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arteriovenous graft

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https://www.readbyqxmd.com/read/28078825/ethanol-combined-with-heparin-as-a-locking-solution-for-the-prevention-of-catheter-related-blood-stream-infections-in-hemodialysis-patients-a-prospective-randomized-study
#1
Sofia Sofroniadou, Ioanna Revela, Alexandros Kouloubinis, Ioanna Makriniotou, Sinodi Zerbala, Despina Smirloglou, Petros Kalocheretis, Apostolos Drouzas, George Samonis, Christos Iatrou
Introduction Ethanol lock solution has been mainly administered in paediatric and home parenteral nutrition patients in order to prevent catheter related blood stream infections (CRBSI). Its utility in hemodialysis (HD) patients with non-tunneled-uncuffed catheter (NTC) has been poorly explored. Methods We conducted a prospective randomized study in chronic HD patients requiring a newly inserted NTC-while awaiting for the maturation of an already established arteriovenous fistula (AVF) or arteriovenous graft (AVG) or tunneled-cuffed catheter insertion...
January 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28064472/arteriovenous-grafts-much-maligned-but-in-need-of-reconsideration
#2
Michael Allon
There are substantial variations in arteriovenous fistula (AVF) use among hemodialysis patients in different countries, in different regions of the U.S., and even in different hemodialysis units within a single metropolitan area. These variations persist after adjustment for patient demographics and comorbidities, suggesting that practice patterns play a major role in determining the frequency of AVF use. These observations led to vascular access guidelines urging nephrologists and surgeons to increase AVF creation in patients with chronic kidney disease...
January 8, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28055065/effect-of-fish-oil-supplementation-and-aspirin-use-on-arteriovenous-fistula-failure-in-patients-requiring-hemodialysis-a-randomized-clinical-trial
#3
Ashley B Irish, Andrea K Viecelli, Carmel M Hawley, Lai-Seong Hooi, Elaine M Pascoe, Peta-Anne Paul-Brent, Sunil V Badve, Trevor A Mori, Alan Cass, Peter G Kerr, David Voss, Loke-Meng Ong, Kevan R Polkinghorne
Importance: Vascular access dysfunction is a leading cause of morbidity and mortality in patients requiring hemodialysis. Arteriovenous fistulae are preferred over synthetic grafts and central venous catheters due to superior long-term outcomes and lower health care costs, but increasing their use is limited by early thrombosis and maturation failure. ω-3 Polyunsaturated fatty acids (fish oils) have pleiotropic effects on vascular biology and inflammation and aspirin impairs platelet aggregation, which may reduce access failure...
January 3, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28042558/long-term-outcomes-of-arteriovenous-grafts-for-hemodialysis-in-lower-extremities
#4
Seok Han, Dan Song, Sangchul Yun
PURPOSE: The lower extremity has received its fair share of attention as a vascular access site in patients who have exhausted their upper arm vessels. However, experiences with lower extremity arteriovenous grafts (AVGs) have so far been disappointing because of high infection rates and severe limb ischemia. We report our experience with hemodialysis access from the lower extremity. MATERIALS AND METHODS: A retrospective review of 60 lower extremity AVGs created between January 2003 and December 2011 was performed...
December 2016: Vascular Specialist International
https://www.readbyqxmd.com/read/28031169/the-hypoxanthine-xanthine-oxidase-axis-is-not-involved-in-the-initial-phase-of-clinical-transplantation-related-ischemia-reperfusion-injury
#5
Leonie G M Wijermars, Jaap A Bakker, Dorottya K de Vries, Cornelis J F van Noorden, Jorgen Bierau, Sarantos Kostidis, Oleg A Mayboroda, Dimitrios Tsikas, Alexander F Schaapherder, Jan H N Lindeman
The hypoxanthine-xanthine oxidase (XO) axis is considered to be a key driver of transplantation related ischemia reperfusion (I/R) injury. Whereas interference with this axis effectively quenches I/R injury in preclinical models, there is limited efficacy of XO inhibitors in clinical trials. In this context, we considered clinical evaluation of a role for the hypoxanthine-XO axis in human I/R to be relevant. Patients undergoing renal allograft transplantation were included (n=40) and classified based on duration of ischemia (short; intermediate; prolonged)...
December 28, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27989350/iatrogenic-arteriovenous-fistula-with-associated-pseudoaneurysm-of-posterior-tibial-artery-after-revision-total-ankle-arthroplasty-a-case-report
#6
Benjamin M Wooster, Nathan L Grimm, James K DeOrio, Suhail K Mithani
Iatrogenic vascular injuries in elective orthopedic surgery are rare. However, these are important complications to recognize early and treat appropriately because the potential sequelae can be devastating. Arteriovenous fistula of the lower extremity after total ankle arthroplasty has not been previously described in published studies. The proper diagnosis of arteriovenous fistulas can be difficult without a high index of suspicion, and treatment often involves surgical intervention. We present the case of a 62-year-old male who developed an iatrogenic arteriovenous fistula with associated pseudoaneurysm of the posterior tibial artery after revision total ankle arthroplasty that was treated with surgical ligation and excision, followed by reverse saphenous vein grafting...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27986484/a-comparison-of-brachial-artery-brachial-vein-arteriovenous-fistulas-with-arteriovenous-grafts-in-patients-with-poor-superficial-venous-anatomy
#7
Xuan-Binh D Pham, Jerry J Kim, Ezinne J Ihenachor, Aaron B Parrish, Jenny D Bleck, Amy H Kaji, Matthew C Koopmann, Christian de Virgilio
OBJECTIVE: The autogenous arteriovenous fistula (AVF) has been shown to be superior to the arteriovenous graft (AVG) with respect to cost, complications, and primary patency. Therefore, the National Kidney Foundation Disease Outcomes Quality Initiative guidelines recommend reserving AVGs for patients who do not have adequate superficial venous anatomy to support AVF placement. The brachial artery-brachial vein arteriovenous fistula (BVAVF) has emerged as an autologous last-effort alternative...
December 13, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27982343/intraoperative-analysis-of-flow-dynamics-in-arteriovenous-composite-y-grafts
#8
Heraldo Guedis Lobo, José Glauco Lobo, Matheus Duarte Pimentel, Bruno Gadelha Bezerra Silva, Camylla Santos de Souza, Marília Leitão Montenegro, Maria Cláudia de Azevedo Leitão, Francisco Vagnaldo Fechine Jamacuru
Objective: Composite graft of left internal thoracic artery and great saphenous vein in revascularization of the left coronary system is a technique well described in literature. The aim of this study is to analyze blood flow dynamics in this configuration of composite graft especially in what concerns left internal thoracic artery's adaptability and influence of great saphenous vein segment on left internal thoracic artery's flow. Methods: Revascularization of left coronary system with composite graft, with left internal thoracic artery revascularizing the anterior interventricular artery and a great saphenous vein segment, anastomosed to the left internal thoracic artery, revascularizing another branch of the left coronary system, was performed in 23 patients...
September 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27972285/economic-value-of-eptfe-stent-grafts-compared-to-balloon-angioplasty-for-treating-thrombosed-and-dysfunctional-arteriovenous-grafts-in-england
#9
B A Mohr, R M Evans
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27964855/a-case-of-brachiocephalic-fistula-steal-and-the-emergency-physician-s-approach-to-hemodialysis-arteriovenous-fistula-complications
#10
Erica Simon, Brit Long, Kyle Johnston, Shane Summers
BACKGROUND: Chronic kidney disease is common in the United States, with many patients maintained on hemodialysis (HD). The process of HD requires vascular access through an arteriovenous (AV) fistula, AV graft, or central venous catheter. Today, as a result of the National Kidney Foundation's "Fistula First" initiative, nearly 55% of HD patients utilize an AV fistula. As there is significant morbidity and mortality associated with fistula placement and recurrent fistula cannulation, emergency physicians must be equipped to recognize and treat fistula complications...
December 10, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27951576/future-trends-in-vascular-access-creation
#11
Surendra Shenoy
Delivery of a prescribed dialysis dose, which is critical for longevity on hemodialysis, is directly dependent on vascular access (VA). However, VA is fraught with high failure rates and has room for innovation. Arteriovenous fistula (AVF), considered the 'best choice', has a high 'failure to mature' rate. Arteriovenous grafts (AVGs) are considered when patients are poor candidates for or have failed AVF, but have a high incidence of infections and thrombosis. Due to associated morbidity and mortality from complications, central venous catheters are considered only as 'bridging short-term access' when there is an urgent need for dialysis...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/27951557/prospects-for-vascular-access-education-in-developing-countries-current-situation-in-cambodia
#12
Toshihide Naganuma, Yoshiaki Takemoto
We report our activities training doctors on vascular access procedures at International University (IU) Hospital in Cambodia through a program facilitated by Ubiquitous Blood Purification International, a nonprofit organization that provides medical support to developing countries in the field of dialysis medicine. Six doctors from Japan have been involved in the education of medical personnel at IU, and we have collectively visited Cambodia about 15 times from 2010 to 2016. In these visits, we have performed many operations, including 42 for arteriovenous fistula, 1 arteriovenous graft, and 1 percutaneous transluminal angioplasty...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/27935552/prefabrication-and-free-transfer-of-a-tissue-engineered-composite-flap-an-experimental-model-in-the-rat
#13
V Mandlik, A Kehrer, L Jiga, B Hoinoiu, M Ionac, F Jung, R Staudenmaier, L Prantl
BACKGROUND: The technique of flap-prefabrication has been successfully established in tissue engineering: missing intrinsic vascularisation of engineered tissue can be generated in vivo by microsurgical vesselloop construction. It is possible to move engineered tissue into a defect with microsurgery. In the literature, the combination of engineered tissue covered with skin is not widely reported. OBJECTIVE: Aim of this study was to establish a model to investigate scaffold prefabrication with full thickness skin graft coverage with subsequent free tissue transfer...
December 8, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27922953/total-maxillary-reconstruction-with-a-bi-paddle-double-barrel-osteocutaneous-fibular-flap-and-arteriovenous-saphenous-loop-after-a-globe-sparing-total-maxillectomy-due-to-osteosarcoma
#14
Wan-Ling Tseng, Tzu-Yen Chang, Kuo-Shu Hung, Szu-Han Chen, Jenn-Ren Hsiao, Yao-Chou Lee
BACKGROUND: The titanium mesh or bone graft is usually used for orbital support after a globe-sparing total maxillectomy. However, its use can invite complications, such as infection, exposure, and absorption, especially for patients who require adjuvant radiotherapy. Here, the authors present a patient who received total maxillary reconstruction with an osteocutaneous fibular flap. METHODS: A 53-year-old man with the diagnosis of maxillary osteosarcoma received a globe-sparing total maxillectomy...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27904865/giant-true-brachial-artery-aneurysm-after-hemodialysis-fistula-closure-in-a-renal-transplant-patient
#15
Doriana Ferrara, Michele Di Filippo, Flavia Spalla, Anna Maria Giribono, Emanuela Viviani, Annamaria Santagata, Umberto Bracale, Michele Santangelo, Luca Del Guercio, Umberto Marcello Bracale
The usual manifestation of brachial artery aneurysms is the incidental finding of a swelling of the arm, combined with paresthesia or pain in some cases. The etiology is often traumatic or secondary to drug abuse. Pathophysiology of brachial artery dilation in these cases is not completely clear. We herein describe a case of a 61-year-old male presenting with a giant, painful, pulsatile mass on his left arm. He was submitted to a cadaveric kidney transplant in 2005. He had a functioning arteriovenous fistula (AVF) on his right arm, and a spontaneously thrombosed radiocephalic AVF on his left arm...
September 2016: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/27896413/endovascular-revascularization-of-hemodialysis-thrombosed-grafts-with-the-hydrodynamic-thrombectomy-catheter-our-7-year-experience
#16
Patrícia Bermudez, Nestor Fontseré, Gaspar Mestres, Andres García-Gámez, Marta Barrufet, Marta Burrel, Rosa Gilabert, Fernando Gómez, Juan Macho
PURPOSE: To evaluate the efficacy and safety of the hydrodynamic thrombectomy catheter (AngioJet DVX) in the salvage of thrombosed hemodialysis vascular grafts. MATERIALS AND METHODS: A retrospective study was designed, including all patients with occluded arteriovenous grafts treated with the AngioJet system between 2007 and 2014 in our institution. Outcomes included technical success, clinical success, complications, and primary and secondary patencies. Procedural success was defined as angiographic confirmation of flow restoration, the presence of a pulsatile thrill along the graft, and successful resumption of at least one hemodialysis session...
November 28, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27886362/balloon-assisted-venous-access-salvage-through-a-thrombosed-arteriovenous-graft
#17
Chen Pong Wong, Karthikeyan Damodharan, Thijs A J Urlings, Sivanathan Chandramohan
INTRODUCTION: Maintaining vascular access by means of radiological intervention has become the mainstay of management of patients with central venous stenoses and occlusions (CVO), which can be challenging. We present a case of balloon-assisted percutaneous puncture of an occluded left subclavian vein, through a thrombosed arteriovenous graft, for a tunneled dialysis catheter insertion. METHODS: A thrombosed left arm arteriovenous graft was accessed, and the occluded left subclavian vein was traversed with 0...
November 22, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27868336/vascular-imaging-for-hemodialysis-vascular-access-planning
#18
Rita L McGill, Robin Ruthazer, Eduardo Lacson, Klemens B Meyer, Dana C Miskulin, Daniel E Weiner
Introduction Central venous catheters (CVC) increase risks associated with hemodialysis (HD), but may be necessary until an arteriovenous fistula (AVF) or graft (AVG) is achieved. The impact of vascular imaging on achievement of working AVF and AVG has not been firmly established. Methods Retrospective cohort of patients initiating HD with CVC in 2010-2011, classified by exposure to venography or Doppler vein mapping, and followed through December 31, 2012. Standard and time-dependent Cox models were used to determine hazard ratios (HRs) of death, working AVF, and any AVF or AVG...
November 20, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27834454/operative-and-perioperative-management-of-infected-arteriovenous-grafts
#19
Ehsan Benrashid, Linda M Youngwirth, Leila Mureebe, Jeffrey H Lawson
Vascular graft infections are a particularly troublesome complication for dialysis patients, many of whom are in an already immunocompromised state. The objective of this review is to detail the risk factors, etiology, diagnosis, perioperative and operative management of vascular graft infections.
November 3, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27834451/elements-of-dialysis-nursing-practice-associated-with-successful-cannulation-result-of-an-international-survey
#20
Maria Teresa Parisotto, Francesco Pelliccia, Aileen Grassmann, Daniele Marcelli
BACKGROUND/AIM: Vascular access (VA) cannulation is an essential skill for dialysis nurses: failure to correctly repeat this operation daily may result in serious complications for the patients. This study investigates if different aspects of arteriovenous fistula and graft cannulation have an effect on the development of acute access complications, which may affect the VA survival. METHODS: In April 2009 a cross-sectional survey was conducted in 171 dialysis units located in Europe, the Middle East and Africa to collect details on VA cannulation practices...
November 9, 2016: Journal of Vascular Access
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