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Clin Med (Lond) 2022 May;22(3):278-279

The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong, China.

A 38-year-old man was admitted to the hospital due to a "suddenly developed right hemiplegia, unconsciousness and gaze to the right". Pulmonary arteriovenous fistulas (PAVFs) are rare but an important cause of stroke in young people, which is easy to be clinically neglected. Therefore, for young patients with pulmonary diseases and cerebral infarction, the possibility of PAVF should be considered. Read More

Vasc Endovascular Surg 2022 May 15:15385744211037834. Epub 2022 May 15.

1861Division of Vascular and Endovascular Surgery, Brigham & Women's Hospital, Boston, MA, USA.

: The inability of a newly created arteriovenous fistula to support hemodialysis due to non-maturation results in increased complications secondary to catheter dependence. : In view of the highly variable approaches by providers with heterogenous backgrounds (general surgery, vascular surgery, interventional radiology and interventional nephrology, urology, transplant surgery, etc.) we sought to describe a collection of algorithms that have functioned well in our hands to manage this challenging clinical problem and guide trainees and practicing clinicians alike. Read More

Front Physiol 2022 27;13:881658. Epub 2022 Apr 27.

Institute of Physiology, 1st Faculty of Medicine, Charles University, Prague, Czechia.

Arteriovenous fistulas (AVF) represent a low resistant circuit. It is known that their opening leads to decreased systemic vascular resistance, increased cardiac output and other hemodynamic changes. Possible competition of AVF and perfusion of other organs has been observed before, however the specific impact of AVF has not been elucidated yet. Read More

Cureus 2022 Apr 14;14(4):e24134. Epub 2022 Apr 14.

Department of Neurovascular Diseases, Instituto Nacional de Ciencias Neurológicas, Lima, PER.

Spinal dural arteriovenous fistula (SDAVF) is characterized by an abnormal connection between a radicular artery and the venous plexus producing spinal cord venous congestion. It manifests with nonspecific sensory and motor symptoms. We present three cases of SDAVF with different forms of presentation; in two cases, an autoimmune etiology was considered, and in the third case, the initial diagnosis was chronic radiculopathy. Read More

Front Neurol 2022 28;13:855924. Epub 2022 Apr 28.

Department of Spine and Osteopathic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.

Background: A cervical arteriovenous fistula (AVF) in neurofibromatosis type I (NF-1) is uncommon, and it brings challenges and difficulty in treatment.

Case Presentation: A 39-year-old woman was diagnosed with an NF-1-associated spontaneous vertebral artery-internal jugular vein-spinal vein fistula. The fistula was placed by coil embolization. Read More

J Vasc Bras 2022 2;21:e20210199. Epub 2022 May 2.

University of Colombo, Colombo, Sri Lanka.

Co-occurrence of acute limb ischemia (ALI) and arteriovenous fistula (AVF) as a manifestation of inadvertent arterial injury during percutaneous femoral vein dialysis catheter insertion is a rare and dangerous, but preventable complication. Iatrogenic femoral AVF commonly presents late, with leg swelling or high output cardiac failure. However, the co-occurrence of a femoral AVF with both progressive leg swelling, and acute thromboembolism has not been previously reported. Read More

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

J Cerebrovasc Endovasc Neurosurg 2022 May 16. Epub 2022 May 16.

Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.

The artery of Davidoff and Schechter (ADS), a pure meningeal branch of the posterior cerebral artery (PCA), is often reported as a feeder of the tentorial dural arteriovenous fistula (TDAVF). However, there are few reported cases of embolization via this artery. We present an interesting case of a patient with incidentally found TDAVF fed by the ADS and with fetal type posterior communicating artery, in which the feeder was confused with the PCA due to the similar pathways around the brain stem. Read More

J Cerebrovasc Endovasc Neurosurg 2022 May 16. Epub 2022 May 16.

Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.

Vertebrovertebral arteriovenous fistulas (VVAVFs) are rare entities that lack consensus guidelines for their management. Our case describes the successful treatment of a traumatic VVAVF via a contralateral deconstructive endovascular approach. A 64-year-old female presented following a traumatic fall. Read More

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

J Clin Med 2022 May 6;11(9). Epub 2022 May 6.

Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland.

Background: The distal ulnar-basilic arteriovenous fistula (UBAVF) is a rarely used alternative type of vascular access for haemodialysis. The location of the vein on the back aspect of the forearm forces an extremely uncomfortable external rotation of the upper limb during surgery when the patient is in a supine position.

Methods: We present a new approach towards creating UBAVF, which involves placing the patient in the prone position, thus eliminating the aforementioned inconvenience. Read More

J Clin Med 2022 Apr 27;11(9). Epub 2022 Apr 27.

Department of Epidemiology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540136 Targu Mures, Romania.

Background: The evolution of the COVID-19 pandemic affected healthcare systems worldwide. The patients with chronic kidney disease (CKD), diabetes, and cardiovascular disease were most affected and had an unfavorable outcome.

Methods: We examined the activity of the Nephrology Department from Târgu-Mureș County Emergency Hospital retrospectively, comparing two periods: June 2020-November 2021 (COVID-19 period) and June 2018-November 2019 (non-COVID-19 period). Read More

Korean J Neurotrauma 2022 Apr 17;18(1):145-149. Epub 2022 Feb 17.

Department of Neurosurgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.

Spinal epidural arteriovenous fistula (SEDAVF) is a rare vascular malformation. Due to the mass effect of enlarged epidural veins and venous hypertension, progressive radiculopathy and myelopathy are likely to occur. A 33-year-old female presented with right upper extremity weakness for a month. Read More

Korean J Neurotrauma 2022 Apr 14;18(1):104-109. Epub 2022 Feb 14.

Department of Neurosurgery, Medical Research Institute, Pusan National University Hospital, Busan, Korea.

A dural arteriovenous fistula (DAVF) is a pathologic arteriovenous shunt located within the dural wall of a venous sinus. In addition, DAVFs are associated with sinus thrombosis. Consequently, sinus occlusion may occur near DAVF lesions, making treatment challenging. Read More

Cardiol Ther 2022 May 12. Epub 2022 May 12.

Szpital Medicover, Al. Rzeczypospolitej 5, 02-972, Warsaw, Poland.

A 30-year-old female was initially diagnosed with cardiac insufficiency and severe claudication. Additional imaging revealed a large iliac arteriovenous fistula, which was treated with an endovascular technique. A custom-made, self-expanding, polytetrafluorethylene-covered stent was implanted to restore the physiologic hemodynamic environment. Read More

Vascular 2022 May 13:17085381221092502. Epub 2022 May 13.

Department of Cardiovascular Surgery, 218502Istanbul Medipol University Faculty of Medicine, Istanbul, Turkey.

Background: In this case report, we present two chronic hemodialysis patients with upper extremity swelling due to central venous occlusions together with their clinical presentation, surgical management and brief review of the literature.

Methods: The first patient who was a 63-year-old female patient with a history of multiple bilateral arteriovenous fistulas (AVFs) was referred to our clinic. Physical examination demonstrated a functioning right brachio-cephalic AVF, with severe edema of the right arm, dilated venous collaterals, facial edema, and unilateral breast enlargement. Read More

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

J Vasc Access 2022 May 12:11297298221097233. Epub 2022 May 12.

Division of Nephrology, Department of Medicine, Unidade Local de Saúde de Castelo Branco, EPE, Castelo Branco, Portugal.

The number of elderly patients initiating hemodialysis (HD) increased considerably over the past decade. Arteriovenous fistulas (AVFs) are the preferred vascular access (VA) type in most HD patients. Choice of VA for older hemodialysis patients presents a challenge. Read More

J Neurointerv Surg 2022 May 11. Epub 2022 May 11.

Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA.

The pharyngo-tympano-stapedial middle meningeal artery (PTS-MMA) variant has been described in one case report and never in the setting of arterial supply to a dural arteriovenous fistula, to our knowledge. We report the case of a middle-aged patient with severe, daily headache who presented to our institution for angiography and treatment. CT angiography and MRI demonstrated an enlarged left middle meningeal artery coursing to a large venous varix in the falcotentorial region. Read More

J Nephrol 2022 May 11. Epub 2022 May 11.

Imperial College Healthcare NHS Trust, London, UK.

Central venous catheters can provide long-term access for haemodialysis patients who cannot have an arteriovenous fistula or graft fashioned. However, long-term central venous catheter use for haemodialysis may lead to complications including central venous stenosis, and superior vena cava obstruction in its worst form. Here, we describe the case of a patient on haemodialysis via central venous catheters for over 20 years, in whom chronic superior vena cava obstruction led to the development of mediastinal collateral vessels. Read More

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

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

Saudi J Kidney Dis Transpl 2021 Sep-Oct;32(5):1407-1417

Department of Nephrology, Charles Nicolle Hospital, Tunis, Tunisia.

Chronic kidney disease (CKD) treated by hemodialysis (HD) is a worldwide major public health problem. Its incidence is getting higher and higher, leading to an alarming social and economic impact. The survival of these patients is significantly low, especially during the first year of treatment. Read More

Neurosurgery 2022 May 11. Epub 2022 May 11.

Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA.

Background: The transradial approach has increasingly been used for neurointerventions because of the improved safety profile compared with transfemoral. However, it is important to be aware of potential complications such as radial artery (RA) spasm, RA occlusion, pseudoaneurysm, extravasation, arteriovenous fistula, and wrist hematoma as well as their management.

Objective: To present our institution's experience with the prevention and management of local access site complications associated with the transradial approach for neuroendovascular interventions. Read More

Acta Radiol 2022 May 9:2841851221097462. Epub 2022 May 9.

Department of Imaging Sciences and Interventional Radiology, 29354Sree Chitra Tirunal Institute of Medical Sciences and Technology, Trivandrum, Kerala, India.

Background: A non-invasive, reliable imaging modality that characterizes cavernous sinus dural arteriovenous fistula (CSDAVF) is beneficial for diagnosis and to assess resolution on follow-up.

Purpose: To assess the utility of 3D time-of-flight (TOF) and silent magnetic resonance angiography (MRA) for evaluation of CSDAVF from an endovascular perspective.

Material And Methods: This prospective study included 37 patients with CSDAVF, who were subjected to digital subtraction angiography (DSA) and 3-T MR imaging with 3D TOF and silent MRA. Read More

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

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

Arch Bronconeumol 2022 May 5. Epub 2022 May 5.

Servicio de Cirugía Torácica y Trasplante Pulmonar, Hospital Universitario A Coruña, A Coruña, Spain.

J Neurosurg Spine 2022 May 6:1-5. Epub 2022 May 6.

1Division of Neuroradiology, Joint Department of Medical Imaging, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.

Objective: Spinal dural arteriovenous fistulas (SDAVFs) typically represent abnormal shunts between a radiculomeningeal artery and radicular vein, with the point of fistulization classically directly underneath the pedicle of the vertebral body, at the dural sleeve of the nerve root. However, SDAVFs can also develop in atypical locations or have more than one arterial feeder, which is a variant of SDAVF. The aim of this study was to describe the incidence and multidisciplinary treatment of variant SDAVFs in a single-center case series. Read More

Radiol Case Rep 2022 Jun 25;17(6):2262-2264. Epub 2022 Apr 25.

Department of Medicine and Radiology University of Alabama at Birmingham, Birmingham, AL, USA.

The search for a reliable, complication-free vascular access is crucial among dialysis patients. The creation of a long-term access site for hemodialysis is dependent on several factors that mandate forming a life-plan for dialysis access, with upper extremity vascular access being the preferred route. However, complications including poor maturation, venous anastomosis lesions, and thrombosis are all associated with poor survival of these accesses. Read More

J Vasc Bras 2021 10;20:e20210042. Epub 2021 Sep 10.

Hospital Municipal do Tatuapé Dr. Carmino Caricchio (HMCC), São Paulo, SP, Brasil.

Acute arterial occlusion remains a major challenge for the vascular surgeon. The therapeutic approach depends mostly upon the severity of the tissue injury and the duration of symptoms. Several techniques are available in the current therapeutic arsenal, however, regardless of the technique chosen, postoperative factors frequently observed, such as poor outflow status, or even low graft flow, can contribute negatively to the outcome of revascularization. Read More