2,405 results match your criteria Renal Arteriovenous Malformation

Congenital renal arteriovenous malformation with cirsoid and cavernosal-type characteristics: a case report.

J Int Med Res 2021 May;49(5):3000605211016381

Department of Urology, Affiliated Hangzhou First People's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.

Renal arteriovenous malformations (AVMs) are infrequent vascular morphological anomalies. About 20% of AVMs are congenital renal AVMs (CRAVMs). A 53-year-old female patient presented with a 5-day history of gross hematuria and right flank pain. Read More

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Wide-ranging clinical spectrum of paradoxical embolism.

Oscar Jolobe

Postgrad Med J 2021 May 18. Epub 2021 May 18.

Manchester Medical Society, Manchester, UK

The purpose of this review is to raise the index of suspicion for paradoxical embolism among generalists. The review is based solely on anecdotal reports compiled from EMBASE, MEDLINE, Googlescholar and Pubmed. Search terms were 'paradoxical embolism', 'pulmonary embolism' and 'pulmonary arteriovenous malformations'. Read More

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Usefulness of dynamic fluorodeoxyglucose positron emission tomography/computed tomography in diagnosing pulmonary arteriovenous malformation mimicking a lung tumour.

Interact Cardiovasc Thorac Surg 2021 May 5. Epub 2021 May 5.

Department of Chest Disease, Faculty of Medicine, Tokat Gaziosmanpasa University, Tokat, Turkey.

A 61-year-old male patient with known kidney dysfunction who underwent a non-contrast thorax CT and was then referred to our department for metabolic assessment of solitary pulmonary nodule (SPN). The patient underwent dynamic FDG PET/CT to differentiate benign from malignant SPN. This case illustrates the usefulness of dynamic FDG PET/CT imaging when assessing SPN especially in patients with suspicion for pulmonary arterio-venous malformation accompanying renal failure or contrast allergy. Read More

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Congenital renal arteriovenous malformation: a rare cause of visible haematuria.

BMJ Case Rep 2021 Apr 23;14(4). Epub 2021 Apr 23.

Department of Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

We report a case of renal arteriovenous malformation (AVM) and describe its angioarchitecture and endovascular management. A 28-year-old male patient presented with visible painless haematuria. CT of the abdomen showed a right renal AVM. Read More

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Safe Needling of Arteriovenous Fistulae in Patients on Hemodialysis: Literature Review and a New Approach.

Nephrol Nurs J 2021 Mar-Apr;48(2):169-176

Professor and Dean, School of Sociology and Public Policy, University Institute of Lisbon, Center for Research and Studies in Sociology, Lisboa, Portugal.

Although buttonhole cannulation has some benefits compared to rope-ladder cannulation, the increase of infection rates represents a major obstacle to patient safety, and its use is questionable in routine clinic practice. On the other hand, rope-ladder cannulation is difficult to implement even with a prescribed protocol, leading the cannulator in daily practice to a possible use of the area technique. This article provides a reflection on the impact of cannulation technique on the safety of patients on regular hemodialysis treatment and describes a new approach for arteriovenous fistula cannulation, the Multiple Single Cannulation Technique (MuST). Read More

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Association between digoxin use and gastrointestinal bleeding in contemporary continuous flow left ventricular assist device support.

J Heart Lung Transplant 2021 Mar 4. Epub 2021 Mar 4.

Department of Medicine, Division of Cardiology, University of Minnesota, Minneapolis, Minnesota.

Background: Assess the association between digoxin use and gastrointestinal bleeding (GIB) in a multicenter continuous flow left ventricular assist device (LVAD) cohort.

Methods: Patients implanted with continuous flow LVADs with data on GIB and digoxin use from two centers were included in the analysis (n = 649). GIB events were captured up to 2 years of follow-up. Read More

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Factors associated with dysfunction of autogenous arteriovenous fistula in patients with maintenance hemodialysis: a retrospective study.

Ann Palliat Med 2021 Apr 23;10(4):4047-4054. Epub 2021 Mar 23.

Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.

Background: Patients in maintenance hemodialysis (MHD) need a patent vascular access for optimal treatment. Autologous arteriovenous fistula (AVF) is the optimal vascular access for patients with MHD. However, AVF dysfunction may limit its use. Read More

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Endovascular Interventional Radiology of the Urogenital Tract.

Medicina (Kaunas) 2021 Mar 17;57(3). Epub 2021 Mar 17.

Department of Radiology, University of Trieste, ASUGI, Ospedale di Cattinara, 34149 Trieste, Italy.

Interventional radiology of the male urogenital system includes percutaneous and endovascular procedures, and these last consist mostly of transcatheter arterial embolizations. At the kidney level, arterial embolizations are performed mainly for palliative treatment of parenchymal tumors, for renal traumas and, less frequently, for arteriovenous fistulas and renal aneurysms and pseudoaneurysms. These latter may often require emergency intervention as they can cause renal or peri-renal hematomas or significant hematuria. Read More

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[Iatrogenic carotid-jugular arterio-venous fistula: a rare complication associated with jugular venous catheterization (a case report)].

Pan Afr Med J 2020 24;37:379. Epub 2020 Dec 24.

Université Mohammed V de Rabat, Rabat, Maroc.

Catheterization of the internal jugular vein is widely performed by both nephrologists and surgeons. It has become a routine procedure, but can be associated with serious complications. Carotid-jugular arterio-venous fistula (CJAVF) is a rare but potentially fatal complication. Read More

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Cardiac failure and pulmonary hypertension secondary to renal arteriovenous malformation: a case report.

J Med Case Rep 2021 Mar 31;15(1):177. Epub 2021 Mar 31.

Section of Cardiology, Rady College of Medicine, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada.

Background: Heart failure is usually associated with a low-cardiac-output state; however, a minority of these patients are characterized by a high-output cardiac state, described as a cardiac index of > 4 L/minute/m. Usually such circulation is associated with low systemic vascular resistance or arteriovenous malformation (AVM), resulting in depressurized circulation and a high-output cardiac state. Treating physicians should be cognizant of such pathology when investigating patients with heart failure. Read More

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Drug-Coated Balloons for Dysfunctional Dialysis Arteriovenous Fistulas.

David Packer

N Engl J Med 2021 03;384(12):1173

New York University School of Medicine, New York, NY

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Drug-Coated Balloons for Dysfunctional Dialysis Arteriovenous Fistulas.

N Engl J Med 2021 03;384(12):1172-1173

National Hospital Organization Yokohama Medical Center, Kanagawa, Japan.

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Drug-Coated Balloons for Dysfunctional Dialysis Arteriovenous Fistulas.

Jan Swinnen

N Engl J Med 2021 03;384(12):1172

Sydney University, Sydney, NSW, Australia

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Endovascular arteriovenous fistulas- are they the answer we haven't been looking for?

Expert Rev Med Devices 2021 Mar 26;18(3):273-280. Epub 2021 Mar 26.

Department of Renal Transplant and Vascular Access Surgery, Royal Free Hospital, London, UK.

Introduction: Surgically created arteriovenous fistulas are the accepted gold standard for the establishment of hemodialysis access in patients requiring dialysis. However, primary and maturation failures may limit their usage. Recent advances in endovascular technology have resulted in the creation of devices for endovascular arteriovenous fistula formation. Read More

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[Ultrasound-guided percutaneous transluminal angioplasty in the treatment of arteriovenous fistula immaturation: day surgery mode and clinical efficacy].

Zhonghua Yi Xue Za Zhi 2021 Feb;101(6):416-420

Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China.

To summarize the clinical effect of ultrasound-guided percutaneous transluminal angioplasty (PTA) in the treatment of arteriovenous fistula (AVF) immaturation under day surgery mode. The clinical data was retrospective analyzed of patients with AVF immaturation who were treated by ultrasound-guided PTA under day surgery mode from November 2016 to June 2019 in Renji Hospital. The basic information, lesion location, puncture approach, number and diameter of balloon used were counted. Read More

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February 2021

Hypoxia and hypoxia-inducible factors promote the development of neointimal hyperplasia in arteriovenous fistula.

J Physiol 2021 04 19;599(8):2299-2321. Epub 2021 Mar 19.

Université Côte d'Azur, Centre de Méditerranéen de Médecine Moléculaire (C3M), INSERM U1065, Nice, France.

Key Points: Patients with end-stage renal failure need arteriovenous fistulas (AVF) to undergo dialysis. However, AVFs present a high rate of failure as a result of excessive venous thickness. Excessive venous thickness may be a consequence of surgical dissection and change in oxygen concentration within the venous wall. Read More

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New Evidence to Support the Use of Drug Coated Balloons in the Treatment of Dysfunctional Vascular Access.

Eur J Vasc Endovasc Surg 2021 04 16;61(4):540-541. Epub 2021 Feb 16.

Interventional Radiology, Patras University Hospital, Greece.

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Functional Outcomes of Arteriovenous Fistulas Created by Nephrologist.

Kathmandu Univ Med J (KUMJ) 2020 Apr-Jun;18(70):155-159

Glickman and Kidney Institute, Cleveland Clinic Lerner College of Medicine and Cleveland Clinic Foundation, Cleveland, OH, USA.

Background Nephrologists worldwide, after undergoing surgical training, have reported creating arteriovenous fistulas (AVFs). Objective To demonstrate the functional outcome of arteriovenous fistulas created by a trained Nepalese nephrologist. Method This was a cross sectional study. Read More

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February 2021

Renal Sympathetic Denervation Attenuates Congestive Heart Failure in Angiotensin II-Dependent Hypertension: Studies with Ren-2 Transgenic Hypertensive Rats with Aortocaval Fistula.

Kidney Blood Press Res 2021 2;46(1):95-113. Epub 2021 Feb 2.

Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czechia.

Objective: We examined if renal denervation (RDN) attenuates the progression of aortocaval fistula (ACF)-induced heart failure or improves renal hemodynamics in Ren-2 transgenic rats (TGR), a model of angiotensin II (ANG II)-dependent hypertension.

Methods: Bilateral RDN was performed 1 week after creation of ACF. The animals studied were ACF TGR and sham-operated controls, and both groups were subjected to RDN or sham denervation. Read More

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Endovascular management of a patient with massive renal arteriovenous fistula: challenges and tricks.

BMJ Case Rep 2021 Feb 1;14(2). Epub 2021 Feb 1.

Department of Urology, Christian Medical College and Hospital, Vellore, India.

We describe the endovascular management of a patient with a massive renal arteriovenous fistula and a huge venous aneurysmal sac, who presented with features of cardiac failure and fever. The challenges faced and the outcomes are discussed with relevant literature review. Read More

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February 2021

50 Years Ago in TheJournalofPediatrics: Arteriovenous Fistulas after Renal Biopsies: Have We Silenced the Bruit?

J Pediatr 2021 02;229:40

Pediatric Nephrology, The Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York.

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February 2021

Results of the endovascular treatment system for occluded native arteriovenous fistula.

ANZ J Surg 2020 07 20;90(7-8):1369-1375. Epub 2020 Jul 20.

Department of Vascular Surgery, The University of Sydney, Westmead Hospital, Sydney, New South Wales, Australia.

Background: Arteriovenous fistula is the definitive vascular access for patients on long-term haemodialysis. The aim of this study is to present the techniques and results of the Endovascular Treatment System that we have developed for managing the occluded native arteriovenous fistula.

Methods: The current study is a retrospective chart review on all patients who presented with an occluded native arteriovenous fistula and underwent attempted recanalization between 1 January 2005 and 31 December 2014. Read More

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Any modality of renal replacement therapy can be a treatment option for Joubert syndrome.

Sci Rep 2021 Jan 11;11(1):462. Epub 2021 Jan 11.

Department of Pediatric Nephrology, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.

Joubert syndrome (JS) is an inherited ciliopathy characterized by a distinctive cerebellar and brain stem malformation which is known as the "molar tooth sign" on axial brain images, hypotonia, and developmental delay. Approximately 25-30% of patients with JS have kidney disease and many of them progress to end-stage kidney disease (ESKD). However, there are few reports on the outcomes of renal replacement therapy (RRT) in patients with JS and ESKD. Read More

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January 2021

Comparing N-hexyl cyanoacrylate (Magic Glue) and N-butyl cyanoacrylate (NBCA) for neurovascular embolization using the pressure cooker technique: An experimental study in swine.

J Neuroradiol 2021 Jan 5. Epub 2021 Jan 5.

Division of Interventional Neuroradiology, Department of Radiology, University Hospital of Brest, France; Western Brittany Thrombosis Study Group - GETBO EA3878, Brest, France. Electronic address:

Background: The pressure cooker (PC) technique uses a second microcatheter to produce a proximal occlusion to prevent the reflux of liquid embolic agent (LEA) injected through a more distal microcatheter, and can be used to treat arteriovenous malformations and dural arteriovenous fistulae. The liquid embolic Magic Glue (MG) (N-hexyl cyanoacrylate (NHCA)) has been introduced as an alternative to N-butyl cyanoacrylate (NBCA). Our goals were to compare the extent of embolization of rete mirabile with or without the PC technique using NBCA or MG, and to compare the proximal occlusions obtained with MG or NBCA while using the PC technique in a renal arterial model. Read More

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January 2021

[Congenital renal arteriovenous fistula: a rare cause of acute abdomen and a review of its literature].

Rev Fac Cien Med Univ Nac Cordoba 2020 12 19;77(4):356-359. Epub 2020 Dec 19.

Clínica Universitaria Reina Fabiola.

Introduction: Congenital renal arteriovenous fistula is an abnormal connection between the arterial and venous system. Since the first case described in 1928 by Varela et al, no more than 200 cases have been published.

Material And Methods: A 45-year-old woman consulted for severe abdominal and low-back pain associated with arterial hypertension. Read More

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December 2020

[Endovascular arteriovenous fistulas: percutaneous creation of vascular access for hemodialysis].

Ned Tijdschr Geneeskd 2020 11 5;164. Epub 2020 Nov 5.

Maastricht UMC+, Maastricht.Afd. Interne Geneeskunde.

A novel endovascular technique allows percutaneous creation of arteriovenous fistulas for hemodialysis. The proximal radial artery is cannulated through the perforating vein in the cubital fossa using ultrasound guidance. A fused anastomosis between these blood vessels is created using heat and pressure. Read More

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November 2020

Periadventitial Delivery of Simvastatin-Loaded Microparticles Attenuate Venous Neointimal Hyperplasia Associated With Arteriovenous Fistula.

J Am Heart Assoc 2020 12 5;9(24):e018418. Epub 2020 Dec 5.

Vascular and Interventional Radiology Translational Laboratory Department of Radiology Mayo Clinic Rochester MN.

Background Venous neointimal hyperplasia and venous stenosis (VS) formation can result in a decrease in arteriovenous fistula (AVF) patency in patients with end-stage renal disease. There are limited therapies that prevent VNH/VS. Systemic delivery of simvastatin has been shown to reduce VNH/VS but local delivery may help decrease the side effects associated with statin use. Read More

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December 2020