A case of pediatric paraspinal arteriovenous fistula with multiple fistulas.
Authors: Sato S, Niimi Y, Shima S, Moteki Y, Inoue T, Kuwamoto K, Okada Y Abstract Paraspinal arteriovenous fistula (AVF) is a rare vascular malformation. This is the first described case of a pediatric paraspinal AVF along nonvertebral segmental nerve with multiple fistulas. An 8 months-old girl was found to have a continuous murmur on the back on chest auscultation. Enhanced computed tomography revealed a segmental nerve AVF of the right thoracic spine. Selective angiography of the right T8 and T9 intercostal arteries demonstrated a high flow fistula at the level of the neural foramen, with drainage to the...
Source: Interventional Neuroradiology - September 19, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Distal radial artery (snuffbox) access for carotid artery stenting - Technical pearls and procedural set-up.
CONCLUSION: Our preliminary experience with dRA access for CAS suggests this approach to be feasible and safe for patients. Technical considerations are important and preprocedural planning is necessary for a successful intervention. Catheter systems and devices specifically designed for radial access are needed to enable more interventionalists to safely perform neurointerventional procedures via wrist access. PMID: 32924692 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - September 17, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Long-term follow-up results of the SMART coil in the endovascular treatment of intracranial aneurysms.
CONCLUSIONS: The Penumbra SMART coil is safe and effective for the endovascular treatment of appropriately selected IAs. Additional studies at multiple centers comparing safety and efficacy profile over long-term periods to other mainstream coils are necessary. PMID: 32931373 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - September 17, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Endovascular treatment of pediatric ischemic stroke: A single center experience and review of the literature.
We report our single-center experience with thrombectomy of LVO in a series of pediatric patients, and perform a review of the literature. METHODS: Retrospective review of consecutive pediatric thrombectomy cases between 2011 and 2018. Demographic variables, imaging data, technical aspects and clinical outcome were recorded. RESULTS: In a period of 7 years, 7 children were treated for LVO at our center. Median age was 13 (2-17), and median Ped-NIHSS was 15 (3-24), and the median ASPECTS was 8 (2-10). Five patients had cardiac disease, and 2 of them were under external cardiac assistance. Median time from ons...
Source: Interventional Neuroradiology - September 10, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Breaking the breach in Latin America: A pilot study of mechanical thrombectomy in the public healthcare system in Chile.
Authors: Rivera R, Amudio C, Brunetti E, Catalan P, Sordo JG, Badilla L, Echeverria D, Cruz JP, Ojeda H, Bravo L, Bravo F, Gonzalez W, Orellana ML, Pinto C, Merino-Osorio C, Oportus M, Salazar A, Nogueira RG Abstract BACKGROUND: Mechanical Thrombectomy (MT) is the standard of care for treatment of large vessel occlusion stroke. Until the beginning of 2020 MT was not funded nor widely implemented at the public healthcare level in Chile. OBJECTIVE: To describe the results of a pilot program created to provide access to public MT in Santiago - Chile. METHODS: Analysis from a prospectively collected database of...
Source: Interventional Neuroradiology - September 5, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Delayed mesencephalic venous infarction after endovascular treatment of a giant aneurysm of the posterior cerebral artery: Case report and anatomical review.
Authors: Kadooka K, Anagnostakou V, Bozinov O, Kulcsár Z Abstract A 54-year old male patient underwent stent reconstruction of the P1-2 segment of the left posterior cerebral artery (PCA) and concomitant coil embolization of a symptomatic giant partially thrombosed P1 segment aneurysm. After an uneventful postinterventional period, on the 7th day the patient developed severe disturbance of consciousness. The imaging workup demonstrated acute venous infarction in the midbrain, caused by the compressive occlusion of the median anterior pontomesncephalic vein by the aneurysm in the interpeduncular fossa. PM...
Source: Interventional Neuroradiology - September 5, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Hemorrhagic risk factors of endovascular onyx embolization of intracranial dural arteriovenous fistulas.
CONCLUSIONS: Hemorrhagic complications associated with endovascular DAVF embolization are not negligible. The pial arterial supplier, giant venous aneurysm and higher Onyx volume in one session may be risk factors for endovascular DAVF embolization. PMID: 32878519 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - September 5, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Predictors of mortality for patients with COVID-19 and large vessel occlusion.
CONCLUSION: Patients with COVID-19 and ELVO had a significantly higher risk for mortality compared to COVID-19 negative patients with ELVO. A small percentage of COVID-19 ELVO patients had good outcomes. Age greater than 60 and pulmonary symptoms at presentation have higher risk for mortality. Other risk factors for mortality were a history of cigarette smoking, elevated, failure to recanalize, elevated d-dimer and ferritin levels. PMID: 32862753 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - September 2, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Contralateral approach to transverse-sigmoid sinus stenting.
CONCLUSIONS: This case series demonstrates successful transverse-sigmoid sinus stenting from the contralateral dural sinus and provides an alternative approach to DVSS in patients with IIH. PMID: 32862754 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - September 2, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Endovascular treatment for the flow-related aneurysm originating from an anterior inferior cerebellar artery supplying the cerebellar arteriovenous malformation.
CONCLUSION: For the flow-related aneurysm originating from an AICA supplying the cerebellar AVM, the EVT depends on the specific circumstances. When the aneurysm is located at the a1 segment, coiling of the aneurysm with preservation of the parent AICA should be performed. PAO is the last resort. When the a2 aneurysm is proximal to the internal auditory artery, coiling of the aneurysm with preservation of the AICA is preferred. When the aneurysm is distal to the internal auditory artery, PAO can be safely performed. PMID: 32842831 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 28, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Solitaire AB stent-angioplasty for stenoses in perforator rich segments: A single-center experience.
CONCLUSIONS: Our study indicates the off-label use of Solitaire AB for stenting is effective and safe for MCA and BA stenoses with high technical success and low complications. We recommend that lesion-specific therapy with an anatomically fitted stent design enables optimal treatment for intracranial stenosis. PMID: 32842832 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 28, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Endovascular treatment of cerebral dural arteriovenous fistulas with SQUID 12.
CONCLUSIONS: The treatment of the cDAVFs using SQUID 12 was effective and safe. The lower viscosity seems to allow an easier penetration of the agent with a high rate of complete occlusion of the cDAVFs. PMID: 32842833 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 28, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Early experience utilizing artificial intelligence shows significant reduction in transfer times and length of stay in a hub and spoke model.
CONCLUSIONS: The incorporation of AI software was associated with an improvement in transfer times for LVO patients as well as a reduction in the overall hospital LOS and LOS in the neurological-ICU. More extensive studies are warranted to expand on the ability of AI technology to improve transfer times and outcomes for LVO patients. PMID: 32847449 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 28, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Radial artery neuro guide catheter entrapment during mechanical thrombectomy for acute ischemic stroke: Rescue brachial plexus block.
We describe a modified step-wise approach to previously published online article by Pitta et al. from 2017 SCAI communication in the management of catheter entrapment and describe the technique for ultrasound guided brachial plexus block, which helped avoid need for surgical removal. PMID: 32830565 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 26, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Hemodynamic differences by increasing low profile visualized intraluminal support (LVIS) stent local compaction across intracranial aneurysm orifice.
CONCLUSIONS: The combined characteristics of stent metal coverage and pore density should be considered when assessing the flow diversion effects of stents. More intra-aneurysmal flow reductions could be introduced by compacted LVIS stent than the uniform one. Compared with PED, compacted LVIS stent may exhibit a flow-diverting effect comparable to that of the PED. PMID: 32830566 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 26, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Cavernous carotid artery large aneurysm treated with a new flow diverter - Xcalibur aneurysm occlusion device (AOD).
We report a case of an unruptured, symptomatic, large right cavernous internal carotid artery aneurysm successfully treated with a new balloon-expandable flow diverter - Xcalibur Aneurysm Occlusion Device (AOD). Follow up imaging performed at six months demonstrated complete exclusion of the aneurysm and regression in dimensions, resulting in resolution of mass effect and clinical improvement. PMID: 32811244 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 21, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Basilar artery origin of an orbital artery - A rare variant and review of the embryology of the orbital arterial supply.
We present a patient with separation of the arterial supply to the globe and the extra-ocular muscles. The ophthalmic artery originates from the typical adult location and supplies only the globe. Arising from the basilar artery was a branch that supplies the extra-ocular muscles. There was no apparent connection between these vessels around the optic nerve and no evidence of supply from the external carotid artery. We discuss the embryology of the ophthalmic artery from the point of view of Padget and Lasjaunias and offer our opinion on the on-going controversy. We believe this is the first case to highlight the trigemina...
Source: Interventional Neuroradiology - August 18, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Validation and comparison of drug eluting stent to bare metal stent for restenosis rates following vertebral artery ostium stenting: A single-center real-world study.
This study analyzed a single-center prospective cohort. Over 1.5-year period (January 2014-June 2015), 137 consecutive patients underwent VAO stenting involving deployment of 76 DES and 74 BMS. Patient demographics, comorbidities, stenosis severity, stent diameters and lengths, periprocedural complications, imaging and duplex ultrasonography follow-up and recurrent symptoms were assessed. RESULTS: Technical success was achieved in all patients. Mean VAO stenosis at presentation were 82.4 ± 7.2% in the DES group and 83.3 ± 7.5% in the BMS group and were reduced to 12.5 &p...
Source: Interventional Neuroradiology - August 18, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Flow diverter stents with hydrophilic polymer coating for the treatment of acutely ruptured aneurysms using single antiplatelet therapy: Preliminary experience.
CONCLUSION: In our experience, FDS HPC appears a potential treatment option in selected cases. Our study is limited by small population and short-term follow-up. We report our preliminary data, but further investigations are necessary. PMID: 32799747 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 18, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

A symptomatic atherosclerotic persistent pharyngo-hyo-stapedial artery: Treatment management and embryological considerations.
We reported a case of a 61-year-old woman presented with transient ischemic attacks (TIAs). Computed tomography angiography showed an unusual "duplicated" aspect of the left ICA. Digital subtraction angiography depicted a persistent pharyngo-hyo-stapedial artery with an atherosclerotic wall and was considered the cause of the TIAs. After failure of the antiplatelet therapy in preventing recurrent TIAs, stenting of the artery was planned and successfully performed. Patient was asymptomatic during 12-month follow-up. The pharyngo-hyo-stapedial artery is a very rare variation in which the SA is supplied by the infer...
Source: Interventional Neuroradiology - August 13, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Idiopathic intracranial hypertension with stenosis of a solitary occipital venous sinus treated with stenting.
Authors: Al Balushi A, Oliveira C, Patsalides A Abstract A 47-year-old live kidney-donor woman presented with headaches and blurred vision. Neuro-ophthalmological examination demonstrated papilledema and right eye inferior nasal defect. Brain MRV showed no sinus thrombosis but solitary right venous sinus draining the torcular Herophili to right jugular bulb. Lumbar puncture revealed elevated CSF opening pressure of 40 cm H2O with normal composition. She was diagnosed with idiopathic intracranial hypertension (IIH). She did not tolerate medical management and declined CSF diversion surgery. Cerebral angiograp...
Source: Interventional Neuroradiology - August 13, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

The safety and efficacy of staged angioplasty for treating carotid stenosis with a high risk of hyperperfusion: A single-center retrospective study.
CONCLUSION: This research suggests that SAP appears to be an effective method to prevent HPS for patients with a high risk of HPS. PMID: 32772622 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 13, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Reduction of radiation exposure using low pulse rate fluoroscopy during neuroendovascular surgery.
Authors: Shimizu T, Toyota S, Nakagawa K, Murakami T, Kumagai T, Mori K, Taki T Abstract INTRODUCTION: Endovascular surgery is minimally invasive, but the radiation exposure can be problematic. There is no report assessing whether radiation exposure can be reduced by using a low pulse rate during carotid artery stenting (CAS). The aim of this study was to evaluate whether reducing the pulse rate from 7.5 to 4 frames per second (f/s) can reduce the radiation exposure while maintaining safety during CAS procedure. METHODS: We retrospectively reviewed the radiation data and clinical features of all 100 patients wh...
Source: Interventional Neuroradiology - August 13, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Direct angioplasty for acute ischemic stroke due to intracranial atherosclerotic stenosis-related large vessel occlusion.
CONCLUSION: Direct angioplasty may represent an alternative treatment strategy in patients with acute ischemic stroke due to known ICAS-related LVO. PMID: 32777960 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 13, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Safety of stent-assisted coiling for the treatment of wide-necked ruptured aneurysm: A systematic literature review and meta-analysis of prevalence.
CONCLUSION: Stent-assisted coiling of ruptured intracranial aneurysm is a technically feasible procedure with controlled thromboembolic complication rate but may be associated with higher hemorrhagic and total complication rates compared to coiling alone. While stent-assisted coiling of ruptured wide-necked aneurysm seems to yield a lower rate of favorable clinical outcome, overall mortality is comparable to that of endovascular coiling alone. PMID: 32741229 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - August 4, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Endovascular treatment of complex middle cerebral artery aneurysms using TuBridge flow diverters.
CONCLUSION: Midterm results suggest that endovascular treatment of middle cerebral artery aneurysms using the TuBridge flow diverter is safe and associated with good outcomes. The TuBridge flow diverter may be an option for complex middle cerebral artery aneurysms that are difficult to treat with either clipping or coiling. PMID: 32722987 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 31, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Treatment of cerebral vasospasm secondary to subarachnoid hemorrhage utilizing the Comaneci device.
This report highlights the use of the Comaneci (Rapid Medical, Yokneam, Israel), a device FDA approved for temporary coil embolization assistance, for the treatment of symptomatic vasospasm. Ten days post subarachnoid hemorrhage, a patient developed acute left-sided hemiparesis with angiographic vasospasm. Through a Headway 17 microcatheter, a Comaneci 17 was deployed in the right ICA terminus, M1, M2, A1, and, A2 segments resulting in improvement of angiographic vasospasm and the patient's left-sided hemiparesis. On the following day, a repeat angiogram demonstrated no recurrence of vasospasm. The patient had complete ret...
Source: Interventional Neuroradiology - July 31, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Persistent second cervical intersegmental artery in a case of possible PHACE syndrome.
This report describes a patient with multiple arterial variations including right persistent second cervical intersegmental artery of common carotid origin, distal VA duplication, circumflex aortic arch, and segmental internal carotid agenesis in a context of possible PHACE syndrome. PMID: 32726171 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 31, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Impact and prevention of errors in endovascular treatment of unruptured intracranial aneurysms.
CONCLUSION: Neurointerventionalists perceived both technical and cognitive errors to be important sources of complications in endovascular UIA treatment. Simulation training, a cultural change, higher acceptance of bail-out strategies and better standardization of procedures were perceived to be most effective in preventing these. PMID: 32727309 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 31, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Outcome of flow diverter placement for intracranial aneurysm with dual antiplatelet therapy and oral anticoagulant therapy.
CONCLUSIONS: Additional oral anticoagulant administration before flow diverter placement does not reduce ischemic complications compared to dual antiplatelet therapy, but does increase hemorrhagic complications, especially delayed aneurysm rupture. Complete obliteration of the cerebral aneurysm is difficult to achieve in patients taking anticoagulants. PMID: 32727310 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 31, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Mechanical thrombectomy using the new Tigertriever in acute ischemic stroke patients - A Swiss prospective multicenter study.
CONCLUSION: This study demonstrated feasibility, safety and effectiveness of the Tigertriever in AIS patients with LVO with a high reperfusion rate. PMID: 32720822 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 30, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Utilization of the large-bore Penumbra JET 7 reperfusion catheter in thrombectomy for acute ischemic stroke: A single-center experience.
CONCLUSION: The use of the Penumbra JET 7 reperfusion catheter for treatment of acute ischemic stroke was observed to be safe and effective with appropriate revascularization outcomes in different thrombectomy techniques. PMID: 32693662 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 24, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Intracranial venous malformations: Incidence and characterization in a large pediatric cohort.
CONCLUSION: Venous malformations, both extracranial and icVM, share many characteristics that are distinct from developmental venous anomalies. icVM were not associated with venous hypertension. The underlying genetic mutations involved in the development of icVM, germ-line or somatic, remain to be elucidated, but may very well involve shared mechanisms and pathways with extracranial venous malformations. PMID: 32689840 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 22, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Management of incidental unruptured intracranial aneurysms: About intuitive heuristics and the challenge of dealing with uncertainty.
Authors: Goyal M, Ospel JM PMID: 32677490 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 18, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Arteriovenous fistulas of the Vein of Galen region in adults: Endovascular treatment.
CONCLUSION: Arteriovenous fistulas of the Vein of Galen region in adults present uniform angioarchitecture despite their low prevalence. Based on this constant angioarchitecture and especially on the features of its venous drainage, judicious embolization strategy is feasible and effective. Ten cases treated entirely by endovascular approach with excellent clinical and angiographic outcomes show this treatment like a curative alternative for this entity of deep topography and severe prognosis. PMID: 32664774 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 17, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

The antireflux mechanism - Angiographic anatomy and clinical implications.
CONCLUSIONS: The antireflux mechanism includes at least a tight narrowing of the radiculomedullary vein, which likely influences the development and clinical expression of low-flow spinal arteriovenous fistulas and might impact the spinal venous drainage even in the absence of arteriovenous shunts. PMID: 32664775 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 17, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Predictive value on diffusion weighted imaging scores for basilar artery occlusion after endovascular treatment.
CONCLUSIONS: Renard diffusion weighted imaging score may be an independent predictor of functional outcome in basilar artery occlusion patients after endovascular treatment. PMID: 32640857 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 11, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Initial experience with the novel p64MW HPC flow diverter from a cohort study in unruptured anterior circulation aneurysms under dual antiplatelet medication.
CONCLUSION: p64MW HPC implantation in patients under dual antiplatelet therapy with or without dual platelet function inhibition has a low procedural complication rate. The early aneurysm occlusion rate is high. PMID: 32640858 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 11, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

De novo intracranial arteriovenous malformation development after endovascular treatment for a pial arteriovenous fistula in capillary malformation-arteriovenous malformation syndrome.
Authors: Ryu B, Sato S, Mochizuki T, Inoue T, Okada Y, Niimi Y Abstract Capillary malformation-arteriovenous malformation (CM-AVM) syndrome is a newly described entity characterized by autosomal dominantly inherited multifocal capillary malformations caused by RASA1 mutations (CM-AVM1) or EPHB4 mutations (CM-AVM2). Concurrent high-flow vascular anomalies in the brain are often present in the form of intracranial AVM or arteriovenous fistula (AVF). These high-flow lesions are often identified at or soon after birth because of the characteristic unique capillary malformations or a systemic disorder due to a high-flow...
Source: Interventional Neuroradiology - July 10, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Efficacy and safety of PulseRider for treatment of wide-necked intracranial aneurysm-A systematic review and meta-analysis.
CONCLUSIONS: PulseRider-assisted coiling for treatment of patients with wide-necked aneurysm reached 90% adequate occlusion rate that rises up to 91% at sixth month with 5% complication rate. PMID: 32635777 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 10, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Transradial access for flow diversion of intracranial aneurysms: Case series.
CONCLUSION: This study demonstrates safety and feasibility of transradial access for Pipeline embolization device deployment and shows the versatility of this approach for different catheter systems. Tortuosity and acute angulation of the left common carotid artery and internal carotid artery were associated with approach failure. PMID: 32623930 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 8, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Corrigendum to Yeo LL, Andersson T, Holmberg Å, et al. Posterior communicating and anterior communicating arteries on pre-thrombectomy computed tomography scans are associated with good outcomes irrespective of leptomeningeal collateral status. Interv Neuroradiol 2019; 25(4): 364-370. DOI: 10.1177/1591019919831215.
Corrigendum to Yeo LL, Andersson T, Holmberg Å, et al. Posterior communicating and anterior communicating arteries on pre-thrombectomy computed tomography scans are associated with good outcomes irrespective of leptomeningeal collateral status. Interv Neuroradiol 2019; 25(4): 364-370. DOI: 10.1177/1591019919831215. Interv Neuroradiol. 2020 Jul 06;:1591019920943325 Authors: PMID: 32631109 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 8, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Favorable first-pass recanalization rates with NeVa ™ thrombectomy device in acute stroke patients: Initial clinical experience.
CONCLUSIONS: In our experience, the NeVa™ device demonstrated high first-pass and overall recanalization rates along with a good safety profile. PMID: 32615827 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - July 5, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Typical subdural contrast effusion secondary to endovascular treatment of a pediatric pial arteriovenous fistula.
Authors: Yan WT, Li XZ, Yan CX, Liu JC Abstract Subdural contrast effusion secondary to endovascular treatment is exceptionally rare and might be mistaken as subdural hematoma because of similar hyperattenuation on computer tomography. The authors present the case of a 13-month-old girl with a history of increased head circumference and developmental retardation. Cerebral digital subtraction angiography showed a high-flow pial arteriovenous fistula fed by multiple arteries on the right cerebellar surface, with occlusion of the right sigmoid sinus and severe stenosis of the left sigmoid sinus. Staged endovascular tr...
Source: Interventional Neuroradiology - July 4, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Cangrelor dose titration using platelet function testing during cerebrovascular stent placement.
DISCUSSION: Cangrelor utilization during neuroendovascular stenting with maintenance doses of
Source: Interventional Neuroradiology - July 4, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Complications in pediatric interventional neuroradiology management. Reflections on a personal experience.
Authors: Rodesch G, Smajda S Abstract Pediatric interventional neuroradiology is a rewarding but demanding specialty. It cannot be classified as a miniaturized technical procedure simply because it deals with small vessels in small patients but remains a field requiring specific knowledge combining clinical, anatomical, physiologic, and technical features. Complications that occur remain terrible experiences in this population whose patients have not personally requested to be treated for their vascular malformations. The aim of this article is to evoke the various possible groups of complications that may occur du...
Source: Interventional Neuroradiology - June 28, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Comment on the letter to editor.
Authors: Mercier P PMID: 32576067 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - June 25, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Anatomical disposition of the anterior spinal artery and vein: Subpial or subarachnoid?
Authors: Mizutani K, Rodesch G PMID: 32576068 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - June 25, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Endovascular treatment of the vertebral artery origin stenosis by using the closed-cell, self-expandable Carotid Wallstent.
CONCLUSIONS: Endovascular treatment of symptomatic VAOS using the closed-cell, self-expandable Carotid Wallstent is technically feasible and effective in alleviating patient symptoms and for improving vertebrobasilar blood flow. PMID: 32567432 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - June 24, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

S-shaped distal access catheter supported microcatheter navigation into the lenticulostriate artery feeders of brain arteriovenous malformations.
CONCLUSION: Although some potential complications need to be considered, the S-shaped distal access catheter technique appears to be an effective alternative approach to gaining access to difficult feeders of arteriovenous malformations. PMID: 32558595 [PubMed - as supplied by publisher] (Source: Interventional Neuroradiology)
Source: Interventional Neuroradiology - June 21, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research