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Results 251 - 300 of 1768
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Geldof K - - 2008
Lumbar arterial bleedings are rare but potentially life threatening. We report a case of an isolated right lumbar arterial bleeding after radical nephrectomy for renal infarction with infected perirenal haematoma. The diagnosis was suggested by computed tomography and confirmed with angiography. Definitive treatment of this vascular injury was obtained after ...
Stanley James C - - 2008
Abdominal aortic coarctation is uncommon and often complicated with coexisting splanchnic and renal artery occlusive disease. This study was undertaken to define the clinical and anatomic characteristics of this entity, as well as the technical issues and outcomes of its operative treatment. Fifty-three patients, 34 males and 19 females, underwent ...
Trunfio R - - 2008
INTRODUCTION: Surgical treatment of renal artery aneurysms is inevitably associated with temporary renal artery occlusion and risk of ischemic injury. We present a technique for renal artery grafting and aneurysm exclusion without interrupting renal blood flow. REPORT: A symptomatic renal artery aneurysm was bypassed with a venous graft between the ...
Castillo Octavio A - - 2008
BACKGROUND AND PURPOSE: Renal artery aneurysm is a rare occurrence. We report our experience in the management of 2 symptomatic renal artery aneurysms with laparoscopic approach. MATERIAL AND METHODS: Two patients, male and female, mean age 44 years (range: 43 to 45 y), diagnosed with left renal artery aneurysms during ...
Chai Jee Won - - 2008
OBJECTIVE: To determine the accuracy of the use of multi-detector row CT (MDCT) to predict vascular anatomy in living kidney donors and to reveal the prevalence of vascular variations in a Korean population. MATERIALS AND METHODS: A total of 153 living kidney donors that had undergone preoperative CT and nephrectomy, ...
Clemente Alberto - - 2009
Fibromuscular dysplasia (FMD) is one of the most common causes of renovascular hypertension in children and women. It is characterized by short multiple stenoses alternated to focal expansions that usually involve the lateral third of the renal artery. Digital subtraction angiography is considered the most accurate method in the diagnosis ...
Gravante Gianpiero - - 2008
The shortage of organs has forced transplant surgeons to use grafts from marginal donors, even those presenting with important vascular alterations. In such cases, in-depth knowledge of the vascular anatomy and its variants, the correct identification and preservation of the arterial supply, and familiarity with microsurgical techniques for vascular reconstruction ...
Damascelli Bruno - - 2008
A large aneurysm of the left renal artery was found incidentally during abdominal ultrasound in a 39-year-old woman with no medical or family history of cardiovascular disease. Vascular pathology with a dysplastic appearance was confirmed by magnetic resonance angiography and the patient was offered transcatheter embolization. Since the position and ...
Bavil Abolhassan Shakeri - - 2008
Celiac artery aneurysm (CAA) is a rare condition, which occasionally occurs in association with such visceral aneurysms as splenic, common hepatic, left hepatic, superior mesenteric and renal arteries. We describe our observation of a patient with CAA and bilateral main renal artery aneurysm. To the best of our knowledge, a ...
Hager Eric - - 2008
Anatomic anomalies of the infrarenal aorta and iliac arteries are rare. We report a 39-year-old man who presented with an ileo-cecal fistula secondary to Crohn disease. A computed tomography scan and subsequent arteriography noted his aorta bifurcated immediately inferior to the main renal arteries, at the level of the second ...
Hegde Umapati N - - 2008
Aneurysm formation constitutes 0.5 to 1% of all vascular complications in transplant patients. Aneurysms may result from infection, injury during procurement or preservation, faulty suture technique or trauma. Transplant renal artery aneurysm presents with hypertension, graft dysfunction and bleeding. We report a case of percutaneous covered stent-graft for recurrent aneurysm ...
Kok Niels F M - - 2008
BACKGROUND: Live donor kidneys with multiple arteries are associated with surgical complexity for removal and increased rate of recipient ureteral complications. We evaluated the outcome of vascular imaging and the clinical consequences of multiple arteries and veins. METHODS: From 2001 to 2005 data of 288 live kidney donations and transplantations ...
Hirota Takuo - - 2008
Although the kidneys are the major source of proinflammatory cytokines, association of tumor necrosis factor-alpha (TNF-alpha) with severity of atherosclerosis or kidney function in diabetic patients is unclear. Two hundred type 2 diabetic patients and 30 age-matched nondiabetic subjects consecutively admitted to our hospital were enrolled. The Agatston coronary artery ...
Zeller Thomas - - 2008
Currently, angiography is still considered to be the gold standard for the diagnosis of a renal artery stenosis (RAS). However, angiography is invasive and carries the potential risk of haematoma, pseudoaneurysm, contrast agent induced nephropathy, and athermanous embolization. Color-coded duplex ultrasound is a noninvasive frequently repeatable bed-side examination and is ...
Kang Kyung Pyo - - 2008
Renal artery dissection may be caused by iatrogenic injury, trauma, underlying arterial diseases such as fibromuscular disease, atherosclerotic disease, or connective tissue disease. Radiological imaging may be helpful in detecting renal artery pathology, such as renal artery dissection. For patients with acute, isolated renal artery dissection, surgical treatment, endovascular management, ...
Tarzamni M K - - 2008
The aim of this study was to determine the pattern and character of the renal arteries in patients referred for preoperative or diagnostic evaluation of the renal or abdominal arteries by multi-detector computed tomography and, by comparing the arterial anatomy of the right and left kidneys, to evaluate the effect ...
Stancanelli Benedetta - - 2008
BACKGROUND: Although the association of renal artery stenosis with coronary artery disease is well established, the best cutoff of diseased coronary vessels predicting atherosclerotic narrowing of renal artery remains still undefined. METHODS: In 109 consecutive patients (78/31 M/F) submitted to elective coronary angiography because of effort angina, renal angiography was ...
Giavroglou Constantinos - - 2009
We describe the clinical course of a 5-year-old girl with severe arterial hypertension that was uncontrollable with antihypertensive medication. Renal angiography revealed bilateral renal artery stenoses. Because percutaneous transluminal renal angioplasty (PTRA) failed to dilate the stenotic lesions, a renal artery bypass grafting in both renal arteries was performed. The ...
Zelenák Kamil - - 2009
Partial nephrectomy can be associated with vascular complications. Computed tomography (CT) with CT angiography is ideal for noninvasive imaging of this process. The treatment of choice is selective embolization. Successful transcatheter embolization of right renal subsegmental artery pseudoaneurysm with arteriovenous fistula and extravasations using Onyx was performed in a 66-year-old ...
Jeanmonod Rebecca - - 2008
Renal artery aneurysms, once thought to be rare, are diagnosed more frequently due to the increasing use of computed tomography, angiography, and other imaging to delineate pathology. The incidence is less than 1% in the general population,(1,2) and increases to 2.5% in the hypertensive population undergoing angiography.(3) Incidence approaches 10% ...
Henry Michel - - 2008
PURPOSE: To describe a new type of stent consisting of a 3-dimensional (3D) braided tube made of 2 interconnected layers without any covering to treat a renal artery aneurysm. CASE REPORT: A 78-year-old hypertensive man with multiple comorbidities was incidentally found to have a large (28- x 30 mm) saccular ...
Saba L - - 2008
BACKGROUND: Renal artery stenosis may produce hypertension, and this condition is referred to as renovascular hypertension (RVH). PURPOSE: To evaluate, by using multidetector-row spiral computed tomographic angiography (MDCTA), whether a relationship between accessory renal artery stenosis and hypertension may be hypothesized. MATERIAL AND METHODS: 214 patients (142 males, 72 females; ...
Gutta Rao - - 2008
Renal artery aneurysm is a rare condition that has an unclear etiology. Although some patients present with symptoms of hypertension, pain, hematuria, or rupture, the majority are asymptomatic. Traditional surgical repair of renal artery aneurysms is often complex and may require ex vivo repair and reimplantation of the kidney if ...
Trimarchi Santi - - 2008
Descending thoracic and abdominal aortic coarctations are characterized by a segmental narrowing that frequently involves the origin of the visceral and renal arteries. Optimal primary treatment is debated, being reported for both surgical and percutaneous complications. We describe our surgical experience with two youths presenting with failure of distal descending ...
Mondshine Ross T - - 2008
The present report describes two cases of T1b (>4 cm) renal cell carcinoma (RCC) treated with superselective embolization and radiofrequency ablation in the setting of renal artery stenosis and abdominal aortic aneurysm, respectively. In the first case, a solitary functioning kidney was treated with stent placement immediately before RCC embolization. ...
Shoja Mohammadali M - - 2008
The peri-hilar (extra-parenchymal) branching pattern of the renal artery is important for surgeons to know prior to kidney transplantation. The aim of this study was to identify the variations in peri-hilar branching pattern and morphology of the main renal artery. Arteriograms of 81 kidneys were examined. After marking the renal ...
Piffaretti Gabriele - - 2008
Acute renal artery occlusion is a rare but threatening problem; optimal therapeutic treatment remains a challenge, and ultimate outcomes are still to be defined. In the last decades, several reports or short-case experiences have been reported describing the use of selective infusion of lytic agents into renal artery to treat ...
Ponsky Lee - - 2008
OBJECTIVES: To evaluate the safety and reliability of the Hem-o-lok clips for the control of the renal artery during laparoscopic nephrectomies. METHODS: Our multi-institutional working group compiled a retrospective review of all laparoscopic nephrectomies (radical nephrectomy, simple nephrectomy, nephroureterectomy, and donor nephrectomy) performed by surgeons in our group. For each ...
Malagò Roberto - - 2008
Fibromuscular dysplasia is the most common cause of renovascular hypertension in young patients. It primarily involves the renal and carotid arteries, and it is less common in the coronary, iliac, and visceral arteries. Digital subtraction angiography is still the best investigation to determine the location, extent, and complications of renal ...
Box Geoffrey N - - 2008
BACKGROUND AND PURPOSE: Natural Orifice Transluminal Endoscopic Surgery (NOTES) using the daVinci robot (Intuitive Surgical, Sunnyvale, CA) has never been applied to urologic surgery. Here we present our initial experience with a combined transvaginal and transcolonic, single-port, robot-assisted NOTES nephrectomy. METHODS: An acute experiment was performed in a female farm ...
Wu Tai-Cheng - - 2008
BACKGROUND: The frequency, associated risk factors and associated vascular disorders in renal artery disease have not been studied in young ischemic stroke patients. METHODS: From February 1999 to June 2006, we retrospectively reviewed a total of 152 younger ischemic stroke patients (< or = 50 y/o). Another 30 older ischemic ...
Lachat Mario - - 2008
This article describes a new, less invasive prosthetic graft anastomotic technique that uses self-expanding stent grafts that are "telescoped" into aortic branches. This method, the VORTEC (Viabahn Open Revascularization TEChnique), obviates the need for potentially difficult complete vessel exposure and graft anastomoses, thereby reducing the duration of flow interruption and ...
Bakoyiannis C - - 2008
The aim of this study was to report an assisted or totally laparoscopic approach for renal revascularization in patients with congenital renal vascular anomalies during endovascular abdominal aneurysm repair (EVAR). In three patients with an ectopic main or a large accessory renal artery (>3mm) arising from the aneurysm, laparoscopic exposure ...
Muhs Bart E - - 2008
Different endograft configurations (fenestrated, transrenal, infrarenal) may varyingly affect aortic side branch movement. Renal artery motion was evaluated with 64-slice dynamic cine-computed tomography angiography before and after endovascular aneurysm repair in 16 patients (46 renal arteries). Center-of-mass displacement of the renals was determined per heartbeat for before repair for 3 ...
Ohta Yuko - - 2008
PURPOSE: Resistance index (RI) is widely used for the evaluation of circulatory resistance and atherosclerosis with Doppler sonography, but differences in RI among vascular beds have not been fully elucidated. The present study was designed to evaluate the relationship between renal and carotid artery RI and to compare their relative ...
Urbano José - - 2008
PURPOSE: Cholesterol microembolization may explain some treatment failures after renal artery stent placement. The identification of cholesterol crystals may provide significant help in diagnosing the real frequency and severity of this complication. The aim of the present study was to examine the efficacy of polarized light imaging in the detection ...
Kansal Sheru - - 2008
Renal artery embolism was first described in 1940, but it is only recently becoming recognized as a clinically significant entity. Although relatively uncommon, it is clearly responsible for considerable morbidity in patients who experience it. The pathogenesis is typically related to cardiac thrombus formation with subsequent embolization, although other etiologies ...
Mei Que-lin - - 2008
BACKGROUND: Endothelial progenitor cells (EPCs) derived from bone marrow may differentiate into endothelial cells and participate in endothelial repair. These cells can be mobilized into peripheral blood by cytokines, including granulocyte colony-stimulating factor (G-CSF). In the present study, we investigated the effects of G-CSF on neointimal formation and restenosis in ...
Yagci B - - 2008
The purpose of this study was to determine whether renal venous pulsations are affected by compression of the left renal vein (LRV) between the aorta and spine, and also to determine the clinical significance of incidentally detected retroaortic LRV. The study population was recruited from 783 consecutive patients undergoing abdominal ...
Tombul S T - - 2008
OBJECTIVES: Digital subtract angiography is the gold standard for anatomic assessment of renal vasculature for living renal donors. However, multidetector-row computerized tomography (MDCT) is less invasive than digital subtract angiography and provides information of kidney stones and other intra-abdominal organs. In this study, preoperative MDCT angiography results were compared with ...
Jetti Raghu - - 2008
The knowledge of renal vascular anatomy and its variations are very much essential in case of renal transplantation, renal surgeries, uroradiology, gonadal color doppler imaging, in surgeries of aneurysm of abdominal aorta, in gonadal surgeries. We report a rare combination of vascular variations in a 48 years old male cadaver, ...
Moreau Richard - - 2008
Type 1 hepatorenal syndrome (HRS) is prerenal failure specific to decompensated cirrhosis. In patients with HRS, there is marked splanchnic/systemic vasodilation resulting in arterial hypotension, arterial baroreceptor unloading, overstimulation of the sympathetic nervous and renin-angiotensin systems. This reflex neurohumoral hyperactivity via endogenous vasoconstrictors/vasopressors such as angiotensin II and noradrenaline induces ...
Park Dong-Hyuk - - 2008
A rare case involving multiple intracranial aneurysms with intraventricular hemorrhage (IVH) in a child, accompanied by unilateral fibromuscular dysplasia (FMD) of the renal artery, is reported. A 12-year-old girl presented with secondary hypertension and fourth-ventricle IVH. Cerebral angiography showed multiple aneurysms in the anterior communicating artery, right posterior cerebral artery, ...
Aoki Atsushi - - 2008
A 73-year-old man with a history of hypertension and drug-induced hepatitis underwent surgical treatment of an enlarging pararenal abdominal aortic aneurysm (PRAAA) with bilateral renal artery stenosis, found on enhanced computed tomography (CT). His preoperative renal function was normal. We divided the right renal artery and used a 6-mm expanded ...
Dubel Gregory J - - 2008
Renal artery stenosis (RAS) is usually caused by atherosclerosis or fibromuscular dysplasia. RAS leads to activation of the renin-angiotensin-aldosterone system and may result in hypertension, ischemic nephropathy, left ventricular hypertrophy and congestive heart failure. Management options include medical therapy and revascularization procedures. Recent studies have shown angiotensin receptor blockers (ARB) ...
El-Sherbiny M - - 2008
PURPOSE: This study describes the surgical technique and outcomes of live donor renal allografts with multiple arteries in which the lower polar artery was anastomosed to the inferior epigastric artery after declamping. MATERIALS AND METHODS: Between 1988 and 2004, 477 consecutive live donor renal transplants were performed, including 429 with ...
Tamei Noriko - - 2008
We present the case of a 55-year-old man with ruptured arterial aneurysm accompanied by microscopic polyangiitis in the kidney. He was admitted to our hospital because of general fatigue, fever and serious numbness of his extremities. Microscopic polyangiitis (MPA) was diagnosed on the basis of cardinal symptoms, including rapidly progressive ...
Mouzopoulos G - - 2008
The anatomical proximity of axillary artery to the humeral head makes it quite vulnerable to blunt trauma during shoulder injury. Axillary artery rupture and prolonged ischemia may lead to rhabdomyolysis and acute renal failure. Herein we present a case of a patient who sustained proximal humerus fracture associated with axillary ...
Cruz-Domínguez M P - - 2008
1 Alpha1-Adrenoceptor (alpha1-AR) subtypes were characterized in isolated omental arteries obtained after abdominal surgery in patients with end-stage renal disease (ESRD) or with Diabetes Mellitus type 2 plus ESRD (ESRD-DM). 2 Omental arteries from patients with ESRD and ESRD-DM elicited a significant increase in sensitivity to phenylephrine with a pD(2) ...
Jefferies John L - - 2008
Atherosclerotic renal artery stenosis is the most common cause of renovascular hypertension. Primary treatment of renal artery stenosis includes renal artery balloon angioplasty and, in some cases, renal artery stenting. However, in-stent restenosis occurs in 11% to 39% of patients thus treated. Herein, we report the case of a 76-year-old ...
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