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Arteriovenous fistulae

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https://www.readbyqxmd.com/read/28826919/surgical-treatment-for-spinal-dural-arteriovenous-fistulas-outcome-complications-and-prognostic-factors
#1
Jakub Wojciechowski, Przemysław Kunert, Arkadiusz Nowak, Tomasz Dziedzic, Tomasz Czernicki, Katarzyna Wójtowicz, Kamil Leśniewski, Andrzej Marchel
BACKGROUND AND PURPOSE: Spinal dural arteriovenous fistulas (SDAVFs) are rare, acquired pathology and they inevitably lead to severe disability if untreated. The aim of this study is to present the outcome and complications, and to find factors that may affect the outcome after surgical treatment. METHODS: Seventeen consecutive patients (men - 14, women - 3, age: 41-79) were retrospectively analyzed. The patients presented with paraparesis (88%), bladder symptoms (71%) and/or sensory disturbances (65%)...
July 10, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28826865/medial-tentorial-dural-arteriovenous-fistulae-embolization-single-experience-with-embolic-liquid-polymer-squid-and-review-of-the-literature
#2
Gioppo Andrea, Faragò Giuseppe, Caldiera Valentina, Caputi Luigi, Cusin Alberto, Ciceri Elisa
BACKGROUND: Tentorial dural arteriovenous fistulae (DAVF) are uncommon and complex fistulae located between the leaves of the tentorium cerebelli, with a specific anatomical and clinical presentation characterized by high hemorrhagic risk. We present a rare case of a medial tentorial DAVF successfully managed via a transarterial embolization utilizing Squid liquid polymer. CASE DESCRIPTION: A 60-year-old woman presented to our Institution with a history of left progressive hearing loss and tinnitus for over a year...
August 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28823140/pre-existing-arterial-pathologic-changes-affecting-arteriovenous-fistula-patency-and-cardiovascular-mortality-in-hemodialysis-patients
#3
Ja Young Lee, Young Ok Kim
The radiocephalic arteriovenous fistula (AVF) provides optimal vascular access for hemodialysis; it has a higher long-term patency rate and fewer complications than other vascular access methods. However, the AVF has a high primary failure rate. The presence of small-diameter vessels at anastomosis sites is an important risk factor for AVF failure. However, in a recent study, despite selecting an adequate artery and vein for creating an AVF by routine preoperative vascular mapping, AVF maturation and primary failure occurred...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28822665/the-associations-of-hemodialysis-access-type-and-access-satisfaction-with-health-related-quality-of-life
#4
Natalie Domenick Sridharan, Larry Fish, Lan Yu, Steven Weisbord, Manisha Jhamb, Michel S Makaroun, Theodore H Yuo
OBJECTIVE: In addition to age and comorbidities, health-related quality of life (HRQOL) is known to predict mortality in hemodialysis (HD) patients. Understanding the association of vascular access type with HRQOL can help surgeons to provide patient-centered dialysis access recommendations. We sought to understand the impact of HD access type on HRQOL. METHODS: We conducted a cross-sectional prospective study of community-dwelling prevalent HD patients in Pittsburgh, Pennsylvania...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822538/smooth-muscle-nitric-oxide-responsiveness-and-clinical-maturation-of-hemodialysis-arteriovenous-fistulae
#5
Xiaoyong Tong, Xiuyun Hou, Christopher Wason, Tal Kopel, Richard A Cohen, Laura M Dember
The arteriovenous fistula is the preferred type of hemodialysis vascular access for patients with end-stage renal disease, but a high proportion of newly created fistulas fail to mature for use. Stenosis caused by neointimal hyperplasia often is present in fistulas with maturation failure, suggesting that local mechanisms controlling vascular smooth muscle cell (SMC) migration and proliferation are important contributors to maturation failure. SMCs cultured from explants of vein tissue obtained at the time of fistula creation from 19 patients with end-stage renal disease were studied to determine whether smooth muscle responsiveness to nitric oxide is associated with fistula maturation outcomes...
September 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28818827/endovascular-treatment-of-dural-arteriovenous-fistulas-of-the-transverse-and-sigmoid-sinuses-using-transarterial-balloon-assisted-embolization-combined-with-transvenous-balloon-protection-of-the-venous-sinus
#6
E Piechowiak, F Zibold, T Dobrocky, P J Mosimann, D Bervini, A Raabe, J Gralla, P Mordasini
BACKGROUND AND PURPOSE: Combined transarterial balloon-assisted endovascular embolization with double-lumen balloon microcatheters and concomitant transvenous balloon protection was described as a promising treatment technique for dural arteriovenous fistulae of the transverse and sigmoid sinus. The purpose of this study was to evaluate the technical efficacy and safety of this combined treatment technique. MATERIALS AND METHODS: Nine consecutive patients presenting with dural arteriovenous fistulas of the transverse and sigmoid sinuses underwent combined transarterial and transvenous balloon-assisted endovascular embolization...
August 17, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28808648/traumatic-arteriovenous-malformation-of-the-superficial-temporal-artery
#7
Mahmoud Omrani Fard, Omid Yousofnejad, Mohammadbagher Heydari
Most of the vascular lesions on head and neck soft tissue are congenital, but a rare cause can be trauma. A 23-year-old man came to our clinic with a wide pulsatile tortuous mass in the left temporofrontal area. That mass was appeared since 10 years ago. Ten years before his coming to our clinic, he had a blunt trauma in that area. After that, a small wound appeared there and healed gradually. In clinical examination, mass was large and pulsatile, and a fine murmur was detected from it. In paraclinical examination, computed tomography scan with intravenous contrast and sonography revealed a vascular mass with arteriovenous (AV) fistula in soft tissue only in that area...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28808595/a-case-of-superficial-femoral-arteriovenous-fistula-and-severe-venous-stasis-ulceration-managed-with-an-iliac-extender-prosthesis
#8
Nicole Ilonzo, Selena Goss, Chun Yang, Michael Dudkiewicz
Most femoral artery arteriovenous fistulas occur as a result of percutaneous interventions. However, arteriovenous fistulas can occur in the setting of trauma, with resultant consequences such as heart failure, steal syndrome, or venous insufficiency. Indications for endovascular repair in this setting are limited to patients who are at too high risk for anesthesia, have a hostile groin, or would not survive significant bleeding. We report the case of a traumatic femoral arteriovenous fistula, causing severe venous insufficiency and arteriomegaly, in a 58-year-old male, with history of traumatic gunshot wound complicated by popliteal DVT...
2017: Case Reports in Vascular Medicine
https://www.readbyqxmd.com/read/28808569/study-and-therapeutic-progress-on-spinal-cord-perimedullary-arteriovenous-fistulas
#9
Tiefeng Ji, Yunbao Guo, Lei Shi, Jinlu Yu
Spinal cord perimedullary arteriovenous fistulas (PMAVFs) are rare and belong to type IV spinal cord arteriovenous malformations (AVMs). Little is known regarding the treatment and prognosis of spinal cord PMAVFs. In the present study the relevant literature from PubMed was reviewed, and it was found that these fistulas can occur at all ages but are more common in children. In children, most spinal cord PMAVFs are large and with high flow, begin with bleeding and are frequently associated with hereditary hemorrhagic telangiectasia...
September 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28805538/effects-of-far-infrared-therapy-on-arteriovenous-fistulas-in-hemodialysis-patients-a-meta-analysis
#10
Qingsong Wan, Shikun Yang, Li Li, Fenfen Chu
BACKGROUND: Far infrared (FIR) therapy may have a beneficial effect on maturity and function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this pooled analysis to assess the protective effects of FIR therapy in HD patients. METHODS: The randomized controlled trials (RCTs) and quasi-RCTs of FIR therapy for HD patients were searched from multiple databases. Relevant studies were screened according to the predefined inclusion criteria...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28804237/aneurysmal-degeneration-of-the-brachial-artery-after-vascular-access-creation-surgical-treatment-results
#11
Sérgio Teixeira, Pedro Sá Pinto, Carlos Veiga, Ivone Silva, Rui Almeida
True peripheral artery aneurysms proximal to a longstanding arteriovenous fistula is a well-recognized complication. Late aneurysmal degeneration is rare. This study analyzed the characteristics, therapeutic options, and outcomes of true donor brachial artery aneurysms (DBAA) after arteriovenous fistula (AVF) for hemodialysis. We retrospectively collected the data of patients with DBAA after AVF creation, surgically repaired between January 2001 and September 2015. We excluded patients with pseudoaneurysms, anastomotic aneurysms, and infected aneurysms...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28803169/stereotactic-radiosurgery-for-dural-arteriovenous-fistulas-without-cortical-venous-reflux
#12
Daniel A Tonetti, Bradley A Gross, Brian T Jankowitz, Kyle M Atcheson, Hideyuki Kano, Edward A Monaco, Ajay Niranjan, L Dade Lunsford
BACKGROUND: The rationale for treatment of dural arteriovenous fistulas (dAVF) without cortical venous reflux is symptomatic resolution. Most studies of dural arteriovenous fistula treatment, including those for stereotactic radiosurgery (SRS), have focused on angiographic obliteration instead of clinical symptomatic outcome. METHODS: The authors evaluated their institutional experience with SRS for cerebral dAVFs without cortical venous reflux from 1991 to 2016, evaluating angiographic and clinical outcomes, focusing on the course of pulsatile tinnitus and/or ocular symptoms after treatment...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802521/midterm-follow-up-of-20-consecutive-patients-with-nonaneurysmal-subarachnoid-hemorrhage-of-unknown-origin-in-a-single-center-two-cases-of-de-novo-development-of-dural-arteriovenous-fistula
#13
Tomotaka Ohshima, Yosuke Tamari, Taiki Yamamoto, Shunsaku Goto, Kojiro Ishikawa
BACKGROUND AND PURPOSE: The mechanisms and prognosis of underlying subarachnoid hemorrhage of unknown origin remain unclear. Previous investigators have suggested a relationship between nonaneurysmal perimesencephalic subarachnoid hemorrhage and venous abnormalities like a primitive venous drainage of the basal vein of Rosenthal. We report the outcome of a midterm follow-up of 20 consecutive patients with nonaneurysmal subarachnoid hemorrhage of unknown origin, and 2 patients in whom the development of new dural arteriovenous fistulas after subarachnoid hemorrhage of unknown origin were detected during follow-up...
August 10, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28801711/safety-of-onyx-transarterial-embolization-of-skull-base-dural-arteriovenous-fistulas-from-meningeal-branches-of-the-external-carotids-also-fed-by-meningeal-branches-of-internal-carotid-or-vertebral-arteries
#14
Thiago G Abud, Emmanuel Houdart, Jean-Pierre Saint-Maurice, Daniel G Abud, Carlos E Baccin, Andrew D Nguyen, Nitamar Abdala
PURPOSE: To analyze the angiographic and clinical results of transarterial embolization with Onyx (Medtronic-Covidien, Irvine, CA) in dural arteriovenous fistulas (DAVFs) partially fed by arteries arising from the carotid siphon or the vertebral arteries. METHODS: We isolated 40 DAVFs supplied by either the tentorial artery of the internal carotid artery (ICA) or the posterior meningeal artery of the vertebral artery. These DAVFs were embolized with Onyx through the middle meningeal artery or the occipital artery...
August 11, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28800839/outcomes-of-intervention-for-cephalic-arch-stenosis-in-brachiocephalic-arteriovenous-fistulas
#15
Mark G Davies, Taylor D Hicks, George M Haidar, Hosam F El-Sayed
BACKGROUND: Development of recalcitrant stenotic lesions of the cephalic arch is a significant cause of dysfunction of brachiocephalic access arteriovenous fistulas (AVFs). Endovascular and surgical therapy can be used to treat cephalic arch stenosis. The aim of this study was to evaluate the outcomes of endovascular and surgical interventions for cephalic arch stenosis. METHODS: A retrospective review of all patients during a 16-year period with a compromised but not occluded brachiocephalic AVF due to cephalic arch stenosis was undertaken...
August 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28798220/vascular-access-type-and-clinical-outcomes-among-elderly-patients-on-hemodialysis
#16
Timmy Lee, Mae Thamer, Qian Zhang, Yi Zhang, Michael Allon
BACKGROUND AND OBJECTIVES: The optimal type of initial permanent access for hemodialysis among the elderly is controversial. Duration of central venous catheter dependence, patient comorbidities, and life expectancy are important considerations in whether to place an arteriovenous fistula or graft. We used an observational study design to compare clinical outcomes in elderly patients who initiated hemodialysis with a central venous catheter and subsequently had an arteriovenous fistula or graft placed...
August 10, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28797991/an-unusual-case-of-proctosigmoiditis-secondary-to-arteriovenous-fistulization
#17
Veljko Strjina, Scott R Kelley
Refractory chronic colitis presents a medical and surgical challenge, and underlying etiologies are diverse with potential for misclassification as inflammatory bowel disease. We present an unusual case of chronic proctosigmoiditis with rare vascular etiology. A 48-year-old Caucasian male presented with severe diarrhea, weight loss, and abdominal pain. Computed tomography (CT) suggested proctosigmoiditis. Colonoscopy and biopsy findings were non-specific but were suggestive of ischemic etiology and venous congestion...
August 9, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28794652/stent-tunnel-technique-to-save-thrombosed-native-hemodialysis-fistula-with-extensive-venous-aneurysm
#18
Martin Rabellino, Guillermo J Rosa-Diez, Sergio A Shinzato, Pablo Rodriguez, Oscar A Peralta, Maria S Crucelegui, Rosario Luxardo, Agustina Heredia-Martinez, Mariela I Bedini-Rocca, Ricardo D García-Mónaco
INTRODUCTION AND PURPOSE: The increasing number of patients undergoing hemodialysis and the limited number of access sites have resulted in an increasing number of techniques to maintain vascular access for hemodialysis. Thrombosed arteriovenous (AV) fistulas with large venous aneurysms have poor treatment results, with both endovascular and surgical techniques, leading to a high rate of definitive AV access loss. The purpose of this study was to review the feasibility and initial results of this novel endovascular treatment of thrombosed AV fistulas with large venous aneurysms...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28793059/comparative-efficacy-and-safety-of-contact-force-sensing-catheter-and-second-generation-cryoballoon-ablation-for-atrial-fibrillation-a-meta-analysis
#19
X Zhou, W Lv, W Zhang, Y Ye, Y Li, Q Zhou, J Zhang, Q Xing, Y Lu, L Zhang, H Wang, W Qin, B Tang
This meta-analysis compared the efficacy and safety of the contact force (CF)-sensing catheter and second-generation cryoballoon (CB) ablation for treating atrial fibrillation (AF). Six controlled clinical trials comparing ablation for AF using a CF-sensing catheter or second-generation CB were identified from PubMed, EMBASE, Cochrane Library, Wanfang Data, and China National Knowledge Infrastructure. The procedure duration was significantly lower in the CB group compared with that in the CF group [mean difference (MD)=29...
August 7, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28791991/erratum-complications-of-arteriovenous-fistula-with-polytetraflouroethylen-grafts-in-hemodialysis-patients
#20
(no author information available yet)
[This corrects the article DOI: 10.4103/1119-3077.146993.].
July 2017: Nigerian Journal of Clinical Practice
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