The Experts below are selected from a list of 375 Experts worldwide ranked by ideXlab platform
Junseok W. Hur - One of the best experts on this subject based on the ideXlab platform.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation
European Spine Journal, 2017Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Purpose Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. Methods A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Results Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Conclusions Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation.
European spine journal : official publication of the European Spine Society the European Spinal Deformity Society and the European Section of the Cerv, 2016Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
Joohyun Kim - One of the best experts on this subject based on the ideXlab platform.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation
European Spine Journal, 2017Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Purpose Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. Methods A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Results Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Conclusions Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation.
European spine journal : official publication of the European Spine Society the European Spinal Deformity Society and the European Section of the Cerv, 2016Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
Satoshi Kuroda - One of the best experts on this subject based on the ideXlab platform.
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Superficial temporal Artery to middle cerebral Artery anastomosis for neovascular glaucoma due to common carotid Artery occlusion.
Surgical neurology international, 2015Co-Authors: Shusuke Yamamoto, Daina Kashiwazaki, Naoki Akioka, Naoya Kuwayama, Satoshi KurodaAbstract:Common carotid Artery (CCA) occlusion sometimes requires surgical revascularization to resolve persistent cerebral/ocular ischemia. High-flow bypass is often indicated in these cases, using the interposed graft such as saphenous vein and radial Artery. However, high-flow bypass surgery is invasive and may provide excessive blood flow to ischemic brain. In this report, we present a case that developed neovascular glaucoma due to CCA occlusion and was successfully treated with superficial temporal Artery to middle cerebral Artery (STA-MCA) anastomosis. A 61-year-old male complained of left visual disturbance and was admitted to our hospital. He underwent carotid endarterectomy for left internal carotid Artery stenosis in previous hospital 1-year before, but he experienced left visual disturbance after surgery. Postoperative examinations revealed that the CCA was occluded. His visual disturbance gradually progressed, and he was diagnosed as neovascular glaucoma. None of ophthalmological therapy could improve his symptoms. Blood flow measurement showed an impaired reactivity to acetazolamide in the left cerebral hemisphere. Cerebral angiography demonstrated that the left STA was opacified through the muscular branches from the left Deep Cervical Artery. Therefore, he successfully underwent left STA-MCA double anastomosis. His visual acuity improved and new blood vessels around the iris markedly decreased 3 months after surgery. Precise radiological examination may enable standard STA-MCA anastomosis even in patients with CCA occlusion.
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Superficial temporal Artery to middle cerebral Artery anastomosis for neovascular glaucoma due to common carotid Artery occlusion
Surgical Neurology International, 2015Co-Authors: Shusuke Yamamoto, Daina Kashiwazaki, Naoki Akioka, Naoya Kuwayama, Satoshi KurodaAbstract:BACKGROUND Common carotid Artery (CCA) occlusion sometimes requires surgical revascularization to resolve persistent cerebral/ocular ischemia. High-flow bypass is often indicated in these cases, using the interposed graft such as saphenous vein and radial Artery. However, high-flow bypass surgery is invasive and may provide excessive blood flow to ischemic brain. In this report, we present a case that developed neovascular glaucoma due to CCA occlusion and was successfully treated with superficial temporal Artery to middle cerebral Artery (STA-MCA) anastomosis. CASE DESCRIPTION A 61-year-old male complained of left visual disturbance and was admitted to our hospital. He underwent carotid endarterectomy for left internal carotid Artery stenosis in previous hospital 1-year before, but he experienced left visual disturbance after surgery. Postoperative examinations revealed that the CCA was occluded. His visual disturbance gradually progressed, and he was diagnosed as neovascular glaucoma. None of ophthalmological therapy could improve his symptoms. Blood flow measurement showed an impaired reactivity to acetazolamide in the left cerebral hemisphere. Cerebral angiography demonstrated that the left STA was opacified through the muscular branches from the left Deep Cervical Artery. Therefore, he successfully underwent left STA-MCA double anastomosis. His visual acuity improved and new blood vessels around the iris markedly decreased 3 months after surgery. CONCLUSIONS Precise radiological examination may enable standard STA-MCA anastomosis even in patients with CCA occlusion.
Tai-hyoung Cho - One of the best experts on this subject based on the ideXlab platform.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation
European Spine Journal, 2017Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Purpose Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. Methods A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Results Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Conclusions Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation.
European spine journal : official publication of the European Spine Society the European Spinal Deformity Society and the European Section of the Cerv, 2016Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
Jang-bo Lee - One of the best experts on this subject based on the ideXlab platform.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation
European Spine Journal, 2017Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Purpose Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. Methods A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Results Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Conclusions Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
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Incidental occlusion of anterior spinal Artery due to Onyx reflux in embolization of spinal type II arteriovenous malformation.
European spine journal : official publication of the European Spine Society the European Spinal Deformity Society and the European Section of the Cerv, 2016Co-Authors: Joohyun Kim, Jang-bo Lee, Tai-hyoung Cho, Junseok W. HurAbstract:Onyx embolization is one of the standard treatments for brain arteriovenous malformations (AVMs) and is a promising method for spinal AVMs as well. Its advantages have been emphasized, and few complications have been reported with Onyx embolization in spinal AVMs. Here, we report an incidental anterior spinal Artery (ASA) occlusion due to Onyx reflux during embolization of a spinal type II AVM. A 15-year-old boy presented with weakness in both upper and lower extremities. Magnetic resonance imaging and spinal angiogram revealed a spinal type II AVM with two feeders including the right vertebral Artery (VA) and the right Deep Cervical Artery. Onyx embolization was performed gradually from the VA to the Deep Cervical Artery and an unexpected Onyx reflux to the ASA was observed during the latter stage Deep Cervical Artery embolization. Post-operative quadriplegia and low cranial nerves (CN) dysfunction were observed. Rehabilitation treatment was performed and the patient showed marked improvement of neurologic deterioration at 1-year follow-up. Onyx is an effective treatment choice for spinal AVMs. However, due to the small vasculature of the spine compared to the brain, the nidus is rapidly packed with a small amount of Onyx, which allows Onyx reflux to unexpected vessels. Extreme caution is required and dual-lumen balloon catheter could be considered for Onyx embolization in spinal AVMs treatment.
