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Author C Michael Cawley

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Postmarket American Experience With Woven EndoBridge Device: Adjudicated Multicenter Case Series.

Jacob Cherian, Stephen R Chen, Ajit Puri, Kunal Vakharia, Elad Levy, Sheila Eshraghi, Brian M Howard, Frank C Tong, C Michael Cawley, Bradley Gross, Matthew D Alexander, Ramesh Grandhi, Visish M Srinivasan, Jan-Karl Burkhardt, Jeremiah N Johnson, Peter Kan,

<h4>Background</h4>The Woven EndoBridge (WEB) device was granted premarket approval in the United States following results of the Woven EndoBridge Intrasaccular Therapy (WEB-IT) study. WEB-IT reported excellent adequate angiographic occlusion of treated aneurysms with a high safety profile. These results were achieved, however, in the context of a prospective study with ... Read more >>

Neurosurgery (Neurosurgery)
[2021, 89(2):275-282]

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Does intrathecal nicardipine for cerebral vasospasm following subarachnoid hemorrhage correlate with reduced delayed cerebral ischemia? A retrospective propensity score-based analysis.

Ofer Sadan, Hannah Waddel, Reneé Moore, Chen Feng, Yajun Mei, David Pearce, Jacqueline Kraft, Cederic Pimentel, Subin Mathew, Feras Akbik, Pouya Ameli, Alexis Taylor, Lisa Danyluk, Kathleen S Martin, Krista Garner, Jennifer Kolenda, Amit Pujari, William Asbury, Blessing N R Jaja, R Loch Macdonald, C Michael Cawley, Daniel L Barrow, Owen Samuels,

<h4>Objective</h4>Cerebral vasospasm and delayed cerebral ischemia (DCI) contribute to poor outcome following subarachnoid hemorrhage (SAH). With the paucity of effective treatments, the authors describe their experience with intrathecal (IT) nicardipine for this indication.<h4>Methods</h4>Patients admitted to the Emory University Hospital neuroscience ICU between 2012 and 2017 with nontraumatic SAH, either aneurysmal ... Read more >>

J Neurosurg (Journal of neurosurgery)
[2021, :1-10]

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Differential effect of mechanical thrombectomy and intravenous thrombolysis in atrial fibrillation associated stroke.

Feras Akbik, Ali Alawieh, C Michael Cawley, Brian M Howard, Frank C Tong, Fadi Nahab, Hassan Saad, Laurie Dimisko, Christian Mustroph, Owen B Samuels, Gustavo Pradilla, Ilko Maier, Nitin Goyal, Robert M Starke, Ansaar Rai, Kyle M Fargen, Marios N Psychogios, Pascal Jabbour, Reade De Leacy, James Giles, Travis M Dumont, Peter Kan, Adam S Arthur, Roberto Javier Crosa, Benjamin Gory, Alejandro M Spiotta, Jonathan A Grossberg, ,

<h4>Background</h4>Atrial fibrillation (AF) associated ischemic stroke has worse functional outcomes, less effective recanalization, and increased rates of hemorrhagic complications after intravenous thrombolysis (IVT). Limited data exist about the effect of AF on procedural and clinical outcomes after mechanical thrombectomy (MT).<h4>Objective</h4>To determine whether recanalization efficacy, procedural speed, and clinical outcomes differ ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2021, 13(10):883-888]

Cited: 2 times

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Flow Diversion for Treatment of Intracranial Aneurysms in Pediatric Patients: Multicenter Case Series.

Jacob Cherian, Visish Srinivasan, Michael T Froehler, Jonathan A Grossberg, C Michael Cawley, Ricardo A Hanel, Ajit Puri, Travis Dumont, Andrew F Ducruet, Felipe Albuquerque, Adam Arthur, Ahmed Cheema, Alejandro Spiotta, Mohammad Anadani, Demetrius Lopes, Ahmed Saied, Louis Kim, Cory M Kelly, Peng Roc Chen, J Mocco, Reade De Leacy, Ciarán J Powers, Ramesh Grandhi, Kyle M Fargen, Stephen R Chen, Jeremiah N Johnson, Sandi Lam, Peter Kan,

<h4>Background</h4>Though the Pipeline Embolization Device (Medtronic) is approved for use in adults 22 yr and older, the high efficacy and long-term durability of the device is attractive for treatment of intracranial aneurysms in younger patients who often have aneurysms less amenable to traditional endovascular treatments.<h4>Objective</h4>To report technical, angiographic, and clinical ... Read more >>

Neurosurgery (Neurosurgery)
[2020, 87(1):53-62]

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Endovascular sacrifice of the proximal posterior inferior cerebellar artery for treatment of ruptured intracranial aneurysms.

James G Malcolm, Jonathan A Grossberg, Nealen G Laxpati, Ali Alawieh, Frank C Tong, C Michael Cawley, Brian M Howard,

<h4>Background</h4>Ruptured aneurysms of the intracranial vertebral artery (VA) or posterior inferior cerebellar artery (PICA) are challenging to treat as they are often dissecting aneurysms necessitating direct sacrifice of the diseased segment, which is thought to carry high morbidity due to brainstem and cerebellar stroke. However, relatively few studies evaluating outcomes ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2020, 12(8):777-782]

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Recurrent Hemispheric Stroke Syndromes in Symptomatic Atherosclerotic Internal Carotid Artery Occlusions: The Carotid Occlusion Surgery Study Randomized Trial.

Fadi Nahab, Michael Liu, Haseeb A Rahman, Srikant Rangaraju, Daniel Barrow, C Michael Cawley, Robert L Grubb, Colin P Derdeyn, Harold P Adams, Tom O Videen, M Bridget Zimmerman, William J Powers,

<h4>Background</h4>There are limited data on outcomes of extracranial-intracranial (EC-IC) bypass in patients with recurrent hemispheric syndromes due to atherosclerotic internal carotid artery occlusion (AICAO).<h4>Objective</h4>To compare clinical outcomes and efficacy of EC-IC bypass surgery in patients with and without recurrent hemispheric syndromes associated with AICAO in the Carotid Occlusion Surgery Study ... Read more >>

Neurosurgery (Neurosurgery)
[2020, 87(1):137-141]

Cited: 1 time

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Wider Adoption of Flow Diversion for Intracranial Aneurysms.

Spiros L Blackburn, C Michael Cawley, Raphael Guzman,

Stroke (Stroke)
[2019, 50(12):3333-3334]

Cited: 0 times

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Prospective study on embolization of intracranial aneurysms with the pipeline device: the PREMIER study 1 year results.

Ricardo A Hanel, David F Kallmes, Demetrius Klee Lopes, Peter Kim Nelson, Adnan Siddiqui, Pascal Jabbour, Vitor M Pereira, Istvan Szikora István, Osama O Zaidat, Chetan Bettegowda, Geoffrey P Colby, Maxim Mokin, Clemens Schirmer, Frank R Hellinger, Curtis Given Ii, Timo Krings, Philipp Taussky, Gabor Toth, Justin F Fraser, Michael Chen, Ryan Priest, Peter Kan, David Fiorella, Don Frei, Beverly Aagaard-Kienitz, Orlando Diaz, Adel M Malek, C Michael Cawley, Ajit S Puri,

<h4>Background</h4>Preliminary clinical studies on the safety and efficacy of the pipeline embolization device (PED) for the treatment of small/medium aneurysms have demonstrated high occlusion rates with low complications.<h4>Objective</h4>To evaluate the safety and effectiveness of the PED for treatment of wide necked small and medium intracranial aneurysms.<h4>Methods</h4>PREMIER is a prospective, multicenter, ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2020, 12(1):62-66]

Cited: 16 times

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Microsurgical Management of a Spinal Dural Arteriovenous Fistula With Shared Blood Supply to the Artery of Adamkiewicz: 3-Dimensional Operative Video.

C Michael Cawley, Brian M Howard, Daniel L Barrow,

The presented case is of a 65-yr-old gentleman referred for thoracic myelopathy. He developed bilateral, nondermatomal foot dysesthesia 14 mo prior to presentation, which progressed to numbness below the L3 level. He reported progressive gait instability, bilateral lower extremity weakness, and required a cane for ambulation. He subsequently developed urinary ... Read more >>

Oper Neurosurg (Hagerstown) (Operative neurosurgery (Hagerstown, Md.))
[2019, 16(6):E174-E175]

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Hemodynamic Fate of the Precommunicating Anterior Cerebral Artery Is Predicted by Vessel Dominance After Pipeline Embolization Device Deployment Across the Internal Carotid Artery Terminus.

Amit Pujari, Brian M Howard, Susana L Skukalek, Jacob Cherian, Alhamza Al-Bayati, Frank Tong, Jacque E Dion, C Michael Cawley, Jonathan A Grossberg,

<h4>Background</h4>The Pipeline embolization device (PED) is commonly used for the treatment of distal internal carotid artery (ICA) aneurysms, which often require placing the stent across the origin of the precommunicating segment of the anterior cerebral artery (ACA-A1). We sought to characterize the clinical and angiographic consequences of this maneuver.<h4>Methods</h4>We performed ... Read more >>

World Neurosurg (World neurosurgery)
[2019, 128:e688-e693]

Cited: 1 time

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Microsurgical Treatment of Cerebral Aneurysms After Previous Endovascular Therapy: Single-Center Series and Systematic Review.

Anil K Roy, Lucas R Philipp, Brian M Howard, C Michael Cawley, Jonathan A Grossberg, Daniel L Barrow,

<h4>Background</h4>Since its introduction in the early 1990s, endovascular treatment of cerebral aneurysms has had a steady upward trend and is the primary mode of treatment for most intracranial aneurysms. Concurrently, the need for retreatment of aneurysms after previous endovascular treatment has continued to increase, some of which can only be ... Read more >>

World Neurosurg (World neurosurgery)
[2019, 123:e103-e115]

Cited: 0 times

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Pipeline Embolization of Vertebrobasilar Aneurysms-A Multicenter Case Series.

Adam N Wallace, Thomas P Madaelil, Mudassar Kamran, Timothy R Miller, Josser E Delgado Almandoz, Jonathan A Grossberg, Akash P Kansagra, Dheeraj Gandhi, Yasha Kayan, C Michael Cawley, Christopher J Moran, Gaurav Jindal, Travis CreveCoeur, Brian M Howard, DeWitte T Cross, Matthew J Kole, Anil K Roy, Jacques E Dion, Joshua W Osbun,

<h4>Background</h4>The Pipeline Embolization Device (PED) has been increasingly used for the treatment of posterior circulation aneurysms. The purpose of the present study was to examine the clinical and angiographic outcomes of patients with vertebrobasilar aneurysms treated with the PED.<h4>Methods</h4>We performed a retrospective review of vertebrobasilar aneurysms treated with the PED ... Read more >>

World Neurosurg (World neurosurgery)
[2019, :]

Cited: 1 time

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Combined reconstructive and deconstructive endovascular approach for bilateral vertebral artery dissection with subarachnoid hemorrhage.

Jacob Cherian, Thomas P Madaelil, Frank Tong, Brian M Howard, C Michael Cawley, Jonathan A Grossberg,

The video highlights a challenging case of bilateral vertebral artery dissection presenting with subarachnoid hemorrhage. The patient was found to have a critical flow-limiting stenosis in his dominant right vertebral artery and a ruptured pseudoaneurysm in his left vertebral artery. A single-stage endovascular treatment with stent reconstruction of the right ... Read more >>

Neurosurg Focus (Neurosurgical focus)
[2019, 46(Suppl_1):V13]

Cited: 0 times

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Pipeline embolization device treatment of internal carotid artery terminus aneurysms.

Amit Pujari, Brian Matthew Howard, Thomas P Madaelil, Susana Libhaber Skukalek, Anil K Roy, Jacques E Dion, C Michael Cawley, Jonathan A Grossberg,

<h4>Background</h4>The pipeline embolization device (PED) is approved for the treatment of large aneurysms of the proximal internal carotid artery (ICA). Its off-label application in treating aneurysms located specifically at the ICA terminus (ICA-T) has not been studied.<h4>Methods</h4>We conducted a retrospective chart review of patients from 2011 to 7 treated with ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2019, 11(5):485-488]

Cited: 4 times

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Endovascular Treatment of Posterior Cerebral Artery Aneurysms With Flow Diversion: Case Series and Systematic Review.

Adam N Wallace, Jonathan A Grossberg, Josser E Delgado Almandoz, Mudassar Kamran, Anil K Roy, Yasha Kayan, Matthew J Austin, Brian M Howard, Christopher J Moran, C Michael Cawley, DeWitte T Cross, Jacques E Dion, Akash P Kansagra, Joshua W Osbun,

BACKGROUND:Flow diversion of posterior cerebral artery (PCA) aneurysms has not been widely reported, possibly owing to concerns regarding parent vessel size and branch vessel coverage. OBJECTIVE:To examine the safety and effectiveness of PCA aneurysm flow diverter treatment. METHODS:Retrospective review of PCA aneurysms treated with the Pipeline Embolization Device (PED; Medtronic ... Read more >>

Neurosurgery (Neurosurgery)
[2018, 83(4):790-799]

Cited: 7 times

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'Plug and pipe' strategy for treatment of ruptured intracranial aneurysms.

Brian M Howard, Jason M Frerich, Thomas P Madaelil, Jacques E Dion, Frank C Tong, C Michael Cawley, Jonathan A Grossberg,

<h4>Background</h4>Aneurysmal subarachnoid hemorrhage is a potentially devastating condition, and among the first priorities of treatment is aneurysm occlusion to prevent re-hemorrhage. An emerging strategy to treat patients whose aneurysms are not ideal for surgical or endovascular treatment is subtotal coiling followed by flow diversion in the recovery phase or 'plug ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2019, 11(1):43-48]

Cited: 4 times

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Incompletely obliterated cranial arteriovenous fistulae are safely and effectively treated with adjuvant ε-aminocaproic acid.

Brian M Howard, Jonathan A Grossberg, Adam Prater, C Michael Cawley, Jacques E Dion, Frank C Tong,

<h4>Background</h4>Administration of ε-aminocaproic acid (εACA), as adjuvant therapy following incompletely embolized cranial dural arteriovenous (dAVFs) and direct carotid artery to cavernous sinus fistulae (CCFs), is a strategy to promote post-procedural thrombosis. However, the efficacy of εACA to treat incompletely obliterated dAVFs and CCFs has not been published. The purpose of ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2018, 10(7):698-703]

Cited: 0 times

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Comparison Between CTA and Digital Subtraction Angiography in the Diagnosis of Ruptured Aneurysms.

Lucas R Philipp, D Jay McCracken, Courtney E McCracken, Sameer H Halani, Brendan P Lovasik, Arsalaan A Salehani, Jason H Boulter, C Michael Cawley, Jonathan A Grossberg, Daniel L Barrow, Gustavo Pradilla,

<h4>Background</h4>Computerized tomography angiography (CTA) is commonly used to diagnose ruptured cerebral aneurysms with sensitivities reported as high as 97% to 100%. Studies validating CTA accuracy in the setting of subarachnoid hemorrhage (SAH) are scarce and limited by small sample sizes.<h4>Objective</h4>To evaluate the diagnostic accuracy of CTA in detecting intracranial aneurysms ... Read more >>

Neurosurgery (Neurosurgery)
[2017, 80(5):769-777]

Cited: 8 times

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Treatment of complex anterior cerebral artery aneurysms with Pipeline flow diversion: mid-term results.

Guilherme Dabus, Jonathan A Grossberg, C Michael Cawley, Jacques E Dion, Ajit S Puri, Ajay K Wakhloo, Douglas Gonsales, Pedro Aguilar-Salinas, Eric Sauvageau, Italo Linfante, Ricardo A Hanel,

<h4>Background</h4>The off-label use of flow diverters in the treatment of distal aneurysms continues to be debated.<h4>Objective</h4>To report our multicenter experience in the treatment of complex anterior cerebral artery aneurysms with the Pipeline embolization device (PED).<h4>Methods</h4>The neurointerventional databases of the four participating institutions were retrospectively reviewed for aneurysms treated with PED ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2017, 9(2):147-151]

Cited: 20 times

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Resolution of Oculomotor Nerve Palsy Secondary to Posterior Communicating Artery Aneurysms: Comparison of Clipping and Coiling.

D Jay McCracken, Brendan P Lovasik, Courtney E McCracken, Justin M Caplan, Nefize Turan, Raul G Nogueira, C Michael Cawley, Jacques E Dion, Rafael J Tamargo, Daniel L Barrow, Gustavo Pradilla,

<h4>Background</h4>Previous studies have attempted to determine the best treatment for oculomotor nerve palsy (ONP) secondary to posterior communicating artery (PCoA) aneurysms, but have been limited by small sample sizes and limited treatment.<h4>Objective</h4>To analyze the treatment of ONP secondary to PCoA with both coiling and clipping in ruptured and unruptured aneurysms.<h4>Methods</h4>Data ... Read more >>

Neurosurgery (Neurosurgery)
[2015, 77(6):931-9; discussion 939]

Cited: 7 times

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Effect of antiplatelet therapy and platelet function testing on hemorrhagic and thrombotic complications in patients with cerebral aneurysms treated with the pipeline embolization device: a review and meta-analysis.

Susana L Skukalek, Anne M Winkler, Jian Kang, Jacques E Dion, C Michael Cawley, Adam Webb, Mark J Dannenbaum, Albert J Schuette, Bill Asbury, Frank C Tong,

<h4>Purpose</h4>The pipeline embolization device (PED) necessitates dual antiplatelet therapy (APT) to decrease thrombotic complications while possibly increasing bleeding risks. The role of APT dose, duration, and response in patients with hemorrhagic and thromboembolic events warrants further analysis.<h4>Methods</h4>A PubMed and Google Scholar search from 2009 to 2014 was performed using the ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2016, 8(1):58-65]

Cited: 26 times

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Advances in surgical approaches to dural fistulas.

Patrick P Youssef, Albert Jess Schuette, C Michael Cawley, Daniel L Barrow,

Dural arteriovenous fistulas are abnormal connections of dural arteries to dural veins or venous sinuses originating from within the dural leaflets. They are usually located near or within the wall of a dural venous sinus that is frequently obstructed or stenosed. The dural fistula sac is contained within the dural ... Read more >>

Neurosurgery (Neurosurgery)
[2014, 74 Suppl 1:S32-41]

Cited: 6 times

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Flexible tip guides and intermediate catheters: two center experience and a proposed taxonomy.

Ferdinand K Hui, A Jesse Schuette, Alejandro M Spiotta, John Yim, Nancy Obuchowski, Peter A Rasmussen, Mohammed Shazam Hussain, C Michael Cawley, Jacques E Dion, Frank C Tong,

<h4>Background</h4>Stable access to target lesions is foundational to endovascular therapy, be it in hemorrhagic or ischemic disease. Continued evolution in access technology has resulted in next generation catheters that afford improved trackability and proximal support.<h4>Objective</h4>Assess safety and patterns of use at two high volume centers, and conceptualize usage patterns.<h4>Materials and ... Read more >>

J Neurointerv Surg (Journal of neurointerventional surgery)
[2014, 6(8):618-623]

Cited: 6 times

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ε-Aminocaproic acid in angiographically negative subarachnoid hemorrhage patients is safe: a retrospective review of 83 consecutive patients.

Ferdinand K Hui, Albert J Schuette, Michael Lieber, Alejandro M Spiotta, Shaye I Moskowitz, Daniel L Barrow, C Michael Cawley,

<h4>Background</h4>ε-Aminocaproic acid (EACA) has been used to reduce the rate of cerebral aneurysm rerupture before definitive treatment. In centers administering EACA to patients with a subarachnoid hemorrhage (SAH), patients eventually diagnosed with angiographically negative subarachnoid hemorrhage (ANSAH) may also initially receive EACA, perhaps placing them at increased risk for ischemic ... Read more >>

Neurosurgery (Neurosurgery)
[2012, 70(3):702-5; discussion 705-6]

Cited: 4 times

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Early aggressive medical management for patients with symptomatic intracranial stenosis.

Fadi Nahab, Carlene Kingston, Michael R Frankel, Jacques E Dion, C Michael Cawley, Brian Mitchell, L Paige Hammonds, Lauren Ayala, Frank C Tong,

<h4>Background</h4>There are limited data on the effect of an early aggressive risk factor modification program to achieve risk factor targets and its impact on clinical outcomes among patients with symptomatic intracranial stenosis.<h4>Methods</h4>We prospectively identified patients with symptomatic intracranial stenosis of 50% to 99% (using computed tomographic angiography or cerebral angiography) ... Read more >>

J Stroke Cerebrovasc Dis (Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association)
[2013, 22(1):87-91]

Cited: 6 times

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