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Textor Stephen C - - 2007
Hypertension in patients with renovascular disease poses a major clinical challenge. Renal arterial disease accelerates hypertension by activation of multiple pressor systems. Although younger individuals with fibromuscular lesions often respond well to angioplasty with minor associated risks, care must be taken in cases of complex vascular anomalies, such as renal ...
Akhtar Naureen - - 2007
This case reports a young child having uncontrolled hypertension, resulting from bilateral renal artery stenosis due to fibromuscular dysplasia presenting with abdominal pain, headache and visual disturbance. Diagnostic features and management is discussed.
Pearce Jeffrey D - - 2007
This retrospective review examines the open surgical repair of intact juxtarenal (JRAAs) and suprarenal (SRAAs) aortic aneurysms to estimate effects on survival and renal function. Patients undergoing open repair of JRAA and SRAA were identified. Preoperative medical comorbidities and perioperative and late outcomes were recorded. Primary end points were survival ...
Iida Osamu - - 2007
Fibromuscular dysplasia (FMD) is a nonatherosclerotic, noninflammatory vascular disease that mostly affects the renal and internal carotid arteries, rarely complicating lower limbs. We report a case of FMD complicating critical limb ischemia due to the obstruction of below the knee arteries, diagnosed and treated with the support of skin perfusion ...
Kotsis T - - 2007
The coexistense of an abdominal aortic aneurysm with ectopic main renal vasculature complicates aortic surgery and mandates a focused imaging evaluation and a carefully planned operation to minimize renal ischemia. We present the case of a 75-year-old man with an abdominal aortic aneurysm and a right kidney with two ectopic ...
Eller Philipp - - 2008
BACKGROUND: Ectonucleotide pyrophosphatase/phosphodiesterase-1 (ENPP1) generates inorganic pyrophosphate, a solute that serves as an essential physiological inhibitor of calcification. Inactivating mutations of ENPP1 are associated with generalized arterial calcification of infancy. We hypothesized the ENPP1 K121Q variant to be associated with increased vascular calcification in patients with end-stage renal failure. SUBJECTS ...
Johnson Colleen M - - 2007
Renal artery angioplasty and stenting is commonly performed for the treatment of hypertension and ischemic nephropathy. An increasing number of procedures are being undertaken for "renal preservation" despite an associated risk of renal function decline related to the embolization of atheromatous debris liberated during the procedure. Although smaller, more flexible ...
Bilici Aslan - - 2007
Our objective was to describe the technique and outcome of CT-guided injection of botulinum toxin into the diaphragmatic crus in a patient with hypertension caused by left diaphragmatic crus compression of the left renal artery. After the procedure, the patient's hypertension disappeared. We propose this technique, which directly targets inhibition ...
Paschalis-Purtak K - - 2008
We are presenting clinical characteristics, management and follow-up of five consecutive patients with renal artery aneurysm. Renal artery aneurysms are relatively uncommon, they rarely give rise to clinical manifestations and they are usually found incidentally. However with the introduction of Doppler ultrasound, computed tomography (CT) and magnetic resonance (MR) imaging, ...
Choudry Haroon - - 2008
PURPOSE: Invasion of the superior mesenteric vein (SMV) or superior mesenteric-portal vein (SMPV) confluence, in pancreatic adenocarcinoma of the head and uncinate process, is the most common unexpected finding at the time of pancreaticoduodenectomy. Resection of the SMV or SMPV with reconstruction using autologous and synthetic conduits is well established. ...
Adriaenssens Tom - - 2007
We describe the use of stenting in multiple renal arteries with severe ostial stenoses. A 62-year-old male with long-standing arterial hypertension despite treatment with multiple antihypertensive medications and mild renal impairment, appeared to have 5 renal arteries, 4 of which had severe ostial stenoses. Successful stent implantation of these 4 ...
Basile Antonio - - 2007
Classic nutcracker syndrome is caused by left renal vein compression between the superior mesenteric artery and aorta, leading to retrograde venous hypertension associated with such urinary abnormalities as hematuria or proteinuria. We describe a case of symptomatic nutcracker syndrome treated by means of stent placement in which hypertension in the ...
Aranzulla Tiziana Claudia - - 2007
Renal artery aneurysms are rare vascular anomalies in which rupture is associated with devastating consequences. Only a few reported cases involved percutaneous treatment. Recently, technological advances have expanded indications for percutaneous treatment of such complex peripheral lesions. Despite this, certain anatomical settings such as extreme vessel tortuosity or angulation of ...
Elias M Z J - - 2007
The macroscopic features of the arterial supply to the reproductive system of the male ostrich was studied in 16 pre-pubertal and eight sexually mature and active birds. The left and right cranial renal arteries arise from the aorta, between the cranial divisions of the kidneys. These vessels supply the cranial ...
Henry M - - 2007
Renal artery stenosis (RAS) is frequent and increasingly recognized thanks to technical improvements in duplex ultrasound, magnetic resonance angiography, computed tomography (CT) scanning, systematic renal angiography during cardiac catheterisation, coronary procedures and particularly in hypertensive or multivascular diseased patients. Renal artery angioplasty and stenting is the first treatment to be ...
Marques-Sampaio Beatriz P S - - 2007
The detailed findings of canine intrarenal anatomy (collecting system and arteries) are presented. Ninety-five three-dimensional endocasts of the kidney collecting system together with the intrarenal arteries were prepared using standard injection-corrosion techniques and were studied. A single renal artery was observed in 88.4% of the casts. The renal artery divided ...
Regine Giovanni - - 2007
Multidetector computed tomography (MDCT) has drastically changed the diagnostic imaging protocol in both traumatic and non-traumatic vascular emergencies, replacing almost completely the traditional primary role of catheter angiography. MDCT is a well-established tool for the elective evaluation of stenoses, malformations, and dysplasias in the settings of renovascular hypertension, but probably ...
Anoop Thattungal M - - 2007
Renal artery aneurysms are uncommon and are usually detected when renal angiography is performed for other indications. Less often, they may present with loin pain, hematuria, renovascular hypertension, and a palpable mass. Renal artery aneurysms larger than 1.0 cm presenting with resistant hypertension and all aneurysms larger than 2.0 cm ...
Sharifkazemi Mohammad Bagher - - 2008
Flash pulmonary edema is a condition characterized by sudden and recurrent episodes of dyspnea resulting from acute pulmonary venous congestion in the presence of normal or well-preserved left ventricular systolic function. This is usually associated with bilateral renal artery stenosis or stenosis of a single surviving kidney. We describe a ...
Acar Halil Ibrahim - - 2007
BACKGROUND: The testicular arteries usually arise from the anterolateral aspect of the abdominal aorta just inferior to the renal arteries at the level of the second lumbar vertebra. However, they may also originate from the renal artery, middle suprarenal artery, one of the lumbar arteries, common or internal iliac artery, ...
Choi Hee Seok - - 2007
Hemorrhagic fever with renal syndrome (HFRS) is an acute viral disease characterized by fever, hemorrhage and renal failure. Among the various hemorrhagic complications of HFRS, spontaneous rupture of the kidney and perirenal hematoma are very rare findings. We report here on a case of HFRS complicated by massive perirenal hematoma, ...
Thatipelli Mallik R - - 2007
PURPOSE: To determine which commercially available embolic protection devices are suitable for use in renal arteries. MATERIAL AND METHODS: A retrospective study was conducted of 97 patients who underwent three-dimensional computed tomographic (CT) angiography with either 16- or 64-detector row helical CT of the renal arteries for the evaluation of ...
Edwards Matthew S - - 2007
Atheroembolization during renal artery angioplasty and stenting (RA-PTAS) has been postulated as a cause for the inferior renal function results observed when compared with those with surgical revascularization. To further characterize procedure-associated atheroembolism, we analyzed recovered atheroembolic debris and clinical data from patients undergoing RA-PTAS with distal embolic protection (DEP). ...
Choke Edward E St. George's Vascular Institute, Blackshaw Road, London, SW17 0QT, - - 2007
The effect of suprarenal fixation of endovascular grafts on renal and visceral artery function remains undefined. This study aimed to determine renal and visceral artery complications following suprarenal fixation during endovascular aneurysm repair (EVR). Prospectively collected data from 112 patients who received suprarenal fixation (group SF) and 36 patients who ...
Petru Bordei - - 2007
Using dissection and plastic injection followed by corrosion as study methods, we describe 16 cases of gonadal arteries originating from the renal artery. Among them, in 12 cases (75%), we assessed this variation on a single gonadal artery while two gonadal arteries appeared in four cases (25%). In 13 cases ...
Hinsch Nora - - 2008
BACKGROUND: Neurofibromatosis type 1 (NF1) is one of the most frequently inherited diseases. Vascular manifestations have been reported, mostly concerning stenosis of the renal artery or spontaneous rupture of single arteries. Also, venous aneurysms have been reported. METHODS: We present clinical and pathological findings of a young patient with NF1 ...
Anantham Devanand - - 2007
Pulmonary capillaritis presenting as diffuse alveolar hemorrhage is a rare manifestation in patients with IgA nephropathy. A 20-year-old male with hemodialysis dependent, end-stage renal failure presented with recurrent hemoptysis and respiratory failure. A histologic diagnosis of pulmonary capillaritis was established by transbronchial lung biopsy. He was successfully treated with intravenous ...
Orvieto Marcelo A - - 2007
PURPOSE: It is generally accepted that simultaneous occlusion of the renal artery and vein during warm ischemia is more damaging than occlusion of the artery alone. Pneumoperitoneum during laparoscopy may impair venous backflow, negating the benefits of clamping the artery alone. We evaluated the effect of laparoscopic vs open surgery ...
Maki Jeffrey H - - 2007
OBJECTIVE: The purpose of our study was to determine how well unenhanced navigator-gated steady-state free precession (Nav SSFP) MR angiography (MRA) performs as a screening test for the detection of renal artery stenosis. SUBJECTS AND METHODS: Forty patients referred to rule out renal artery stenosis were imaged using an optimized ...
Hommels M J - - 2007
BACKGROUND: Recently, the common Asp299Gly polymorphism of the Toll-like receptor 4 (TLR-4) was found to be associated with a reduced incidence of acute myocardial infarction and carotid atherosclerosis. As TLR-4 signalling is causally involved in atherogenesis, the polymorphism was postulated to impart protection from atherosclerosis. To explore a potential atheroprotective ...
Klonaris C - - 2007
A 68-year-old woman with a left renal artery aneurysm underwent successful endovascular repair with the use of a commercial type self-expanding stent-graft. Complete aneurysm exclusion was achieved after stent-graft expansion. A side branch vessel was occluded after stent-placement, resulting in a small upper lobe renal perfusion defect. There were no ...
Talenfeld Adam D - - 2007
OBJECTIVE: Use of distal protection in renal artery stenting entails overcoming challenges unique to renal artery anatomy. We used 3D image reconstruction to review high-spatial-resolution MDCT angiographic data to better characterize the anatomy of stenotic renal arteries. MATERIALS AND METHODS: A total of 218 abdominal MDCT angiograms from a single ...
Yildirim Erkan - - 2008
OBJECTIVE: The purpose of our study was to evaluate perfusion and diffusion of kidneys in renal artery stenosis (RAS) and any correlation between stenosis and ADC values and whether this imaging modality may be a noninvasive complementary assessment technique to MR angiography before interventional procedures. MATERIALS AND METHODS: Twenty consecutive ...
Shoja Mohammadali M - - 2007
The gonadal arteries are paired vessels that usually originate from the abdominal aorta at the level of second lumbar vertebra. In 5-20% of cases, the gonadal artery has a high origin (superior to L2) and in 5-6% of cases it originates from the main or accessory renal artery. The latter ...
Rasmus M - - 2007
An extensive iatrogenic aortic type B dissection during percutaneous transluminal renal angioplasty (PTRA) for bilateral renal artery stenosis was treated with a covered stent placed in the right renal artery. Control angiography confirmed closure of the entry. Postprocedural CT demonstrated a thick intramural hematoma (IMH) up to the left subclavian ...
Idowu Oluwatoyin - - 2007
Embolization procedures are now considered the first-line therapy in the treatment of renal arteriovenous fistulas (AVFs). However, a risk posed by the use of these minimally invasive techniques is the migration of occluding agents into the venous and pulmonary circulations. The risk is of particular importance for larger, high-flow fistulas. ...
Bakoyiannis Chris N - - 2007
Atherosclerotic renal artery stenosis (RAS) is relatively common and often associated with hypertension and progressive renal insufficiency. Technical improvements of interventional endovascular tools have led to a more widespread use of endoluminal renal artery revascularization. Sometimes an endovascular procedure for (RAS) may fail. We report 3 cases successfully treated with ...
Kitase M - - 2007
The purpose of this study was to evaluate the role of contrast-enhanced CT and the usefulness of superselective embolization therapy in the management of arterial damage in patients with severe blunt renal trauma. Nine cases of severe renal trauma were evaluated. In all cases, we compared contrast-enhanced CT findings with ...
Déglise Sébastien - - 2007
We present the case of a young man with compression of both renal arteries by the crura of the diaphragm. Correct diagnosis of renal artery entrapment is difficult but crucial. The investigations rely on an high index of suspicion and include Doppler ultrasound and spiral computed tomography angiography, which permits ...
Hermans Marc M H - - 2007
Mild renal insufficiency is a risk factor for cardiovascular disease (CVD). Both a decline in GFR and (micro)albuminuria are associated with greater cardiovascular mortality. In ESRD, arterial stiffness, an important cause of CVD, is known to be greater, but few data exist in individuals with mild renal insufficiency or microalbuminuria. ...
Corso Ricardo B - - 2008
The optimal management of patients with combined ischemic and/or valvular heart disease and abdominal aortic aneurysm is still a matter of debate. A 60-year-old woman presented with a large infra-renal aortic aneurysm. Preoperative workup revealed ischemic cardiomyopathy and aortic regurgitation. She was submitted to one-stage aneurysm repair and complex heart ...
Androes Mark P - - 2007
Renal artery stenosis is a consequence of generalized atherosclerosis and many specialists perform routine selective renal angiography to detect and treat renal artery stenosis. The incidence of clinically important renal artery stenosis is not well defined in patients with symptomatic peripheral arterial disease. The purpose of this study was to ...
Olin Jeffrey W - - 2007
Fibromuscular dysplasia typically occurs in young women and most commonly presents with hypertension, transient ischemic attack, stroke, or an asymptomatic cervical bruit. The disease is nonatherosclerotic and noninflammatory and most often affects the renal and carotid arteries, although almost any artery can be involved. On angiography, affected blood vessels characteristically ...
Li Jian-chu - - 2007
OBJECTIVE: The aim of this study was to evaluate the differences in the tardus-parvus pattern between atherosclerotic and nonatherosclerotic renal artery stenosis (RAS) and to explore the causes of these differences. METHODS: In 81 patients, including a nonatherosclerotic group (29 cases of Takayasu arteritis and 22 cases of fibromuscular dysplasia) ...
Soga Yoshimitsu - - 2007
Renal artery aneurysm is a rare condition, but its incidence has increased through discovery because of improved imaging techniques. However, a therapeutic approach for renal artery aneurysm has not been established. We report the case of a 58-year-old female who had developed hypertension at 52 years of age and was ...
Linsen Matteus A M - - 2007
A circulation model was created in 6 nonaneurysmal human cadavers to evaluate the deliverability, deployment, and acute performance of a modular branched endograft system for treatment of aortic aneurysms containing essential branch vessels. Two fenestrations were created in an appropriately sized aortic main endograft. Under fluoroscopic guidance, the main endograft ...
Dowling Jason M - - 2007
Renal artery occlusion after blunt trauma is a rare occurrence, and the optimal treatment for this condition has not been established. To our knowledge, endovascular repair for blunt renal artery occlusion in a solitary kidney has not been described in the literature. This case report describes a 42-year-old woman with ...
Melissano Germano - - 2007
Suprarenal fixation by means of proximal bare stent may help prevent endograft migration and proximal endoleak. It seems not to compromise renal perfusion and function; however, it is still unclear whether its presence is in conflict with stenting of the renal arteries to treat associated renal stenosis. We report five ...
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 ...
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