Journal of cardiovascular electrophysiology
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J. Cardiovasc. Electrophysiol. · Jun 2012
Time course and prognostic implications of QT interval in patients with coronary artery disease undergoing coronary bypass surgery.
The aim of the present study was to determine the prognostic implication of preoperative QT interval in relation to overall death and sudden cardiac death after coronary bypass surgery and to investigate the course of QT interval after surgery. ⋯ Preoperative QT interval was an independent predictor of overall death and sudden cardiac death after isolated coronary bypass surgery.
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J. Cardiovasc. Electrophysiol. · Jun 2012
Late potentials abolition as an additional technique for reduction of arrhythmia recurrence in scar related ventricular tachycardia ablation.
To evaluate the efficacy of radiofrequency ventricular tachycardia (VT) ablation targeting complete late potential (LP) activity. ⋯ LP abolition is an effective endpoint of VT ablation and its prognostic value compares favorably to that achieved by programmed electrical stimulation.
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J. Cardiovasc. Electrophysiol. · Jun 2012
Review Meta AnalysisEfficacy of cardiac autonomic denervation for atrial fibrillation: a meta-analysis.
Adjunctive complex fractionated atrial electrograms (CFAE) ablation or ganglionated plexi (GP) ablation have been proposed as new strategies to increase the elimination of AF, but the difference between CFAE/GP ablation and pulmonary vein isolation (PVI), as well as the combined effect of CFAE/GP plus PVI ablation were unclear. This meta-analysis was designed to determine whether adjunctive cardiac autonomic denervation (CAD) was effective for the elimination of AF, and whether CAD alone was superior to PVI in AF patients. ⋯ This study suggested that CAD plus PVI significantly increase the freedom from recurrence of AF both in paroxysmal and nonparoxysmal patients. However, when compared alone, the benefit of CAD was not superior to PVI.
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J. Cardiovasc. Electrophysiol. · Jun 2012
Depression and severe heart failure: benefits of cardiac resynchronization therapy.
The relationship between depression and heart failure is neither coincidental nor trivial, since depression is a powerful predictor of re-hospitalization and mortality. We prospectively studied the prevalence and impact of depression on the clinical outcomes of patients attending for cardiac resynchronization therapy (CRT). We specifically examined whether patients with depression have a different rate of response to CRT and whether CRT has an effect on depressive symptoms. ⋯ We found a high prevalence of depressive symptoms in patients receiving CRT systems. Patients with depression should not be excluded from CRT, because they demonstrate a similar rate of response than the persons without depression and the responders are less likely to be depressed at 6 months.