36,381 results match your criteria Arteriovenous Malformations


Hemorrhagic shock due to colonic arteriovenous malformation in late pregnancy: a case report.

Int J Emerg Med 2022 May 17;15(1):20. Epub 2022 May 17.

Interventional Radiology Center, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan.

Background: Intestinal arteriovenous malformations are difficult to detect because they often present asymptomatically. However, pregnancy increases the hemorrhagic risk of intestinal arteriovenous malformations. This can lead to massive bleeding and hemodynamic instability, threatening the lives of both the mother and fetus. Read More

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Frameless Angiography-based GammaKnife Stereotactic Radiosurgery for Cerebral Arteriovenous Malformations: A Proof-of-Concept Study.

World Neurosurg 2022 May 14. Epub 2022 May 14.

Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, PA. Electronic address:

Background: Traditional GammaKnife radiosurgery (GKRS) of brain arteriovenous malformations (AVMs) using digital subtraction angiography (DSA) requires head immobilization using a stereotactic frame.

Objective: We describe our protocol of frameless GKRS using DSA while maintaining high spatial resolution for precision.

Methods: Retrospective review of unruptured AVM patients who underwent frameless GKRS. Read More

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Medical Management of Uterine Arteriovenous Malformation: A Case Series.

Eur J Obstet Gynecol Reprod Biol 2022 May 13;274:48-55. Epub 2022 May 13.

Department of Obstetrics and Gynecology, University of British Columbia, Suite 930, 1125 Howe Street, Vancouver, BC V6Z 2K8, Canada; Women's Health Research Institute (WHRI), H214 - 4500 Oak Street, Vancouver, BC V6H 3N1, Canada; Division of Reproductive Endocrinology & Infertility, Department of Obstetrics and Gynecology, University of British Columbia, BC Women's Hospital, C420 -4500 Oak Street, Vancouver, BC V6H 3N1, Canada. Electronic address:

Background: There has been increasing interest in medical management of uterine Arteriovenous Malformations (AVMs) in hemodynamically stable patients as a means of decreasing the need for invasive treatment that may impact fertility.

Cases: Amongst six cases of sonographically diagnosed uterine AVM managed medically with combined oral contraceptive pills or medroxyprogesterone acetate, three experienced complete resolution and three experienced partial resolution. Amongst those with complete resolution, all had a subsequent pregnancy that had no complication attributable to previous AVM or medical therapy. Read More

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Standard umbilical artery catheters used as diagnostic and neurointerventional guide catheters in the treatment of neonatal cerebrovascular malformations.

J Neurointerv Surg 2022 May 13. Epub 2022 May 13.

Neurointerventional Radiology, Boston Children's Hospital, Boston, Massachusetts, USA

Background: Vascular access in neonates is limited by the small size of the femoral artery and the risk of complications, including thrombosis and limb ischemia. Although umbilical artery access has been described, previous reports detail exchange of the umbilical artery catheter (UAC) for a conventional arterial sheath, which can be difficult and cumbersome. We aim to describe direct use of the UAC as the sheath and guide catheter in neonatal patients requiring endovascular treatment for life-threatening intracranial arteriovenous shunts. Read More

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Pulmonary arteriovenous malformation and inherent complications with solitary lung nodule biopsy-literature overview and case report.

Radiol Case Rep 2022 Jul 6;17(7):2353-2361. Epub 2022 May 6.

Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam.

Pulmonary arteriovenous malformation, also known as an arteriovenous fistula, is typically a congenital disease caused by structural deficiencies, particularly the lack of capillary wall development, leading to the abnormal dilation of the pulmonary capillaries. The majority of pulmonary arteriovenous malformation cases are associated with Rendu-Osler-Weber syndrome, also known as hereditary hemorrhagic telangiectasia. Pulmonary arteriovenous malformation rarely occurs due to chest trauma. Read More

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Preclosure of large bore venous access sites in patients undergoing transcatheter mitral replacement and repair.

Catheter Cardiovasc Interv 2022 May 14. Epub 2022 May 14.

Center for Structural Heart Disease, Henry Ford Hospital, Detroit, Michigan, USA.

Objective: We aim to report on the efficacy and safety of large bore venous access (LBVA) preclosure with Perclose™ (Abbott Vascular Devices) suture-mediated device use following transcatheter edge-to-edge (TEER) and replacement (TMVR).

Background: Patients requiring TEER and TMVR require LBVA. Clinical outcome data on the use of suture-mediated devices for LBVA site closure are limited. 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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Vascular occlusion with 0.035-inch hydrogel expandable coils in congenital heart diseases and vascular anomalies.

J Cardiol 2022 May 10. Epub 2022 May 10.

Department of Cardiovascular Surgery, Okayama University Hospital, Okayama, Japan.

Background: We present our experience with transcatheter vascular occlusion using 0.035-inch hydrogel expandable coils, which has been reported only in a few cases in the pediatric cardiology fields.

Methods: This study is a retrospective analysis of all patients who underwent transcatheter embolization with 0. Read More

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Safety and Effectiveness of First-line Endovascular Management of Low-Grade Brain Arteriovenous Malformations : Single Center Experience in 145 Patients.

Clin Neuroradiol 2022 May 13. Epub 2022 May 13.

Department of Neuroradiology, Pitié-Salpêtrière Hospital, APHP, Sorbonne University, 47-83 Boulevard de l'Hôpital, 75013, Paris, France.

Purpose: Spetzler-Martin grade (SMG) I-II (low-grade) brain arteriovenous malformations (BAVMs) are often considered safe for microsurgical resection; however, the role of endovascular treatment (EVT) remains to be clarified in this indication, especially for unruptured BAVMs. The purpose of our study was to assess the safety and effectiveness of endovascular treatment as the first-line treatment for low-grade BAVMs.

Methods: From our local database, we retrospectively retrieved patients with low-grade BAVMs, either ruptured or unruptured, treated by embolization as first-line treatment in our department between January 2005 and January 2020. Read More

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Arteriovenous Cerebral High Flow Shunts in Children: From Genotype to Phenotype.

Front Pediatr 2022 25;10:871565. Epub 2022 Apr 25.

Department of Diagnostic Radiology and Interventional Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland.

Objective: To study the genotypes and phenotypes of cerebral arteriovenous fistulas that drain or do not drain through the vein of Galen, and true vein of Galen aneurysmal malformations, in order to determine whether genotyping could help improve classification of these malformations and their management.

Methods: We carried out a retrospective review of genetic and phenotypic data in databases of four centers. All children with cerebral arteriovenous fistula or vein of Galen aneurysmal malformations aged below 18 years at onset were included. Read More

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Factors That Influence the Speed and Completion of Double Balloon Enteroscopy in Patients with Arteriovenous Malformations.

Dig Dis Sci 2022 May 10. Epub 2022 May 10.

Department of Medicine, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.

Background: Double balloon enteroscopy remains a resource and time-intensive procedure that is not available in many endoscopy units.

Aims: We aimed to identify variables impacting the speed and completion of double balloon enteroscopy.

Methods: We retrospectively reviewed 550 patients. Read More

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Ischemic complications in the neurosurgical and endovascular treatments of craniocervical junction arteriovenous fistulas: a multicenter study.

J Neurosurg 2022 Apr 29:1-10. Epub 2022 Apr 29.

6Department of Neurosurgery, Hiroshima University Hospital, Hiroshima, Japan.

Objective: A recent comparative analysis between neurosurgical and endovascular treatments for craniocervical junction (CCJ) arteriovenous fistulas (AVFs) revealed better treatment outcomes in the neurosurgery group than in the endovascular group. This finding was attributed to the higher than expected rate of ischemic complications in the endovascular group than in the neurosurgery group (26% vs 7.7%, p = 0. 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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Cerebral Cavernous Malformations Confined in the Cerebral Sulci.

Neurol India 2022 Mar-Apr;70(2):822-823

Departments of Neurological Surgery, Juntendo University Urayasu Hospital, Urayasu, Chiba.

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Three-dimensional rotational angiography utility in imaging and intervention in a case of pulmonary arteriovenous malformation.

Ann Pediatr Cardiol 2021 Oct-Dec;14(4):533-535. Epub 2022 Mar 25.

Department of Pediatric Cardiology, Congenital and Structural Heart Diseases, Max Hospital, Saket, Delhi, India.

Pulmonary arteriovenous malformation (PAVM) is an abnormal communication between the pulmonary artery and the pulmonary vein. PAVMs are usually congenital in origin; however, they may be acquired. Three-dimensional rotational angiography (3DRA) is a technique used increasingly for imaging in congenital heart disease but to our knowledge has never been used in imaging and planning device closure of PAVM. Read More

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Hemodynamic alterations following a cerebellar arteriovenous malformation resection: Case report and densitometric quantitative analysis from CT imaging.

Neurocirugia (Astur : Engl Ed) 2022 May-Jun;33(3):141-148

Department of Neurosurgery, University Hospital 12 de Octubre, Avda de Córdoba s/n, Madrid 28041, Spain.

Background: Cerebellar arteriovenous malformations (cAVMs) are rare and challenging lesions with an aggressive natural history. The mechanisms whereby a patient can worsen clinically after a supratentorial AVM resection include an acute alteration in cerebral hemodynamics, which is a known cause of postoperative hyperemia, edema and/or hemorrhage. These phenomena has not been described for cAVMS. Read More

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Comparison of transarterial n-BCA and Onyx embolization of brain arteriovenous malformations: A single-center 18-year retrospective analysis.

J Cerebrovasc Endovasc Neurosurg 2022 May 6. Epub 2022 May 6.

Department of Neurological Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.

Objective: Brain arteriovenous malformations (AVM) are commonly treated with endovascular embolization. Due to the rapid evolution of endovascular technology and lack of consistent practice guidelines regarding AVM embolization, further study of AVM embolization outcomes is warranted.

Methods: We conducted a retrospective review of AVMs embolized at a single center from 2002-2019. Read More

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Massive maternal haemorrhage due to a mandibular arteriovenous malformation in a term pregnancy: A case report.

Case Rep Womens Health 2022 Apr 28;34:e00418. Epub 2022 Apr 28.

Royal Prince Alfred Hospital, Women and Babies Department, Sydney, Australia.

Mandibular arteriovenous malformations (AVMs) are vascular lesions that are rare in pregnancy but that can be life threatening due to the potential for massive haemorrhage when ruptured. This report describes a 30-year-old woman who presented at 39 weeks of gestation with hypovolemic shock secondary to a massive haemorrhage from her oral cavity. After resuscitation, she underwent an emergency caesarean section indicated for fetal distress. Read More

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Isolated pathologies of Tensor Fasciae Latae: Retrospective cohort analysis from a tertiary referral centre.

J Clin Orthop Trauma 2022 Jun 20;29:101870. Epub 2022 Apr 20.

Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, United Kingdom.

Introduction: Tensor Fasciae Latae (TFL) and the iliotibial band (ITB) act as a single functional unit in maintaining pelvic stability whilst standing, walking, or running in human beings. The Tensor Fasciae Latae (TFL) muscle acts across the hip and the knee joint. Consequently, though its pathologies traditionally present with lateral hip pain, identifying the precise clinical diagnosis can be a challenge. Read More

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Left atrial appendage occlusion in hereditary haemorrhagic telangiectasia patients (Rendu Osler Syndrome) with non-valvular atrial fibrillation: Prevention of cardioembolic events while avoiding the long-term risks of oral anticoagulation.

Cardiovasc Revasc Med 2022 Apr 30. Epub 2022 Apr 30.

Cardiology Department, Cardiovascular Institute (ICCV), Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain.. Electronic address:

Background/purpose: Hereditary haemorrhagic telangiectasia (HHT) (Osler-Weber-Rendu Syndrome) is an inherited vascular disorder, associated with arteriovenous malformations and bleeding events. Despite potential benefits, data regarding the use of left atrial appendage occlusion (LAAO) in HHT patients with non-valvular atrial fibrillation (NVAF) is scarce. The aim of the present paper was to assess the outcomes of HHT patients undergoing LAAO. Read More

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Ruptured brain arteriovenous malformation in a pregnant woman: a case report.

Br J Neurosurg 2022 May 5:1-4. Epub 2022 May 5.

Neurosurgery Department, Center for Research and Training in Neurosurgery (CIEN), Samaritana University Hospital, Rosario University School of Medicine, Bogotá, Colombia.

Background: Brain arteriovenous malformations (bAVMs) are vascular lesions that commonly present with intracranial haemorrhage. Pregnancy has been associated with an increased risk of bAVM rupture. However, their natural history in pregnant women is uncertain. Read More

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Visibility of liquid embolic agents in fluoroscopy: a systematic in vitro study.

J Neurointerv Surg 2022 May 4. Epub 2022 May 4.

Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany

Background: Endovascular embolization using liquid embolic agents (LEAs) is frequently applied for the treatment of intracranial vascular malformations. Appropriate visibility of LEAs during embolization is essential for visual control and to prevent complications. Since LEAs contain different radiopaque components of varying concentrations, our aim was the systematic assessment of the visibility of the most used LEAs in fluoroscopy. Read More

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The Hybrid Operative Suite with Intra-operative Biplane Rotational Angiography in Pediatric Cerebrovascular Neurosurgery: Utility and Lessons Learned.

Pediatr Neurosurg 2022 May 4. Epub 2022 May 4.

Introduction: The benefits of performing open and endovascular procedures in a hybrid neuroangiography surgical suite include confirmation of treatment results and reduction in number of procedures, leading to improved efficiency of care. Combined procedural suites are infrequently used in pediatric facilities due to technical and logistical limitations. We report the safety, utility and lessons learned from a single-institution experience using a hybrid suite equipped with biplane rotational digital subtraction angiography and pan-surgical capabilities. Read More

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Eccrine Angiomatous Hamartoma With Arteriovenous Malformation: A Rare Entity Re-Explored.

Cureus 2022 Mar 30;14(3):e23669. Epub 2022 Mar 30.

Pathology and Laboratory Medicine, King Faisal Hospital, Makkah, SAU.

Eccrine angiomatous hamartoma (EAH) is a rare, benign, slow-growing cutaneous lesion characterized by hamartomatous proliferation of the eccrine glands and vascular structures. It usually arises in early childhood; however, cases in adults have also been reported. It is diagnosed based on the clinical features of the lesion as well as the histopathological findings of the excised tissue. Read More

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Arteriovenous Malformation of the Uterus in a 41-Year-Old Woman Presenting as Uterine Bleeding.

Cureus 2022 Mar 30;14(3):e23646. Epub 2022 Mar 30.

Pathology and Laboratory Medicine, Augusta University Medical College of Georgia, Augusta, USA.

An arteriovenous malformation (AVM) is a vascular lesion most frequently encountered in the brain, lungs, colon, and soft tissues of the extremities. However, rarely, an AVM may develop in the uterus, where it can cause abnormal and even life-threatening uterine bleeding. Here, we present the case of a 41-year-old G6P6 woman with abnormal uterine bleeding which resulted in a hemoglobin level of 10. Read More

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Capillary malformation-arteriovenous malformation syndrome associated with basilar artery aneurysm.

Pediatr Dermatol 2022 May 3. Epub 2022 May 3.

Department of Dermatology and Venereology, Hospital de Braga, Braga, Portugal.

A 23-day-old boy with prenatal diagnosis of basilar artery aneurysm presented with multiple congenital red patches consistent with capillary malformations. Genetic testing confirmed the presence of a heterozygous pathogenic variant of the RASA1 gene, confirming the diagnosis of capillary malformation-arteriovenous malformation (CM-AVM) syndrome. This case illustrates an atypical presentation of the RASA1 associated CM-AVM syndrome, with the intracranial vascular malformation diagnosis preceding the identification of the skin lesions. Read More

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Management of pulmonary arteriovenous malformations involves additional factors aside from the diameter of feeding arteries: a 3-year case-case retrospective analysis.

Respir Res 2022 Apr 30;23(1):107. Epub 2022 Apr 30.

Department of Radiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507 Zhengmin Road, Shanghai, 200433, China.

Background: Pulmonary arteriovenous malformations (PAVMs) are rare but cause various manifestations. Although the diameter of feeding arteries has been linked to treatment decisions, relationships among the characteristics of PAVMs, clinical symptoms, and treatment effect remain unclear. The present study was performed to investigate how collective characteristics of PAVMs relate to clinical symptoms and to provide proper treatment recommendations for patients with PAVMs. Read More

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Cerebral venous sinus thrombosis and dural arteriovenous fistula associated with protein S deficiency: a case series study.

BMC Neurol 2022 May 2;22(1):164. Epub 2022 May 2.

The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China.

Objective: To describe the characteristics of patients with cerebral venous sinus thrombosis (CVST) and dural arteriovenous fistula (AVF) associated with protein S (PS) deficiency.

Methods: We conducted a search of medical records in Hainan General Hospital from January 2000 to December 2020 for coexistence of CVST and dural AVF associated with PS deficiency and searched PubMed、Embase and Chinese biomedical databases (CBM) for all literature describing CVST and dural AVF with PS. We analyzed clinical characteristics, location, sequence of CVST and dural AVF, level of PS, therapeutic methods and prognosis. Read More

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Combined vascular malformation of neck: A case report.

Ann Med Surg (Lond) 2022 Apr 29;76:103531. Epub 2022 Mar 29.

Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel, 45210, Nepal.

Vascular malformations are developmental anomalies occurring due to defective vasculogenesis. Depending on the number of vessels involved, they are subgrouped into simple or combined types. Combined vascular malformations are a rare clinical entity with two or more vascular malformations (capillary, venous, arteriovenous, lymphatic) present in one lesion. Read More

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Feasibility of Transtibial Access for Uterine Artery Embolization.

Authors:
Jason C Smith

J Vasc Interv Radiol 2022 05;33(5):554-557

Division of Interventional Radiology, Department of Radiology, Loma Linda University Health, Loma Linda, California. Electronic address:

Ten women with a mean body mass index of 31.5 kg/m and symptomatic uterine pathology underwent uterine artery embolization (UAE) via transtibial access (TTA). Nine out of 10 UAEs were successfully performed via TTA, with 2 minor adverse events. Read More

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