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Arteriovenous fistulae

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https://www.readbyqxmd.com/read/28648032/-interentional-therapy-in-apatient-with-congenital-hepatic-arteriovenous-fistula
#1
(no author information available yet)
No abstract text is available yet for this article.
June 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28647659/flow-diverters-as-a-useful-adjunct-to-traditional-endovascular-techniques-in-the-treatment-of-direct-carotid-cavernous-fistulas
#2
Christopher S Ogilvy, Rouzbeh Motiei-Langroudi, Mohammad Ghorbani, Christoph J Griessenauer, Abdulrahman Y Alturki, Ajith J Thomas
BACKGROUND: Direct carotid-cavernous sinus fistulas (CCF) are high flow arteriovenous shunts that are typically the result of a severe head injury. The endovascular treatment of these lesions includes the use of detachable balloons, coils, liquid embolic agents, and covered stents. To minimize the chance of treatment failure and subsequent complications, endoluminal reconstruction using a flow-diverting stent may be added to the treatment construct . METHODS: We present 3 cases and review the existing literature...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28647630/endovascular-repair-of-iatrogenic-iliocaval-fistula-causing-high-output-cardiac-failure-after-spine-fusion
#3
Seth Noland, Carlos A Espinoza, Jonathan D Dvorak, John D Rose, C Steven Powell
The case being presented is a 35-year-old female with a three-year history of progressive dyspnea and right-sided heart failure following spine surgery. Physical examination identified a continuous bruit in the lower abdomen radiating to her back which prompted further evaluation. Echocardiography showed normal left ventricle (LV) systolic function, enlarged right ventricle (RV), functional tricuspid regurgitation (TR) and moderate pulmonary hypertension. A computed tomography (CT) scan of the abdomen and pelvis demonstrated findings consistent with an arteriovenous fistula (AVF) between the right common iliac artery and the inferior vena cava (IVC)...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647193/cryopreserved-venous-allograft-is-an-acceptable-conduit-in-patients-with-current-or-prior-angioaccess-graft-infection
#4
Michael P Harlander-Locke, Peter F Lawrence, Aamna Ali, Esther Bae, James Kohn, Christopher Abularrage, Michael Ricci, Gary W Lemmon, Sotero Peralta, Jeffrey Hsu
OBJECTIVE: The durability of cryopreserved allograft has been previously demonstrated in the setting of infection. The objective of this study was to examine the safety, efficacy, patency, and cost per day of graft patency associated with using cryopreserved allograft (vein and artery) for hemodialysis access in patients with no autogenous tissue for native fistula creation and with arteriovenous graft infection or in patients at high risk for infection. METHODS: Patients implanted with cryopreserved allograft for hemodialysis access between January 2004 and January 2014 were reviewed using a standardized, multi-institutional database that evaluated demographic, comorbidity, procedural, and outcomes data...
June 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28645600/newly-detected-cervical-spinal-dural-arteriovenous-fistula-on-magnetic-resonance-angiography-causing-intracranial-subarachnoid-hemorrhage-a-case-report
#5
Hiroaki Matsumoto, Hiroaki Minami, Ikuya Yamaura, Yasuhisa Yoshida, Yutaka Hirata
BACKGROUND: Although an asymptomatic spinal dural arteriovenous fistula (SDAVF) can sometimes be incidentally detected on magnetic resonance imaging (MRI), there are no previous reports showing the development of an SDAVF on MRI or magnetic resonance angiography (MRA). CASE DESCRIPTION: A 64-year old man with unruptured vertebral artery dissection (VAD) developed a subarachnoid hemorrhage (SAH) during regular follow-up. Emergent endovascular coil internal trapping for the VAD was performed...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28642879/aortic-arch-calcification-as-a-predictor-of-repeated-arteriovenous-fistula-failure-within-1-year-in-hemodialysis-patients
#6
Yit-Sheung Yap, Kai-Ting Ting, Wen-Che Chi, Cheng-Hao Lin, Yi-Chun Liu, Po-Lin Kuo, Wan-Long Chuang
OBJECTIVES: The aim of the study was to identify the factors associated with repeated arteriovenous fistula (AVF) failure within 1-year, especially the impact of aortic arch calcification (AAC) on patency of AVF. MATERIALS AND METHODS: We retrospectively assessed chest radiography in hemodialysis patients who had undergone initial AVF. The extent of AAC was categorized into four grades (0-3). The association between AAC grade, other clinical variables, and repeated failure of AVF was then analyzed by binary logistic regression analysis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28639917/concomitant-staple-aneurysmorrhaphy-and-flow-calibrated-arteriovenous-fistula-banding-over-a-coronary-dilator-to-treat-hand-steal-syndrome
#7
Jennifer Baker, Rafael D Malgor
BACKGROUND: True venous aneurysm formation can occur in patients with arteriovenous fistulas (AVFs) for hemodialysis but association with steal syndrome is uncommon. METHODS: To describe a case of a patient on chronic hemodialysis through a right brachiocephalic fistula, who presents with associated steal syndrome and true arteriovenous access aneurysm. RESULTS: A 34-year-old female with true AVF aneurysm presented with hand steal syndrome confirmed by noninvasive studies...
July 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28639916/benefits-of-long-versus-short-thrombolysis-times-for-acutely-thrombosed-hemodialysis-native-fistulas
#8
Susanne Regus, Werner Lang, Marco Heinz, Michael Uder, Axel Schmid
INTRODUCTION: Local thrombolysis with a time of exposure to recombinant tissue plasminogen activator of 15 to 150 minutes is commonly used to declot acutely thrombosed hemodialysis fistulas. The duration of thrombolysis for the restoration of arteriovenous blood flow remains controversial. The aim of this study was to investigate the outcomes of long thrombolysis treatment (LTT, 3 hours or more) and short thrombolysis treatment (STT, less than 3 hours) in our institution. METHODS: We retrospectively analyzed 86 interventional declotting procedures (28 STT and 58 LTT) applied to 86 acutely thrombosed hemodialysis fistulas...
July 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28638605/effect-of-ethnicity-and-socioeconomic-status-on-vascular-access-provision-and-performance-in-an-urban-nhs-hospital
#9
Teun Wilmink, Anika Wijewardane, Kathryn Lee, Alexander Murley, Lee Hollingworth, Sarah Powers, Jyoti Baharani
BACKGROUND: The aim of this study was to examine the effect of ethnicity, socioeconomic group (SEG) and comorbidities on provision of vascular access for haemodialysis (HD). METHODS: This was a retrospective review of two databases of HD sessions and access operations from 2003-11. Access modality of first HD session and details of transplanted patients were derived from the renal database. Follow-up was until 1 January 2015. Primary failure (PF) was defined as an arteriovenous fistula (AVF) used for fewer than six consecutive dialysis sessions...
February 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28637732/outpatient-percutaneous-native-renal-biopsy-safety-profile-in-a-large-monocentric-cohort
#10
Dario Roccatello, Savino Sciascia, Daniela Rossi, Carla Naretto, Mario Bazzan, Laura Solfietti, Simone Baldovino, Elisa Menegatti
OBJECTIVES: We aim to evaluate the safety of performing percutaneous native kidney biopsy (PKB) as an outpatient procedure (implying an observation period of 6 hours) compared with the traditional inpatient policy. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS: Group I, in whom PKB was performed in the outpatient department (2012-2016) and followed by 6 hours' observation period and then by regular outpatient visits and group II, in whom PKB was performed and followed by at least 1 day hospital admission...
June 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28634312/-a-case-of-dural-arteriovenous-fistula-in-the-anterior-cranial-fossa-that-developed-remote-from-the-craniotomy-site-after-surgery
#11
Ichiro Kawahara, Takashi Fujimoto, Makoto Hirose, Keisuke Toyoda, Naoki Kitagawa
Dural arteriovenous fistula(dAVF)is relatively rare, and its etiology remains uncertain. Generally, dAVF is thought to be acquired and has been reported to develop secondary to sinus thrombosis, head injury, infection, and surgery. We report a rare case of dAVF in the anterior cranial fossa that developed remote from the craniotomy site after surgery. A 52-year-old man underwent surgery for hypertensive intracerebral hemorrhage 4 years prior. Perioperative imaging modalities demonstrated no abnormal vascular malformation except for an un-ruptured anterior communicating artery aneurysm...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28634065/remote-lesions-of-synchronous-sacral-and-cervical-dural-arteriovenous-fistulas-a-case-report
#12
Yasuyuki Kaku, Yuki Ohmori, Takayuki Kawano, Yuki Takeshima, Jun-Ichi Kuratsu
BACKGROUND: Spinal dural arteriovenous fistula (DAVF) is a rare disease and multiple concurrent lesions are extremely rare. Such multiple spinal DAVFs have similar outflow routes at neighboring levels. However, there have been no reported cases of remote lesions of multiple spinal DAVFs. The authors herein report a case of double synchronous cervical and sacral DAVFs. CASE DESCRIPTION: A 56-year-old man with no prior history of disease presented with progressive myelopathy, and spinal magnetic resonance imaging (MRI) showed extensive edema of the spinal cord from the conus to T7...
June 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28625906/the-impact-of-associated-nidal-lesions-in-outcome-of-brain-arteriovenous-malformations-after-radiosurgery-with-or-without-embolization
#13
Carlos Michel A Peres, Evandro Cesar de Souza, Manoel Jacobsen Teixeira, Eberval G Figueiredo, Jose Guilherme M P Caldas
BACKGROUND: Radiosurgery is a valuable option to treat arteriovenous malformations. There are correlations between some morphological nidal features and final results, and the benefits of preradiosurgical embolization have not been well established thus far. METHODS: Analysis of a longitudinal cohort of 47 consecutive patients who underwent radiosurgery with or without previous embolization. Embolizations were performed exclusively with n-butyl cyanoacrylate. Radiosurgery was delivered either as a single or divided in up to 5 equal fractions...
June 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28625819/outcomes-of-relocation-of-basilic-vein-in-brachiobasilic-fistulas-in-chronic-renal-failure
#14
Farzad Kakaei, Ahad Hasankhani, Mir-Salim Seyyed-Sadeghi, Peyman Virani, Tooraj Asvadi, Sina Zarrintan
BACKGROUND: In patients without or with injured cephalic vein, using the basilic vein for creating arteriovenous fistula (AVF) is the best way for hemodialysis. In order to create AVF, the basilic vein should be superficialized and lateralized. This study sought to examine outcome of relocation of basilic vein in brachiobasilic fistulas in patients with chronic renal failure (CRF). METHODS: We evaluated the outcome of creation of brachiobasilic fistula with transposition of basilic vein in 27 patients (14 males and 13 females with mean age of 60...
June 15, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28624422/endovascular-proximal-forearm-arteriovenous-fistula-for-hemodialysis-access-results-of-the-prospective-multicenter-novel-endovascular-access-trial-neat
#15
Charmaine E Lok, Dheeraj K Rajan, Jason Clement, Mercedeh Kiaii, Ravi Sidhu, Ken Thomson, George Buldo, Christine Dipchand, Louise Moist, Joanna Sasal
BACKGROUND: Hemodialysis arteriovenous fistulas (AVFs) are suboptimally used primarily due to problems with maturation, early thrombosis, and patient nonacceptance. An endovascular approach to fistula creation without open surgery offers another hemodialysis vascular access option. STUDY DESIGN: Prospective, single-arm, multicenter study (Novel Endovascular Access Trial [NEAT]). SETTINGS & PARTICIPANTS: Consecutive adult non-dialysis-dependent and dialysis-dependent patients referred for vascular access creation at 9 centers in Canada, Australia, and New Zealand...
June 9, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28624385/arteriovenous-radial-fistula-a-rare-and-delayed-complication-of-coronary-angiography
#16
Isaac Pascual, Rebeca Lorca, Pablo Avanzas, Daniel Hernández-Vaquero, César Morís
No abstract text is available yet for this article.
June 7, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28623998/ruptured-common-femoral-vein-pseudoaneurysm-from-a-common-femoral-arteriovenous-fistula-presenting-as-lower-extremity-steal-after-radiofrequency-ablation-of-the-great-saphenous-vein
#17
Robert Scott Brumberg, Cassie Davis
Radiofrequency ablation of the superficial venous systems has become one of the mainstays of minimally invasive approaches to varicose veins and chronic venous insufficiency. These procedures have high rates of success with scarce complications. This case report highlights a patient with a common femoral arteriovenous fistula presenting with lower extremity steal after radiofrequency ablation treatment of the great saphenous vein. During operative repair of the arteriovenous fistula, a pseudoaneurysm of the common femoral vein ruptured...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28621628/gamma-knife-surgery-for-clival-epidural-osseous-dural-arteriovenous-fistulas
#18
Cheng-Chia Lee, Ching-Jen Chen, Shao-Ching Chen, Huai-Che Yang, Chung Jung Lin, Chih-Chun Wu, Wen-Yuh Chung, Wan-Yuo Guo, David Hung-Chi Pan, Cheng-Ying Shiau, Hsiu-Mei Wu
OBJECTIVE Clival epidural-osseous dural arteriovenous fistula (DAVF) is often associated with a large nidus, multiple arterial feeders, and complex venous drainage. In this study the authors report the outcomes of clival epidural-osseous DAVFs treated using Gamma Knife surgery (GKS). METHODS Thirteen patients with 13 clival epidural-osseous DAVFs were treated with GKS at the authors' institution between 1993 and 2015. Patient age at the time of GKS ranged from 38 to 76 years (median 55 years). Eight DAVFs were classified as Cognard Type I, 4 as Type IIa, and 1 as Type IIa+b...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28611837/embolization-of-sacral-dural-arteriovenous-fistulas-a-case-series-and-literature-review
#19
Anthony M Alvarado, Diogo C Haussen, Koji Ebersole, Raul G Nogueira, Michael G Abraham
The authors report 2 cases of sacral dural arteriovenous fistula (AVF) presenting with gradual neurologic decline characterized by progressive lower extremity weakness and bowel and bladder incontinence. Spinal angiography demonstrated a sacral dural AVF with perimedullary vein engorgement and drainage extending to the level of the cervical spine in both cases. The fistulas were completely obliterated with n-BCA (n-butyl cyanoacrylate) embolic agent in one case, and with ethylene vinyl alcohol (Onyx) in the second, resulting in improvement of the symptoms in both patients...
March 2017: Interventional Neurology
https://www.readbyqxmd.com/read/28611519/sonographic-appearance-of-anal-cushions-of-hemorrhoids
#20
Adilijiang Aimaiti, Ma Mu Ti Jiang A Ba Bai Ke Re, Irshat Ibrahim, Hui Chen, Maimaitituerxun Tuerdi, Mayinuer
AIM: To evaluate the diagnostic value of different sonographic methods in hemorrhoids. METHODS: Forty-two healthy volunteers and sixty-two patients with grades I-IV hemorrhoids received two different sonographic examinations from January 2013 to January 2016 at the First and Second Hospitals of Xinjiang Medical University in a prospective way. We analyzed the ultrasonographic findings of these participants and evaluated the outcomes. Resected grades III and IV hemorrhoid tissues were pathologically examined...
May 28, 2017: World Journal of Gastroenterology: WJG
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