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Arteriovenous fistulae

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https://www.readbyqxmd.com/read/28436714/a-hemorrhagic-complication-after-onyx-embolization-of-a-tentorial-dural-arteriovenous-fistula-a-caution-about-subdural-extension-with-pial-arterial-supply
#1
Kenichi Sato, Yasushi Matsumoto, Hidenori Endo, Teiji Tominaga
We report a case of tentorial dural arteriovenous fistula (DAVF) with a severe intracranial hemorrhage occurring after Onyx embolization. A 40-year-old man presented with an asymptomatic tentorial DAVF on angiography. Transarterial embolization with Onyx was performed via the middle meningeal artery, and the cast filled the fistula itself and its proximal draining vein. Postoperative angiography confirmed complete occlusion of the DAVF. A computed tomography scan performed immediately after the procedure demonstrated an acute subdural hematoma with the temporal hemorrhage...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28434955/arterial-hypertension-is-associated-with-symptomatic-spinal-dural-arteriovenous-fistulas
#2
Fidaa Jablawi, Omid Nikoubashman, Michael Mull
BACKGROUND: Spinal dural arteriovenous fistulas (SDAVF) are the most common type of arteriovenous disorders of the spinal cord and its meninges. The purpose of our study is to determine possible systemic factors that may induce or be associated with the pathogenesis and the pathological course of SDAVF. MATERIAL AND METHODS: We assessed the role of possible systemic (vascular) risk factors (arterial hypertension, diabetes mellitus, fat metabolism disorders, and nicotine dependence) by comparing the prevalence of these risk factors in a SDAVF cohort of 59 patients with the prevalence in the general population...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434704/establishment-of-buttonhole-technique-as-a-puncture-alternative-for-arteriovenous-f%C3%A3-stulas-experience-of-a-centre-over-3years
#3
Laura Baena, José L Merino, Blanca Bueno, Beatriz Martín, Verónica Sánchez, Luca Caserta, Beatriz Espejo, Patricia Domínguez, Alicia Gómez, Vicente Paraíso
INTRODUCTION: The buttonhole (BH) puncture technique for arteriovenous fistulas is an alternative to the classical staggered puncture. PURPOSE: We present 3years' results incorporating the BH puncture technique for arteriovenous fistulas in our dialysis unit. MATERIAL AND METHODS: Twenty-two patients were started on BH technique, 15 men and 7 women (mean age: 62 years; SD: 12), with time spent on dialysis when starting the BH technique of 34 months (SD: 34, median: 27, range: 3-136)...
March 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28434662/paclitaxel-coated-balloons-for-the-treatment-of-symptomatic-central-venous-stenosis-in-dialysis-access-results-from-a-randomized-controlled-trial
#4
Panagiotis M Kitrou, Panagiotis Papadimatos, Stavros Spiliopoulos, Konstantinos Katsanos, Nicolaos Christeas, Elias Brountzos, Dimitrios Karnabatidis
PURPOSE: To compare the clinically-assessed intervention-free period (IFP) of paclitaxel-coated balloon (PCB) vs conventional balloon angioplasty (CBA) for the treatment of symptomatic central venous stenosis (CVS) in dialysis access. MATERIALS AND METHODS: Within 20 months, 40 dialysis patients (19/40 arteriovenous fistulae [AVFs] and 21/40 arteriovenous grafts [AVGs]) were randomized to undergo angioplasty either with a PCB (PCB group, n = 20; 14/20 male; age: 56...
April 20, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28432606/neuromuscular-electrostimulation-a-new-therapeutic-option-to-improve-radio-cephalic-arteriovenous-fistula-maturation-in-end-stage-chronic-kidney-disease-patients
#5
Lucia Martinez, Vicent Esteve, Montserrat Yeste, Vicent Artigas, Secundino Llagostera
BACKGROUND: Radio-cephalic arteriovenous fistula (RCAVF) is the gold standard vascular access for end-stage chronic kidney disease patients. Exercises after arteriovenous fistula (AVF) creation improve maturation. No articles are published regarding neuromuscular electrostimulation (NMES) in AVF maturation. OBJECTIVES: To assess the usefulness of a NMES programme on RCAVF maturation process. METHODS: An 8-week single-centre prospective study...
April 21, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28432263/intracranial-dural-arteriovenous-fistulae
#6
REVIEW
Matthew R Reynolds, Giuseppe Lanzino, Gregory J Zipfel
No abstract text is available yet for this article.
April 21, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28430541/a-comprehensive-approach-to-hepatic-vascular-disease
#7
Khaled M Elsayes, Akram M Shaaban, Sarah M Rothan, Sanaz Javadi, Beatrice L Madrazo, Rosa P Castillo, Victor J Casillas, Christine O Menias
The liver has a complex vascular supply, which involves the inflow of oxygenated blood through the hepatic artery (systemic circulation) and deoxygenated blood through the portal vein (portal circulation), as well as the outflow of deoxygenated blood through the hepatic veins to the inferior vena cava. A spectrum of vascular variants can involve the liver. Some of these variants may result in areas of enhancement that can mimic more serious pathologic conditions. In this article, the authors discuss a spectrum of variants and pathologic conditions that may involve the liver vasculature...
April 21, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28430315/adding-access-blood-flow-surveillance-reduces-thrombosis-and-improves-arteriovenous-fistula-patency-a-randomized-controlled-trial
#8
Inés Aragoncillo, Soraya Abad, Silvia Caldés, Yésika Amézquita, Almudena Vega, Antonio Cirugeda, Cristina Moratilla, José Ibeas, Ramón Roca-Tey, Cristina Fernández, Nicolás Macías, Borja Quiroga, Ana Blanco, Maite Villaverde, Caridad Ruiz, Belén Martín, Asunción M Ruiz, Jara Ampuero, Fernando de Alvaro, Juan M López-Gómez
PURPOSE: Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. METHODS: We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compare QA-based surveillance and pre-emptive repair of subclinical stenosis with standard monitoring/surveillance techniques in prevalent mature AVFs. AVFs were randomized to either the control group (surveillance based on classic alarm criteria; n = 104) or to the QA group (QA measured quarterly using Doppler ultrasound [M-Turbo®] and ultrasound dilution [Transonic®] added to classic surveillance; n = 103)...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430314/transulnar-approach-as-an-alternative-to-transradial-approach-in-non-coronary-intervention-safety-feasibility-and-technical-factors
#9
Adam Zybulewski, Martin Edwards, Edward Kim, Francis S Nowakowski, Rahul Patel, Nora Tabori, Robert Lookstein, Aaron Fischman
PURPOSE: Transulnar access (TUA) has been shown to be an effective alternative to transradial access (TRA) for coronary intervention. This study evaluates the safety and efficacy of TUA in patients undergoing visceral interventions in the setting of contraindication to TRA. MATERIALS AND METHODS: Patients who underwent visceral interventions via ulnar approach were included in the study. Outcome variables include technical success, access site and bleeding complications...
April 13, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430311/effect-of-hemodialysis-access-blood-flow-on-cardiac-events-after-coronary-artery-bypass-grafting-using-an-internal-thoracic-artery
#10
Leonid Feldman, Ilia Beberashvili, Ahmad Abu Tair, Shai Efrati, Oleg Gorelik, Walter G Wasser, Eitan Heldenberg, Igor Rabin
BACKGROUND: The possibility of coronary steal through an arteriovenous fistula (AVF) in hemodialysis (HD) patients with coronary artery bypass grafts (CABGs) using an ipsilateral internal thoracic artery (ITA) has been suggested. In order to define the significance of such a possibility, we analyzed cardiac events and mortality risk in patients in relation to AVF flow. METHODS: A retrospective cohort study was performed on prevalent HD patients from a single center...
April 14, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430307/the-incidence-and-risk-factors-of-coronary-steal-after-ipsilateral-avf-in-patients-with-a-coronary-artery-bypass-graft
#11
Sanghyun Ahn, Ahram Han, Song-Yi Kim, Chanjoong Choi, Sang-Il Min, Jongwon Ha, Ho Young Hwang, Ki-Bong Kim, Seung-Kee Min
OBJECTIVE: Ipsilateral arteriovenous fistula (AVF) may cause symptoms of coronary steal in patients who had undergone coronary artery bypass graft (CABG) using internal thoracic artery. The purpose of this study was to evaluate the adverse effects of ipsilateral AVF to CABG, including the incidence of coronary steal, and to analyze the risk factors for coronary steal. METHODS: Between 2000 and 2013, a total of 25 patients undergoing hemodialysis via upper extremity AVF, ipsilateral to the preexisting CABG, were reviewed retrospectively...
April 14, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430306/endovascular-covered-stenting-to-treat-an-arteriovenous-graft-to-native-vein-fistula-caused-by-dialysis-needle-cannulation
#12
Stephanie Y S Yong, Ee Jean Lim, Chieh Suai Tan, Jack K Chng
No abstract text is available yet for this article.
April 18, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28427979/a-new-type-of-spinal-epidural-arteriovenous-fistulas-causes-spinal-epidural-hemorrhage-an-analysis-of-five-cases-and-natural-history-consideration
#13
Jia-Xing Yu, Tao Hong, Yong-Jie Ma, Feng Ling, Hong-Qi Zhang
BACKGROUND: Spinal epidural arteriovenous fistulas (SEDAVFs) are peculiar and poorly understood lesions with a poorly understood natural history. They are usually subclassified into two types according to their drainage components. This study aimed to describe a new type of SEDAVFs that is featured with a unique drainage pattern and present our natural history hypothesis of SEDAVFs. METHODS: Five SEDAVF cases of the new type were retrospectively reviewed from a high case-volume spinal vascular malformation database...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427974/factors-predicting-spontaneous-thrombosis-of-aggressive-cranial-dural-arteriovenous-fistulas
#14
Santhosh Kumar Kannath, Jayadevan Enakshy Rajan, Amirtendu Mukherjee, Sankara Sarma P
BACKGROUND: Dural arteriovenous fistula (DAVF) with cortical venous drainage (CVD) are known to be aggressive in clinical course and are usually managed promptly. Spontaneous resolution of DAVF is a rare phenomenon and usually occurs in benign type of fistulas. Spontaneous thrombosis of aggressive DAVF is an extremely rare occurrence. The present study aims to identify the incidence and factors determining spontaneous resolution of aggressive DAVF. METHODS: All the patients presenting to our institution with suspected DAVF during the study period (July 2013 - December 2015) were prospectively enrolled into a database...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427126/-patency-rate-of-autogenous-arteriovenous-fistula-after-repairment-in-the-patients-with-late-fistula-dysfunction-faliure
#15
M Zhou, F P Lu
Objective: To invesitigate 3-year patency rate of autogenous arteriovenous fistula(AVF)in the patients with late fistula dysfunction/failure. Methods: The prospective study was carried out in the First Hospital of Tsinghua University from March 2012 to March 2013. A total of 136 maintenance hemodialysis patients with late AVF dysfunction/faliure who received AVF repairment were enrolled in the study. All the patients were divided into three groups according to surgical procedures: venous neointimal hyperplasia (VNH) stripping group (group A), non-VNH stripping group (group B) and creation of a new AVF group (group C)...
April 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28424037/aortic-customized-stent-graft-treatment-of-postnephrectomy-renal-pedicle-arteriovenous-fistula
#16
Francisco Manresa-Manresa, José María Sánchez-Rodríguez, Verónica Nacarino-Mejías, Javier Peiró de Las Heras, Juan Francisco Ponce-González
A postnephrectomy renal acquired arteriovenous fistula (AVF) is a rare clinical entity that may cause high-output heart failure. Most of the cases are identified time along after surgery. We present a case of a postnephrectomy renal AVF treated with aortic customized stent-graft.
May 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28424011/endovascular-treatment-evolution-for-pure-intraorbital-arteriovenous-fistula-three-case-reports-and-literature-review
#17
Xianli Lv, Wei Li, Aihua Liu, Ming Lv, Chuhan Jiang
Background and importance Intraorbital arteriovenous fistulas (IOAVFs) are rare and cause eye redness, exophthalmos, blurry vision and bruit. Whereas in the past they were treated conservatively, surgically or transarterially, recent developments in transvenous embolization have improved their treatment. In this paper the authors report three cases of IOAVFs treated endovascularly and review the evolution of treatment options. Methods Three cases of purely IOAVF enrolled in our center were reported and a PubMed literature search was performed using "pure intraorbital arteriovenous fistula" and "arteriovenous fistula of the optic nerve sheath...
April 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28423125/coronary-arteriovenous-fistulas-in-adult-patients-surgical-management-and-outcomes
#18
Sebnem Albeyoglu, Mustafa Aldag, Ufuk Ciloglu, Murat Sargin, Tugba Kemaloglu Oz, Hakan Kutlu, Sabri Dagsali
Objective: The aim of this study was to describe the demographic, clinical and anatomic characteristics of coronary arteriovenous fistulas in adult patients who underwent open cardiac surgery and to review surgical management and outcomes. Methods: Twenty-one adult patients (12 female, 9 male; mean age: 56.1±7.9 years) who underwent surgical treatment for coronary arteriovenous fistulas were retrospectively included in this study. Coronary angiography, chest X-ray, electrocardiography and transthoracic echocardiography were preoperatively performed in all patients...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28420654/changes-in-the-profile-of-endovascular-procedures-performed-in-freestanding-dialysis-access-centers-over-15-years
#19
Gerald A Beathard, Aris Urbanes, Terry Litchfield
BACKGROUND AND OBJECTIVES: Marked changes occurred in the vascular access profile of patients receiving hemodialysis in the United States over the 15-year period of 2001-2015. This study was undertaken to evaluate how these changes have affected dialysis access maintenance and salvage procedures performed in freestanding dialysis access centers and to examine the effectiveness, efficiency, and safety of these procedures in this setting. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Data were collected from freestanding, dedicated dialysis access centers operating under a common system of management...
April 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28415162/value-of-doppler-evaluation-of-physically-abnormal-fistula-hemodynamic-guidelines-and-access-outcomes
#20
Seong Cho, Yu-Ji Lee, Sung-Rok Kim
Background/Aims: The strategy of access care at out center involves the use of ultrasound (USG) in case of physical examination (PE) abnormality. USG determines the need of angiography. This study investigated the possible association between the need for percutaneous transluminal angioplasty (PTA) and hemodynamic parameters of USG. The study also assessed the effects of this monitoring strategy on outcomes in comparison with a historical control. Methods: A retrospective study of the medical records of 127 patients (65 PTA, 62 non-PTA) was conducted...
April 18, 2017: Korean Journal of Internal Medicine
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