The role of surgical thrombectomy of recently created radiocephalic arteriovenous fistulas in access salvage

Chirurgia ◽  
2021 ◽  
Vol 33 (6) ◽  
Author(s):  
Walid M. GAMAL ◽  
Abdrheem F. MOHAMED ◽  
Zeniab M. ASKARY
Keyword(s):  
Arteriovenous Fistulas ◽  
Surgical Thrombectomy

Percutaneous Superselective Coil-Embolization of Intrarenal Arteriovenous Fistulas

1996 ◽  
Vol 37 (3P2) ◽  
pp. 539-541 ◽  
Author(s):  
H. Husstedt ◽  
A. Chavan ◽  
F. Ghadban ◽  
A. Leppert ◽  
M. Galanski
Keyword(s):  
Coil Embolization ◽  
Av Fistula ◽  
Arteriovenous Fistulas ◽  
Percutaneous Catheter ◽  
Coil Occlusion ◽  
Av Fistulas ◽  
Small Parts

Purpose: To evaluate the role of percutaneous transcatheter coil-occlusion in the management of uncontrollable postoperative hematuria due to iatrogenic arteriovenous (AV) fistula. Material and Methods: In 2 patients, AV fistulas were occluded with percutaneous catheter-guided superselective coil embolization. Results: In both cases, occlusion of the AV fistulas was successful. Only small parts (less than 10%) of the parenchyma had to be sacrificed. No hypertension occurred. Conclusion: Percutaneous coil embolization is a useful alternative to surgery in cases of postoperative AV fistulas. Hematuria can be effectively controlled without resulting hypertension.

Post-catheterisation arterial thrombosis in children – pathophysiology, prevention, and treatment

2014 ◽  
Vol 24 (5) ◽  
pp. 767-773 ◽  
Author(s):  
João Silva Marques ◽  
Cristina Gonçalves
Keyword(s):  
Treatment Strategies ◽  
Current Evidence ◽  
Special Focus ◽  
Limb Ischaemia ◽  
Review Of The Literature ◽  
Access Site ◽  
Arterial Access ◽  
Significant Disability ◽  
Surgical Thrombectomy

AbstractLower limb ischaemia is the most frequent complication of cardiac catheterisation in children. It is often overlooked, but it can cause significant disability and may limit arterial access sites to repeat diagnostic or interventional catheterisations. A narrative review of the literature on arterial access site thrombosis in children was carried out with a special focus on current evidence that supports preventive and treatment strategies. Anticoagulation, thrombolysis, and thrombectomy have been used successfully to treat arterial access site thrombosis. However, it is not completely established which is the role of each treatment modality and what is the most appropriate timing to deliver it. Therefore, diagnostic and therapeutic strategies have to be prospectively investigated, particularly for clarifying the role of new pharmacologic interventions and of percutaneous and surgical thrombectomy in the current era.

Analysis of 855 Upper Extremity Fistulas Created Using a Standard Protocol: The Role of Graft Extension to Achieve Functional Status

2013 ◽  
Vol 79 (6) ◽  
pp. 625-629
Author(s):  
Bassan J. Allan ◽  
Enrique R. Perez ◽  
Marwan Tabbara
Keyword(s):  
Upper Extremity ◽  
Chronic Hemodialysis ◽  
Standard Protocol ◽  
Hemodialysis Access ◽  
Arteriovenous Fistulas ◽  
Excellent Method ◽  
The Creation ◽  
National Programs ◽  
Current Guidelines

The Fistula First Breakthrough Initiative (FFBI) has been one of the most important national programs to help achieve considerable improvements in the care of patients on chronic hemodialysis. FFBI has helped place guidelines to push practitioners to reduce the use of tunneled central venous catheters and to increase the rate of arteriovenous fistula use in patients requiring chronic hemodialysis access. However, despite current guidelines, no specific protocols exist for the creation and management of autogenous arteriovenous fistulas and outcomes at most centers are below national benchmarks. In this study, we examine the effectiveness of a standard protocol used at our institution for the creation of autogenous upper extremity fistulas for hemodialysis access in achieving early cannulation and early removal of tunneled dialysis catheters. Our review encompasses 855 consecutive autogenous fistulas created over a 10-year period. Our findings suggest that the use of a standard protocol for creation and management of autogenous fistulas can help increase the rate of functional accesses over national benchmarks. Additionally, extension/conversion of malfunctioning fistulas to grafts appears to be an excellent method to expedite removal of a tunneled dialysis catheter with concomitant preservation of a fistula.

Evolving Role of Digital Subtraction Angiography in Neurosurgical Practice

Neurosurgery ◽  
1982 ◽  
Vol 11 (3) ◽  
pp. 430-438 ◽  
Author(s):  
Thomas A. Duff ◽  
Patrick A. Turski ◽  
Joseph F. Sackett ◽  
Charles M. Strother ◽  
Andrew B. Crummy
Keyword(s):  
Digital Subtraction Angiography ◽  
Digital Processing ◽  
Initial Assessment ◽  
Digital Subtraction ◽  
Arteriovenous Fistulas ◽  
Pathological Conditions ◽  
Vascular Bypass ◽  
Intracranial Vasculature

Abstract Advances in digital subtraction angiography (DSA) have allowed the evaluation of a number of pathological conditions involving the extra-and intracranial vasculature. In addition to its role in diagnosis. DSA has been used for the postoperative assessment of endarterectomy, aneurysm clipping, and vascular bypass and for the follow-up of arteriovenous fistulas or malformations. This paper describes the theory and anticipated improvements in the digital processing of radiological information and presents our initial assessment of its clinical utility.

Spinal epidural arteriovenous fistula with perimedullary drainage

2006 ◽  
Vol 5 (4) ◽  
pp. 353-358 ◽  
Author(s):  
Timo Krings ◽  
Michael Mull ◽  
Azize Bostroem ◽  
Juergen Otto ◽  
Franz J. Hans ◽  
...  
Keyword(s):  
Venous Congestion ◽  
Resonance Imaging ◽  
Rare Type ◽  
Arteriovenous Fistulas ◽  
Arteriovenous Shunts ◽  
Dural Arteriovenous Fistulas ◽  
Complete Obliteration ◽  
Spinal Dural Arteriovenous Fistulas ◽  
Spinal Epidural

✓ The classic angiographically demonstrated features of spinal dural arteriovenous fistulas are shunts of radiculomeningeal branches with radicular veins draining exclusively in the direction of perimedullary veins and thereby causing venous congestion. These shunts are located at the point where the radicular vein passes the dura mater. Spinal epidural arteriovenous shunts, however, normally do not drain into the perimedullary veins and are, therefore, asymptomatic, presumably because of a postulated reflux-impeding mechanism between the dural sleeves. The authors report on a patient in whom an epidural arteriovenous shunt showed delayed retrograde drainage into perimedullary veins, leading to the classic clinical (and magnetic resonance imaging–based) findings of venous congestion. Intraoperatively the angiographically established diagnosis was confirmed. Coagulation of both the epidural shunt zone and the radicular vein resulted in complete obliteration of the fistula, as confirmed on repeated angiography. This rare type of fistula should stimulate considerations on the role of valvelike mechanisms normally impeding retrograde flow from the epidural plexus to perimedullary veins and suggest that, in certain pathological circumstances, epidural fistulas can drain retrogradely into perimedullary veins as an infrequent variant of spinal arteriovenous shunts.

Possible Role of Local Hypoxia in the De Novo Formation of Dural and Osteodural Arteriovenous Fistulas after Encephalitis

2008 ◽  
Vol 21 (5) ◽  
pp. 698-703 ◽  
Author(s):  
Y. Iizuka ◽  
Y. Yamashiro ◽  
M. Suzuki ◽  
Y. Sumi ◽  
H. Oizumi ◽  
...  
Keyword(s):  
Rare Case ◽  
De Novo ◽  
Initial Step ◽  
Tissue Hypoxia ◽  
Local Tissue ◽  
Arteriovenous Fistulas ◽  
Sprouting Angiogenesis ◽  
Dural Arteriovenous Fistulas

A rare case of de novo formation of dural and osteodural arteriovenous fistulas after encephalitis is presented. We review and discuss the etiological angiogenetic factors and processes in intracranial dural arteriovenous fistulas formation. Local tissue hypoxia may have played a role in the initial step causing sprouting angiogenesis as the main pathogenesis of DAVFs formation.

scholarly journals Comparison of pharmacomechanical and surgical interventions for thrombosed native arteriovenous fistulas

2020 ◽  
Vol 28 (4) ◽  
pp. 609-614
Author(s):  
Ebuzer Aydın
Keyword(s):  
Treatment Group ◽  
Arteriovenous Fistula ◽  
Failure Rate ◽  
Patency Rate ◽  
Primary Patency ◽  
Primary Patency Rate ◽  
Surgical Interventions ◽  
Arteriovenous Fistulas ◽  
Surgical Thrombectomy ◽  
Surgical Group

Background: This study aims to compare success and patency rates of pharmacomechanical thrombectomy versus open surgical thrombectomy for thrombosed native arteriovenous fistulas. Methods: A total of 96 patients (56 males, 40 females; mean age 61±11.7 years; range, 26 to 82 years) with a thrombosed native arteriovenous fistula between January 2016 and December 2018 were retrospectively analyzed. The patients were divided into two groups as pharmacomechanical thrombectomy (n=42) and open surgical thrombectomy (n=54). Primary failure rate and primary patency rate at 6 and 12 months were recorded. Results: Of 42 patients in the pharmacomechanical thrombectomy group, 41 (98%) had additional interventions, and primary failure occurred in four patients (10%). Primary failure was seen in 15 (28%) patients in the surgical group. The primary patency rates at 6 and 12 months were significantly higher in the pharmacomechanical treatment group than the surgical group (85% vs. 67% and 78% vs. 55%, respectively; p<0.05). Conclusion: Pharmacomechanical thrombectomy procedure yields higher primary patency rates than open surgical thrombectomy for thrombosed native arteriovenous fistula.

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