Search Results
Results 351 - 400 of 1759
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Zhang L J - - 2007
PURPOSE: To investigate the prevalence of renal artery aneurysms, and to assess the value of multidetector-row computed tomography (MDCT) in diagnosing renal artery aneurysms. MATERIAL AND METHODS: Altogether, 862 patients underwent arterial-phase contrast-enhanced CT scan of the abdomen in the period November 2003 to October 2005. A search for renal ...
Baril Donald T - - 2007
The management of renal artery stenosis in patients with abdominal aortic aneurysms continues to be complex and technically challenging despite advances in endovascular therapy. There is growing concern about the durability of renal artery stents in the setting of transrenal abdominal aortic endografts. This study reports a single-center experience of ...
Uberoi Jayant - - 2007
BACKGROUND AND PURPOSE: Laparoscopic partial nephrectomy (LPN) has emerged as a minimally invasive treatment for small renal masses. The most common complications include hemorrhage and urinary-fistula formulation. Renal-artery pseudoaneurysm has been described after open nephron-sparing surgery. We present two cases of renal-artery aneurysm following LPN. CASE REPORTS: Two patients with ...
Rautio Riitta - - 2007
Our aim was to treat a clinically silent renal artery aneurysm. The patient was a 76-year-old man with elevated prostate-specific antigen and prostate biopsies with a grade II-III adenocarcinoma who was incidentally found to have an aneurysm in his right renal artery. We performed a successful transcatheter embolization of the ...
Sahin Sinan - - 2007
Aneurysms of the renal artery are rare and have an estimated incidence of 0.09% in the general population. They may be diagnosed incidentally or during the evaluation of related symptoms. They may be followed up or treated either surgically or endovascularly. We present a successful percutaneous treatment of a renal ...
Serter Selim - - 2007
Fibromuscular dysplasia (FMD) is a nonatherosclerotic, noninflammatory vascular disease. FMD of the renal arteries is one of the leading causes of curable hypertension. The simultaneous occurrence of FMD and renal artery aneurysm has been described previously. In this case, we present a fibrodysplastic lesion and an aneurysm in a renal ...
Mak G - - 2007
Renal artery stenosis is a common cause (1-6%) of secondary hypertension. Renal artery stenting has recently been employed as an adjunct to antihypertensive medication. We evaluated 92 patients who underwent renal angiography of whom 30 were stented. There was a reduction (p < 0.01) in blood pressure immediately post renal ...
Kónya András - - 2007
We wanted to determine whether transcatheter Ethiodol-based capillary embolization in combination with carboplatin could improve the efficiency of a 1:1 Ethiodol-ethanol mixture (EEM) to ablate kidneys that been inoculated with VX-2 carcinoma. The right kidney in 34 New Zealand white rabbits were inoculated with fresh VX-2 tumor fragments. One week ...
Lin Yu-Jan - - 2008
Renovascular disease is an important cause of secondary hypertension in children. In contrary to the adult patients whose major cause of renal artery stenosis (RAS) is atherosclerosis, fibromuscular dysplasia is responsible for the renovascular hypertension in most children. Mid-aortic syndrome (MAS) is a rare abnormality referring to an isolated disease ...
Zakashansky Konstantin - - 2007
BACKGROUND: In order to successfully perform aggressive cytoreductive surgery for patients with recurrent epithelial ovarian cancer, resection of retroperitoneal disease in close proximity to major vessels is often required. CASE: We describe a case of a 44-year-old female patient with a history of Stage IV carcinoma of the ovary, who ...
Tsutsui Akio - - 2007
Although intraoperative hemorrhage is a well-recognized complication of open partial nephrectomy, postoperative hemorrhage caused by a renal artery pseudoaneurysm (RAP) after open partial nephrectomy is rare. We presented a case of RAP occurring in an 84-year-old man 3 weeks after right open partial nephrectomy for renal cell carcinoma. The pseudoaneurysmal ...
Demir M K - - 2007
We describe the case of a 40-year-old woman who presented with a pararenal hyaline-vascular type Castleman's disease that had an arterial supply from the renal artery and a draining vein as showed by multidetector CT. Identification of the renal artery relationship to the feeding vessel of the mass is critical ...
Kronzon Itzhak - - 2007
BACKGROUND: Ultrasound evaluation of the abdominal aorta and its branches is usually performed transabdominally. Not infrequently, the image quality is suboptimal. Recently, an intracardiac echocardiography probe has become commercially available. These probes are usually inserted intravenously and advanced to the right heart for diagnostic and monitoring purposes during procedures such ...
Park Kate - - 2007
We report an infant with known unilateral multicystic dysplastic kidney (MCDK) who underwent renal ultrasonography and Doppler spectral waveform analysis for investigation of hypertension. A tardus-parvus waveform was demonstrated in the renal artery on the normal side suggesting either renal artery or more proximal stenosis. Coarctation of the aorta was ...
Cimen Mehmet - - 2007
According to general knowledge, the suprarenal gland is supplied by three sources: the phrenic artery, the abdominal aorta and the renal artery. Since the gland lacks a hilus, and particularly because of its clinical importance, anatomical arterial sources and branching is still not uniform and it needs to be determined ...
Sabharwal Rohan - - 2007
A case of giant renal artery aneurysm in a 63-year-old man is presented. Renal artery aneurysms are rare (incidence of <1%) and this case is one of the largest giant renal artery aneurysms recorded in the literature. This case also demonstrates the value of multidetector spiral CT renal angiography (CTA) ...
Nayak S R - - 2007
Variations in the origin of arteries in the abdomen are very common but with the invention of new operative techniques within the abdominal cavity, the anatomy of abdominal vessels has assumed much more clinical importance. During routine dissection of the abdominal cavity, we came across multiple arterial anomalies involving testicular ...
Ergun Ihsan - - 2007
Renal infarction is a rare cause of acute abdominal and flank pain. Whether it occurs due to thrombosis or embolism, the occlusion of the renal arteries always results in renal infarction. Cigarette smoking is a known risk factor for arterial thrombosis. Both vasoconstrictor and pro-thrombotic effects of smoking lead to ...
Zeina Abdel-Rauf - - 2007
Renovascular hypertension is defined as hypertension caused by renal artery stenosis. The two main etiologies are atherosclerosis and fibromuscular dysplasia. Fibromuscular dysplasia in an accessory renal artery as a cause of renovascular hypertension is uncommon. In this report, we present a relatively uncommon case of renovascular hypertension in a 35-year-old ...
Schlunt Lori B - - 2007
BACKGROUND AND PURPOSE: Multidetector CT angiography (MDCTA) is being used increasingly to evaluate vascular anatomy prior to donor nephrectomy. To improve the ability of MDCTA to predict donor renal anatomy, a novel protocol including four-phase imaging with three-dimensional reconstruction and maximum intensity projections (MIPs) was incorporated into the standard donor ...
Gesase A P - - 2007
The current observations have documented rare vascular anomalies in the right and left kidneys from a male and female cadaver, respectively. In the female left kidney in addition to being supplied by the normal renal artery and vein it contained a left lower polar renal artery and vein. The polar ...
Tarzamni Mohammad Kazem - - 2007
BACKGROUND: Aorta Coarctation (AC) is uncommon condition that in most adult patients is asymptomatic. Diagnosis of AC is made during routine physical examination by detection of Blood Pressure (BP) difference between arm and leg. AIM: To describe a novel renal artery Doppler flow pattern pathognomonic of aortic coarctation. METHODS: We ...
Yakeishi Akira - - 2007
During a gross anatomy course at Kurume University School of Medicine in 2001, an anomaly of the kidneys was found. The lower ends of the kidneys were fused by a renal substance and formed a horseshoe kidney located ventral to the abdominal aorta and inferior vena cava. Both renal hila ...
Unno Naoki - - 2007
A 57-year-old woman was hospitalized with a left renal artery aneurysm (RAA). The aneurysm measured 35 mm in diameter and was located at the renal artery bifurcation. We performed a laparoscopic nephrectomy using a retroperitoneal approach and performed an ex vivo repair of the renal artery. The reconstructed kidney was ...
Sugimoto Toshiro - - 2007
We present a case of a 38-year-old Japanese man with Wegener's granulomatosis complicated with pulmonary-renal syndrome, i.e., diffuse pulmonary hemorrhage and rapidly progressive renal glomerulonephritis. As this is a life-threatening condition, we promptly initiated plasma exchange with intravenous methylprednisolone therapy. Diffuse pulmonary hemorrhage and renal failure were markedly improved. This ...
Jeyabalan Arundhathi - - 2007
Relaxin is emerging as a hormone with important vascular actions. Much of our recently gained knowledge of relaxin in this context has stemmed from investigations of maternal vascular adaptations to pregnancy in which the hormone is turning out to be an important mediator. This chapter is separated into three parts. ...
Unlu Murat - - 2007
OBJECTIVE: To investigate the anatomic and hemodynamic properties of testicular venous drainage and its effects on varicocele formation and reflux using color Doppler ultrasound (US) with emphasis on renal vein entrapment syndrome. MATERIAL AND METHODS: Upper abdominal and scrotal US examinations of 35 varicocele patients and 35 healthy male subjects ...
Kalimanovska-Ostric D V - - 2007
We report a case of a male teenager with severe heart and acute renal failure as the dominant clinical manifestations of renovascular hypertension (RVH) caused by atypical giant cell arteritis (GCA). Unrecognized RVH and treatment of the consequent heart failure by angiotensin-converting enzyme inhibitors (ACEI) probably contributed to progression of ...
Plouin Pierre-François - - 2007
Fibromuscular dysplasia (FMD), formerly called fibromuscular fibroplasia, is a group of nonatherosclerotic, noninflammatory arterial diseases that most commonly involve the renal and carotid arteries. The prevalence of symptomatic renal artery FMD is about 4/1000 and the prevalence of cervicocranial FMD is probably half that. Histological classification discriminates three main subtypes, ...
Hassani Kamran - - 2007
The aortic aneurysm is a dilatation of the aortic wall which occurs in the saccular and fusiform types. The aortic aneurysms can rupture, if left untreated. The renal stenosis occurs when the flow of blood from the arteries leading to the kidneys is constricted by atherosclerotic plaque. This narrowing may ...
Bol A A Department of Cardiology, St Jan Hospital, Ruddershove 10, 8000 Brugge, Belgium. - - 2007
Although vascular involvement in type 1 neurofibromatosis (NF1) is rare, it may lead to renal artery stenosis and renovascular hypertension (RVH). RVH may be treated using antihypertensive drugs, percutaneous transluminal renal angioplasty (PTRA), surgical reconstruction of the renal artery, or nefrectomy. In NF1 the results of PTRA are less predictable ...
Matsumoto Mitsuaki - - 2006
We report the surgical repair of a case of mid-aortic syndrome (MAS) in a 17-year-old female patient. She was initially diagnosed with renovascular hypertension at the age of 12 years. Aortitis syndrome was suspected, and she has been treated with antihypertensive drugs since then. Angiography revealed severe stenosis of the ...
Ozkan U─čur - - 2006
PURPOSE: To determine angiographically the origins and variations of renal arteries. MATERIALS AND METHODS: The study included 855 consecutive patients (163 females, 692 males; mean age, 61 years) living in the Cukurova region of Turkey, who underwent either aortofemoropopliteal (AFP) angiography for the investigation of peripheral arterial disease, or renal ...
Prisant L Michael - - 2006
Fibromuscular dysplasia is a noninflammatory vascular disease that commonly affects the distal two thirds of the renal artery and branch vessels, but occasionally involves other arteries. Progression of stenosis occurs in 16%-38% of renal arteries. Although the etiology is unknown, genetic studies suggest a relationship to the angiotensin-converting enzyme I ...
Nayak Satheesha - - 2006
The knowledge of vascular variations like other anatomical variations, is important during the operative, diagnostic, and endovascular procedures in abdomen. This report describes multiple variations in the upper abdominal vessels as found during the routine dissection in a 60-year-old male cadaver. The variations found were; presence of a celiaco-mesenterico-phrenic trunk, ...
Nazratun N - - 2006
The excess accumulation of advanced glycation end products (AGEs) contributes to the chronic complications of type 2 diabetes mellitus (DM) and renal failure. Biopsy specimens (n = 184) of arterial (n = 92) and venous (n = 92) tissues were obtained (radial artery and cephalic vein) from end-stage renal disease ...
Guérin E - - 2006
Dissection of a renal artery is rare and, in most cases, associated with underlying arterial diseases. Spontaneous renal artery dissection (RAD) is exceptional. We report the case of a young and otherwise healthy man with an isolated dissection of the right renal artery without any obvious origin. Diagnosis was made ...
Allison Matthew A - - 2006
In this study we tested the hypothesis that calcium due to atherosclerosis in the renal arteries would be significantly associated with calcium in multiple other vascular beds, independent of traditional risk factors for cardiovascular disease (CVD). Electron beam computed tomography was conducted in 1461 consecutive asymptomatic patients free of clinical ...
Chiesa Roberto - - 2006
Surgical treatment of pararenal aortic aneurysms, if compared to open surgical repair of infrarenal aneurysms, is technically more demanding and characterized by problems related to organ ischemia. To better define challenges, risks, and results, we analyzed our experience with the treatment of pararenal aortic aneurysms. Between January 1993 and March ...
Rai Prithviraj - - 2006
Reno-vascular disease, along with diabetes mellitus, is the leading cause of dialysis in the elderly population, accounting for 50-66% of cases in patients above 65 years of age. Reno-vascular disease is a broad term, which includes renal artery stenosis, ischemic nephropathy, such as atherosclerotic obstruction, thrombo-embolic phenomenon, nephrosclerosis secondary to ...
Novak Jacqueline - - 2006
Relaxin is a 6 kDa protein hormone produced by the corpus luteum and secreted into the blood during pregnancy in rodents and humans. Growing evidence indicates that circulating relaxin causes vasodilatation and increases in arterial compliance, which may be among its most important actions during pregnancy. Here we investigated whether ...
Shakeri Abolhassan B - - 2007
The variations of renal arteries are considered critical issues that surgeons should have thorough envision and appreciation of the condition. Variations of these vessels may influences urological, renal transplantation and laparoscopic surgeries. We present a case of bilateral accessory renal artery with a striking pre-hilar branching pattern encountered upon digital ...
Balk Ethan - - 2006
BACKGROUND: Atherosclerotic renal artery stenosis is increasingly common in an aging population. Therapeutic options include medical treatment only or revascularization procedures. PURPOSE: To compare the effects of medical treatment and revascularization on clinically important outcomes in adults with atherosclerotic renal artery stenosis. DATA SOURCES: The MEDLINE database (inception to 6 ...
Stanley James C - - 2006
This study was undertaken to characterize the contemporary surgical treatment of pediatric renovascular hypertension. A retrospective analysis was conducted of the clinical data of 97 consecutive pediatric patients (39 girls, 58 boys), aged from 3 months to 17 years, who underwent operation at the University of Michigan from 1963 to ...
Riess Kenneth J - - 2006
BACKGROUND: Cardiovascular disease is the leading cause of morbidity and mortality in kidney transplant recipients (KTR). Two risk factors for cardiovascular disease that have not been examined in this population are arterial compliance and aerobic capacity. The primary objective was to determine small and large artery compliance and aerobic endurance ...
Díaz J M - - 2006
Comprehensive imaging evaluation of kidney donor anatomy is crucial for selecting candidates for living kidney transplantation and for determining the surgical technique to procure the renal graft. In 76 living renal donors we compared the results of preoperative magnetic resonance angiography (MRA) with the intraoperative findings of arterial anatomy. Donors ...
Cardaioli Paolo - - 2006
We report the case of a massive embolism of atheromatous material during stenting of a tight renal artery stenosis, which was prevented by using a distal embolic protection device and aggressive aspiration of the blood through a guiding catheter. A 72-year-old man who was referred to our institution for coronary ...
Weinberger Jeffrey B - - 2006
PURPOSE: To describe the efficacy and morbidity of intentionally covering a main renal artery during symptomatic juxtarenal endovascular aneurysm repair (EVAR). CASE REPORTS: Two patients with symptomatic juxtarenal abdominal aortic aneurysm (AAA) were felt to be at prohibitive risk for open repair. Each underwent EVAR with intentional coverage of 1 ...
Rehan Arshad - - 2007
A 25-year-old female, 17 weeks pregnant presented to our hospital with complaints of progressively increasing dyspnea. She was hypertensive with creatine of 1.0; she was transferred to ICU with multiple medications to control her blood pressure, without success. The patient continued to decompensate, which required intubation. The patient developed acute ...
Das Chandan Jyoti - - 2007
Fibromuscular dysplasia is the most common cause of renovascular hypertension in young patients. Digital subtraction angiography is still the best investigation used to determine the location, extent and complication of renal artery involvement. String of beads appearance (reflecting multiple stenoses), aneurysms, focal or tubular stenosis are classic angiographic appearances. The ...
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