01 octubre 2012

CVIR. Quantitative Discomanometry: Correlation of Intradiscal Pressure Values to Pain Reduction in Patients With Intervertebral Disc Herniation Treated With Percutaneous, Minimally Invasive, Image-Guided Techniques

Dimitrios K. Filippiadis, A. Mazioti, O. Papakonstantinou, E. Brountzos, A. Gouliamos, N. Kelekis, A. Kelekis

Purpose: To illustrate quantitative discomanometry’s (QD) diagnostic efficacy and predictive value in discogenic-pain evaluation in a prospective study correlating intradiscal pressure values with pain reduction after percutaneous image-guided technique (i.e., percutaneous decompression, PD). CardioVascular and Interventional Radiology October 2012, Volume 35, Issue 5, pp 1145-1153. Copyright © Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2011

01 noviembre 2011

JACC CARDIOVASCULAR INTERVENTIONS. Carotid Artery Stenting Before Cardiac Surgery. A Promising Path Down a Muddy Road?

William Anthony Gray, MD

The management of synchronous carotid disease and coronary or valvular disease requiring surgical repair has been a constant challenge to clinicians for decades and for a variety of reasons. First, although it is a vexing problem, it is relatively infrequent, such that any single institution/operator experience in management will always be clouded by “the last case I did” syndrome, more reflective than definitive. Second, even in patients without carotid stenosis, the risk of stroke inherent in cardiac surgery from other sources (atheroembolic from aortic manipulation, air emboli, and so on) clouds the assessment of the neurological “natural” history of the unoperated carotid stenosis in this setting. However, it seems clear enough that the patient with symptomatic carotid disease is at most risk and requires further management consideration, but that most asymptomatic patients with unilateral disease can withstand a cardiac operation with little increase in overall stroke risk and, therefore, should not be subjected to carotid revascularization risks (2). Next, the published database that generally helps guide such decisions in practice comprises largely single-center reports, and usually retrospectively analyzed. J Am Coll Cardiol Intv. 2011;4(11):1197-1199. doi:10.1016/j.jcin.2011.09.009. Copyright © 2011 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

01 noviembre 2011

CIRCULATION. Cerebral Abscess Due to Persistent Left Superior Vena Cava Draining Into the Left Atrium

Ming-Sum Lee, MD, PhD; Reena L. Pande, MD; Balaji Rao, MD; Michael J. Landzberg, MD; Raymond Y. Kwong, MD

A 47-year-old woman with a history of paroxysmal atrial fibrillation presented with seizure. She noted progressive fatigue in the preceding 6 months. The week before admission, she had worsening headaches and increased irritability. On the day of admission, she developed an episode of grand-mal seizure. MRI of the brain revealed a round lesion in the left frontal lobe measuring 11 cm by 15 mm with an extensive halo of T2 hyperintensity surrounding the lesion and minimal inherent T1 high signal along the border. The lesion was suspicious for an abscess. She was taken to the operating room for biopsy. Craniotomy and corticectomy revealed an abscess cavity with a large amount of purulent material. Culture of the purulent drainage grew Streptococcus intermedius. She was started on penicillin G and metronidazole. Circulation. 2011; 124: 2362-2364 doi: 10.1161/​CIRCULATIONAHA.111.046102. Copyright © 2011 American Heart Association, Inc. All rights reserved. Print ISSN: 0009-7322. Online ISSN: 1524-4539

01 noviembre 2011

JACC CARDIOVASCULAR INTERVENTIONS. Carotid Artery Stenting and Cardiac Surgery in Symptomatic Patients

Jan Van der Heyden, MD; Danihel Van Neerven; Uday Sonker, MD; Egbert T. Bal, MD; Johannes C. Kelder, MD; Herbert W.M. Plokker, MD, PhD; Maarten J. Suttorp, MD, PhD

Objectives: The purpose of this study was to evaluate the feasibility and safety of the combined outcome of carotid artery stenting (CAS) and coronary artery bypass graft (CABG) surgery in neurologically symptomatic patients. J Am Coll Cardiol Intv. 2011;4(11):1190-1196. doi:10.1016/j.jcin.2011.07.012. Copyright © 2011 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

01 noviembre 2012

RADIOLOGY. Prediction of Subacute Infarct Size in Acute Middle Cerebral Artery Stroke: Comparison of Perfusion-weighted Imaging and Apparent Diffusion Coefficient Maps

Aurélie Drier, MD, , Thomas Tourdias, MD, , Yohan Attal, PhD, , Igor Sibon, MD, PhD, , Gurkan Mutlu, MD, , Stéphane Lehéricy, MD, PhD, , Yves Samson, MD, , Jacques Chiras, MD, , Didier Dormont, MD, , Jean-Marc Orgogozo, MD, , Vincent Dousset, MD, PhD, and , Charlotte Rosso, MD, PhD

Purpose: To compare perfusion-weighted (PW) imaging and apparent diffusion coefficient (ADC) maps in prediction of infarct size and growth in patients with acute middle cerebral artery infarct.

01 octubre 2012

JACC.Pre-procedural Risk Quantification for Carotid Stenting Using the CAS Score A Report From the NCDR CARE Registry

Beau M. Hawkins, MD; Kevin F. Kennedy, MS; Jay Giri, MD, MPH; Adam J. Saltzman, MD; Kenneth Rosenfield, MD; Douglas E. Drachman, MD; Christopher J. White, MD; John A. Spertus, MD, MPH; Robert W. Yeh, MD, MSc

Objectives We developed and internally validated a risk score to predict in-hospital stroke or death after carotid artery stenting (CAS). J Am Coll Cardiol. 2012;60(17):1617-1622. doi:10.1016/j.jacc.2012.07.026. Copyright © 2012 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

01 octubre 2012

NEUROSURGERY. Safety and Efficacy of Onyx Embolization for Pediatric Cranial and Spinal Vascular Lesions and Tumors

Ashour, Ramsey MD; Aziz-Sultan, Mohammad Ali MD; Soltanolkotabi, Maryam MD; Schoeneman, Samantha E. BA; Alden, Tord D. MD; Hurley, Michael C. MD; Dipatri, Arthur J. MD; Tomita, Tadanori MD; Elhammady, Mohamed Samy MD; Shaibani, Ali MD

BACKGROUND: Although Onyx is widely used to embolize vascular lesions in adults, the safety and efficacy of this liquid embolic agent for use in children are not well studied. Neurosurgery: October 2012 - Volume 71 - Issue 4 - p 773–784 doi: 10.1227/NEU.0b013e3182648db6. Copyright © by the Congress of Neurological Surgeons

01 octubre 2012

NEUROSURGERY. Safety and Efficacy of Endovascular Treatment of Basilar Tip Aneurysms by Coiling With and Without Stent Assistance: A Review of 235 Cases

Chalouhi, Nohra MD*; Jabbour, Pascal MD*; Gonzalez, L. Fernando MD*; Dumont, Aaron S. MD*; Rosenwasser, Robert MD*; Starke, Robert M. MD‡; Gordon, David MD*; Hann, Shannon MD*; Tjoumakaris, Stavropoula MD*

BACKGROUND: Endovascular therapy is now the preferred treatment option for basilar tip aneurysms (BTAs). Neurosurgery: October 2012 - Volume 71 - Issue 4 - p 785–794 doi: 10.1227/NEU.0b013e318265a416. Copyright © by the Congress of Neurological Surgeons

01 octubre 2012

NEUROSURGERY. Factors and Outcomes Associated With Early and Delayed Aneurysm Treatment in Subarachnoid Hemorrhage Patients in the United States

Siddiq, Farhan MD; Chaudhry, Saqib A. MD; Tummala, Ramachandra P. MD; Suri, M. Fareed K. MD; Qureshi, Adnan I. MD

BACKGROUND: Recent studies from selected centers have shown that early surgical treatment of aneurysms in subarachnoid hemorrhage (SAH) patients can improve outcomes. These results have not been validated in clinical practice at large. Neurosurgery: September 2012 - Volume 71 - Issue 3 - p 670–678 doi: 10.1227/NEU.0b013e318261749b. Copyright © by the Congress of Neurological Surgeons

01 octubre 2012

NEUROSURGERY. Long-term Outcomes After Staged-Volume Stereotactic Radiosurgery for Large Arteriovenous Malformations

Huang, Paul P. MD; Rush, Stephen C. MD; Donahue, Bernadine MD; Narayana, Ashwatha MD; Becske, Tibor MD; Nelson, P. Kim MD; Han, Kerry PhD; Jafar, Jafar J. MD

BACKGROUND: Stereotactic radiosurgery is an effective treatment modality for small arteriovenous malformations (AVMs) of the brain. For larger AVMs, the treatment dose is often lowered to reduce potential complications, but this decreases the likelihood of cure. One strategy is to divide large AVMs into smaller anatomic volumes and treat each volume separately. Neurosurgery: September 2012 - Volume 71 - Issue 3 - p 632–644 doi: 10.1227/NEU.0b013e31825fd247. Copyright © by the Congress of Neurological Surgeons

01 octubre 2012

NEUROSURGERY. Single-Fraction Radiosurgery of Benign Intracranial Meningiomas

Pollock, Bruce E. MD; Stafford, Scott L. MD; Link, Michael J. MD; Brown, Paul D. MD; Garces, Yolanda I. MD; Foote, Robert L. MD

BACKGROUND: Stereotactic radiosurgery (SRS) of benign intracranial meningiomas is an accepted management option for well-selected patients. Neurosurgery: September 2012 - Volume 71 - Issue 3 - p 604–613 doi: 10.1227/NEU.0b013e31825ea557. Copyright © by the Congress of Neurological Surgeons

04 agosto 2011

STROKE. Mechanical Thrombectomy in Acute Embolic Stroke Preliminary Results With the Revive Device

Stefan Rohde, MD; Stefan Haehnel, MD; Christian Herweh, MD; Mirko Pham, MD; Sibylle Stampfl, MD; Peter A. Ringleb, MD; Martin Bendszus, MD

Background and Purpose—The purpose of this study was to evaluate the safety and technical feasibility of a new thrombectomy device (Revive; Micrus Endovascular) in the endovascular treatment of acute ischemic stroke. Stroke. 2011; 42: 2954-2956 Published online before print August 4, 2011, doi: 10.1161/​STROKEAHA.111.616763. Copyright © 2011 American Heart Association, Inc. All rights reserved.

01 agosto 2011

STROKE. Intracranial Hemorrhage Is Much More Common After Carotid Stenting Than After Endarterectomy

Robert J. McDonald, MD, PhD; Harry J. Cloft, MD, PhD; David F. Kallmes, MD

Background and Purpose—Intracranial hemorrhage (ICH) is a rare and devastating complication of carotid revascularization. We sought to determine the prevalence of, type of, and risk factors associated with ICH among recipients of carotid endarterectomy (CEA) and carotid angioplasty and stenting (CAS) within the National Inpatient Sample (NIS). Stroke. 2011; 42: 2782-2787 Published online before print August 11, 2011, doi: 10.1161/​STROKEAHA.111.618769. Copyright © 2011 American Heart Association, Inc. All rights reserved.

18 agosto 2011

STROKE. Prevalence and Prognosis of Asymptomatic Vertebral Artery Origin Stenosis in Patients With Clinically Manifest Arterial Disease

Annette Compter, MD; H. Bart van der Worp, MD; Ale Algra, MD; L. Jaap Kappelle, MD on behalf of the Second Manifestations of ARTerial disease (SMART) Study Group

Background and Purpose—The risk of ischemic stroke in patients with asymptomatic vertebral artery stenosis is unknown. We examined the incidence of posterior circulation ischemic stroke in patients with asymptomatic stenosis of the vertebral artery origin (VAo). Stroke. 2011; 42: 2795-2800 Published online before print August 18, 2011, doi: 10.1161/​STROKEAHA.110.612903. Copyright © 2011 American Heart Association, Inc. All rights reserved.

07 julio 2011

STROKE. Atherosclerotic Plaque Vulnerability as an Explanation for the Increased Risk of Stroke in Elderly Undergoing Carotid Artery Stenting

Guus W. van Lammeren, MD; Boudewijn L. Reichmann, MD; Frans L. Moll, MD, PhD; Michiel L. Bots, MD, PhD; Dominique P.V. de Kleijn, PhD; Jean-Paul P.M. de Vries, MD, PhD; Gerard Pasterkamp, MD, PhD; Gert Jan de Borst, MD, PhD

Background and Purpose—Recent randomized trials showed an increased periprocedural risk for stroke with increasing age in patients undergoing carotid artery stenting. Manipulation of atherosclerotic plaques during carotid artery stenting can result in plaque rupture with subsequent superimposed thrombus formation, embolization, and cerebrovascular events. We hypothesized that atherosclerotic plaques become more unstable with increasing age and thereby might provide insight into the age-related increased risk of cerebrovascular events during carotid artery stenting. Stroke. 2011; 42: 2550-2555 Published online before print July 7, 2011, doi: 10.1161/​STROKEAHA.110.607382. Copyright © 2011 American Heart Association, Inc. All rights reserved.