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Arteriovenous fistulae

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https://www.readbyqxmd.com/read/29027182/preoperative-management-of-arteriovenous-fistula-avf-for-hemodialysis
#1
Gaetano Alfano, Francesco Fontana, Mario Iannaccone, Patrizia Noussan, Gianni Cappelli
Native arteriovenous fistula (AVF) is the favorite access for hemodialysis (HD). The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) recommends its creation in most patients with renal failure. Unfortunately, intensive efforts to promote native AVF in patients with marginal vessels have increased the rate of primary fistula failure. A non-functioning fistula prompts the use of central venous catheter (CVC) that, unlike AVF, has been associated with an increased risk of morbidity and mortality among patients receiving HD...
October 11, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29025963/sacral-dural-arteriovenous-fistulas-a-diagnostic-and-therapeutic-challenge-single-centre-experience-of-13-cases-and-review-of-the-literature
#2
Andrea Gioppo, Giuseppe Faragò, Caterina Giannitto, Luigi Caputi, Andrea Saladino, Francesco Acerbi, Elisa Ciceri
BACKGROUND: Sacral dural arteriovenous fistulas (DAVFs) are rare vascular abnormalities of the spine characterised by slowly progressive symptoms that can mimic different myelopathy disorders. OBJECT: To report our single Institution experience with sacral DAVFs. METHODS: We retrospectively reviewed the clinical records of patients admitted from 1 January 2006 to 31 December 2016 with a diagnosis of sacral DAVFs, treated by endovascular embolisation or surgical clipping...
October 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29025196/prenatal-molecular-diagnosis-in-rasa1-related-disease
#3
Aurélien Palmyre, Mélanie Eyries, Marie-Victoire Senat, Augustin Ozanne, Stéphanie Staraci, Philippe Dufour, Thierry Chinet, Pascal Lacombe, Florent Soubrier, Philippe Charron
RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs) and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications...
October 12, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29024832/somatic-second-hit-mutation-of-rasa1-in-vascular-endothelial-cells-in-capillary-malformation-arteriovenous-malformation
#4
Philip E Lapinski, Abbas Doosti, Valerie Salato, Paula North, Patricia E Burrows, Philip D King
Capillary malformation-arteriovenous malformation (CM-AVM) is an autosomal dominant vascular disorder that is associated with inherited inactivating mutations of the RASA1 gene in the majority of cases. Characteristically, patients exhibit one or more focal cutaneous CM that may occur alone or together with AVM, arteriovenous fistulas or lymphatic vessel abnormalities. The focal nature and varying presentation of lesions has led to the hypothesis that somatic "second hit" inactivating mutations of RASA1 are necessary for disease development...
October 9, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29024673/not-the-usual-suspect
#5
Andrew G Lee, Jonathan D Shader, Aroucha Vickers, Orlando M Diaz, Jurij R Bilyk
An 82-year-old woman presented with right-sided proptosis, chemosis, and a supraorbital bruit. A dural carotid-cavernous fistula (CCF) was suspected, but catheter angiography revealed an intraorbital inferior ophthalmic vein arteriovenous fistula (AVF) supplied by the right ophthalmic artery and infraorbital branch of the internal maxillary artery. A primary orbital AVF can mimic the clinical and radiographic features of the more common CCF.
October 9, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29023551/a-multilayered-electrospun-graft-as-vascular-access-for-hemodialysis
#6
D Radakovic, J Reboredo, M Helm, T Weigel, S Schürlein, E Kupczyk, R G Leyh, H Walles, J Hansmann
Despite medical achievements, the number of patients with end-stage kidney disease keeps steadily raising, thereby entailing a high number of surgical and interventional procedures to establish and maintain arteriovenous vascular access for hemodialysis. Due to vascular disease, aneurysms or infection, the preferred access-an autogenous arteriovenous fistula-is not always available and appropriate. Moreover, when replacing small diameter blood vessels, synthetic vascular grafts possess well-known disadvantages...
2017: PloS One
https://www.readbyqxmd.com/read/29021679/a-rare-case-of-a-vertebrojugular-arteriovenous-fistula-a-case-report-and-review-of-literature
#7
Fanor Saavedra-Pozo, Juan Vicenty-Padilla, Rafael Rodriguez-Mercado
Vertebrojugular fistulas have been described in the literature associated with blunt or penetrating injury and iatrogenic or spontaneous development. Its presentation may be broad and may include symptoms of radiculopathy, vertebrobasilar insufficiency, tinnitus, and bruit. However, so far, no direct cardiac complications had been reported. Here, we describe a case of an 86-year-old female who suffered a C5 vertebral fracture secondary to a ground-level fall that was initially treated conservatively due to the onset of new severe atrial fibrillation...
July 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29021314/augmented-3d-venous-navigation-for-neuroendovascular-procedures
#8
Raphaël Blanc, Robert Fahed, Pascal Roux, Stanislas Smajda, Gabriele Ciccio, Jean-Philippe Desilles, Hocine Redjem, Mikael Mazighi, Humain Baharvahdat, Michel Piotin
BACKGROUND: Endovascular venous access is increasingly used for the treatment of many cerebrovascular diseases. The quality of venous roadmapping through arterial injection can be problematic because of contrast media dilution, slow flow velocity, and unilateral opacification of the venous system. OBJECTIVE: To describe our experience with the VesselNavigator (Philips Healthcare, Best, The Netherlands) in performing live 3D roadmapping for intracranial venous procedures...
October 11, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29021312/incompletely-obliterated-cranial-arteriovenous-fistulae-are-safely-and-effectively-treated-with-adjuvant-%C3%AE%C2%B5-aminocaproic-acid
#9
Brian M Howard, Jonathan A Grossberg, Adam Prater, C Michael Cawley, Jacques E Dion, Frank C Tong
BACKGROUND: Administration of ε-aminocaproic acid (εACA), as adjuvant therapy following incompletely embolized cranial dural arteriovenous (dAVFs) and direct carotid artery to cavernous sinus fistulae (CCFs), is a strategy to promote post-procedural thrombosis. However, the efficacy of εACA to treat incompletely obliterated dAVFs and CCFs has not been published. The purpose of this study was to determine if administration of εACA following incomplete embolization of cranial dAVFs or CCFs was associated with an increased likelihood of cure on follow-up imaging compared with patients not given adjuvant εACA...
October 11, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29017808/a-novel-technique-for-duplex-guided-office-based-interventions-for-patients-with-acute-arteriovenous-fistula-occlusion
#10
Afsha Aurshina, Enrico Ascher, Anil Hingorani, Natalie Marks
OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone...
October 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29016410/type-i-dural-arteriovenous-fistula-mimicking-dural-venous-thrombosis-related-intracranial-hypertension
#11
Hang Pham, Sangeeta Khanna
No abstract text is available yet for this article.
October 6, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28990213/the-complex-relationship-among-arteriovenous-access-heart-and-circulation
#12
EDITORIAL
Carlo Basile, Carlo Lomonte
There are currently near 400 000 patients on hemodialysis in the United States. More than 50% of those treated by chronic hemodialysis die because of a cardiovascular (CV) event. The majority of these patients have functional arteriovenous fistulas (AVFs). AVFs have an adverse effect on cardiac function, but their exact contribution to CV morbidity is not clear. It has long been known that a vascular access with an inappropriately high-flow rate may cause high-output heart failure. Paradoxically, there may be hemodynamic and cardiopulmonary benefits conferred by AVF particularly in severe chronic obstructive pulmonary disease...
October 9, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28988940/dual-lumen-balloon-to-increase-onyx-venous-penetration-in-the-treatment-of-spinal-dural-arteriovenous-fistulas
#13
Felipe Padovani Trivelato, Marco Túlio Salles Rezende, Alexandre Cordeiro Ulhoa, Guilherme Seizem Nakiri, Daniel Giansante Abud
PURPOSE: Spinal dural arteriovenous fistulas (sDAVF) are the most common spinal vascular lesions. The arterialization of the recipient vein results in venous hypertension and chronic ischemia. Intravascular injection of acrylic glue in order to occlude the draining vein is the principle of endovascular treatment, but a significant portion of embolization procedures do not succeed. We present our initial experience of endovascular balloon augmented embolization of sDAVF using a dual-lumen balloon...
October 5, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28986150/microsurgical-treatment-and-outcomes-of-spinal-arteriovenous-lesions-learned-from-consecutive-series-of-105-lesions
#14
Linkai Jing, Wei Su, Yi Guo, Zhenxing Sun, James Wang, Guihuai Wang
Spinal arteriovenous lesions (SAVLs), arteriovenous fistulas (AVFs) and arteriovenous malformations (AVMs), are rare and can devastatingly impair spinal cord function. This study aimed to evaluate clinical outcomes after microsurgical treatment with the aid of intraoperative indocyanine green video-angiography (ICG-VA) in a large series of patients with SAVLs. We retrospectively reviewed the cases of 95 consecutive patients with 105 SAVLs (77 spinal AVFs, 28 spinal AVMs) who had been treated surgically during 2010-2016 in two hospitals by the same experienced surgeon...
October 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28984770/management-of-iatrogenic-renal-arteriovenous-fistula-and-renal-arterial-pseudoaneurysm-by-transarterial-embolization-a-single-center-analysis-and-outcomes
#15
Hongjie Guo, Chengen Wang, Min Yang, Xiaoqiang Tong, Jian Wang, Haitao Guan, Li Song, Yinghua Zou
The purpose of this study was to evaluate the efficacy and safety of transarterial embolization (TAE) for iatrogenic renal arterial pseudoaneurysm and arteriovenous fistula at our center.Our retrospective analysis included 27 patients who received TAE for iatrogenic renal arterial pseudoaneurysm and arteriovenous fistula between January 2006 and January 2016. Data on demographics, type of minimally invasive renal procedures, clinical manifestation, imaging features, embolization procedure, and perioperative details were collected...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28979632/-staphylococcal-toxic-shock-syndrome-at-a-chronic-hemodialysis
#16
Hassan Alaoui, Ayoub Belhadj, Younes Aissaoui, Rachid Seddiki, Mohamed Zoubir, Mohamed Bougalem
Staphylococcal toxic shock syndrome is an acute and systemic infectious syndrome associated with the super-antigenic activity of staphylococcal toxins. It is a pathology that is rather rare but remains burdened with a considerable mortality despite the therapeutic management. The gateway is usually cutaneous with secondary bacteremic spread could be subject to preventive measures. We report the case of a rapidly fatal staphylococcal toxic shock, developed in a chronic hemodialysis whose entry from the arteriovenous fistula was suspected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28978278/vascularization-of-the-arterio-venous-loop-in-a-rat-isolation-chamber-model-quantification-of-hypoxia-and-evaluation-of-its-effects
#17
Quan Yuan, Andreas Arkudas, Raymund E Horch, Matthias Hammon, Oliver Bleiziffer, Michael Uder, Hannes Seuss
Introduction The aim of this study was to analyze the three-dimensional distribution of hypoxia in the arterio-venous (AV) loop model in rats, by examining the distribution of hypoxia-inducible factor-1 alpha (HIF-1α). Materials and Methods AV loops were created from the femoral artery and vein of male Lewis rats and an interpositional graft from the contralateral femoral vein. This arteriovenous fistula was embedded in a fibrin-filled isolation chamber and subcutaneously implanted into the thigh. The specimens were harvested after 7 days (n=4), 10 days (n=5) and 14 days (n=4)...
October 5, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28977080/foix-alajouanine-syndrome-mimicking-a-spinal-cord-tumor
#18
Renan Salomão, Nathalie Henriques Silva Canêdo, Guilherme P Abrão, Carlos Lima, Marcus André Acioly
Subacute necrotizing myelopathy (SNM) or Foix-Alajouanine syndrome is a rare disease characterized by progressive neurological dysfunction caused by a spinal dural arteriovenous fistula (AVF). Radiological diagnosis is usually suspected when there is intramedullary nonspecific enhancement and perimedullary flow voids. Ring-enhancement is rarely reported in the scope of AVF, which poses a diagnostic challenge and raises the suspicion of a spinal cord tumor. In such situations, biopsy can be required and delay proper diagnosis...
July 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28975855/treatment-of-cranial-dural-arteriovenous-fistulas-with-exclusive-cortical-venous-drainage-a-single-center-cohort-of-35-patients
#19
H G Kortman, G Bloemsma, I Boukrab, J P Peluso, M Sluzewski, B van der Pol, G N Beute, C B Majoie, W J van Rooij
Background and purpose Dural arteriovenous fistulas (DAVFs) with cortical venous drainage often present with hemorrhage or neurological deficits and prompt treatment is indicated. Disconnection of the draining vein is considered curative. We present the multimodality treatment results of 35 patients with cranial DAVFs with exclusive cortical venous drainage. Materials and methods Between January 2010 and January 2017, 35 consecutive patients with cranial dural fistulas with exclusive cortical venous drainage were treated...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28974524/risk-of-infective-endocarditis-in-patients-with-end-stage-kidney-disease
#20
Mavish S Chaudry, Nicholas Carlson, Gunnar H Gislason, Anne-Lise Kamper, Marianne Rix, Vance G Fowler, Christian Torp-Pedersen, Niels E Bruun
BACKGROUND AND OBJECTIVES: Endocarditis is a serious complication in patients treated with RRT. The study aimed to examine incidence and risk factors of endocarditis in patients with ESRD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The Danish National Registry on Regular Dialysis and Transplantation contains data on all Danish patients receiving renal replacement (hemodialysis, peritoneal dialysis, or kidney transplantation) for ESRD. Incidence of endocarditis was estimated for each RRT modality...
October 3, 2017: Clinical Journal of the American Society of Nephrology: CJASN
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