2,629 results match your criteria Renal Arteriovenous Malformation


Our Experience in Using the Endovascular Therapy in the Management of Hemorrhages in Obstetrics and Gynecology.

Diagnostics (Basel) 2022 Jun 10;12(6). Epub 2022 Jun 10.

Department of Obstetrics and Gynaecology, University Emergency Hospital Bucharest, 050098 Bucharest, Romania.

(1) Background: A quarter of maternal deaths are caused by post-partum hemorrhage; hence obstetric bleeding is a significant cause of morbidity and mortality among women. Pelvic artery embolization (PAE) represents a minimally invasive interventional procedure which plays an important role in conservative management of significant bleeding in Obstetrics and Gynecology. The aim of this study was to evaluate the effect and the complications of PAE in patients with significant vaginal bleeding with different obstetrical and gynecological pathologies. Read More

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A randomised control trial protocol of MuST for vascular access cannulation in hemodialysis patients (MuST Study): contributions for a safe nursing intervention.

BMC Nephrol 2022 Jun 21;23(1):218. Epub 2022 Jun 21.

Lisbon School of Nursing, University of Lisbon, Lisbon, Portugal.

Background: The vascular access preservation and the maintenance of a complication-free fistula remains an Achilles' heel of hemodialysis in chronic kidney patients due to its substantial contribution to the morbidity and mortality. Systematic studies in the area of examining cannulation practices, achieving complication-free cannulation, and strategies to improve fistula survival are needed. For this reason, we consider it essential to create and investigate new methodologies for approaching fistula in patients on regular HD. Read More

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Systemic Profile of Cytokines in Arteriovenous Fistula Patients and Their Associations with Maturation Failure.

Kidney360 2022 Apr 13;3(4):677-686. Epub 2022 Jan 13.

DeWitt Daughtry Family Department of Surgery, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida.

Background: Systemic cytokines are elevated in patients with chronic kidney disease (CKD) and on hemodialysis compared with the general population. However, whether cytokine levels interfere with vascular remodeling, increasing the risk of arteriovenous fistula (AVF) failure, remains unknown.

Methods: This is a case-control study of 64 patients who underwent surgery for AVF creation (32 with AVF maturation failure and 32 matching controls with successful maturation). Read More

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Endovascular Treatment of a Giant Renal Artery Aneurysm with High-Flow Renal Arteriovenous Malformation.

Vasc Specialist Int 2022 Jun 17;38:13. Epub 2022 Jun 17.

Division of Vascular Surgery, 2nd Department of Surgery, Faculty of Medicine, "G. Gennimatas" Hospital, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Renal artery aneurysms (RAAs) are rare lesions with a prevalence of less than 1% in the general population. Renal arteriovenous malformations (AVMs) are rare lesions with an estimated incidence of less than 0.04%. Read More

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Contact Laxative Use and the Risk of Arteriovenous Fistula Maturation Failure in Patients Undergoing Hemodialysis: A Multi-Center Cohort Study.

Int J Environ Res Public Health 2022 Jun 3;19(11). Epub 2022 Jun 3.

Division of Nephrology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan.

Laxatives are commonly prescribed for constipation management; however, they are recognized as an independent factor associated with cardiovascular diseases. Arteriovenous fistula (AVF) is the closest to the ideal model of hemodialysis (HD) vascular access and part of the cardiovascular system. Our study aims to explore the association of contact laxative use with AVF maturation outcomes in patients undergoing HD. Read More

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Predictors of recurrent arteriovenous fistula stenosis in Saudi patients undergoing hemodialysis.

Saudi Med J 2022 Jun;43(6):592-598

From the Department of International Radiology (Alturkistani), King Khalid University Hospital; and from the College of medicine (Alturkistani, Alsergani, Alasqah, Alsaif, Shukr), King Saud University, Riyadh, Kingdom of Saudi Arabia.

Objectives: To identify predictors of recurrent arteriovenous fistula (AVF) stenosis. It also seeks to calculate the average primary patency duration in Saudi patients undergoing hemodialysis.

Methods: A retrospective case-control study was conducted at a tertiary care hospital in Riyadh. Read More

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Reduction of arteriovenous access blood flow in kidney transplant patients.

Rozhl Chir 2022 ;101(5):227-231

Introduction: Cardiovascular disease is the most frequent cause of death in kidney transplant patients. High-flow arteriovenous fistula (AVF) increases cardiac output and may contribute to hyperkinetic heart failure. AVF follow-up is not implemented in kidney transplant patients. Read More

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Post-traumatic Renal Arteriovenous Malformation Discovered after 2 Years of Blunt Trauma: Diagnosis and Management.

J Coll Physicians Surg Pak 2022 Apr;32(4):S82-S84

Department of Urology, Shifa International Hospital, Islamabad, Pakistan.

Blunt trauma to the kidney is usually minor and self-limiting. In some cases, the patient may present with intractable hematuria or persistent flank pain and discomfort, which necessitates aggressive management. It is very rare and unusual to find a renal arterio-venous malformation following blunt trauma. Read More

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Arteriovenous fistula after robotic partial nephrectomy: Case report and narrative review.

Radiol Case Rep 2022 Jul 17;17(7):2550-2553. Epub 2022 May 17.

Department of Urology, Sapienza University, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161, Rome, Italy.

Arteriovenous fistulas (AVF) of the kidney are uncommon. They may be acquired, idiopathic or arise of congenital arteriovenous malformation. Acquired renal AVF are mostly iatrogenic due to the increasing number of mini-invasive nephron surgery. Read More

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Recanalization of thrombosed aneurysmal hemodialysis arterovenous fistulas using a hybrid technique based on data from a single center.

BMC Nephrol 2022 May 14;23(1):185. Epub 2022 May 14.

Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, P.R. China.

Objective: To explore the technical specifications and clinical outcomes of thrombosed aneurysmal haemodialysis arteriovenous fistula (AVF) treated with ultrasound-guided percutaneous transluminal angioplasty combined with minimal aneurysmotomy.

Methods: This case series study included 11 patients who had thrombosed aneurysmal AVF and underwent salvage procedures over a 13-month period. All procedures were performed under duplex guidance. Read More

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Causes of hospitalization in patients on maintenance hemodialysis with arteriovenous fistula in a tertiary care hospital in West Bengal, India.

Saudi J Kidney Dis Transpl 2021 Sep-Oct;32(5):1418-1423

Department of Physiology, Saheed Laxman Nayak Medical College and Hospital, Koraput, Odisha, India.

Patients with renal failure and on maintenance hemodialysis (HD) have a higher propensity toward cardiovascular and infectious diseases. The aim of this study was to find the causes for hospital admission in patients suffering from kidney failure and on maintenance HD. This cross-sectional, observational study was conducted in a tertiary care hospital in West Bengal, India, from January to December, 2015. Read More

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Idiopathic renal arteriovenous malformation: A case report.

Asian J Surg 2022 May 5. Epub 2022 May 5.

Department of Surgery, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand. Electronic address:

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Embolization of Renal Arteriovenous Malformations Using Tandem Balloon Catheters.

J Vasc Interv Radiol 2022 Apr 29. Epub 2022 Apr 29.

Department of Radiology, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, 849-8501, Japan.

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[Vascular ultrasonography in the preparation and surveillance of arteriovenous fistula: a monocentric experience].

G Ital Nefrol 2022 Apr 21;39(2). Epub 2022 Apr 21.

Struttura Operativa Complessa Nefrologia e Dialisi Azienda Sanitaria Locale del Verbano Cusio Ossola, Verbania, Italy.

Creating an arteriovenous fistula (AVF) is complicated by the gradual increase in the average age of patients initiating chronic haemodialysis treatment and by the greater prevalence of pathologies that impact the cardiovascular system. In the past, the choice of which vessels to use for the creation of the AVF was essentially based on the physical examination of the upper limbs. Current international guidelines suggest that a colour doppler ultrasound (DUS) should be performed to complete the physical examination. Read More

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Outcome of Neonates Presenting With Severe Cardiac Failure due to Cerebral Arteriovenous Fistula.

Pediatr Neurol 2022 Jun 14;131:25-29. Epub 2022 Apr 14.

Department of Pediatrics and Benioff Children's Hospital, University of California San Francisco, San Francisco, California; Department of Neurology and Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California. Electronic address:

Background: Congenital cerebral arteriovenous fistulas (AVFs), including vein of Galen malformations, presenting in infancy carry variable mortality and morbidity. This study aimed to describe the outcome of neonates with cerebral AVFs who present with refractory cardiac failure.

Methods: Retrospective chart review of neonates with refractory cardiac failure due to cerebral AVFs presenting before 28 days of age in a single-center neuro-intensive care nursery over a 12-year period (2008-2020) was conducted. Read More

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Creating Radio-cephalic Arteriovenous Fistula in the Forearm with a Modified No-Touch Technique.

J Vis Exp 2022 04 1(182). Epub 2022 Apr 1.

Department of Nephrology, The Affiliated Suzhou Science & Technology Town Hospital, Nanjing Medical University;

Autologous arteriovenous fistula (AVF) is the primary and best option to obtain vascular access for hemodialysis treatment; other options are arteriovenous graft (AVG) and central venous catheterization (CVC). The implementation of radio-cephalic autologous arteriovenous fistula (RC-AVF) in the forearm was preferred among patients with superior vascular conditions. However, there is a high rate of early fistula failure. Read More

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The Sisyphean Task of Getting the Arteriovenous Fistula to Mature.

Kidney360 2021 12 30;2(12):1873-1875. Epub 2021 Dec 30.

Department of Kidney Medicine, Cleveland Clinic, Cleveland, Ohio.

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December 2021

Impact of Previous Tunneled Vascular Catheters and their Location on Upper Limb Arteriovenous Fistula Function.

Kidney360 2021 12 7;2(12):1953-1959. Epub 2021 Oct 7.

Department of Renal Medicine, Liverpool Hospital, Liverpool, Australia.

Background: Long-term arteriovenous fistula (AVF) survival has been shown to be adversely affected by the presence of previous tunneled vascular catheters (TVC). We analyzed the effect of previous TVCs and their location (ipsilateral versus contralateral) on the successful function of upper-limb AVFs in the first 12 months after creation.

Methods: We retrospectively reviewed clinical data on patients' first upper-limb AVFs, created between January 2013 and December 2017. Read More

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December 2021

Rationale and Trial Design of MesEnchymal Stem Cell Trial in Preventing Venous Stenosis of Hemodialysis Vascular Access Arteriovenous Fistula (MEST AVF Trial).

Kidney360 2021 12 28;2(12):1945-1952. Epub 2021 Sep 28.

Department of Radiology, Mayo Clinic, Rochester, Minnesota.

Background: Hemodialysis arteriovenous fistulas (AVFs) are the preferred vascular access for patients on hemodialysis. In the Hemodialysis Fistula Maturation Study, 44% of the patients achieved unassisted maturation of their fistula without needing an intervention. Venous neointimal hyperplasia (VNH) and subsequent venous stenosis are responsible for lack of maturation. Read More

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December 2021

Quantification and Visualization of Reliable Hemodynamics Evaluation Based on Non-Contact Arteriovenous Fistula Measurement.

Sensors (Basel) 2022 Apr 2;22(7). Epub 2022 Apr 2.

Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan.

The condition of arteriovenous fistula (AVF) blood flow is typically checked by using auscultation; however, auscultation should require a qualitative judgment dependent on the skills of doctors, and further attention to contact infection is required. For these reasons, this study developed a non-contact and non-invasive medical device to measure the pulse wave of AVFs by applying optical imaging technology. As a first step toward realization of the quantification judgment based on non-contact AVF measurement, we experimentally validated the developed system, whereby the hemodynamics of 168 subjects were visually and quantitatively evaluated based on clinical tests. Read More

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Effect of Artery Diameter and Velocity and Vein Diameter on Upper Limb Arteriovenous Fistula Outcomes.

Authors:
Morwan Bahi

ScientificWorldJournal 2022 26;2022:2158013. Epub 2022 Mar 26.

Department of Vascular Surgery, Wellington Hospital, Wellington, New Zealand.

Objective: Haemodialysis is an important tool for end-stage renal disease (ESRD) patients to correct electrolyte disturbance and improve life quality. This requires a method of long-term vascular access. For many ESRD patients, arteriovenous fistula (AVF) formation is the optimal method of access. Read More

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Feasibility of Creation of an Endovascular Arteriovenous Fistula in Patients Undergoing Preoperative Vascular Mapping.

Kidney360 2022 02 20;3(2):287-292. Epub 2021 Oct 20.

Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama.

Background: The first endovascular arteriovenous fistula (endoAVF) device (WavelinQ), a novel percutaneous technique of AVF creation, was approved by the Food and Drug Administration in 2018 and has been placed in a small number of United States patients on hemodialysis. It is unknown how often patients with advanced CKD have vascular anatomy suitable for WavelinQ creation. The goal of this study was to determine the proportion of patients with vascular anatomy suitable for WavelinQ creation and to assess patient characteristics associated with such suitability. Read More

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February 2022

Vascular Suitability for an Endovascular Arteriovenous Fistula: Getting Beyond the Velvet Rope.

Authors:
Haimanot Wasse

Kidney360 2022 02 24;3(2):201-203. Epub 2022 Feb 24.

Rush University Medical Center, Chicago, Illinois.

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February 2022

Arteriovenous Fistula Nonmaturation: What's the Immune System Got to Do with It?

Kidney360 2021 11 14;2(11):1743-1751. Epub 2021 Sep 14.

Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama.

Background: Arteriovenous fistula (AVF) nonmaturation is a persistent problem, particularly among female and Black patients. Increasingly, the immune system has been recognized as an important contributor to vascular disease, but few studies have examined immune factors relative to AVF maturation outcomes. This study evaluated the association of serum panel reactive antibodies (PRA), a measure of immune system reactivity assessed in patients undergoing kidney transplant evaluation, with AVF nonmaturation. Read More

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November 2021

New Frontiers in Vascular Access Practice: From Standardized to Patient-tailored Care and Shared Decision Making.

Kidney360 2021 08 15;2(8):1380-1389. Epub 2021 Jun 15.

Department of Surgery, University of California Los Angeles, Los Angeles, California.

Vascular access planning is critical in the management of patients with advanced kidney disease who elect for hemodialysis for RRT. Policies put in place more than two decades ago attempted to standardize vascular access care around the model of optimal, namely arteriovenous fistula, and least preferred, namely central venous catheter, type of access. This homogenized approach to vascular access care emerged ineffective in the increasingly heterogeneous and complex dialysis population. Read More

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Long-Term Impact of Arteriovenous Fistula Ligation on Cardiac Structure and Function in Kidney Transplant Recipients: A 5-Year Follow-Up Observational Cohort Study.

Kidney360 2021 07 18;2(7):1141-1147. Epub 2021 May 18.

Central Northern Adelaide Renal and Transplantation Service, Adelaide, South Australia, Australia.

Background: The long-term effects of arteriovenous fistula (AVF) ligation on cardiovascular structure following kidney transplantation remain uncertain. A prospective randomized, controlled trial (RCT) examined the effect of AVF ligation at 6 months on cardiovascular magnetic resonance imaging (CMR)-derived parameters in 27 kidney transplant recipients compared with 27 controls. A mean decrease in left ventricular mass (LVM) of 22. Read More

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Ultrasound-guided nitinol stent implantation in treatment of early recurrent stenosis of arteriovenous fistula.

Zhejiang Da Xue Xue Bao Yi Xue Ban 2021 Dec;50(6):770-776

To investigate the feasibility, methods and efficacy of ultrasound-guided nitinol stent implantation for the treatment of early recurrent stenosis of arteriovenous fistula (AVF). Thirty patients with early recurrent stenosis after percutaneous transluminal angioplasty (PTA) who received ultrasound-guided nitinol stent implantation in Sir Run Run Shaw Hospital of Zhejiang University from April 2018 to July 2020 were followed up. The imaging features of the procedure and the interventional devices were observed under ultrasonography. Read More

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December 2021

Patency and Complications of Arterio-venous Fistula Created in Pre- and Post-dialysis Settings.

J Coll Physicians Surg Pak 2022 Apr;32(4):510-513

Department of Vascular Surgery, Shifa International Hospital, Shifa Tameer-e-Millat University, Islamabad, Pakistan.

Objectives: To determine the difference in patency and complication rates of arterio-venous fistula (AVF) constructed in pre-dialysis versus post-dialysis settings.

Study Design: Descriptive study.

Place And Duration Of Study: The Department of Vascular Surgery, Shifa International Hospital, Islamabad from January 2014 to August 2020. Read More

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Roles of PI3K/AKT/mTOR Axis in Arteriovenous Fistula.

Biomolecules 2022 02 23;12(3). Epub 2022 Feb 23.

Cellular Signalling Laboratory, Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy.

Renal failure is a worldwide disease with a continuously increasing prevalence and involving a rising need for long-term treatment, mainly by haemodialysis. Arteriovenous fistula (AVF) is the favourite type of vascular access for haemodialysis; however, the lasting success of this therapy depends on its maturation, which is directly influenced by many concomitant processes such as vein wall thickening or inflammation. Understanding the molecular mechanisms that drive AVF maturation and failure can highlight new or combinatorial drugs for more personalized therapy. Read More

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February 2022

The safety cutoff storage pressure for preventing upper urinary tract damage in neurogenic bladder from spinal cord pathology and risk factor analysis.

Neurourol Urodyn 2022 04 23;41(4):991-1001. Epub 2022 Mar 23.

Department of Surgery, Division of Urology, Thammasat University Hospital, Pathum Thani, Thailand.

Introduction: Low-compliance bladder or high bladder pressure undoubtedly leads to hydronephrosis and renal impairment. As four decades have elapsed since a previous study found a detrusor leak-point pressure (DLPP) >40 cm H O to result in hydronephrosis, we suspected the possibility of hydronephrosis or vesicoureteral reflux occurring at any point below the 40 cm H O DLPP reference. Therefore, this study aimed to determine the storage detrusor pressure value and risk factors related to upper urinary tract damage (UUTD). Read More

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