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arteriovenous graft fistula

H Tarık Kızıltan
Patients who have aortoiliac aneurysms with arteriovenous fistulas are difficult to treat. The traditional mode of surgical repair based on aneurysmal excision, fistula closure and graft inclusion has been associated with high perioperative mortality. As an alternative the exclusion technique has also been utilized. Over the years the popularity and success rate of endovascular techniques have increased in the treatment of these patients, yet a technical failure during an endovascular repair always makes surgical repair inevitable...
July 26, 2018: Heart Surgery Forum
Rebecca D Levit
Blood vessels convey essential nutrients to end organs, and when diseased, they must be replaced or bypassed. Traditionally plastic and synthetic materials have been used but are susceptible to thrombosis, stenosis, and poor patency rates. A recent report in Science Translational Medicine describes a decellularized matrix grown in vitro from commercially sourced fibroblasts that can be used as a vascular graft. Fibroblasts are grown for several weeks on a fibrin scaffold, laying down a collagen layer. After decellularization and transplantation as an arteriovenous fistula, this group showed that grafts remained patent for several weeks...
February 2018: JACC. Basic to Translational Science
D Kamińska, M Łukaszewski, N Kozera, K Kościelska-Kasprzak, D Bartoszek, O Mazanowska, W Goździk, P Chudoba, P Zaleska, A Lepiesza, M Klinger
Previously transplanted highly sensitized patients experience problems with subsequent transplantation. It is also difficult to provide optimal hemodynamic conditions during successive kidney transplantation in heart transplant recipients. PATIENT AND METHODS: We present a case of a 56-year old patient with end-stage renal failure after heart transplantation performed 21 years ago and hemodialyzed using arteriovenous fistula. The patient had 69% panel-reactive antibodies, had been on the active waiting list since 2013, and presented 335 positive crossmatches with deceased donors...
July 2018: Transplantation Proceedings
K Letachowicz, T Królicki, K Bardowska, A Drabik, K Zajdel, D Kamińska, K Madziarska, M Banasik, O Mazanowska, M Krajewska, M Klinger
INTRODUCTION: The prevalence of hypertension in renal graft recipients is high. It was postulated that central arteriovenous anastomosis may significantly reduce blood pressure. This preliminary study evaluates the impact of functioning arteriovenous fistula (AVF) on blood pressure control and renal allograft function. MATERIALS AND METHODS: One hundred sixty-two previously hemodialyzed kidney transplant recipients (108 males, 54 females, aged 52.7 ± 13.2 years, mean 6...
July 2018: Transplantation Proceedings
Seun Deuk Hwang, Jin Ho Lee, Seoung Woo Lee, Joong Kyung Kim, Moon-Jae Kim, Joon Ho Song
BACKGROUND: The benefit of access flow surveillance in preventing vascular access thrombosis and failure remains controversial, as many randomized clinical trials (RCTs) have failed to demonstrate consistent results. The aim of this study was to perform a meta-analysis including newly published RCTs with a subgroup analysis for arteriovenous fistulas (AVFs) and arteriovenous grafts (AVGs). METHODS: A systematic review of the available literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses...
July 2018: Medicine (Baltimore)
Scott O Trerotola, Jeffrey Lawson, Prabir Roy-Chaudhury, Theodore F Saad
BACKGROUND: Restenosis remains a problem in hemodialysis access interventions. Paclitaxel-coated balloons have shown promise in reducing access-related restenosis in small trials. The primary hypotheses for our multicenter trial were superior effectiveness at 180 days and noninferior safety at 30 days of a drug-coated balloon compared with conventional angioplasty for treatment of dysfunctional arteriovenous fistulas. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This randomized trial enrolled 285 patients with dysfunctional arteriovenous fistulas at 23 centers...
August 7, 2018: Clinical Journal of the American Society of Nephrology: CJASN
Farah Gillan Irani, Terence Kiat Beng Teo, Kiang Hiong Tay, Win Htet Yin, Hlaing Hlaing Win, Apoorva Gogna, Ankur Patel, Chow Wei Too, Shaun Xavier Ju Min Chan, Richard Hoau Gong Lo, Luke Han Wei Toh, Siew Ping Chng, Hui Lin Choong, Bien Soo Tan
Purpose To compare lesion primary patency and restenosis rates between drug-eluting balloon (DEB) percutaneous transluminal angioplasty (PTA) and conventional balloon PTA (cPTA) in the treatment of arteriovenous fistula (AVF) and arteriovenous graft (AVG) stenosis. Materials and Methods In this prospective study, 119 participants (mean age, 59.2 years; 79 men, 40 women) with failing AVFs (n = 98) or AVGs (n = 21) were randomly assigned to undergo either DEB PTA (n = 59) or cPTA (n = 60) from January 2012 to May 2013...
July 24, 2018: Radiology
Jayakumar Sreenivasan, Muhammad Ayub, Neha Yadav, Yasmeen Golzar
Iatrogenic aortocoronary arteriovenous fistula is a very rare complication of coronary artery bypass grafting in which one of the arterial grafts inadvertently forms a fistulous tract with a cardiac vein, shunting blood from the anastomosed coronary artery. We report a patient with an iatrogenic left internal mammary artery graft to cardiac vein fistula presenting with recurrent angina three years after a three-vessel coronary artery bypass grafting.
2018: Case Reports in Cardiology
C Del Giudice, D Van Den Heuvel, J Wille, T Mirault, E Messas, R Ferraresi, S Kum, M Sapoval
PURPOSE: To report our initial experience of fully percutaneous deep venous arterialization (pDVA) for the treatment of chronic critical limb ischemia (cCLI) after failed distal angioplasty. MATERIALS AND METHODS: pDVA was performed in five consecutive patients by creating an arteriovenous fistula (AVF) between a below the knee artery and its satellite deep vein. In this early experience, only patients with failed prior interventional attempts at establishing flow with no distal targets for an arterial bypass were selected...
July 17, 2018: Cardiovascular and Interventional Radiology
Pauline Vanderweckene, Laurent Weekers, Patrizio Lancellotti, François Jouret
Arteriovenous fistula (AVF) is regarded as the best vascular access for chronic haemodialysis (HD). Still, AVF inherently causes significant haemodynamic changes. Although the necessity for vascular access despite its putative cardiovascular complications favours AVF creation in patients under chronic HD, one may question whether sustaining a functional AVF after successful kidney transplantation extends the haemodynamic threat. Small prospective series suggest that AVF ligation causes rapid and sustained reduction in left ventricular hypertrophy...
June 2018: Clinical Kidney Journal
Silvi Shah, Anthony C Leonard, Karthikeyan Meganathan, Annette L Christianson, Charuhas V Thakar
BACKGROUND: Arteriovenous (AV) access confers survival benefits over central venous catheters (CVC) in hemodialysis patients. Although chronic kidney disease disproportionately affects women and racial minorities, disparities in the -utilization of hemodialysis access across Asians, Native Americans, Hispanics, blacks, and whites among males and females after accounting for pre-dialysis health are not well studied. METHODS: We evaluated 885,699 patients with end-stage renal disease who initiated hemodialysis between January 1, 2004 and December 31, 2014 using the US Renal Data System...
July 10, 2018: American Journal of Nephrology
Lucy D Miller, Nicholas J Hilliard, Simon J F Harper
Introduction: Superior mesenteric arteriovenous fistulae (SMAVF) are rare, usually secondary to trauma or iatrogenic injury and typically present sometime after the initial insult. Report: A 30 year old male underwent immediate laparotomy for abdominal gunshot injury. The small bowel mesentery contained a large haematoma and a palpable thrill. CT demonstrated a large SMAVF. At re-look laparotomy, small bowel ischaemia was noted and following this endovascular SMA stent graft insertion was performed, with excellent angiographic and clinical results...
2018: EJVES Short Reports
Sherwin Abdoli, Anuj Mahajan, Sukgu M Han, Vincent L Rowe, Steven G Katz, Christian J Ochoa
OBJECTIVE: Tunneled dialysis catheter (TDC) use has been associated with increased infectious complications and mortality in hemodialysis-dependent patients. Unfortunately, patients who undergo fistula revisions or creation of a new arteriovenous fistula frequently require a TDC during the postoperative period. Bovine carotid artery grafts (BCAGs) can be used as an early-access dialysis conduit to reduce TDC dependence. This study describes the performance of BCAGs that were cannulated early (<3 days) after implantation and associated clinical outcomes...
June 27, 2018: Journal of Vascular Surgery
Justin R Mascitelli, Sirin Gandhi, Ali Tayebi Meybodi, Michael T Lawton
OBJECTIVE Pathology in the region of the basilar quadrifurcation, anterolateral midbrain, medial tentorium, and interpeduncular and ambient cisterns may be accessed anteriorly via an orbitozygomatic (OZ) craniotomy. In Part 1 of this series, the authors explored the anatomy of the oculomotor-tentorial triangle (OTT). In Part 2, the versatility of the OTT as a surgical workspace for treating vascular pathology is demonstrated. METHODS Sixty patients with 61 vascular pathologies treated within or via the OTT from 1998 to 2017 by the senior author were retrospectively reviewed...
June 29, 2018: Journal of Neurosurgery
Alian Al-Balas, Timmy Lee, Carlton J Young, Michael Allon
OBJECTIVE: We have previously shown that arteriovenous fistulas (AVFs) are more expensive to create and to maintain than arteriovenous grafts (AVGs) in patients undergoing their first access. Because those for whom this first access fails may be a more disadvantaged group, we hypothesized that the cost of a second access may be different from that in the primary access group. With this in mind, we compared access costs in patients receiving a secondary AVF or AVG after their initial AVF failed to mature...
June 21, 2018: Journal of Vascular Surgery
Ömür Ballı, Volkan Çakır, Mehmet Coşkun, Rıdvan Pekçevik, Serkan Gür
PURPOSE: To investigate the feasibility and safety of the EXOSEAL vascular closure device (VCD) in achieving hemostasis in transpopliteal arterial interventions. MATERIALS AND METHODS: Between May 2014 and May 2016, 46 procedures involving transpopliteal arterial access in 28 patients (18 bilateral and 10 unilateral) were analyzed retrospectively. Popliteal arterial puncture was performed under ultrasonographic (US) and fluoroscopic guidance by using a micropuncture access set with a 21-gauge needle...
June 21, 2018: Journal of Vascular and Interventional Radiology: JVIR
Hanzhou Li, Serena Jen, Tarun Ramayya, H Gregory Bowers, Eran Rotem
No abstract text is available yet for this article.
May 2018: Quantitative Imaging in Medicine and Surgery
Charles D Fraser, Joshua C Grimm, Rui Han Liu, Russell N Wesson, Faris Azar, Robert J Beaulieu, Thomas Reifsnyder
INTRODUCTION: Renal transplant recipients often maintain their hemodialysis access in the event of future allograft failure. Patients may develop complications related to the unused dialysis access and it also limits vein availability for phlebotomy. Accordingly, a change in the current paradigm may be warranted. This study evaluates the indications for, and safety of, arteriovenous fistula (AVF) removal in patients following successful renal transplantation. METHODS: All patients that underwent AVF excision at a single institution from 2006-2016 were retrospectively reviewed...
June 7, 2018: Annals of Vascular Surgery
Michael P DeWane, Wassim H Fares, Cassius Iyad Ochoa Chaar
Aneurysms associated with arteriovenous fistulas (AVFs) are rare but can cause significant morbidity. They are often diagnosed after rupture, pain, or embolization. We describe a unique case of a 35-year-old woman with a large iliac vein aneurysm related to an acquired AVF incidentally discovered on ultrasound during pregnancy. She had a diagnosis of "idiopathic" pulmonary hypertension for several years. This report details the diagnosis and treatment with an arterial stent graft that was effective in decreasing the size of the venous aneurysm and reversing the systemic changes associated with the disease...
June 8, 2018: Annals of Vascular Surgery
Clément Marcelin, Stephen D'Souza, Yann Le Bras, Francois Petitpierre, Nicolas Grenier, Jos C van den Berg, Bella Huasen
PURPOSE: To prospectively analyze technical and clinical outcome of percutaneous thrombectomy aspiration using a vacuum-assisted thrombectomy catheter in acutely thrombosed dialysis arteriovenous fistula (AVF) and/or arteriovenous graft (AVG). MATERIALS AND METHODS: From June 2016 to April 2017, 35 patients (average age, 61.8 y; range, 33-81 y) presenting with acute thrombosis of dialysis AVF and/or AVG were prospectively evaluated for mechanical thrombectomy using the Indigo System...
July 2018: Journal of Vascular and Interventional Radiology: JVIR
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