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Condition: Atrial Fibrillation
Procedure: MRI Scan

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Total 412 results found since Jan 2013.

Management and outcomes of hypertrophic cardiomyopathy in young adults
CONCLUSIONS: In young adults with HCM, MACE are common in the short term, especially in obstructive HCM and women, mostly arrhythmic in origin. Prophylactic ICD implantation is frequent and does not strictly follow the guidelines, while the use of European/USA guidelines is helpful but imperfect in identifying SCD risk.PMID:33744178 | DOI:10.1016/j.acvd.2020.12.006
Source: Archives of Cardiovascular Diseases - March 21, 2021 Category: Cardiology Authors: Émilie Baron Nicole Karam Erwan Donal Tania Puscas Mariana Mirabel Anne Bacher Karim Wahbi Jean-Michael Mazzella Xavier Jeunemaitre Patricia Reant Albert Hag ège REMY, GEREMY working groups of the French Society of Cardiology Source Type: research

Left Atrial Remodeling and Cerebrovascular Disease Assessed by Magnetic Resonance Imaging in Continuously Monitored Patients
Conclusion: In AF-free patients, as documented by ILR monitoring, we found an independent association between LA passive emptying fraction and Fazekas score and between atrial volumes and lacunar infarcts.Cerebrovasc Dis
Source: Cerebrovascular Diseases - December 9, 2021 Category: Neurology Source Type: research

A Case of Diagnosis of Occipital Lobe Epilepsy Complicated by Right Hemianopsia Associated with Left Occipital Lobe Cerebral Infarction
We report a case of occipital lobe epilepsy (OLE) in a patient with occipital lobe stroke whose diagnosis was complicated by homonymous hemianopsia. An 81-year-old woman presented with a complaint of “blurred vision” on the right side and was kept under outpatient observation at the Hirabayashi Eye Clinic for homonymous lower right hemianopsia, glaucoma, and post-cataract surgery. Her past medical history included hypertension, angina pectoris, atrial fibrillation, diabetes mellitus, and lef t occipital lobe cerebral infarction. The corrected visual acuity and intraocular pressure were 20/16 and 12 mm Hg and 20/20 and ...
Source: Case Reports in Ophthalmology - March 17, 2022 Category: Opthalmology Source Type: research

Left Atrial Function and Arrhythmias in Relation to Small Vessel Disease on Brain MRI: The Multi-Ethnic Study of Atherosclerosis
Conclusions In individuals without a history of stroke or transient ischemic attack, alterations of LA structure and function, including enlargement, reduced strain, frequent premature atrial contractions, and intermittent AF, were associated with increased markers of small vessel disease. Detailed assessment of LA structure and function and extended ECG monitoring may enable early identification of individuals at greater risk of small vessel disease.PMID:36250665 | DOI:10.1161/JAHA.122.026460
Source: Atherosclerosis - October 17, 2022 Category: Cardiology Authors: Thomas R Austin Paul N Jensen Ilya M Nasrallah Mohamad Habes Tanweer Rashid Jeffrey B Ware Lin Yee Chen Philip Greenland Timothy M Hughes Wendy S Post Steven J Shea Karol E Watson Colleen M Sitlani James S Floyd Richard A Kronmal W T Longstreth Alain G Be Source Type: research

Left atrial flow velocity distribution and flow coherence using four‐dimensional FLOW MRI: A pilot study investigating the impact of age and pre‐ and postintervention atrial fibrillation on atrial hemodynamics
Conclusion:Flow‐sensitive MRI shows that patients with a history of AF had global hemodynamics in the LA similar to those of age‐matched volunteers. Additional studies with larger cohorts of AF patients and correlation with outcome are needed to further investigate the potential of atrial 4D flow MRI to flow patterns indicative of stroke risk in AF. J. Magn. Reson. Imaging 2012;. © 2012 Wiley Periodicals, Inc.
Source: Journal of Magnetic Resonance Imaging - January 4, 2013 Category: Radiology Authors: Jacob U. Fluckiger, Jeffrey J. Goldberger, Daniel C. Lee, Jason Ng, Richard Lee, Amita Goyal, Michael Markl Tags: Original Research Source Type: research

Microembolism and Catheter Ablation I: A Comparison of Irrigated Radiofrequency and Multielectrode-phased Radiofrequency Catheter Ablation of Pulmonary Vein Ostia Original Articles
Conclusions— Left atrial ablation with irrigated radiofrequency and PVAC catheters in swine is associated with microbubble and microembolus production. Avoiding overlap of electrodes 1 and 10 on PVAC should reduce the microembolic burden associated with this procedure.
Source: Circulation: Arrhythmia and Electrophysiology - February 19, 2013 Category: Cardiology Authors: Haines, D. E., Stewart, M. T., Dahlberg, S., Barka, N. D., Condie, C., Fiedler, G. R., Kirchhof, N. A., Halimi, F., Deneke, T. Tags: Ablation/ICD/surgery, Arrhythmias, clinical electrophysiology, drugs, Embolic stroke, Computerized tomography and Magnetic Resonance Imaging Original Articles Source Type: research

Microembolism and Catheter Ablation II: Effects of Cerebral Microemboli Injection in a Canine Model Original Articles
Conclusions— Cerebral embolization of air microbubbles or microparticulate debris that approximate the embolic sources from catheter ablation can create hyperintense DWI punctate lesions in a canine model. The location and size of the DWI/fluid attenuating inversion recovery lesions correlate with pathological findings.
Source: Circulation: Arrhythmia and Electrophysiology - February 19, 2013 Category: Cardiology Authors: Haines, D. E., Stewart, M. T., Barka, N. D., Kirchhof, N., Lentz, L. R., Reinking, N. M., Urban, J. F., Halimi, F., Deneke, T., Kanal, E. Tags: Ablation/ICD/surgery, Arrhythmias, clinical electrophysiology, drugs, Embolic stroke, Computerized tomography and Magnetic Resonance Imaging Original Articles Source Type: research

Left atrial appendage and thromboembolism: Shape matters
The assessment of the left atrial appendage (LAA) morphology is a relatively new concept as the use of computed tomography (CT) and magnetic resonance imaging has become common in the preablation assessment of patients with atrial fibrillation (AF). In the not so distant past, transesophageal echocardiogram (TEE) was the primary modality used to analyze the LAA. Three-dimensional rendering of the LAA has allowed assessment and classification of different morphologies and now their correlation with thromboembolic risk. In this issue of HeartRhythm, Kimura et al make a case for a specific LAA morphology being related to a hi...
Source: Heart Rhythm - February 18, 2013 Category: Cardiology Authors: Sumit Verma Tags: Editorial Commentary Source Type: research

Atrial Fibrillation, Silent Cerebral Ischemia, and Cognitive Function ∗
In this issue of the Journal, Gaita et al. (1) report findings from 270 patients, of whom 180 had atrial fibrillation and 90 with similar demographic and clinical characteristics did not have atrial fibrillation. All were free of clinical stroke at the time of the study, and all underwent brain magnetic resonance imaging (MRI). Silent cerebral ischemia (SCI) was defined as a focal, sharply demarcated area on MRI of hyperintensity on T2-weighted fluid-attenuated inversion recovery or isointensity on T1-weighted imaging. The numbers of SCI lesions, and the areas of the brain in which they were observed, were determined. ...
Source: Journal of the American College of Cardiology: Cardiovascular Interventions - November 11, 2013 Category: Cardiology Source Type: research