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ESTUDIOS


27 junio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Spontaneous Delayed Migration/Shortening of the Pipeline Embolization Device: Report of 5 Cases

N. Chalouhi, S.I. Tjoumakaris, L.F. Gonzalez, D. Hasan, P.J. Pema, G. Gould, R.H. Rosenwasser and P.M. Jabbour

SUMMARY: Five patients were found to have spontaneous delayed migration/shortening of their Pipeline Embolization Devices on follow-up angiography. The device migrated proximally in 4 patients and distally in 1 patient. One patient had a subarachnoid hemorrhage and died as a result of migration of the Pipeline Embolization Device, and another patient presented with complete MCA occlusion and was left severely disabled. Mismatch in arterial diameter between inflow and outflow vessels was a constant finding. Migration of the Pipeline Embolization Device was managed conservatively, with additional placement of the device, or with parent vessel occlusion. Obtaining complete expansion of the embolization device by using a longer device, increasing vessel coverage, using adjunctive aneurysm coiling, and avoiding dragging and stretching of the device are important preventive measures. Neurointerventionalists should be aware of this potentially fatal complication and take all necessary preventive measures.

19 abril 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Y-Configuration Stent Placement (Crossing and Kissing) for Endovascular Treatment of Wide-Neck Cerebral Aneurysms Located at 4 Different Bifurcation Sites

K.-J. Zhao, P.-F. Yang, Q.-H. Huang, Q. Li, W.-Y. Zhao, J.-M. Liu and B. Hong

BACKGROUND AND PURPOSE: The Y-stent technique, including crossing-Y and kissing-Y, is a promising therapeutic option for some complex bifurcation aneurysms. Here, its efficacy and safety are evaluated on the basis of 11 bifurcation aneurysms.

03 julio 2014

AMERICAN JOURNAL OF NEURORADIOLOGY. WEB Intrasaccular Flow Disruptor—Prospective, Multicenter Experience in 83 Patients with 85 Aneurysms

C. Papagiannaki, L. Spelle, A.-C. Januel, A. Benaissa, J.-Y. Gauvrit, V. Costalat, H. Desal, F. Turjman, S. Velasco, X. Barreau, P. Courtheoux, C. Cognard, D. Herbreteau, J. Moret and L. Pierot

BACKGROUND AND PURPOSE: The safety and efficacy of WEB flow disruption have been analyzed in small, retrospective series. The object of this study was to evaluate the safety and efficacy of WEB flow disruption in a large, multicenter, prospectively collected population.

23 enero 2014

AMERICAN JOURNAL OF NEURORADIOLOGY. WEB-DL Endovascular Treatment of Wide-Neck Bifurcation Aneurysms: Short- and Midterm Results in a European Study

B. Lubicz, J. Klisch, J.-Y. Gauvrit, I. Szikora, M. Leonardi, T. Liebig, N.P. Nuzzi, E. Boccardi, F.D. Paola, M. Holtmannspötter, W. Weber, E. Calgliari, V. Sychra, B. Mine and L. Pierot

BACKGROUND AND PURPOSE: Flow disruption with the WEB-DL device has been used safely for the treatment of wide-neck bifurcation aneurysms, but the stability of aneurysm occlusion after this treatment is unknown. This retrospective multicenter European study analyzed short- and midterm data in patients treated with WEB-DL.

02 mayo 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Stent-Assisted Coiling Versus Balloon Remodeling of Wide-Neck Aneurysms: Comparison of Angiographic Outcomes

N. Chalouhi, R.M. Starke, M.T. Koltz, P.M. Jabbour, S.I. Tjoumakaris, A.S. Dumont, R.H. Rosenwasser, S. Singhal and L.F. Gonzalez

BACKGROUND AND PURPOSE: Stent-assisted coiling and balloon-assisted coiling are 2 well-established techniques for treatment of wide-neck intracranial aneurysms. A direct comparative analysis of angiographic outcomes with the 2 techniques has not been available. We compare the angiographic outcomes of wide-neck aneurysms treated with stent-assisted coiling versus balloon-assisted coiling.

12 septiembre 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Complications of Endovascular Treatment for Acute Stroke in the SWIFT Trial with Solitaire and Merci Devices

P.T. Akins, A.P. Amar, R.S. Pakbaz and J.D. Fields on behalf of the SWIFT Investigators

BACKGROUND AND PURPOSE: Treatment of patients with ischemic stroke after endovascular treatment requires in-depth knowledge of complications. The goal of this study was to make endovascular treatment for acute ischemic stroke safer through an in-depth review of the major periprocedural complications observed in the Solitaire FR With Intention for Thrombectomy (SWIFT) trial.

01 noviembre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Treatment of Acute Vertebrobasilar Occlusion Using Thrombectomy with Stent Retrievers: Initial Experience with 18 Patients

M. Espinosa de Rueda, G. Parrilla, J. Zamarro, B. García-Villalba, F. Hernández and A. Moreno

BACKGROUND AND PURPOSE: Acute vertebrobasilar occlusion is an ominous disease with few proved effective treatments. Experience with stent retrievers is scarce and limited to combined therapies (stent retrievers associated with previous intravenous fibrinolysis, intra-arterial thrombolysis, or other mechanical devices). We present our experience with 18 patients treated with direct thrombectomy by using stent retrievers.

08 noviembre 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Predictors of Functional Outcome after Emergency Carotid Artery Stenting and Intra-Arterial Thrombolysis for Treatment of Acute Stroke Associated with Obstruction of the Proximal Internal Carotid Artery and Tandem Downstream Occlusion

H.S. Kwak, S.B. Hwang, G.Y. Jin, D.S. Hippe and G.H. Chung

BACKGROUND AND PURPOSE: Patients who develop severe stroke symptoms due to acute internal carotid artery occlusion eventually in combination with a thromboembolic obstruction of the middle cerebral artery incur a major risk of developing extensive MCA infarction with a poor outcome. The purpose of this study was to evaluate the outcome for patients with tandem occlusions in the MCA and/or distal ICA, retrospectively, who had undergone stent implantation in the proximal segment of the ICA in addition to intra-arterial thrombolysis.

12 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Efficacy and Safety of Flow Diversion for Paraclinoid Aneurysms: A Matched-Pair Analysis Compared with Standard Endovascular Approaches

G. Lanzino, E. Crobeddu, H.J. Cloft, R. Hanel and D.F. Kallmes

BACKGROUND AND PURPOSE: Flow diversion is a new strategy for the treatment of complex paraclinoid aneurysms. However, flow diverters have, to date, not been tested in direct comparison with other available treatments. We present a matched-pair comparison of paraclinoid aneurysms treated with the PED versus other endovascular techniques.

19 abril 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Endovascular Treatment of Ruptured Intracranial Aneurysms: Factors Affecting Midterm Quality Anatomic Results: Analysis in a Prospective, Multicenter Series of Patients (CLARITY)

L. Pierot, C. Cognard, R. Anxionnat and F. Ricolfi for the CLARITY Investigators

BACKGROUND AND PURPOSE: Recanalization is 1 drawback of the EVT of intracranial aneurysms. An analysis of the factors affecting the midterm anatomic results after EVT of ruptured intracranial aneurysms in a large multicenter series (CLARITY) is presented.

04 julio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Last-Recorded P2Y12 Reaction Units Value Is Strongly Associated with Thromboembolic and Hemorrhagic Complications Occurring Up to 6 Months after Treatment in Patients with Cerebral Aneurysms Treated with the Pipeline Embolization Device

J.E. Delgado Almandoz, B.M. Crandall, J.M. Scholz, J.L. Fease, R.E. Anderson, Y. Kadkhodayan and D.E. Tubman

BACKGROUND AND PURPOSE: A recent study identified a preprocedural P2Y12 reaction units value of <60 or >240 as a strong independent predictor of perioperative thromboembolic and hemorrhagic complications after treatment of cerebral aneurysms with the Pipeline Embolization Device. This study aimed to determine whether a last-recorded P2Y12 reaction units value of <60 or >240 predicts thromboembolic and hemorrhagic complications up to 6 months after treatment of cerebral aneurysms with the Pipeline Embolization Device in the same patient cohort.

12 diciembre 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Acute Basilar Artery Occlusion: Outcome of Mechanical Thrombectomy with Solitaire Stent within 8 Hours of Stroke Onset

J.M. Baek, W. Yoon, S.K. Kim, M.Y. Jung, M.S. Park, J.T. Kim and H.K. Kang

BACKGROUND AND PURPOSE: Mechanical thrombectomy with a stent retriever applied shortly after symptom onset could increase good functional outcomes and improve survival in patients with acute basilar artery occlusion, but this has not yet been studied. This study evaluated the efficacy and safety of mechanical thrombectomy with a Solitaire stent within 8 hours of stroke onset in patients with acute basilar artery occlusion.

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