Search results for " arteriovenous fistula"

Intraoperative microvascular Doppler monitoring of blood flow within a spinal dural arteriovenous fistula: a precious surgical tool. Case report.

2001

The authors describe a case of spinal arteriovenous fistula (AVF) treated by a microvauscular Doppler–assisted surgical interruption of the arterialized vein. Microvascular Doppler monitoring represents a valid, widely available, non-invasive tool that enables identification, through flow spectrum analysis, of components of this type of vascular malformation. In this case because the location of the fistula was identified prior to opening the dura only minimally invasive surgery was required. Direct recordings of the arterialized draining vein and the nidus of the fistula demonstrated a pathological spectrum caused by the arterial supply and the disturbed venous outflow in which a high-resi…

Delayed and incomplete treatment may result in dural fistula development in children with Vein of Galen malformation

2017

The association of dural arteriovenous fistulas (DAVF) in children with Vein of Galen malformation (VGM) has recently been reported for the first time. In a larger series of cases treated with transarterial NBCA embolization, 30% had DAVF. We wanted to analyze the development of DAVF in our cohort of children with VGM and to evaluate whether their occurrence depends on different treatment timing and embolic materials. We analyzed 43 VGM cases treated with a combined transarterial and transvenous approach between 2003 and 2016. In our early series until 2011, we used coils solely in 21 children. Since 2012, 22 children were treated with the combination of coils and Onyx. In the early series…

Evidence against the role for dural arteriovenous fistulas in the pathogenesis of multiple sclerosis

2008

Vascular complications on arterial puncture site after coronaric and peripheral angiography

2011

Il cateterismo cardiaco, l'angiografia coronarica e periferica e le procedure interventistiche sono tecniche contrastografiche che prevedono la visualizzazione radiografica dei vasi coronarici e periferici dopo l'iniezione selettiva di mezzo di contrasto radiopaco. Si tratta di tecniche relativamente sicure, anche se esiste un certo rischio di morbilità e mortalità. Nel nostro studio abbiamo valutato le varie complicanze mettendole in relazione con fattori demografici e clinici, terapie, caratteristiche della puntura e della procedura.

Traumatic arteriovenous fistula as consequence of TMJ arthroscopic surgery. A case report

2016

The ocurrence of a traumatic arteriovenous fistula after arthroscopic surgery of TMJ represents an extremely rare event. Specifically, this uncommon complication has been described only in a few case reports. In this light, the most frequent symptoms showed by this disease are thrills, bruits, pulsatile tinnitus, and an expansible vascular mass. Importantly, the severity of these symptoms is also dependent on the vessels involved. With regard to the management, is important to note that the vessel ligation with surgery as well as vessel emolization with endovascular procedures have been shown to be effective in the treatment of these cases. In view of that, the present study describes a cas…

“Magnifying glass” for difficult radiocephalic arteriovenous fistulas

2012

Background: Some uremic patients suffering from diabetes, atherosclerosis or simple by absent or exhausted peripheral vascular bed require bigger effort in creating arteriovenous fistula. Although it is possible to use prosthetic graft for difficult cases, the use of native vessels falls always in the respect of patient’s quality of life. A help for these cases comes from the use of a microsurgical technique for creating vascular access. Patient and Methods: For this study we evaluated the 72 patients underwent microsurgical radiocephalic fistula comparing them to a homogeneous group of 72 patients underwent traditional surgery. The patients were followed up at 1, 2 months and 1 year. Resul…

Prone Position Facilitates Creation of Ulnar-Basilic Arteriovenous Fistula

2022

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. The procedure was performed and described in a 46-year-old patient with chronic kidney disease (CKD) due to diabetic nephropathy. In the period from September 2021 to December 2021, we created an additional…