The Experts below are selected from a list of 105 Experts worldwide ranked by ideXlab platform
Kieran Murphy - One of the best experts on this subject based on the ideXlab platform.
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Transvenous embolization of a dural arteriovenous fistula of the laterocavernous sinus through the Pterygoid Plexus
Neuroradiology, 2007Co-Authors: Diego San Millán Ruíz, Jean H. D. Fasel, Mayumi Oka, Richard Clatterbuck, Philippe Gailloud, Kieran MurphyAbstract:We present a novel access for transvenous embolization of a dural arteriovenous fistula of the laterocavernous sinus through the external jugular vein and the Pterygoid Plexus. The anatomy of the laterocavernous sinus is reviewed, and its clinical implications discussed in light of the case of a patient whose management was modified after identifying this anatomical variation.
Thomas A Tomsick - One of the best experts on this subject based on the ideXlab platform.
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Transvenous Embolization of a Direct Carotid Cavernous Fistula through the Pterygoid Plexus
2015Co-Authors: Galen F.h. Chun, Thomas A TomsickAbstract:Summary: Closure of a direct carotid cavernous fistula with detachable coils by transPterygoid venous approach to the cavernous sinus is an alternative technique that may be applied in cases in which other techniques offer increased risk or in which other techniques have failed. In this case report, we present the details of the management of a direct carotid cavernous fistula by this method. The efficacy and safety of detachable balloon oc-clusion of direct carotid cavernous fistulas are well established (1). However, detachable balloon tech-niques have required occlusion of the internal carotid artery (ICA) in a substantial percentage of patients (2–4). New approaches to and occlusion methods of carotid cavernous fistulas have been described, with increased focus on preserving ICA flow. These meth
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Transvenous Embolization of a Direct Carotid Cavernous Fistula through the Pterygoid Plexus
American Journal of Neuroradiology, 2002Co-Authors: Galen F.h. Chun, Thomas A TomsickAbstract:Summary: Closure of a direct carotid cavernous fistula with detachable coils by transPterygoid venous approach to the cavernous sinus is an alternative technique that may be applied in cases in which other techniques offer increased risk or in which other techniques have failed. In this case report, we present the details of the management of a direct carotid cavernous fistula by this method.
Shunro Endo - One of the best experts on this subject based on the ideXlab platform.
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The Impact of Cavernous Sinus Drainage Pattern on the Results of Venous Sampling in Patients With Suspected Cushing Syndrome
2015Co-Authors: Nakamasa Hayashi, Kunikazu Kurosaki, Naoya Kuwayama, Michiya Kubo, Masanori Kurimoto, Shoichi Nagai, Shunro EndoAbstract:BACKGROUND AND PURPOSE: Selective venous sampling from the posterior portion of the cavernous sinus (CS) is recommended for the diagnosis of Cushing disease, because samples from the posterior portion yield higher adrenocorticotropic hormone (ACTH) levels than those from the anterior and middle portions. We prospectively assessed this intracavernous gradient of ACTH level to determine which site in the CS yields adequate sampling. MATERIALS AND METHODS: In 5 patients with Cushing syndrome, cavernous sinography was per-formed to assess drainage pattern of the CS. Sampling was performed from the anterior, middle, and posterior parts of the CS, inferior petrosal sinus (IPS), and the peripheral vein. The ratio of the concentration in CS and IPS to that in peripheral blood plasma (C/P ratio) was calculated. RESULTS: Cavernous sinography showed that the main drainage route was the IPS in 6 sides and that the Pterygoid Plexus (PP) was developed to the same extent as the IPS in 3 sides. In 1 patient, the CS drained mainly to the PP. In 1 patient with an ectopic lesion, no increase in ACTH level was detected. In 3 of 4 patients with Cushing disease, the highest C/P ratio was obtained from the posterior portion. In 1 patient whose main drainage route was the PP, the highest C/P ratio was obtained from the anterior portion. In this case, sampling data from the posterior portion and the IPS yielded false
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the impact of cavernous sinus drainage pattern on the results of venous sampling in patients with suspected cushing syndrome
American Journal of Neuroradiology, 2008Co-Authors: Nakamasa Hayashi, Kunikazu Kurosaki, Naoya Kuwayama, Michiya Kubo, Masanori Kurimoto, Shoichi Nagai, Shunro EndoAbstract:BACKGROUND AND PURPOSE: Selective venous sampling from the posterior portion of the cavernous sinus (CS) is recommended for the diagnosis of Cushing disease, because samples from the posterior portion yield higher adrenocorticotropic hormone (ACTH) levels than those from the anterior and middle portions. We prospectively assessed this intracavernous gradient of ACTH level to determine which site in the CS yields adequate sampling. MATERIALS AND METHODS: In 5 patients with Cushing syndrome, cavernous sinography was performed to assess drainage pattern of the CS. Sampling was performed from the anterior, middle, and posterior parts of the CS, inferior petrosal sinus (IPS), and the peripheral vein. The ratio of the concentration in CS and IPS to that in peripheral blood plasma (C/P ratio) was calculated. RESULTS: Cavernous sinography showed that the main drainage route was the IPS in 6 sides and that the Pterygoid Plexus (PP) was developed to the same extent as the IPS in 3 sides. In 1 patient, the CS drained mainly to the PP. In 1 patient with an ectopic lesion, no increase in ACTH level was detected. In 3 of 4 patients with Cushing disease, the highest C/P ratio was obtained from the posterior portion. In 1 patient whose main drainage route was the PP, the highest C/P ratio was obtained from the anterior portion. In this case, sampling data from the posterior portion and the IPS yielded false-negative results. CONCLUSION: Understanding the drainage patterns of the CS is essential for interpretation of sampling data from the CS and avoiding false-negative results.
F Vinuela - One of the best experts on this subject based on the ideXlab platform.
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transvenous embolization of a dural arteriovenous fistula of the cavernous sinus through the contralateral Pterygoid Plexus
Neuroradiology, 1998Co-Authors: Reza Jahan, Gary Duckwiler, Y P Gobin, B Glenn, F VinuelaAbstract:We report a new transvenous endovascular route for treatment of dural arteriovenous fistulas of the cavernous sinus. The cavernous sinus was approached from the contralateral Pterygoid Plexus and embolization of a dural fistula was performed successfully with Guglielmi detachable coils.
Diego San Millán Ruíz - One of the best experts on this subject based on the ideXlab platform.
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Transvenous embolization of a dural arteriovenous fistula of the laterocavernous sinus through the Pterygoid Plexus
Neuroradiology, 2007Co-Authors: Diego San Millán Ruíz, Jean H. D. Fasel, Mayumi Oka, Richard Clatterbuck, Philippe Gailloud, Kieran MurphyAbstract:We present a novel access for transvenous embolization of a dural arteriovenous fistula of the laterocavernous sinus through the external jugular vein and the Pterygoid Plexus. The anatomy of the laterocavernous sinus is reviewed, and its clinical implications discussed in light of the case of a patient whose management was modified after identifying this anatomical variation.