Assessing the atrial electromechanical coupling during atrial focal tachycardia, flutter, and fibrillation using electromechanical wave imaging in humans
نویسندگان
چکیده
منابع مشابه
Assessing the atrial electromechanical coupling during atrial focal tachycardia, flutter, and fibrillation using electromechanical wave imaging in humans
Minimally-invasive treatments of cardiac arrhythmias such as radio-frequency ablation are gradually gaining importance in clinical practice but still lack a noninvasive imaging modality which provides insight into the source or focus of an arrhythmia. Cardiac deformations imaged at high temporal and spatial resolution can be used to elucidate the electrical activation sequence in normal and pac...
متن کاملAtrial electromechanical coupling intervals in pregnant subjects
OBJECTIVE The aim of this study was to evaluate atrial conduction abnormalities obtained by tissue Doppler imaging (TDI) and electrocardiogram analysis in pregnant subjects. METHODS A total of 30 pregnant subjects (28 ± 4 years) and 30 controls (28 ± 3 years) were included. Systolic and diastolic left ventricular (LV) function was measured using conventional echocardiography and TDI. Inter-at...
متن کاملPredictive value of atrial electromechanical delay for atrial fibrillation recurrence.
BACKGROUND We investigated the predictive value of atrial electromechanical delay (AEMD) for recurrence of atrial fibrillation (AF) at 1-month after cardioversion. METHODS Seventy-seven patients with persistent AF were evaluated and finally 50 patients (12 men, 38 women) were included. All patients underwent transthoracic electrical DC cardioversion under amiodarone treatment. AEMD was measur...
متن کاملFocal atrial fibrillation presenting in the origin of atrial tachycardia
Introduction The preferential origin of atrial tachycardia (AT) is generally associated with specific anatomical atrial structures such as crista terminalis, tricuspid annulus, mitral annulus, and pulmonary veins. There are 3 major mechanisms of focal AT: enhanced automaticity, triggered activity, and microreentry. Focal AT can be eliminated via radiofrequency ablation with fairly good long-ter...
متن کاملAtrial electromechanical coupling parameters should be kept in mind during the assessment of atrial arrhythmia risk.
We read the article entitled ‘Paroxysmal atrial fibrillation in myotonic dystrophy type 1 patients: P wave duration and dispersion analysis’ with great interest1. In this research, they revealed that P wave dispersion (PWD) was significantly increased in patients with myotonic dystrophy type 1 (MD) compared to control subjects. MD is a genetic disorder affecting both the heart muscles and the c...
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ژورنال
عنوان ژورنال: Computers in Biology and Medicine
سال: 2015
ISSN: 0010-4825
DOI: 10.1016/j.compbiomed.2015.08.005