Acute Stroke Intervention: A Systematic Review Prabhakaran, Shyam; Ruff, Ilana; Bernstein, Richard A
JAMA : the journal of the American Medical Association,
04/2015, Letnik:
313, Številka:
14
Journal Article
Recenzirano
IMPORTANCE: Acute ischemic stroke is a major cause of mortality and morbidity in the United States. We review the latest data and evidence supporting catheter-directed treatment for proximal artery ...occlusion as an adjunct to intravenous thrombolysis in patients with acute stroke. OBJECTIVE: To review the pathophysiology of acute brain ischemia and infarction and the evidence supporting various stroke reperfusion treatments. EVIDENCE REVIEW: Systematic literature search of MEDLINE databases published between January 1, 1990, and February 11, 2015, was performed to identify studies addressing the role of thrombolysis and mechanical thrombectomy in acute stroke management. Studies included randomized clinical trials, observational studies, guideline statements, and review articles. Sixty-eight articles (N = 108 082 patients) were selected for review. FINDINGS: Intravenous thrombolysis is the mainstay of acute ischemic stroke management for any patient with disabling deficits presenting within 4.5 hours from symptom onset. Randomized trials have demonstrated that more patients return to having good function (defined by being independent and having slight disability or less) when treated within 4.5 hours after symptom onset with intravenous recombinant tissue plasminogen activator (IV rtPA) therapy. Mechanical thrombectomy in select patients with acute ischemic stroke and proximal artery occlusions has demonstrated substantial rates of partial or complete arterial recanalization and improved outcomes compared with IV rtPA or best medical treatment alone in multiple randomized clinical trials. Regardless of mode of reperfusion, earlier reperfusion is associated with better clinical outcomes. CONCLUSIONS AND RELEVANCE: Intravenous rtPA remains the standard of care for patients with moderate to severe neurological deficits who present within 4.5 hours of symptom onset. Outcomes for some patients with acute ischemic stroke and moderate to severe neurological deficits due to proximal artery occlusion are improved with endovascular reperfusion therapy. Efforts to hasten reperfusion therapy, regardless of the mode, should be undertaken within organized stroke systems of care.
These parameters were developed by the Joint Task Force on Practice Parameters (JTFPP), representing the American Academy of Allergy, Asthma & Immunology (AAAAI); the American College of Allergy, ...Asthma & Immunology (ACAAI); and the Joint Council of Allergy, Asthma & Immunology. The AAAAI and ACAAI have jointly accepted responsibility for establishing “The diagnosis and management of acute and chronic urticaria: 2014 update.” This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single individual, including those who served on the JTFPP, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Any request for information about or an interpretation of these practice parameters by the AAAAI or ACAAI should be directed to the Executive Offices of the AAAAI, the ACAAI, and the Joint Council of Allergy, Asthma & Immunology. The JTFPP understands that the cost of diagnostic tests and therapeutic agents is an important concern that might appropriately influence the work-up and treatment chosen for a given patient. The JTFPP recognizes that the emphasis of our primary recommendations regarding a medication might vary, for example, depending on third-party payer issues and product patent expiration dates. However, because a given test or agent's cost is so widely variable and there is a paucity of pharmacoeconomic data, the JTFPP generally does not consider cost when formulating practice parameter recommendations. In extraordinary circumstances, when the cost/benefit ratio of an intervention is prohibitive, as supported by pharmacoeconomic data, commentary might be provided. These parameters are not designed for use by pharmaceutical companies in drug promotion. The JTFPP is committed to ensuring that the practice parameters are based on the best scientific evidence that is free of commercial bias. To this end, the parameter development process includes multiple layers of rigorous review. These layers include the workgroup convened to draft the parameter, the task force reviewers, and peer review by members of each sponsoring society. Although the task force has the final responsibility for the content of the documents submitted for publication, each reviewer comment will be discussed, and reviewers will receive written responses to comments, when appropriate. To preserve the greatest transparency regarding potential conflicts of interest, all members of the JTFPP and the practice parameter workgroups will complete a standard potential conflict of interest disclosure form, which will be available for external review by the sponsoring organization and any other interested individual. In addition, before confirming the selection of a Work Group chairperson, the Joint Task Force will discuss and resolve all relevant potential conflicts of interest associated with this selection. Finally, all members of parameter workgroups will be provided a written statement regarding the importance of ensuring that the parameter development process is free of commercial bias. Practice parameters are available online at www.jcaai.org and www.allergyparameters.org.
In patients with cryptogenic stroke, undetected paroxysmal atrial fibrillation may be a cause of the stroke. In this randomized trial, an insertable cardiac monitor was superior to conventional ...cardiac monitoring for detecting atrial fibrillation in patients with cryptogenic stroke.
Ischemic stroke is among the leading causes of death and disability.
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The cause remains unexplained after routine evaluation in 20 to 40% of cases, resulting in the classification, by exclusion, of cryptogenic stroke.
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Atrial fibrillation is a well-recognized cause of ischemic stroke,
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though the risk is markedly reduced by anticoagulation
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,
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Documentation of atrial fibrillation is required to initiate anticoagulant therapy after ischemic stroke.
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In the absence of documented atrial fibrillation, antiplatelet agents are recommended.
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Given the often paroxysmal and asymptomatic nature of atrial fibrillation, it may not be detected with the use of traditional monitoring techniques.
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Strategies . . .
These parameters were developed by the Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma & Immunology (AAAAI); the American College of Allergy, Asthma & ...Immunology (ACAAI); and the Joint Council of Allergy, Asthma and Immunology. The AAAAI and the ACAAI have jointly accepted responsibility for establishing “The Diagnosis and Management of Anaphylaxis Practice Parameter: 2010 Update.” This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single individual, including those who served on the Joint Task Force, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Any request for information about or an interpretation of these practice parameters by the AAAAI or ACAAI should be directed to the Executive Offices of the AAAAI, the ACAAI, or the Joint Council of Allergy, Asthma and Immunology. These parameters are not designed for use by pharmaceutical companies in drug promotion.
In a randomized trial, dabigatran (110 mg per day or 150 mg per day) was no more effective than aspirin (100 mg per day) in preventing a second stroke after an embolic stroke of undetermined source. ...The occurrence of major bleeding was similar in the two treatment groups.
The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single ...individual, including those who served on the Joint Task Force, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Chief Editors Linda Cox, MD Department of Medicine Nova Southeastern University College of Osteopathic Medicine Davie, Florida Richard Lockey, MD Division of Allergy and Immunology Department of Internal Medicine University of South Florida College of Medicine and James A. Haley Veterans' Hospital Tampa, Florida Harold Nelson, MD Department of Medicine National Jewish Health Denver, Colorado Work Group Members Christopher Calabria, MD Glen Burnie, Maryland Thomas Chacko, MD Roswell, Georgia Ira Finegold, MD New York, New York Michael Nelson, MD, PhD Washington, DC Richard Weber, MD Denver, Colorado Joint Task Force Reviewers David Bernstein, MD Department of Medicine and Environmental Health University of Cincinnati College of Medicine Cincinnati, Ohio David A. Khan, MD Department of Internal Medicine University of Texas Southwestern Medical Center Dallas, Texas Joann Blessing-Moore, MD Departments of Medicine and Pediatrics Stanford University Medical Center Department of Immunology Palo Alto, California David M. Lang, MD Allergy/Immunology Section Division of Medicine Allergy and Immunology Fellowship Training Program Cleveland Clinic Foundation Cleveland, Ohio Richard A. Nicklas, MD Department of Medicine George Washington Medical Center Washington, DC John Oppenheimer, MD Department of Internal Medicine New Jersey Medical School Pulmonary and Allergy Associates Morristown, New Jersey Jay M. Portnoy, MD Section of Allergy, Asthma & Immunology The Children's Mercy Hospital Department of Pediatrics University of Missouri-Kansas City School of Medicine Kansas City, Missouri Christopher Randolph, MD Yale University New Haven, Connecticut Diane E. Schuller, MD Department of Pediatrics Pennsylvania State University Milton S. Hershey Medical College Hershey, Pennsylvania Sheldon L. Spector, MD Department of Medicine UCLA School of Medicine Los Angeles, California Stephen A. Tilles, MD Department of Medicine University of Washington School of Medicine Redmond, Washington Dana V. Wallace, MD Department of Medicine Nova Southeastern University Davie, Florida Invited Reviewers Don Aaronson, MD, JD, MPH Chicago, Illinois Desiree Larenas-Linnemann, MD Mexico city, Mexico Bryan Leatherman, MD Gulfport, Mississippi Sandra Y. Lin, MD Johns Hopkins Department of Otolaryngology-Head & Neck Surgery Baltimore, Maryland Oral and sublingual immunotherapy for food hypersensitivity Wesley Burkes, MD Duke University Raleigh, North Carolina Venom hypersensitivity David Golden, MD Baltimore, Maryland Theodore M. Freeman, MD Helotes, Texas Allergen extract section Derek Constable, PhD Spokane, Washington Robert Esch, PhD Lenoir, North Carolina Larry Garner, CPT, BA Spokane, Washington Richard Lankow, PhD Round Rock, Texas Greg Plunkett, PhD Round Rock, Texas Ronald Rabin, MD Rockville, Maryland Assigned Reviewers Paul Greenberger, MD Northwestern University Feinberg School of Medicine Chicago, Illinois Bryan Martin, DO Ohio State University Columbus, Ohio Preface This document was developed by the Joint Task Force on Practice Parameters, which represents the American Academy of Allergy, Asthma & Immunology (AAAAI); the American College of Allergy, Asthma & Immunology (ACAAI); and the Joint Council of Allergy, Asthma & Immunology (JCAAI).
These parameters were developed by the Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma & Immunology; the American College of Allergy, Asthma and ...Immunology; and the Joint Council of Allergy, Asthma and Immunology. The American Academy of Allergy, Asthma & Immunology (AAAAI) and the American College of Allergy, Asthma and Immunology (ACAAI) have jointly accepted responsibility for establishing “The diagnosis and Management of Rhinitis: An Updated Practice Parameter.” This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single individual, including those who served on the Joint Task Force, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Any request for information about or an interpretation of these practice parameters by the AAAAI or ACAAI should be directed to the Executive Offices of the AAAAI, the ACAAI, and the Joint Council of Allergy, Asthma and Immunology. These parameters are not designed for use by pharmaceutical companies in drug promotion.
These parameters were developed by the Joint Task Force on Practice Parameters, representing the American Academy of Allergy, Asthma and Immunology; the American College of Allergy, Asthma and ...Immunology; and the Joint Council of Allergy, Asthma and Immunology.
The American Academy of Allergy, Asthma and Immunology (AAAAI) and the American College of Allergy, Asthma and Immunology (ACAAI) have jointly accepted responsibility for establishing “The diagnosis and management of anaphylaxis: an updated practice parameter.” This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients. Because this document incorporated the efforts of many participants, no single individual, including those who served on the Joint Task force, is authorized to provide an official AAAAI or ACAAI interpretation of these practice parameters. Any request for information about or an interpretation of these practice parameters by the AAAAI or ACAAI should be directed to the Executive Offices of the AAAAI, the ACAAI, and the Joint Council of Allergy, Asthma and Immunology. These parameters are not designed for use by pharmaceutical companies in drug promotion.
This is a complete and comprehensive document at the current time. The medical environment is a changing environment, and not all recommendations will be appropriate for all patients.
Cryptogenic Stroke: Research and Practice Yaghi, Shadi; Bernstein, Richard A; Passman, Rod ...
Circulation research,
2017-February-3, 2017-Feb-03, 2017-02-03, 20170203, Letnik:
120, Številka:
3
Journal Article
Recenzirano
BACKGROUND:Cryptogenic stroke accounts for 30% to 40% of ischemic stroke. It is essential to determine the possible culprit because this will improve secondary stroke prevention strategies.
...METHODS:We performed a narrative nonsystematic review of the literature that included randomized trials, exploratory comparative studies, and case series on cryptogenic stroke.
RESULTS:There are several possible mechanisms implicated in cryptogenic stroke, including occult paroxysmal atrial fibrillation, patent foramen ovale, aortic arch atherosclerosis, atrial cardiopathy, and substenotic atherosclerosis. The heterogeneity of these mechanisms leads to differences in stroke prevention strategies among cryptogenic stroke patients.
CONCLUSIONS:A thorough diagnostic evaluation is essential to determine the pathogenesis in cryptogenic stroke. This approach, in addition to risk factor management and lifestyle modifications, will lead to improved stroke prevention strategies in patients with cryptogenic stroke. This will allow for targeted clinical trials to improve stroke prevention strategies in this patient population.
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