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Source: Heart Rhythm
Condition: Ischemic Stroke
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Total 61 results found since Jan 2013.
Irregularity and lack of p waves in short tachycardia episodes predict atrial fibrillation and ischemic stroke
Atrial fibrillation (AF) is defined as an irregular supraventricular tachycardia (SVT) without p waves, with duration>30 seconds. Whether AF characteristics during short SVT episodes predict AF and stroke is not known.
Source: Heart Rhythm - February 12, 2018 Category: Cardiology Authors: Linda S.B. Johnson, Anders P. Persson, Per Wollmer, Steen Juul-M öller, Tord Juhlin, Gunnar Engström Source Type: research
Anticoagulation for atrial fibrillation in dialysis patients: What is known and what does the future hold?
The association between atrial fibrillation and stroke is well established, and in the general population, anticoagulation with warfarin can reduce the incidence of stroke by 60% with an acceptable bleeding risk.1,2 Patients who are on hemodialysis have an increased prevalence of atrial fibrillation, possibly secondary to comorbid conditions and hemodialysis itself causing dramatic swings in fluid and electrolytes and affecting cardiac dimensions.3 There are also substantially higher rates of ischemic stroke in this population attributable both to frequently co-occurring traditional stroke risk factors and to the increased...
Source: Heart Rhythm - February 18, 2017 Category: Cardiology Authors: Timothy M. Markman, Saman Nazarian Tags: Editorial Commentary Source Type: research
Editorial Commentary: Anticoagulation for atrial fibrillation in dialysis patients: What is known and what does the future hold?
The association between atrial fibrillation and stroke is well established and, in the general population, anticoagulation with warfarin can reduce the incidence of stroke by 60% with an acceptable bleeding risk.1, 2 Patients who are on hemodialysis have an increased prevalence of atrial fibrillation possibly secondary to comorbid conditions and hemodialysis itself causing dramatic swings in fluid and electrolytes and affecting cardiac dimensions.3 There are also substantially higher rates of ischemic stroke in this population attributable both to frequently co-occurring traditional stroke risk factors as well as the incre...
Source: Heart Rhythm - February 18, 2017 Category: Cardiology Authors: Timothy M. Markman, Saman Nazarian Source Type: research
Virchow triad and beyond in atrial fibrillation
Atrial fibrillation (AF), the most common type of arrhythmia in adults, is associated with a 5-fold increase in the incidence of ischemic stroke. Stroke in patients with AF is believed to be mostly cardioembolic caused by left atrial thrombi and is an important cause for hospitalizations and cardiovascular deaths. Although various kinds of direct oral anticoagulants have been developed and used for the prevention hopefully decreasing this fateful event, more knowledge about the left atrial thrombi would be required to improve and refine the pharmacological stroke prevention in AF.
Source: Heart Rhythm - September 7, 2016 Category: Cardiology Authors: Takeshi Yamashita Tags: Editorial Commentary Source Type: research
Role of TEE before atrial fibrillation ablation: Is less really more?
Catheter ablation of atrial fibrillation has become standard therapy for patients with refractory symptoms despite antiarrhythmic drugs.1 Aside from long-term stroke risk in this patient population,2 a periprocedural transient ischemic attack (TIA) or stroke is a potential complication with reported event rates of
Source: Heart Rhythm - September 17, 2015 Category: Cardiology Authors: Nilesh Mathuria Tags: Editorial Commentary Source Type: research
EP News: Allied Professionals
In this study by van Diepen et al (Am Heart J 2014;168:60, PMID 24952861) mined data from several large Canadian databases to find 32,160 patients with NVAF undergoing noncardiac surgery over a 10-year period and then applied several risk scores to this group to see which best predicted 30-day mortality, stroke, transient ischemic attack, or systemic embolism.
Source: Heart Rhythm - August 4, 2014 Category: Cardiology Authors: Erica S. Zado Tags: EP News--Section Editors: Penelope A. Boyden, N.A. Mark Estes III, Erica S. Zado Source Type: research
Incidence and Prediction of Ischemic Stroke among Atrial Fibrillation Patients with End-Stage Renal Disease Requiring Dialysis
Source: Heart Rhythm - June 18, 2014 Category: Cardiology Authors: Tze-Fan Chao, Chia-Jen Liu, Kang-Ling Wang, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Fa-Po Chung, Jo-Nan Liao, Tzeng-Ji Chen, Gregory Y.H. Lip, Shih-Ann Chen Source Type: research
Incidence and prediction of ischemic stroke among atrial fibrillation patients with end-stage renal disease requiring dialysis
Renal dysfunction is a significant risk factor for ischemic stroke in atrial fibrillation (AF). However, the incidence of ischemic stroke and how to predict its occurrence among AF patients with end-stage renal disease (ESRD) are unclear.
Source: Heart Rhythm - June 18, 2014 Category: Cardiology Authors: Tze-Fan Chao, Chia-Jen Liu, Kang-Ling Wang, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Fa-Po Chung, Jo-Nan Liao, Tzeng-Ji Chen, Gregory Y.H. Lip, Shih-Ann Chen Source Type: research
Clinical significance of atrial fibrillation detected by cardiac implantable electronic devices
The detection of atrial fibrillation (AF) by a cardiac implantable electronic device (CIED) in patients without a prior history of AF is increasing. This trend is the result of the increased number of CIEDs being implanted in a population whose multiple medical comorbidities are known to predispose to AF. Cardiac implantable electronic device–detected atrial fibrillation (CDAF) is independently associated with the development of ischemic stroke, and the annual risk may depend on both total AF burden and individual risk factors. No data evaluating the benefit of oral anticoagulation in this population are available, which...
Source: Heart Rhythm - January 6, 2014 Category: Cardiology Authors: Anthony E. DeCicco, Jonathan B. Finkel, Arnold J. Greenspon, Daniel R. Frisch Tags: Contemporary Review--Section Editor: Sami Viskin Source Type: research
Patients treated with catheter ablation for ventricular tachycardia after an ICD shock have lower long-term rates of death and heart failure hospitalization than do patients treated with medical management only
Background: Ventricular arrhythmias in patients with implantable cardioverter-defibrillators (ICDs) adversely affect outcomes. Antiarrhythmic approaches to ventricular tachycardia (VT) have variable efficacy and may increase risk of ventricular arrhythmias, worsening cardiomyopathy, and death. Comparatively, VT ablation is an alternative approach that may favorably affect outcomes.Objective: To further explore the effect on long-term outcomes after catheter ablation of VT, we compared patients with history of ICD shocks who did not undergo ablation, patients with a history of ICD shocks that underwent ablation, and patient...
Source: Heart Rhythm - December 12, 2013 Category: Cardiology Authors: T. Jared Bunch, J. Peter Weiss, Brian G. Crandall, John D. Day, Heidi T. May, Tami L. Bair, Jeffrey S. Osborn, Charles Mallender, Avi Fischer, Kyle J. Brunner, Srijoy Mahapatra Tags: Ventricular Tachycardia Source Type: research
Additive effect of the metabolic syndrome score to the conventional CHADS2 score for the thromboembolic risk stratification of patients with atrial fibrillation
Conclusions: We, for the first time, demonstrated that metabolic syndrome components were associated with thromboembolic risk in Taiwanese patients with AF. In addition to the conventional CHADS2 scheme, the calculation of the CHADS2-MS score provides additional information on stroke risk assessment.
Source: Heart Rhythm - November 18, 2013 Category: Cardiology Authors: Chia-Ti Tsai, Shu-Hsuan Chang, Sheng-Nan Chang, Juey-Jen Hwang, Cho-Kai Wu, Yi-Chih Wang, Chuen-Den Tseng, Huei-Ming Yeh, Ling-Ping Lai, Fu-Tien Chiang, Jiunn-Lee Lin Tags: Atrial Fibrillation Source Type: research
Relationship between left atrial appendage morphology and stroke in patients with atrial fibrillation
Background: Atrial fibrillation (AF) is an important cause of stroke. Given the morbidity and mortality associated with stroke, the risk stratification of patients based on left atrial appendage (LAA) characteristics is of great interest.Objective: To explore the association between LAA morphology and LAA characteristics including the extent of trabeculations, orifice diameter, and length with prevalent stroke in a large cohort of patients with drug refractory AF who underwent AF ablation to develop mechanistic insight regarding the risk of stroke.Methods: An institutional cohort of 1063 patients referred for AF ablation f...
Source: Heart Rhythm - September 27, 2013 Category: Cardiology Authors: Irfan M. Khurram, Jane Dewire, Michael Mager, Farhan Maqbool, Stefan L. Zimmerman, Vadim Zipunnikov, Roy Beinart, Joseph E. Marine, David D. Spragg, Ronald D. Berger, Hiroshi Ashikaga, Saman Nazarian, Hugh Calkins Tags: Atrial Fibrillation Source Type: research
Atrial fibrillation ablation patients have long-term stroke rates similar to patients without atrial fibrillation regardless of CHADS2 score
Background: Atrial fibrillation (AF) is a leading cause of total and fatal ischemic stroke. Stroke risk after AF ablation appears to be favorably affected; however, it is largely unknown whether the benefit extends to all stroke CHADS2 risk profiles of AF patients.Objective: To determine if ablation of atrial fibrillation reduces stroke rates in all risk groups.Methods: A total of 4212 consecutive patients who underwent AF ablation were compared (1:4) with 16,848 age-/sex-matched controls with AF (no ablation) and to 16,848 age-/sex-matched controls without AF. Patients were enrolled from the large ongoing prospective Inte...
Source: Heart Rhythm - July 8, 2013 Category: Cardiology Authors: T. Jared Bunch, Heidi T. May, Tami L. Bair, J. Peter Weiss, Brian G. Crandall, Jeffrey S. Osborn, Charles Mallender, Jeffrey L. Anderson, Brent J. Muhlestein, Donald L. Lappe, John D. Day Tags: Ablation Source Type: research
