منابع مشابه
A noninvasive imaging modality for cardiac arrhythmias.
BACKGROUND The last decade witnessed an explosion of information regarding the genetic, molecular, and mechanistic basis of heart disease. Translating this information into clinical practice requires the development of novel functional imaging modalities for diagnosis, localization, and guided intervention. A noninvasive modality for imaging cardiac arrhythmias is not yet available. Present ele...
متن کاملCardiac arrhythmias.
Disorders of cardiac rate and rhythm represent major causes of mortality and morbidity in developed countries. Sudden cardiac death, defined as death within 1 hour of an unexpected change in cardiovascular status, kills more than 300,000 people each year in the United States (29), whereas nonlethal arrhythmias account for much additional disability. Atrial fibrillation, a leading cause of cereb...
متن کاملCardiac Arrhythmias
Cardiac arrhythmias are disturbances in the rhythm of the heart, manifested by irregularity or by abnormally fast rates (tachycardias) or abnormally slow rates (bradycardias). Patients who perceive these abnormalities most frequently observe palpitations,which somedescribe as the sensation of ‘my heart turning over in my chest’, or awareness that their hearts are beating rapidly or slowly. Othe...
متن کاملThree-dimensional panoramic imaging of cardiac arrhythmias in rabbit heart.
Cardiac fluorescent optical imaging provides the unique opportunity to investigate the dynamics of propagating electrical waves during ventricular arrhythmias and the termination of arrhythmias by strong electric shocks. Panoramic imaging systems using charge-coupled device (CCD) cameras as the photodetector have been developed to overcome the inability to monitor electrical activity from the e...
متن کاملSYMPOSIUM Cardiac Arrhythmias (Part 2) Hemodynamic Sequelae of Cardiac Arrhythmias
The hemodynamic consequences of cardiac arrhythmias depend on various factors, including the ventricular rate and the duration of the abnormal rate, the temporal relationship between atrial and ventricular activity, the sequence of ventricular activation, the functional state of the heart, the irregularity of the cycle length, associated drug therapy, the peripheral vascular vasomotor system, d...
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ژورنال
عنوان ژورنال: Science Translational Medicine
سال: 2011
ISSN: 1946-6234,1946-6242
DOI: 10.1126/scitranslmed.3002806