196,060 research outputs found
Aggressive risk factor reduction study for atrial fibrillation and implications for the outcome of ablation: the ARREST-AF Cohort Study
No full textAbstract not availableRajeev K. Pathak, Melissa E. Middeldorp, Dennis H. Lau, Abhinav B. Mehta, Rajiv Mahajan, Darragh Twomey, Muayad Alasady, Lorraine Hanley, Nicholas A. Antic, R. Doug McEvoy, Jonathan M. Kalman, Walter P. Abhayaratna, Prashanthan Sander
Catheter ablation for ventricular tachycardia
No full textSudden cardiac death due to ventricular arrhythmias remains the most common cause of death in developed nations. Implantable cardioverter defibrillators have been shown to improve mortality in high-risk groups for ventricular tachyarrhythmias, but they are not curative, with the risk of arrhythmia recurrence remaining unaltered. It is also important to remember that ventricular tachycardia (VT) in the setting of a structurally normal heart is often not associated with an increased risk of sudden death and catheter ablation is a potentially curative procedure in this cohort. Recent advances in catheter ablation for VT have increased the efficacy in creating adequate lesions, accurate three-dimensional maps and mapping haemodynamically unstable VT, all of which have increased the utility of this modality in the treatment of ventricular arrhythmias. In this article, we review the recent advances that have fuelled renewed interest in catheter ablation of VT, its clinical utility and who should be referred.H. S. Lim, C. B. Singleton, M. Alasady and A. D. McGaviga
Real-time CartoSound imaging of the esophagus: a comparison to computed tomography
No full textLauren Wilson, Anthony G. Brooks, Dennis H. Lau, Hany Dimitri, Gautam Sharma, Han S. Lim, Muayad Alasady, Glenn D. Young, Prashanthan Sander
Successful catheter ablation decreases platelet activation and improves endothelial function in patients with atrial fibrillation
No full textAbstract not availableHan S. Lim, Scott R. Willoughby, Carlee Schultz, Adhiraj Chakrabarty, Muayad Alasady, Dennis H. Lau, Kurt C. Roberts-Thomson, Matthew I. Worthley, Glenn D. Young, Prashanthan Sander
New onset atrial fibrillation and acute coronary syndrome
No full textDespite advances in the diagnosis and management of acute coronary syndrome (ACS), atrial fibrillation (AF) remains a commonly encountered complication leading to adverse short- and long-term outcomes across the whole spectrum of ACS. At present, the underlying mechanisms of AF in myocardial ischemia remain incompletely understood. This article evaluates the incidence and trends of new-onset AF in ACS, its impact on ACS management and the associated prognostic significance in patients with acute ischemic heart disease. The safety and use of oral anticoagulation treatment in ACS patients on multiple antiplatelet agents are also explored. Further experimental and clinical studies are needed to improve current understanding and management of new-onset AF in ACS patients.Dennis H Lau, Muayad Alasady, Anthony G Brooks and Prashanthan Sander
Thrombogenic risk in patients with atrial fibrillation
No full textAbstract not availableHan S. Lim, Scott R. Willoughby, Carlee Schultz, Muayad Alasady, Geetanjali Rangnekar, Jerry Dang, Cheryl Gan, Dennis H. Lau, Kurt C. Roberts-Thomson, Glenn D. Young, Matthew I. Worthley, Prashanthan Sander
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Approach to the difficult transseptal: Diathermy facilitated left atrial access
No full textPercutaneous transseptal left atrial (LA) access is increasingly becoming a routine procedure in the electrophysiology and cardiac catheterisation laboratories. Our aim was to review an unselected large series of this procedure performed over a period of five years. We clinically characterised difficult cases and presented a method of safe and expeditious LA access. Overall, 543 transseptal punctures were performed. Of those, 10 were classified as difficult, with failure to access the LA in three or more attempts. In all 10 cases, surgical electrocautery was successfully used to facilitate needle puncture of the septum. All patients subsequently underwent an uncomplicated procedure. In conclusion, we describe a method to trouble-shoot the difficult transseptal access procedure, outlining the clinical characteristics, echocardiographic features and special precautions that need to be considered when utilising this method.Hany S. Abed, Muayad Alasady, Dennis H. Lau, Han S. Lim, and Prashanthan Sander
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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