55,436 results match your criteria Arteriovenous Malformations


Clipping of Basilar Perforator Pure Arterial Malformation Aneurysm: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2018 Dec 14. Epub 2018 Dec 14.

University of Miami, Department of Neurosurgery, Miami, Florida.

Pure arterial malformations are rarely-encountered intracranial lesions, often mistaken for arteriovenous malformations. A minority of these lesions may harbor associated aneurysms. In a recent series of 12 patients with pure arterial malformations, 3 patients had associated aneurysms. Read More

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December 2018

Technique of Fractionated Transcatheter Arterial Embolization for Treating Large Arteriovenous Malformation in Brain Functional Area.

J Craniofac Surg 2018 Dec 13. Epub 2018 Dec 13.

Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing.

Objective: At present, large cranial function area arteriovenous malformation (fAVM) is mainly treated by craniotomy with a high risk of operation and high disability. In recent years, with the continuous improvement of the neural intervention technology, fractionated transcatheter arterial embolization (fTAE) may be used to treat the fAVM instead of surgical treatment. However, its effectiveness for treating fAVM has never been explored. Read More

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December 2018

Surgical management of proximal coronary arteriovenous fistulas using intraoperative fluorescence imaging.

J Card Surg 2018 Dec 12. Epub 2018 Dec 12.

Second Department of Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan.

We report the use of intraoperative fluorescence imaging to assist in the surgical management of proximal coronary arteriovenous fistulas in four patients. Read More

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December 2018

Comorbidity among HHT patients and their controls in a 20 years follow-up period.

Orphanet J Rare Dis 2018 Dec 14;13(1):223. Epub 2018 Dec 14.

Odense Patient data Explorative Network (OPEN), Odense University Hospital/Department of Clinical Research, University of Southern Denmark, Odense, Denmark.

Background: Hereditary Haemorrhagic Telangiectasia (HHT) is an autosomal dominant genetic disorder with a wide variety of clinical manifestations due to the presence of multiple arteriovenous malformations in various tissues and organs.

Objective: To study the need for hospital admittance in a group of HHT patients and matched controls during a 20 years follow-up period commencing in 1995.

Methods: All HHT patients in the County of Funen, Denmark, were included. Read More

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December 2018

Upper Gastrointestinal Bleed Embolization with Onyx: The "Tattoo Effect".

J Clin Imaging Sci 2018 15;8:46. Epub 2018 Nov 15.

Division of Gastroenterology and Hepatology, University of Kentucky, College of Medicine, Lexington, Kentucky, USA.

Endoscopic intervention is well validated for the control of upper gastrointestinal bleeding (UGIB). In cases of refractory bleeding, transarterial embolization is a safe and effective alternative. Ethylene vinyl alcohol (EVOH) commonly known as Onyx is an inherently black liquid embolic approved for use in cerebrovascular arteriovenous malformations and is increasingly used as an embolic agent in multiple peripheral and visceral territories. Read More

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November 2018

Repeated pulmonary embolism with cardiac arrest after uterine artery embolization for uterine arteriovenous malformation: A case report and literature review.

Taiwan J Obstet Gynecol 2018 Dec;57(6):890-893

Department of Obstetrics and Gynecology, National Research Center of Mother and Child Health, University Medical Center, Astana, 010000, Kazakhstan.

Objective: Uterine arteriovenous malformation (AVM) is an abnormal and nonfunctional communication between uterine arteries and veins, currently managed by uterine artery embolization (UAE). Pulmonary embolism (PE) is the most severe and life-threatening complication of this procedure.

Case Report: We report a case of 27 year-old woman with heavy vaginal bleeding and abdominal pain caused by AVM. Read More

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December 2018

The factors associated with hemorrhagic presentation in children with untreated brain arteriovenous malformation: a meta-analysis.

Authors:

J Neurosurg Pediatr 2018 Nov 1:1-12. Epub 2018 Nov 1.

OBJECTIVERupture of arteriovenous malformations (AVMs) would result in high mortality and prevalence of disability in pediatric patients. Decisions regarding the treatment of AVMs need to weigh the risk of rupture over the course of their natural history against the possibility of creating a lesion during treatment. Multiple factors have been proposed to predict hemorrhagic presentation of pediatric patients with AVMs. Read More

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November 2018

Proceedings of the 2018 next-generation Gamma Knife research meeting.

Authors:

J Neurosurg 2018 Dec;129(Suppl1):5-9

In order to determine what areas of research are a clinical priority, a small group of young Gamma Knife investigators was invited to attend a workshop discussion at the 19th International Leksell Gamma Knife Society Meeting. Two areas of interest and the need for future radiosurgical research involving multiple institutions were identified by the young investigators working group: 1) the development of additional imaging sequences to guide the understanding, treatment, and outcome tracking of diseases such as tremor, radiation necrosis, and AVM; and 2) trials to clarify the role of hypofractionation versus single-fraction radiosurgery in the treatment of large lesions such as brain metastases, postoperative cavities, and meningiomas. Read More

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December 2018

A novel method to determine the natural course of unruptured brain arteriovenous malformations without the need for follow-up information.

Authors:

J Neurosurg 2018 Dec;129(Suppl1):10-16

OBJECTIVEThere is a strong clinical need to accurately determine the average annual hemorrhage risk in unruptured brain arteriovenous malformations (AVMs). This need motivated the present initiative to use data from a uniquely large patient population and design a novel methodology to achieve a risk determination with unprecedented accuracy. The authors also aimed to determine the impact of sex, pregnancy, AVM volume, and location on the risk for AVM rupture. Read More

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December 2018
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Integration of rotational angiography enables better dose planning in Gamma Knife radiosurgery for brain arteriovenous malformations.

Authors:

J Neurosurg 2018 Dec;129(Suppl1):17-25

OBJECTIVEIn Gamma Knife radiosurgery (GKS) for arteriovenous malformations (AVMs), CT angiography (CTA), MRI, and digital subtraction angiography (DSA) are generally used to define the nidus. Although the AVM angioarchitecture can be visualized with superior resolution using rotational angiography (RA), the efficacy of integrating RA into the GKS treatment planning process has not been elucidated.METHODSUsing data collected from 25 consecutive patients with AVMs who were treated with GKS at the authors' institution, two neurosurgeons independently created treatment plans for each patient before and after RA integration. Read More

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December 2018

High prevalence of KRAS/BRAF somatic mutations in brain and spinal cord arteriovenous malformations.

Brain 2018 Dec 12. Epub 2018 Dec 12.

State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Brain and spinal arteriovenous malformations are congenital lesions causing intracranial haemorrhage or permanent disability especially in young people. We investigated whether the vast majority or all brain and spinal arteriovenous malformations are associated with detectable tumour-related somatic mutations. In a cohort of 31 patients (21 with brain and 10 with spinal arteriovenous malformations), tissue and paired blood samples were analysed with ultradeep next generation sequencing of a panel of 422 common tumour genes to identify the somatic mutations. Read More

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December 2018

Gender Disparities in Vascular Access Surgical Outcomes in Elderly Hemodialysis Patients.

Am J Nephrol 2018 Dec 13;49(1):11-19. Epub 2018 Dec 13.

Division of Nephrology, Department of Medicine, University of Alabama at, Birmingham, Alabama, USA.

Background: Despite national vascular access guidelines promoting the use of arteriovenous fistulas (AVF) over arteriovenous grafts (AVGs) for dialysis, AVF use is substantially lower in females. We assessed clinically relevant AVF and AVG surgical outcomes in elderly male and female patients initiating hemodialysis with a central venous catheter (CVC).

Methods: Using the United States Renal Data System standard analytic files linked with Medicare claims, we assessed incident hemodialysis patients in the United States, 9,458 elderly patients (≥67 years; 4,927 males and 4,531 females) initiating hemodialysis from July 2010 to June 2011 with a catheter and had an AVF or AVG placed within 6 months. Read More

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December 2018

Rationale and design of the PHYSICALFAV trial: a randomized controlled trial to evaluate the effect of preoperative isometric exercise on vascular calibre and maturation of autologous arteriovenous fistulas.

Clin Kidney J 2018 Dec 22;11(6):841-845. Epub 2018 Jun 22.

Servicio de Nefrología, Hospital General Universitario Gregorio Marañón, Madrid, Spain.

Background: A good vascular access (VA) is vital for haemodialysis (HD) patients. HD with an autologous arteriovenous fistula (AVF) is associated with higher survival, lower health care costs and fewer complications. Although a distal forearm AVF is the best option, not all patients are good candidates for this approach and the primary failure rate ranges from 20% to 50%. Read More

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December 2018

Vis-à-vis: a focus on genetic features of cerebral cavernous malformations and brain arteriovenous malformations pathogenesis.

Neurol Sci 2018 Dec 6. Epub 2018 Dec 6.

Department of Biomedical and Dental Science and Morphological and Functional Images, University of Messina, Consolare Valeria street 1, 98125, Messina, Italy.

Cerebrovascular malformations include a wide range of blood vessel disorders affecting brain vasculature. Neuroimaging differential diagnosis can result unspecific due to similar phenotypes of lesions and their deep localization. Next-generation sequencing (NGS) platforms simultaneously analyze several hundreds of genes and can be applied for molecular distinction of different phenotypes within the same disorder's macro-area. Read More

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December 2018

Phase II Trial of Transarterial Embolization Using an n-Butyl-2-Cyanoacrylate/Lipiodol Mixture (JIVROSG-0802).

Cardiovasc Intervent Radiol 2018 Dec 6. Epub 2018 Dec 6.

Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, 1-1, Kanokoden, Chikusa-ku, Nagoya, Aichi, 464-8681, Japan.

Purpose: To evaluate the embolic effect and the safety of transarterial embolization (TAE) using n-butyl-2-cyanoacrylate (NBCA) in a prospective multicenter trial.

Materials And Methods: This study was an open-label, multicenter, phase II trial. The inclusion criteria were (1) active bleeding or pseudoaneurysm, (2) true aneurysm, (3) arteriovenous malformation (except cerebral lesion), (4) arteriovenous fistula, or (5) need for arterial distribution before transarterial treatment. Read More

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December 2018

Osseous versus Nonosseous Spinal Epidural Arteriovenous Fistulas: Experiences of 13 Patients.

AJNR Am J Neuroradiol 2018 Dec 6. Epub 2018 Dec 6.

From the Departments of Radiology and Research Institute of Radiology (Y.S., D.W.L., J.J.S., J.H.S., D.C.S.), University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea

Background And Purpose: Spinal epidural arteriovenous fistulas are rare vascular malformations. We present 13 patients with spinal epidural arteriovenous fistulas, noting the various presenting symptom patterns, imaging findings related to bone involvement, and outcomes.

Materials And Methods: Among 111 patients with spinal vascular malformations in the institutional data base from 1993 to 2017, thirteen patients (11. Read More

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December 2018
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[New insight of craniofacial and oral findings of the RASopathies].

Zhonghua Kou Qiang Yi Xue Za Zhi 2018 Dec;53(12):858-861

Department of Cleft Lip and Palate Surgery, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 610041, China.

The RASopathies are a group of syndromes that have in common germline mutations in genes that encode components of the RAS/mitogen-activated protein kinase (MAPK) pathway and have been a focus of study to understand the role of this pathway in development and disease. These syndromes include Noonan syndrome (NS), NS with multiple lentigines (NSML), neu-rofibromatosis type 1 (NF1), Costello syndrome (CS), cardio-facio-cutaneous (CFC) syndrome, neurofibromatosis type 1-like syndrome (NFLS) and capillary malformation-arteriovenous malformation syndrome (CM-AVM). These disorders affect multiple systems, including the craniofacial complex. Read More

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December 2018

Kinetics of acid-base parameters in conventional hemodialysis.

Braz J Med Biol Res 2018 Dec 10;52(1):e7974. Epub 2018 Dec 10.

Section of Nephrology, Yale University School of Medicine, New Haven, CT, USA.

Details about the acid-base changes in hemodialysis are scarce in the literature but are potentially relevant to adequate management of patients. We addressed the acid-base kinetics during hemodialysis and throughout the interdialytic period in a cross-sectional study of adults undergoing conventional hemodialysis. Samples for blood gas analysis were obtained from the arterial limb of the arteriovenous fistula before the first session of the week (HD1), immediately at the end of HD1, and on sequential collections at 15, 30, 45, 60, and 120 min post-HD1. Read More

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December 2018

A New Technique for Transvenous Embolization of Brain Arteriovenous Malformations in Hybrid Operation.

Chin Med J (Engl) 2018 Dec;131(24):2993-2996

Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing 100070, China.

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December 2018

Congenital pial AVF along the falx cerebri with complete agenesis of the corpus callosum and bilateral parasagittal pachygyria-polymicrogyria secondary to chronic ischemia.

Childs Nerv Syst 2018 Dec 11. Epub 2018 Dec 11.

Department of Diagnostic Imaging, National University Health System, 1E Kent Ridge Rd, Singapore, 119228, Singapore.

Objective: Pial arteriovenous fistula (AVF) is an extremely rare entity due to direct arterial connection with the venous plexus without an intervening capillary network. The objective of this article is to describe a unique case of congenital pial AVF along the interhemispheric falx with complete callosal agenesis and malformation of cortical development within the bilateral anterior cerebral artery territories. We also demonstrated the distinctive feature of temporal stability of the extensive intracranial abnormalities without active intervention. Read More

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December 2018

Selective and super-selective C-arm based cone beam CT angiography (CBCTA) with DynaCT for CyberKnife radiosurgery planning of intracranial arteriovenous malformations (AVMs).

J Radiosurg SBRT 2018 ;5(4):305-313

Division of Radiation Oncology, University of Ottawa, Ottawa, ON, Canada.

Background: Successful radiosurgery for intracranial arteriovenous malformations (AVMs) requires accurate delineation of the nidus in 3D. Exact targeting and precise equipment is needed to achieve obliteration of the nidus while minimizing toxicity to the surrounding brain. In some micro-AVMs and poorly visible AVMs we have used cone beam CT angiography (CBCTA) with selective and super-selective angiography where a micro-catheter is advanced into the feeding arteries- to assist with nidus definition for CyberKnife radiosurgery planning. Read More

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January 2018
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Successful pregnancy after uterine artery embolization for uterine arterovenous malformation: a rare case report.

Int J Womens Health 2018 21;10:745-750. Epub 2018 Nov 21.

Università degli studi di Salerno - Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana", Salerno, Italy,

Objective: This paper reports on a rare case of pregnancy after uterine artery embolization (UAE) for uterine arteriovenous malformation (AVM). Debate exists about persistence of fertility in women after UAE. Adverse effects of this technique can modify both uterine echostructure, inducing necrosis and infarction, endometrial atrophy and uterine artery rupture, and ovarian reserve, causing persistent amenorrhea. Read More

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November 2018

Estimation of the number of feeding arteries of spinal arteriovenous malformations by using three-dimensional digital subtraction angiography.

Eur Spine J 2018 Dec 10. Epub 2018 Dec 10.

Department of Neurosurgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.

Purpose: Spinal angiography is the gold standard for evaluation or diagnosis of spinal arteriovenous malformations (AVMs). However, some feeding arteries might be overlooked when multiple feeders exist. This study aimed to retrospectively review cases of spinal intra-dural AVMs, which were identified by three-dimensional digital subtraction angiography (3D-DSA), and attempted to estimate the number of feeding arteries. Read More

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December 2018

Harmonic Devices: The Workhorse for Surgical Resection of Vascular Malformations.

J Cutan Aesthet Surg 2018 Jul-Sep;11(3):157-160

Department of Plastic and Cosmetic Surgery, Sir Ganga Ram Hospital, New Delhi, India.

Management of vascular malformations is multimodal with documented role of surgical resection in specific facets of this condition. Surgical resection of these lesions is technically challenging owing to diffuse and relatively ill-defined extent with involvement of multiple tissue planes limitation of access and excessive intra-operative bleeding. An observational study was conducted in 24 cases taken up for surgical resection of vascular malformations. Read More

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December 2018
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Directional multistage intraoperative microvascular Doppler in the hemilaminectomy surgical obliteration of spinal dural arteriovenous fistular.

Clin Neurol Neurosurg 2018 Nov 19;176:61-66. Epub 2018 Nov 19.

Department of Neurosurgery, Nanjing Medical University Affiliated Wuxi Second Hospital, 68, Zhong Shan Road, Wuxi, 214000, Jiangsu Province, China.

Objectives: To present our experience with the use of microvascular Doppler measurement procedure in spinal dural arteriovenous fistula (sDAVF) surgery.

Patients And Methods: All patients with sDAVF from March 2008 to March 2017 who consecutively underwent hemilaminectomy surgical obliteration with the assistance of microvascular Doppler were included. We reviewed patient records, radiological images, operative notes, microvascular Doppler files, as well as intraoperative videos RESULTS: During the study period, 7 patients with sDAVF underwent surgical treatment facilitated by microvascular Doppler. Read More

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November 2018

Contribution of flow MRI in the therapeutic management of middle face high flow arteriovenous malformation: a case report.

J Stomatol Oral Maxillofac Surg 2018 Dec 5. Epub 2018 Dec 5.

Maxillo-facial surgery department, Centre Hospitalo-Universitaire d'Amiens Avenue Laennec, 80000 Amiens, France; Facing Faces Institute Avenue Laennec, 80000 Amiens, France; EA CHIMERE, Université de Picardie Jules Verne Avenue Laennec, 80000 Amiens, France.

Backround:The radiosurgical management of high flow arteriovenous malformations (HFAVM) in the "destructive" stage requires a precise hemodynamic and anatomical assessment. Patient and Methods/Case Report: We report the case of a 32 years-old patient with a large ulcerated face HFAVM, on which Doppler ultrasound was impossible to perform. We show that, by combining 3D PCA and 2D CINE PC-MRI sequences, magnetic resonance imaging is capable to provide a complete morphometric and velocimetric mapping of the nidus and feeding arteries of the HFAVM. Read More

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December 2018

Comparative outcomes of vascular access in patients older than 70 years with end-stage renal disease.

J Vasc Surg 2018 Oct 24. Epub 2018 Oct 24.

Division of Vascular Surgery, Department of Surgery, Kyungpook National University Hospital, Daegu, South Korea.

Objective: The advantage of arteriovenous fistulas (AVFs) in older patients requiring dialysis is controversial. We reviewed our vascular access experience in patients ≥70 years of age (older group) compared with younger patients.

Methods: We analyzed consecutive patients who underwent access surgery between 2013 and 2016. Read More

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October 2018

Outcomes of basilic vein transposition versus polytetrafluoroethylene forearm loop graft as tertiary vascular access.

J Vasc Surg 2018 Oct 24. Epub 2018 Oct 24.

Division of Vascular Surgery, Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Background: Radial-cephalic arteriovenous fistula and brachial-cephalic arteriovenous fistula are the first and second choices for creating vascular access in dialysis patients as recommended by the National Kidney Foundation Kidney Disease Outcomes Quality Initiative. Basilic vein transposition or use of a forearm (polytetrafluoroethylene [PTFE]) loop graft is recommended thereafter. The aim of this study was twofold: first, to compare the outcomes and patency rates of patients treated with a basilic vein transposition with those of patients treated with a PTFE loop; and second, to identify patient-related factors of influence on patency rates. Read More

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October 2018

Immediate-access grafts provide comparable patency to standard grafts, with fewer reinterventions and catheter-related complications.

J Vasc Surg 2018 Oct 24. Epub 2018 Oct 24.

Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa.

Background: No independent comparisons, with midterm follow-up, of standard arteriovenous grafts (SAVGs) and immediate-access arteriovenous grafts (IAAVGs) exist. The goal of this study was to compare "real-world" performance of SAVGs and IAAVGs.

Methods: Consecutive patients who underwent placement of a hemodialysis graft between November 2014 and April 2016 were retrospectively identified from the electronic medical record and Vascular Quality Initiative database at two tertiary centers. Read More

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October 2018

Multiple Pulmonary and Hepatic Arteriovenous Malformations in a Patient With Rendu-Osler-Weber Disease.

Arch Bronconeumol 2018 Dec 5. Epub 2018 Dec 5.

Department of Radiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey. Electronic address:

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December 2018

Clinical Evaluation of the Cook Advance Enforcer 35 Focal-Force PTA Balloon Catheter for Treatment of Hemodialysis Fistula Stenoses: A Feasibility Study.

J Vasc Interv Radiol 2018 Dec 6. Epub 2018 Dec 6.

Department of Cook, Bloomington, Indiana.

Purpose: A prospective, single-center, single-arm feasibility study evaluated procedural and short-term performance of the Advance Enforcer 35 focal-force percutaneous transluminal angioplasty (PTA) balloon catheter in treating stenoses of mature native arteriovenous (AV) hemodialysis access circuits.

Materials And Methods: Twenty-eight patients undergoing treatment for stenosis of a mature native AV hemodialysis access circuit were enrolled at a single institution. Angiographic assessments of the study lesion were required at baseline and after the procedure. Read More

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December 2018

Mineralocorticoid receptor: A hidden culprit for hemodialysis vascular access dysfunction.

EBioMedicine 2018 Dec 5. Epub 2018 Dec 5.

Division of Kidney Disease and Hypertension, Department of Medicine, Brown University School of Medicine, Providence, RI, United States; Division of Nephrology, Department of Medicine, University of Toledo College of Medicine, Toledo, OH, United States. Electronic address:

Hemodialysis vascular access dysfunction is a common and intractable problem in clinical practice with no definitive therapy yet available. As a key mediator of vascular and cardiac maladaptive remodeling, mineralocorticoid receptor (MR) plays a pivotal role in vascular fibrosis and intimal hyperplasia (IH) and is potentiated locally in hemodialysis vascular access following diverse injuries, like barotrauma, cannulation and shear stress. MR-related genomic and non-genomic pathways are responsible for triggering vascular smooth muscle cell activation, proliferation, migration and extracellular matrix overproduction. Read More

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December 2018

Decellularized Carotid Artery Functions as an Arteriovenous Graft.

J Surg Res 2019 Feb 27;234:33-39. Epub 2018 Sep 27.

Department of Physiology, Basic Medical College of Zhengzhou University, Henan, China. Electronic address:

Background: Prosthetic arteriovenous grafts (AVG) continue to have a high rate of failure in clinical use, yet there is continued clinical demand for them. However, there is no small animal model of AVG to test novel tissue-engineered vascular grafts. We established a new rat arteriovenous graft model to compare the healing of decellularized carotid artery (CA) to autologous CA. Read More

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February 2019

Clinical, echocardiographic and advanced imaging characteristics of 13 dogs with systemic-to-pulmonary arteriovenous fistulas.

J Vet Cardiol 2018 Dec 5;20(6):415-424. Epub 2018 Nov 5.

Department of Cardiology of Clinica Veterinaria Gran Sasso, Via Donatello 26, 20131, Milano, Italy.

Objectives: The objective is to describe the clinical, radiographic, echocardiographic and angiographic findings in dogs with systemic-to-pulmonary arteriovenous fistula (SPAVF).

Animals: Thirteen medical records of client-owned dogs with a diagnosis of SPAVF were reviewed/analysed.

Methods: This is a retrospective study of case records. Read More

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December 2018

Hemodynamic effects of hemodialyzer pump speed on arteriovenous fistulas
.

Clin Nephrol 2018 Dec 11. Epub 2018 Dec 11.

Aim: Arteriovenous fistulas (AVF) are the optimal vascular access for hemodialysis although many fistulas fail. The impetus to increase hemodialyzer blood flow (QB) in order to maximize solute clearances may be counterbalanced if AVF suffer adverse hemodynamic effects from accelerated pump flows. The optimal QB to maintain adequate hemodialysis without potentially contributing to AVF dysfunction is unknown. Read More

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December 2018

Multiple arteriovenous malformations caused by RASA1 gene mutation presenting during pregnancy - a case report and review of the literature.

Vasa 2018 Dec 10:1-5. Epub 2018 Dec 10.

1 Division of Angiology and Hemostasis, University Hospitals and Faculty of Medicine, Geneva, Switzerland.

Pregnancy can influence the development and progression of congenital arteriovenous malformations (AVM) and thus lead to life-threatening complications for the mother and fetus like high output cardiac failure and premature delivery. The simultaneous presence of a capillary malformation and AVM strongly suggests a RASA1 related disorder. Keywords: Arteriovenous malformations, capillary malformation-arteriovenous malformation, capillaries/abnormalities, port-wine stain, pregnancy, RASA1 protein. Read More

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December 2018

Tracking Arteriovenous Fistula Maturation: A Novel Approach.

Blood Purif 2018 Dec 6:1-6. Epub 2018 Dec 6.

Renal Research Institute, New York, New York, USA.

Background: The time between the creation of an arteriovenous fistula (AVF) and its successful use is significantly longer in hemodialysis (HD) patients in the United States compared to those in other countries, and there is an urgent need to reduce the residence time of central-venous catheters (CVC).

Methods: Successful AVF creation and maturation results in typical hemodynamic changes, such as an increase in cardiac output and upper body blood flow (UBBF). In patients with CVC as vascular access, we measured once per minute intradialytic central-venous oxygen saturation (ScvO2) and hemoglobin levels simultaneously using the Crit-Line Monitor. Read More

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December 2018
6 Reads

Combined juvenile polyposis syndrome and hereditary hemorrhagic telangiectasia (JPS/HHT) with MRI and endoscopic correlation.

Clin Imaging 2018 Dec 2;54:37-39. Epub 2018 Dec 2.

Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline Ave., Boston, MA 02215, USA.

Juvenile polyposis syndrome (JPS) may coexist with hereditary hemorrhagic telangiectasia (HHT) due to implication of the SMAD4 gene in a subset of both diseases. To the best of our knowledge, we present the first case in the radiologic literature on the MRI findings in a patient with this rare combined diagnosis undergoing workup for burden of disease. Read More

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December 2018
6 Reads

Gastrointestinal Bleeding During Continuous-Flow Left Ventricular Assist Device Support: State of the Field.

Cardiol Rev 2019 Jan/Feb;27(1):8-13

Division of Cardiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467.

Continuous-flow left ventricular assist devices (CF-LVADs) are increasingly used for the management of advanced heart failure refractory to optimal medical therapy. Despite the encouraging outcomes with CF-LVADs, gastrointestinal bleeding (GIB) continues to be a rather concerning complication resulting in increased rates of readmission and increased morbidity. The exact pathophysiology of CF-LVAD-associated GIB remains poorly understood, and this lack of knowledge limits our ability to control this morbid complication. Read More

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December 2018
2 Reads
2.407 Impact Factor

Epithelioid angiosarcoma arising from a frontoparietal arteriovenous malformation.

J Dtsch Dermatol Ges 2018 Dec 6. Epub 2018 Dec 6.

Department of Dermatology, Venereology and Allergology, Leipzig University Medical Center, Leipzig, Germany.

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December 2018
1 Read

Links Between Strokes and Hereditary Hemorrhagic Telangiectasia: A Population-Based Study.

Can J Neurol Sci 2018 Dec 6:1-7. Epub 2018 Dec 6.

Department of Medicine, Division of Pulmonary,University of Alberta,Edmonton, Alberta,Canada.

Background: Hereditary hemorrhagic telangiectasia (HHT) is a disease of abnormal vasculature where patients are predisposed to strokes of multiple etiologies. We assessed yearly stroke incidence among Albertans with HHT and compared with the general population. Given the tendency for stroke in HHT patients, we expected HHT patients to have higher stroke incidence, in particular at younger ages. Read More

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December 2018
1 Read
1.599 Impact Factor

Transjugular percutaneous endovascular treatment of dysfunctional hemodialysis access.

J Vasc Access 2018 Dec 6:1129729818815327. Epub 2018 Dec 6.

Korea University Anam Hospital, Seoul, Republic of Korea.

Purpose:: To evaluate the feasibility and the outcomes of transjugular percutaneous endovascular treatment of dysfunctional hemodialysis access in patients with chronic kidney disease.

Methods:: A total of 50 transjugular treatments in 38 patients with arteriovenous fistulas or arteriovenous grafts from September 2011 to May 2015 were included in this study. Medical records and angiographies were retrospectively reviewed. Read More

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December 2018
10 Reads
1.017 Impact Factor

The impact of functioning hemodialysis arteriovenous accesses on renal graft perfusion: Results of a pilot study.

J Vasc Access 2018 Dec 6:1129729818817248. Epub 2018 Dec 6.

1 Kidney Transplant Unit, Nephrology Department, Hospital de Santa Cruz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal.

Introduction:: After a kidney transplant, it is unknown whether the maintenance of a functioning hemodialysis arteriovenous access could have deleterious effects on renal grafts. We hypothesize that maintaining an arteriovenous access can deviate a significant proportion of the cardiac output from the renal graft. The aim of this study was to investigate whether a temporary closure of the arteriovenous access could lead to an increase in graft perfusion. Read More

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December 2018
1 Read

Transforming Growth Factor Beta-1 Promotes Smooth Muscle Cell Proliferation and Migration in an Arteriovenous Fistulae, the Role of Wall Shear Stress.

Ther Apher Dial 2018 Dec 6. Epub 2018 Dec 6.

Department of Kidney Disease and Blood Purification, Institute of Urology & Key Laboratory of Tianjin, The Second Hospital of Tianjin Medical University, Tianjin, China.

Background: The wall shear stress (WSS) as a mechanical stimuli to venous wall has a significant role in neointimal hyperplasia of arteriovenous fistulae (AVF), which is often related to the proliferation and migration of vascular smooth muscle cells(VSMCs). Transforming growth factor beta-1 (TGF-β1) has the function of promoting VSMCs proliferation and migration. Our study is to detect that the correlation between WSS, TGF-β1, VSMCs proliferation and neointimal hyperplasia. Read More

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December 2018
1 Read

A case of duodenal hemorrhage due to arteriovenous malformation around a serous cystic neoplasm.

Surg Case Rep 2018 Dec 5;4(1):140. Epub 2018 Dec 5.

Department of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, 1007, Shimo-Nagakubo, Sunto-Nagaizumi, Shizuoka, 4118777, Japan.

Background: No reports have so far described arteriovenous malformation (AVM) in the pancreas caused by a tumor. We herein report a case of pancreatoduodenectomy for a patient who developed duodenal hemorrhage due to AVM developed around serous cystic neoplasm (SCN) of the pancreas.

Case Presentation: A 79-year-old man was referred to our hospital because of anemia (Hb 7. Read More

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December 2018
3 Reads

Intracranial dural arteriovenous fistula mistaken as cervical transverse myelitis.

Pract Neurol 2018 Dec 5. Epub 2018 Dec 5.

Neurology, The Walton Centre NHS Foundation Trust, Liverpool, UK

We describe a man with an intracranial dural arteriovenous fistula that presented as a subacute longitudinally extensive cervical myelopathy. The uncommon location of the fistula and the absence of specific radiological signs resulted in initial misdiagnosis as longitudinally extensive transverse myelitis. Neurologists should have a high index of suspicion for dural arteriovenous fistula in older men, especially those with subacute or chronic symptoms, acellular cerebrospinal fluid and, particularly, if there is neurological deterioration soon after corticosteroid treatment. Read More

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December 2018
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Study on the Therapeutic Effects of Trigeminal Neuralgia With Microvascular Decompression and Stereotactic Gamma Knife Surgery in the Elderly.

J Craniofac Surg 2018 Nov 30. Epub 2018 Nov 30.

Department of Neurosurgery, The Second Hospital of Shandong University, Jinan, China.

Objective: The aim of the study was to evaluate the efficacy of microvascular decompression (MVD) and stereotactic gamma knife surgery (GKS) in the treatment of trigeminal neuralgia (TN) in the elderly.

Patients And Methods: Retrospective analysis of 137 elderly cases with TN underwent MVD, partial sensory rhizotomy (PR) treatment from August 2007 to March 2017 and 56 cases underwent GKS treatment from May 2014 to February 2017 was made, compared the efficacy of MVD and GKS in different age groups.

Results: In 125 patients of MVD alone, the responsible vessels included 60 cases of superior cerebellar artery, 55 cases of anterior inferior cerebellar artery, 4 cases of venous vascular compression, 13 cases of mixed arteriovenous compression and 3 cases of vertebral artery, and 2 cases of no responsible vessel. Read More

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November 2018
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A Pathogenic Homozygous Mutation in The Pleckstrin Homology Domain of RASA1 Is Responsible for Familial Tricuspid Atresia in An Iranian Consanguineous Family.

Cell J 2019 Apr 18;21(1):70-77. Epub 2018 Nov 18.

Department of Pediatrics Cardiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Electronic Address:

Objective: Tricuspid atresia (TA) is a rare life-threatening form of congenital heart defect (CHD). The genetic mechanisms underlying TA are not clearly understood. According to previous studies, the endocardial cushioning event, as the primary sign of cardiac valvulogenesis, is governed by several overlapping signaling pathways including Ras/ ERK pathway. Read More

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April 2019
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