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https://www.readbyqxmd.com/read/28710090/the-clinical-and-economic-effect-of-vascular-access-selection-in-patients-initiating-hemodialysis-with-a-catheter
#1
Alian Al-Balas, Timmy Lee, Carlton J Young, Jeffrey A Kepes, Jill Barker-Finkel, Michael Allon
Patients in the United States frequently initiate hemodialysis with a central venous catheter (CVC) and subsequently undergo placement of a new arteriovenous fistula (AVF) or arteriovenous graft (AVG). Little is known about the clinical and economic effects of initial vascular access choice. We identified 479 patients starting hemodialysis with a CVC at a large medical center (during 2004-2012) who subsequently had an AVF (n=295) or AVG (n=105) placed or no arteriovenous access (CVC group, n=71). Compared with patients receiving an AVG, those receiving an AVF had more frequent surgical access procedures per year (1...
July 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28700182/-brachial-artery-pseudoaneurysm-a-rare-but-serious-complication-in-hemodialysis-patients-with-arteriovenous-fistula
#2
Andrea Mancini, Giuseppe Castriotta, Pernina Angelini, Michele Bozzi, Vincenzo Giancaspro, Elvira La Raia, Maria Teresa Nisi, Anna Rita Proscia, Giuseppe Tarantino, Ottavia Vitale, Cristoforo Cuzzola
A pseudoaneurysm or false aneurysm of the brachial artery is an uncommon occurrence in patients receiving hemodialysis with arteriovenous fistula (AVF). We describe the case of a 76-year-old woman presenting with a large, tender, pulsatile mass in the right antecubital region 10 cm from the AVF. B-mode ultrasound examination revealed a saccular hematoma. Color doppler showed a recirculation movement of blood, creating a two colors image called "Korean flag". The patient was transferred to the surgical unit where she first underwent ultrasound-guided compression and then surgical repair of the pseudoaneurysm...
June 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28695442/fistula-first-initiative-historical-impact-on-vascular-access-practice-patterns-and-influence-on-future-vascular-access-care
#3
Timmy Lee
The vascular access is the lifeline for the hemodialysis patient. In the United States, the Fistula First Breakthrough Initiative (FFBI) has been influential in improving use of arteriovenous fistulas (AVF) in prevalent hemodialysis patients. Currently, prevalent AVF rates are near the goal of 66% set forth by the original FFBI. However, central venous catheter (CVC) rates remain very high in the United States in patients initiating hemodialysis, nearly exceeding 80%. A new direction of the of the FFBI has focused on strategies to reduce CVC use, and subsequently the FFBI has now been renamed the "Fistula First-Catheter Last Initiative"...
July 10, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28690870/spinal-dural-arteriovenous-fistula-a-case-series-and-review-of-imaging-findings
#4
Shandy Fox, Luke Hnenny, Uzair Ahmed, Kotoo Meguro, Michael E Kelly
INTRODUCTION: Spinal dural arteriovenous fistulae (sdAVF) are rare lesions. Patients typically present with slowly progressive myelopathy that is often mistaken for degenerative cervical or lumbar stenosis. On spinal magnetic resonance imaging (MRI), multisegmental T2 hyperintensities along with associated flow voids are pathognomonic of sdAVF. However, diagnosis can be difficult. Definitive diagnosis and localization is achieved with complete spinal angiography. Treatment options include open surgical ligation, endovascular embolization or multimodality treatment...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28684369/concomitant-lumbosacral-perimedullary-arteriovenous-fistula-and-spinal-dural-arteriovenous-fistula-a-case-report
#5
Jingwei Li, Guilin Li, Lisong Bian, Tao Hong, Jiaxing Yu, Hongqi Zhang, Feng Ling
BACKGROUND: and Importance Although multifocal spinal arteriovenous malformations (SAVMs) have been reported before, the present case is the first case of two different types, including perimedullary arteriovenous fistula (PMAVF) and spinal dural arteriovenous fistulas (SDAVFs) of lumbosacral arteriovenous malformations (AVMs), coexisting in one patient. We also report the use of hybrid techniques in the treatment of concomitant lumbosacral SAVMs for the first time. CLINICAL PRESENTATION: A 65-year-old man presented with a 4-year history of progressive sensory, motor, and sphincter dysfunction...
July 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28680825/the-feasibility-of-surgical-salvage-of-thrombosed-arteriovenous-fistula-by-an-interventional-nephrologist
#6
Seong Cho
BACKGROUND: Salvage of a thrombosed arteriovenous fistula (AVF) by secondary fistula conversion may be more effective than a conventional endovascular procedure for forearm fistula thrombosis. Surgical access procedures are an undeveloped area in interventional nephrology compared to endovascular procedures. Herein, the author report the results of surgical salvage of thrombosed AVFs by interventional nephrologists. METHODS: The author retrospectively analyzed 52 surgical salvage procedures for AVF thrombosis (radiocephalic fistula = 44 cases, brachiocephalic fistula = 8 cases) that were performed by interventional nephrologist between March 2007 and January 2016...
June 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28675347/rare-association-between-spinal-dural-arteriovenous-fistulas-and-dysraphisms-report-of-two-cases-and-review-of-the-literature-with-a-focus-on-pitfalls-in-diagnosis-and-treatment
#7
Talenti Giacomo, Vitale Giovanni, Cester Giacomo, Alessandro Della Puppa, Faggin Roberto, Causin Francesco
Spinal vascular malformations are uncommon yet important spinal pathologies commonly classified in congenital and acquired lesions. Spinal lipomas consist of three subtypes: intramedullary lipomas, lipomyelo(meningo)celes and lipomas of the filum. Although the association of spinal arteriovenous malformations (AVM) with other congenital anomalies is well known, the coexistence of dural arteriovenous fistulas (AVF) and tethered spinal cord is exceptionally rare and only eight cases have been reported. We present two cases from our institution and speculate on the possible origin of such a rare but insidious association...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28662308/gender-disparity-in-fistula-use-at-initiation-of-hemodialysis-varies-markedly-across-esrd-networks-analysis-of-usrds-data
#8
Mariana Markell, Amarpali Brar, Dimitre G Stefanov, Moro O Salifu
BACKGROUND: Gender disparities had been noted in the care of women with end stage renal disease (ESRD) in the early 2000's, including less frequent initiation of hemodialysis utilizing a fistula but more recent data have not been examined and underlying factors have not been extensively studied. STUDY DESIGN: Data from the United States Renal Data System (USRDS) were examined, including 202,999 hemodialysis patients. Only those who had received prior nephrology care were included...
June 29, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28655388/ultrasound-guided-percutaneous-endovascular-treatment-of-arteriovenous-fistula-graft
#9
Boštjan Leskovar, Tjaša Furlan, Simona Poznič, Maja Potisek, Anton Adamlje, Tomaž Ključevšek
BACKGROUND: Ultrasound-guided percutaneous endovascular treatment of arteriovenous fistula (AVF) or graft failure is an alternative to radiologically-guided angioplastic methods. Its main advantages are that it can be used with open or percutaneous access, using no contrast media and no radiation. The aim of this study was to analyze the results of ultrasound-guided endovascular treatment of arteriovenous access failure. MATERIAL AND METHODS: Preoperative ultrasound was used to determine the degree of stenosis and the size of balloon used in angioplasty...
June 28, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28652952/fibromuscular-dysplasia-with-spontaneous-coronary-artery-disease-presenting-as-acute-myocardial-infarction
#10
Ali Farooq, Waseem Amjad, Ata Ur Rahim Bajwa, Hassaan Yasin, Rizwan Ali, Muhammad Pervaiz
A 40-year-old female presented to a rural hospital with crushing substernal chest pain. An initial electrocardiogram showed ST elevation in lead II and aVF with elevated troponin I. She was immediately transferred to a tertiary care hospital. An emergent coronary angiogram did not show any significant coronary artery disease. On the second day, the patient experienced recurrence of severe chest pain with ST elevations in leads I, aVL, V5-V6, ST depressions in V1-V3, T-wave inversion over V2-V5. The troponin I level increased to > 40 ng/ml (normal 0...
May 23, 2017: Curēus
https://www.readbyqxmd.com/read/28652528/electrophysiological-characteristics-and-radiofrequency-catheter-ablation-treatment-of-idiopathic-ventricular-arrhythmias-successfully-ablated-from-the-ostium-of-the-coronary-sinus
#11
Yoshiaki Yui, Yukio Sekiguchi, Akihiko Nogami, Hiro Yamasaki, Takeshi Machino, Kenji Kuroki, Miyako Igarashi, Kazutaka Aonuma
BACKGROUND: Idiopathic ventricular arrhythmias (VAs) rarely arise from the epicardium at the crux of the heart. However, the electrophysiological characteristics of VAs successfully ablated from the ostium of the coronary sinus (CSO) have not yet been documented.Methods and Results:Electrocardiographic and electrophysiological data were analyzed in patients with idiopathic VAs successfully ablated from the CSO.Among 309 patients with idiopathic VAs treated with radiofrequency catheter ablation (RFCA), 6 (1...
June 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28648652/dialysis-related-parameters-influence-remodeling-in-the-venous-part-of-the-native-arteriovenous-fistula
#12
Tomasz Gołębiowski, Mariusz Kusztal, Krzysztof Letachowicz, Hanna Augustyniak-Bartosik, Maciej Szymczak, Magdalena Krajewska, Wojciech Marcinkowski, Wacław Weyde, Marian Klinger
AIM: The aim of this study was to evaluate the association of hemodynamic parameters related to hemodialysis and antropometric parameters of patients with changes in the venous part of the arteriovenous fistula (AVF) at points of needling. MATERIAL AND METHODS: 242 HD patients (60.3% men), with median age 65 [IQR 56-75] years, on HD treatment for a median of 49 [IQR 20-88] months with functioning fistula were recruited to the study. The history of vascular access, comorbidity, antropometric (BMI, BSA, body composition) and dialysis-related parameters were analyzed...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647630/endovascular-repair-of-iatrogenic-iliocaval-fistula-causing-high-output-cardiac-failure-after-spine-fusion
#13
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/28642879/aortic-arch-calcification-as-a-predictor-of-repeated-arteriovenous-fistula-failure-within-1-year-in-hemodialysis-patients
#14
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
#15
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/28638605/effect-of-ethnicity-and-socioeconomic-status-on-vascular-access-provision-and-performance-in-an-urban-nhs-hospital
#16
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/28625819/outcomes-of-relocation-of-basilic-vein-in-brachiobasilic-fistulas-in-chronic-renal-failure
#17
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
#18
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/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/28607615/diffuse-interstitial-fibrosis-assessed-by-cardiac-magnetic-resonance-is-associated-with-dispersion-of-ventricular-repolarization-in-patients-with-hypertrophic-cardiomyopathy
#20
David Hurtado-de-Mendoza, Celia P Corona-Villalobos, Iraklis Pozios, Jorge Gonzales, Yalda Soleimanifard, Sanjay Sivalokanathan, Diego Montoya-Cerrillo, Styliani Vakrou, Ihab Kamel, Wilfredo Mormontoy-Laurel, Ketty Dolores-Cerna, Jacsel Suarez, Sergio Perez-Melo, David A Bluemke, Theodore P Abraham, Stefan L Zimmerman, M Roselle Abraham
BACKGROUND: Hypertrophic cardiomyopathy (HCM) is characterized by myocyte hypertrophy, disarray, fibrosis, and increased risk for ventricular arrhythmias. Increased QT dispersion has been reported in patients with HCM, but the underlying mechanisms have not been completely elucidated. In this study, we examined the relationship between diffuse interstitial fibrosis, replacement fibrosis, QTc dispersion and ventricular arrhythmias in patients with HCM. We hypothesized that fibrosis would slow impulse propagation and increase dispersion of ventricular repolarization, resulting in increased QTc dispersion on surface electrocardiogram (ECG) and ventricular arrhythmias...
June 2017: Journal of Arrhythmia
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