METHODS: The intrarenal anatomy (collecting system and arteries) was studied in 91, 3-dimensional endocasts of the kidney collecting system together with the intrarenal arteries. RESULTS: Some anatomical details ...
Khankan Azzam A - - 2004
PURPOSE: We have developed a spherical embolic agent, superabsorbent polymer microspheres (SAP-MS). The aim of this study was to examine the embolic effects of SAP-MS in comparison with polyvinyl alcohol (PVA) particles and tris-acryl gelatin microsphere (Embosphere Microsphere; EM) in a rabbit renal model. MATERIALS AND METHODS: The right kidneys ...
Lewis Gareth R - - 2004
OBJECTIVE: To determine the accuracy of spiral computed tomography (CT) imaging of donor venous anatomy by comparing CT angiography (CTA) and operative findings, for both laparoscopic (LDN) and open donor nephrectomy. PATIENTS AND METHODS: LDN presents unique surgical challenges, particularly with complex venous or arterial anatomy. The limitations of surgical ...
Dieter Robert S - - 2004
A 64-year-old man was referred for vascular evaluation before renal transplantation for ischemic nephropathy. In the past he had undergone bilateral renal artery revascularizations using saphenous vein. At the time of transplant evaluation, he was found to have bilateral aneurysms of the saphenous veins used to bypass his renal artery ...
Senekowitsch C - - 2004
In the last decade the therapeutic concept of renovascular disease has changed. The numbers of primary surgical revascularisations have fallen substantially due to the invention of percutaneous transluminal angioplasty (PTA). Retrospective data analysis. From September 1992 to December 2001, 42 patients were operated on 49 renal arteries at our institution. ...
Davidović Lazar B - - 2004
Horseshoe kidney presents a special challenge during surgery of the abdominal aorta. The aim of this study was to evaluate the morbidity and define optimal management based on clinical histories of 15 patients with horseshoe kidney who underwent surgical procedures on the abdominal aorta over a 20-year period. There were ...
Chueh S-C J - - 2004
We retrospectively reviewed our last 12 laparoscopic donor nephrectomies (LDNs) in which both the renal artery and the renal vein were controlled using 2 Hem-o-lok clips (Weck Closure Systems, Research Triangle Park, NC, United States) on the proximal sides and the vessels were divided without securing the graft-side vessels (group ...
Park Sungha - - 2004
Renal artery stenosis is an important cause of secondary hypertension as well as ischemic nephropathy. The purpose of this study was to determine the clinical predictors in patients with renal artery stenosis in a population referred for coronary angiography. From March 1998 to July 1999, 1459 patients undergoing coronary angiography ...
Chan P N - - 2004
A case of severe lumbar artery bleeding as a complication of percutaneous nephrostomy (PCN) is presented. A 70-year-old man with coagulation disorder (factor VIII deficiency) underwent left PCN because of left hydronephrosis and abnormal renal function. The procedure was complicated by a major haemorrhage from the left first lumbar artery ...
Murakami T - - 2004
Abdominal aortic aneurysm (AAA) is rarely associated witha congenital pelvic kidney. To date only 11 cases have been reported in the literature in which a solitary pelvic' kidney was associated in only 1 patient. Repair of thesaneurysm is technically demanding because the abnormal origin of the renal arteries presents the ...
Wang S-M - - 2004
The correlations of the mean values of resistance index (RI) of the distal interlobular, arcuate, and interlobal arteries of the kidneys were evaluated with HDI 5000 ultrasonographic system using a 2- to 5-mHz scan probe under the power Doppler detection mode in 60 patients with various native renal conditions and ...
Ryan Sean V - - 2004
Surgical management of juxtarenal aortic (JR-Ao) aneurysms and occlusive disease may include supraceliac aortic clamping, a retroperitoneal approach, or medial visceral rotation. The authors report their results using preferential direct suprarenal aortic clamping via a midline transperitoneal incision. Between July 1, 1992, and July 31, 2001, they treated 58 patients ...
Axelrod David J - - 2004
After successful renal artery angioplasty and stent placement, a patient in a fully anticoagulated state developed hypotension and flank pain. Review of the intraprocedural angiogram demonstrated transcortical position of the guide wire. Computed tomography of the abdomen revealed a large perinephric hematoma. Although only a single renal artery branch was ...
Tan S P - - 2004
BACKGROUND: Catheter angiography is traditionally used to determine renal arterial anatomy in live renal donors. Three-dimensional (3D) contrast-enhanced magnetic resonance imaging (MRA) has been suggested as a noninvasive replacement. We assessed the possibility of using MRA in live renal donors in Malaysia. METHODS: Twenty-six consecutive live renal donors were recruited ...
Geary Grayson G - - 2004
BACKGROUND: Significant renal artery stenosis is being increasingly diagnosed and interventional cardiologists are taking on the unfamiliar role of deploying renal stents. We describe our technique for renal artery stenting using techniques and equipment similar to that used in coronary stenting and present early results. METHODS: Thirty-two patients with significant ...
Takei Hiroyuki - - 2004
A 34-year-old Japanese man admitted to hospital with pneumonia had previously undergone surgery for paranasal sinusitis and also for the clipping of an aneurysm at the origin of the anterior choroidal artery after subarachnoid hemorrhage. Laboratory tests performed at the present admission showed renal insufficiency and serological findings of raised ...
Murphy Timothy P - - 2004
OBJECTIVE: Our purpose was to review data from Medicare physician claims to ascertain differences in annual volumes of renal artery interventions versus surgery and differences in utilization of renal artery interventions among geographic regions according to physician provider type between 1996 and 2000. MATERIALS AND METHODS: We analyzed claims submitted ...
AbuRahma Ali F - - 2004
Power Doppler ultrasonography displays an estimate of the entire power contained in that part of the received radiofrequency ultrasound signal for which a phase shift corresponding to the motion of the target is detected. In contrast, conventional color Doppler imaging displays Doppler frequency shift information. Few reports have been published ...
van Onna Marieke - - 2004
It is largely unknown to what extent genetic abnormalities contribute to the development of atherosclerotic renal artery disease. Among the potential candidate genes, those of the renin-angiotensin system and the endothelial nitric oxide synthase (eNOS) rank high because of their importance in the atherosclerotic process. We investigated the association of ...
Loukas Marios - - 2004
Dissection of an adult male cadaver revealed the presence of an accessory left testicular artery in addition to the normal right and left testicular arteries. In this case the accessory left testicular artery originated from the ventrolateral wall of the descending aorta. The origin was located between the superior mesenteric ...
Rigatelli Gianluca - - 2004
PURPOSE: Peripheral atherosclerosis (renal and aortoiliac localizations) are frequently detected in aged patients with concomitant coronary artery disease (CAD): the risk of finding peripheral disease is increased in patients with CAD. Angiography of the aortoiliac vessels performed at the time of coronary angiography may detect any occult renal artery stenosis ...
Di Valentino Marcello - - 2004
PURPOSE: To present a case in which thrombus aspiration, urokinase, and abciximab were used to recanalize a sudden acute thrombotic occlusion of the right renal artery during percutaneous renal angioplasty. CASE REPORT: A 72-year-old man with severe arterial hypertension, impaired renal function, and peripheral artery disease was referred for interventional ...
Ueda Takuya - - 2004
OBJECTIVE: To evaluate selective intra-arterial 3-dimensional computed tomography (3D-CT) angiography as a tool for the preoperative evaluation of nephron-sparing surgery (NSS). METHODS: Twenty-three patients with renal cell carcinoma indicating NSS underwent selective intrarenal 3D-CT angiography. The time-lapse dual-phase technique was used for simultaneous vascular and urographic visualization. The 3D images ...
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