Presentation and outcomes of patients with thoracic and lumbosacral spinal epidural arteriovenous fistulas: a systematic review and meta-analysis

2018 ◽  
Vol 11 (1) ◽  
pp. 95-98 ◽  
Author(s):  
Jun-Soo Byun ◽  
Anderson Chun On Tsang ◽  
Christopher Alan Hilditch ◽  
Patrick Nicholson ◽  
Yi-Bin Fang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Clinical Symptoms ◽  
Combined Treatment ◽  
Venous Drainage ◽  
Treatment Modalities ◽  
Lumbosacral Spine ◽  
Spinal Vascular Malformation ◽  
Arteriovenous Fistulas ◽  
Presenting Symptoms ◽  
Spinal Epidural

Background and purposeThoracolumbar and sacral spinal epidural arteriovenous fistulas (SEDAVFs) are an increasingly recognized form of spinal vascular malformation. The purpose of this study was to perform a systematic review of the demographics, clinical presentation and treatment results of thoracolumbar SEDAVFs.Materials and methodsPubmed, Scopus and Web of Science databases were searched from January 2000 to January 2018 for articles on treatment of SEDAVFs. Pooled data of individual patients were analyzed for demographic and clinical features of SEDAVFs as well as treatment outcomes.ResultsThere were 125 patients from 11 studies included. Mean age was 63.5 years. There was a male sex predilection (69.6%). Sensory symptoms including pain or numbness were the most frequently presenting symptoms. Fistula location was the lumbosacral spine in 79.2% and the thoracic spine in 20.8%. Involvement of intradural venous drainage was more common than extradural venous drainage only (89.6% vs 10.4%). Of the 123 treated patients, endovascular therapy was performed in 67.5% of patients, microsurgery in 23.6%, and combined treatment in 8.9%. The overall complete obliteration rate was 83.5% and did not differ between groups. Clinical symptoms improved in 70.7% of patients, were stable in 25%, and worsened in 1.7% with no difference between treatment modalities.ConclusionsThoracic and lumbosacral SEDAVFs often present with symptoms secondary to congestive myelopathy or compressive symptoms. Both endovascular and microsurgical treatments were associated with high obliteration rates and good clinical outcomes.

Spinal epidural arteriovenous fistulas associated with progressive myelopathy

2007 ◽  
Vol 6 (6) ◽  
pp. 552-558 ◽  
Author(s):  
Nivaldo Silva ◽  
Anne Christine Januel ◽  
Philippe Tall ◽  
Christophe Cognard
Keyword(s):  
Magnetic Resonance Imaging ◽  
Therapeutic Strategy ◽  
Clinical Symptoms ◽  
Venous Drainage ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Arterial Access ◽  
Arteriovenous Fistulas ◽  
Progressive Myelopathy ◽  
Spinal Epidural

✓The authors report the cases of four patients who presented with progressive myelopathy (one patient had been asymptomatic for 25 years) due to spinal epidural arteriovenous fistulas (AVFs). Clinical symptoms and magnetic resonance imaging findings were similar to those of dural AVFs. In contrast to dural AVFs, angiography showed that the lesions were fed by multiple vessels and drained in one case in multiple veins. Perimedullary venous drainage was visible in three of the four cases. All fistulas were cured by embolization; arterial access was used in two cases and venous in two. The authors' aim in this paper is to emphasize the differences between dural and epidural AVFs in terms of their physiopathology and angioarchitecture as well as the therapeutic strategy.

Spinal epidural arteriovenous fistulas

2016 ◽  
Vol 8 (12) ◽  
pp. 1305-1310 ◽  
Author(s):  
Waleed Brinjikji ◽  
Rong Yin ◽  
Deena M Nasr ◽  
Giuseppe Lanzino
Keyword(s):  
Epidural Space ◽  
Treatment Options ◽  
Clinical Manifestations ◽  
Venous Drainage ◽  
Current Treatment ◽  
Endovascular Embolization ◽  
Treatment Modalities ◽  
Arteriovenous Fistulas ◽  
Drainage Patterns ◽  
Spinal Epidural

Spinal epidural arteriovenous fistulas (SEDAVFs) are rare complex lesions often presenting with protean clinical manifestations secondary to compressive symptoms or congestive myelopathy. The imaging manifestations of SEDAVFs on MR angiography/MRI include high T2 signal in the spinal cord, vascular engorgement of the epidural space, and prominent intradural vascular flow voids. Given the complexity of these lesions, they are best characterized anatomically on catheter angiography where careful inspection of arterial feeders and venous drainage patterns can be performed. The imaging hallmark of an SEDAVF on angiography is the presence of a dilated epidural venous pouch through which spinal and paraspinal veins are secondarily opacified. In the lower thoracic and lumbar spine, SEDAVFs are usually located in the ventral epidural space and fed mainly by the anteriorly coursing epidural arteries. In the cervical and upper thoracic spine, SEDAVFs and their feeding arteries are more typically located laterally in the spinal canal. Current treatment options include transarterial or transvenous endovascular embolization with liquid embolic agents or coils, and surgical resection/disconnection of the fistula. Further research is needed to better characterize how and why these lesions form and to identify the best treatment modalities.

scholarly journals Spinal Epidural Arteriovenous Fistula: A Unique Pathway into the Perimedullary Vein

2009 ◽  
Vol 15 (4) ◽  
pp. 466-469 ◽  
Author(s):  
S.M. Lim ◽  
I.S. Choi
Keyword(s):  
Epidural Space ◽  
Clinical Symptoms ◽  
Vascular Malformations ◽  
Venous Pressure ◽  
Venous Plexus ◽  
Previous Surgery ◽  
Arteriovenous Fistulas ◽  
Dural Arteriovenous Fistulas ◽  
Spinal Dural Arteriovenous Fistulas ◽  
Spinal Epidural

Spinal dural arteriovenous fistulas (AVFs) are rare vascular malformations in the spinal dura, fed by dural branches of the radicular arteries, and drain primarily into intradural venous plexuses. They may cause elevated medullary venous pressure and produce a progressive myelopathy. We describe a case of AVF in the epidural space of the previous surgery site of L3 and it showed a unique complex venous pathway into the perimedullary vein, leading to classic clinical symptoms of venous congestion in the spinal cord. The shunt was draining into bilateral epidural venous plexus and then to the paravertebral veins at the level of L2. The venous outflow entered to the epidural space again and finally refluxed into the intradural perimedullary vein.

Gamma Knife surgery for the management of intracranial dural arteriovenous fistulas

2006 ◽  
Vol 105 (Supplement) ◽  
pp. 43-51 ◽  
Author(s):  
Hsiu-Mei Wu ◽  
David Hung-Chi Pan ◽  
Wen-Yuh Chung ◽  
Wan-Yuo Guo ◽  
Kang-Du Liu ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Clinical Symptoms ◽  
Combined Treatment ◽  
Gamma Knife Surgery ◽  
Duration Of Symptoms ◽  
Cortical Vein ◽  
Arteriovenous Fistulas ◽  
Imaging Results ◽  
Dural Arteriovenous Fistulas

ObjectThe purpose of this study was to assess the efficacy and safety of Gamma Knife surgery (GKS) for the treatment of cavernous sinus dural arteriovenous fistulas (CSDAVFs) and other intracranial dural arteriovenous fistulas (ODAVFs).MethodsAmong the 238 GKS procedures performed for intracranial DAVFs in the authors' institute, 227 cases (146 CSDAVFs and 81 OIDAVFs) with clinical follow up formed the database from which the authors determined clinical outcome and the incidence of untoward events. One hundred ninety-five cases (118 CSDAVFs and 77 ODAVFs) with imaging follow up formed the database from which the authors determined the imaging results.Older age, female sex, higher incidence of diabetes, and shorter duration of symptoms were noted more in cases of CSDAVF than in ODAVFs. Most patients had symptomatic improvement after GKS. A symptomatic cure was observed in one patient with CSDAVFs as early as 6 weeks. The cumulative cure rate based on follow-up angiography of CSDAVFs approached 75% at 24 months, which was much better than that of ODAVFs (approximately 50% at 24 months). A neuroimaging-based cure lagged behind that of the clinical symptoms. Overall, there were only two nonfatal intracerebral hemorrhages during the follow-up period, both occurring less than 1 week after GKS and both being Cognard Type IIa+b with initial aggressive symptoms. Transient deterioration of neurological status without hemorrhage was noted in six patients with ODAVFs. Thrombosis of the superior ophthalmic vein occurred in 11 patients with CSDAVFs, in two of whom there were unilateral visual impairments. There were three cranial nerve neuropathies: transient in one CSDAVF and one ODAVF involving the jugular foramen, and another one was a CSDAVF previously treated by conventional radiotherapy.Conclusions Gamma Knife surgery provides a safe and effective option for treatment of intracranial DAVFs with a low risk of complications. In cases of DAVFs with benign clinical presentation, GKS can serve as a primary treatment. In some cases of aggressive DAVFs in which there is extensive retrograde cortical vein drainage, combined treatment with embolization or surgery is suggested.

scholarly journals Cranial dural arteriovenous fistulas: modification of angiographic classification scales based on new natural history data

2009 ◽  
Vol 26 (5) ◽  
pp. E14 ◽  
Author(s):  
Gregory J. Zipfel ◽  
Manish N. Shah ◽  
Daniel Refai ◽  
Ralph G. Dacey ◽  
Colin P. Derdeyn
Keyword(s):  
High Risk ◽  
Intracerebral Hemorrhage ◽  
Clinical Symptoms ◽  
Venous Drainage ◽  
Risk Groups ◽  
Neurological Deficits ◽  
Neurological Injury ◽  
Arteriovenous Fistulas ◽  
Dural Arteriovenous Fistulas ◽  
Cortical Venous Drainage

This article presents a modification to the existing classification scales of intracranial dural arteriovenous fistulas based on newly published research regarding the relationship of clinical symptoms and outcome. The 2 commonly used scales, the Borden-Shucart and Cognard scales, rely entirely on angiographic features for categorization. The most critical anatomical feature is the identification of cortical venous drainage (CVD; Borden-Shucart Types II and III and Cognard Types IIb, IIa + b, III, IV, and V), as this feature identifies lesions at high risk for future hemorrhage or ischemic neurological injury. Yet recent data has emerged indicating that within these high-risk groups, most of the risk for future injury is in the subgroup presenting with intracerebral hemorrhage or nonhemorrhagic neurological deficits. The authors have defined this subgroup as symptomatic CVD. Patients who present incidentally or with symptoms of pulsatile tinnitus or ophthalmological phenomena have a less aggressive clinical course. The authors have defined this subgroup as asymptomatic CVD. Based on recent data the annual rate of intracerebral hemorrhage is 7.4–7.6% for patients with symptomatic CVD compared with 1.4–1.5% for those with asymptomatic CVD. The addition of asymptomatic CVD or symptomatic CVD as modifiers to the Borden-Shucart and Cognard systems improves their accuracy for risk stratification of patients with high-grade dural arteriovenous fistulas.

Hemodynamic and metabolic disturbances in patients with intracranial dural arteriovenous fistulas: positron emission tomography evaluation before and after treatment

1997 ◽  
Vol 86 (5) ◽  
pp. 806-811 ◽  
Author(s):  
Toru Iwama ◽  
Nobuo Hashimoto ◽  
Yasushi Takagi ◽  
Michihiro Tanaka ◽  
Satoshi Yamamoto ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Clinical Symptoms ◽  
Venous Drainage ◽  
Cerebral Hemodynamics ◽  
Emission Tomography ◽  
Regional Cerebral Blood ◽  
Arteriovenous Fistulas ◽  
Positron Emission ◽  
Dural Arteriovenous Fistulas ◽  
Angiographic Findings

✓ In patients with intracranial dural arteriovenous fistulas (AVFs), clinical symptoms and angiographic findings vary. The relevance of disturbed venous drainage to clinical symptoms and prognosis has been recognized. However, the roles of cerebral hemodynamics and metabolism, which are impaired by shunt flow or disturbed venous drainage, have not been fully evaluated. The authors studied the cerebral hemodynamic and metabolic status in 10 patients with intracranial dural AVFs using positron emission tomography (PET) scanning. Ten patients with dural AVFs underwent a PET study before treatment. The regional cerebral blood flow (rCBF), regional oxygen extraction fraction (rOEF), regional cerebral metabolic rate of oxygen (rCMRO2), and regional cerebral blood volume (rCBV) were measured using the 15O-labeled gas inhalation steady-state method. The PET parameters that were obtained were analyzed and compared with the patients' neurological and angiographic findings. In six of the 10 patients, a PET study was also performed after treatment. Before treatments, all four patients with cerebral symptoms showed a severe reduction in rCBF and a mild elevation in the rOEF. The areas showing reduced rCBF corresponded with areas in which retrograde venous drainage into the cortical veins and delayed parenchymal circulation were seen on angiograms. In another two patients with occlusion of the affected sinus and/or retrograde drainage into the cortical veins, mild abnormalities were demonstrated in rCBF mapping. In the remaining four patients, all PET parameters except rCBV were within normal limits and venous flow was not impaired on the angiograms. In four patients who underwent surgical excision or transvenous embolization of the affected sinus, the cerebral hemodynamics and metabolism were improved, as were the clinical symptoms. In two patients who underwent transarterial embolization of the feeding vessels only or craniotomy, no hemodynamic improvement was achieved. Our results indicate that hemodynamic insufficiency detected by the PET study corresponded well with cerebral symptoms and angiographic findings of retrograde venous drainage into the cortical veins and delayed parenchymal circulation, but not with sinus occlusion or arterial blood supply. Eradication or prevention of retrograde venous drainage from the affected sinus into the cortical veins should be a treatment goal in patients with dural AVFs.

scholarly journals Transvenous Approach to Intracranial Dural Arteriovenous Fistula (Cognard V): A Treatment Option

2011 ◽  
Vol 17 (1) ◽  
pp. 108-114 ◽  
Author(s):  
S. Aixut Lorenzo ◽  
A. Tomasello Weitz ◽  
J. Blasco Andaluz ◽  
L. Sanroman Manzanera ◽  
J.M. Macho Fernández
Keyword(s):  
Endovascular Treatment ◽  
Clinical Symptoms ◽  
Venous Drainage ◽  
Complete Disappearance ◽  
Venous Flow ◽  
Arteriovenous Fistulas ◽  
Collateral Arteries ◽  
Dural Arteriovenous Fistulas ◽  
Type V ◽  
Transvenous Approach

The endovascular technique is the gold standard treatment in dural arteriovenous fistulas. Due to the limited number of series published it is difficult to create rigid guidelines in terms of the best endovascular treatment approach. Treatment must be tailored to each particular case, but it is important to keep in mind that the possibility of treating a type V dAVF by the transvenous approach should not be discarded. In selected cases the transvenous approach may be helpful to increase the chance of success in the endovascular treatment of type V dAVF. We describe a patient in whom the first arterial treatment failed to achieve occlusion of the fistulous point with the glue. Clinical symptoms improved due to the diminished flow at the fistula after the first embolization but as soon as collateral arteries were recruited by the fistula, spinal cord venous drainage impairment led to symptoms recurrence. Transvenous access allowed us to close the fistula completely in one only session with a complete disappearance of the pathologically inverted perimedullary venous flow.

scholarly journals Clinical presentation and treatment outcomes of spinal epidural arteriovenous fistulas

2017 ◽  
Vol 26 (5) ◽  
pp. 613-620 ◽  
Author(s):  
Deena M. Nasr ◽  
Waleed Brinjikji ◽  
Michelle J. Clarke ◽  
Giuseppe Lanzino
Keyword(s):  
Lower Extremity ◽  
Functional Status ◽  
Treatment Outcomes ◽  
Clinical Presentation ◽  
Type I ◽  
Duration Of Symptoms ◽  
Lower Extremity Weakness ◽  
Arteriovenous Fistulas ◽  
Presenting Symptoms ◽  
Spinal Epidural

OBJECTIVESpinal epidural arteriovenous fistulas (SEDAVFs) constitute a rare but treatable cause of vascular myelopathy and are a different subtype from the more common Type I spinal dural AVFs. The purpose of this study was to review a consecutive series of SEDAVFs from a single institution and report on the clinical presentations, functional status, and treatment outcomes.METHODSThe authors identified all SEDAVFs treated at their institution from 2005 to 2015. SEDAVFs were defined as spinal AVFs in which the fistulous connection occurred in the epidural venous plexus. The clinical presentation, functional status, immediate treatment outcomes, and long-term neurological outcomes were analyzed.RESULTSTwenty-four patients with SEDAVFs were included in this study. The patients' mean age at presentation was 66.9 years. The most common presenting symptoms were pain and numbness (22 patients, 91.7%), followed by lower-extremity weakness (21 patients, 87.5%). The mean duration of symptoms prior to diagnosis was 11.8 months. Eighteen patients (75.0%) were treated with endovascular therapy alone, 4 (16.7) with surgery, and 2 (8.3%) with a combination of techniques. There was 1 major treatment-related complication (4.2%). Fifteen patients (62.5%) had improvement in disability, and 12 patients (54.5%) had improvement in sensory symptoms.CONCLUSIONSSEDAVFs often present with lower-extremity motor dysfunction and sensory symptoms. With the availability of newer liquid embolic agents, these lesions can be effectively treated with endovascular techniques. Surgery is also effective at treating these lesions, especially in situations where endovascular embolization fails or is not safe and in patients presenting with mass effect from compressive varices.

scholarly journals Endovascular coil embolization of a spinal epidural arteriovenous fistula with associated cord compression from an enlarging venous varix

2015 ◽  
Vol 21 (6) ◽  
pp. 738-741 ◽  
Author(s):  
Dale Ding ◽  
Robert M Starke ◽  
David Manka ◽  
R Webster Crowley ◽  
Kenneth C Liu
Keyword(s):  
Coil Embolization ◽  
Venous Drainage ◽  
Cord Compression ◽  
Technical Note ◽  
Arteriovenous Fistulas ◽  
Endovascular Coil Embolization ◽  
The Right ◽  
Spinal Epidural ◽  
Venous Varix

Spinal arteriovenous fistulas (AVFs) completely isolated to the epidural compartment are exceedingly rare. As such, the optimal management of these lesions is poorly defined. The aim of this technical note is to describe our endovascular technique for the occlusion of a purely epidural AVF of the thoracic spine associated with cord compression from an associated enlarging venous varix. A 40-year-old male presented with severe right-sided back pain and anterior thigh numbness after a sports-related back injury six months previously. Spinal magnetic resonance imaging (MRI) showed an enhancing, extradural mass lesion at T12. Spinal angiography revealed an epidural AVF supplied by a radicular branch of the right T12 subcostal artery and draining into the paravertebral lumbar veins, as well as an adjacent 20 × 13 mm2 contrast-filling sac, compatible with a dilated venous varix. There was no evidence of intradural venous drainage. We elected to proceed with endovascular treatment of the lesion. At the time of embolization five days later, the venous varix had enlarged to 26 × 16 mm2. The T12 epidural AVF was completely occluded with two coils, without residual or recurrent AVF on follow-up angiography one month later. The patient made a full recovery, and complete resolution of the venous varix and cord compression were noted on MRI at three months follow-up. Endovascular coil embolization can be successfully employed for the treatment of appropriately selected spinal epidural AVFs. Cord compression from an enlarging venous varix can be treated concurrently with endovascular occlusion of an associated spinal epidural AVF.

scholarly journals Microsurgical versus endovascular treatment of spinal epidural arteriovenous fistulas with intradural venous drainage: a multicenter study of 81 patients

2020 ◽  
Vol 33 (3) ◽  
pp. 381-391 ◽  
Author(s):  
Keisuke Takai ◽  
Toshiki Endo ◽  
Takao Yasuhara ◽  
Toshitaka Seki ◽  
Kei Watanabe ◽  
...  
Keyword(s):  
Treatment Failure ◽  
Endovascular Treatment ◽  
Failure Rate ◽  
Initial Treatment ◽  
Venous Drainage ◽  
Type I ◽  
Arteriovenous Fistulas ◽  
Multicenter Cohort ◽  
Treatment Failure Rate ◽  
Spinal Epidural

OBJECTIVESpinal arteriovenous shunts are rare vascular lesions and are classified into 4 types (types I–IV). Due to rapid advances in neuroimaging, spinal epidural AVFs (edAVFs), which are similar to type I spinal dural AVFs (dAVFs), have recently been increasingly reported. These 2 entities have several important differences that influence the treatment strategy selected. The purposes of the present study were to compare angiographic and clinical differences between edAVFs and dAVFs and to provide treatment strategies for edAVFs based on a multicenter cohort.METHODSA total of 280 consecutive patients with thoracic and lumbosacral spinal dural arteriovenous fistulas (dAVFs) and edAVFs with intradural venous drainage were collected from 19 centers. After angiographic and clinical comparisons, the treatment failure rate by procedure, risk factors for treatment failure, and neurological outcomes were statistically analyzed in edAVF cases.RESULTSFinal diagnoses after an angiographic review included 199 dAVFs and 81 edAVFs. At individual centers, 29 patients (36%) with edAVFs were misdiagnosed with dAVFs. Spinal edAVFs were commonly fed by multiple feeding arteries (54%) shunted into a single or multiple intradural vein(s) (91% and 9%) through a dilated epidural venous plexus. Preoperative modified Rankin Scale (mRS) and Aminoff-Logue gait and micturition grades were worse in patients with edAVFs than in those with dAVFs. Among the microsurgical (n = 42), endovascular (n = 36), and combined (n = 3) treatment groups of edAVFs, the treatment failure rate was significantly higher in the index endovascular treatment group (7.5%, 31%, and 0%, respectively). Endovascular treatment was found to be associated with significantly higher odds of initial treatment failure (OR 5.72, 95% CI 1.45–22.6). In edAVFs, the independent risk factor for treatment failure after microsurgery was the number of intradural draining veins (OR 17.9, 95% CI 1.56–207), while that for treatment failure after the endovascular treatment was the number of feeders (OR 4.11, 95% CI 1.23–13.8). Postoperatively, mRS score and Aminoff-Logue gait and micturition grades significantly improved in edAVFs with a median follow-up of 31 months.CONCLUSIONSSpinal epidural AVFs with intradural venous drainage are a distinct entity and may be classified as type V spinal vascular malformations. Based on the largest multicenter cohort, this study showed that primary microsurgery was superior to endovascular treatment for initial treatment success in patients with spinal edAVFs.

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