Cardiac CT angiography has become an important tool for the diagnosis and treatment of congestive heart failure. Differentiation of ischemic from nonischemic cardiomyopathy; evaluation of myocardial perfusion; characterization of hypertrophic cardiomyopathy, left ventricular noncompaction, and arrhythmogenic right ventricular dysplasia; and delineation of congenital heart defects and valvular a...

Congenitally corrected transposition of the great arteries is a rare heart defect that can be associated with systemic ventricular dysfunction and conduction disturbances. The use of cardiac resynchronization therapy in patients with congenital heart disease is not fully established. The authors report a case of cardiac resynchronization therapy in a 31-year-old woman with a history of congenit...

Heart failure affects millions of patients all over the world, and its treatment is a major clinical challenge. Cardiac dyssynchrony is common among patients with advanced heart failure. Resynchronization therapy is a major advancement in heart failure management, but unfortunately not all patients respond to this therapy. Hence, many diagnostic tests have been used to predict the response and ...

INTRODUCTION AND OBJECTIVES The objective was to determine what percentage of patients admitted for heart failure met criteria for cardiac resynchronization therapy. METHODS The study involved registry data on heart failure admissions at 16 public hospitals in Andalusia, Spain between May and July 2004. Criteria for cardiac resynchronization therapy from American College of Cardiology and Ame...

Van der Wall EE, Schalij MJ, Bax JJ. Effect of postero-lateral scar tissue on clinical and echocardiographic improvement following cardiac resynchronization therapy. Circulation 2006;113:969–976. 5. Butter C, Auricchio A, Stellbrink C, Ding J, Yu Y, Kramer A, Huvelle E, Pochet T, Spinelli J, Fleck E. Effect of resynchronization therapy stimulation site on the systolic function of heart failure ...

BACKGROUND Diabetes mellitus is an independent risk factor of increased morbidity and mortality in patients with heart failure. Cardiac resynchronization therapy (CRT), a pacemaker-based therapy for dyssynchronous heart failure, improves cardiac performance and quality of life, but its effect on mortality in patients with diabetes is uncertain. METHODS We performed a meta-analysis of results ...

BACKGROUND Cardiac resynchronization reduces symptoms and improves left ventricular function in many patients with heart failure due to left ventricular systolic dysfunction and cardiac dyssynchrony. We evaluated its effects on morbidity and mortality. METHODS Patients with New York Heart Association class III or IV heart failure due to left ventricular systolic dysfunction and cardiac dyssyn...

Cardiac resynchronization therapy improves clinical symptoms and prognosis of heart failure patients. However, it has been shown that up to 40% of patients do not respond to this therapy. Three main determinants of cardiac resynchronization therapy response have been identified: left ventricular dyssynchrony, left ventricular lead position, and extent and location of myocardial scar tissue. Two...

Cardiac Resynchronization Therapy. Cardiac resynchronization therapy (CRT) is a recently developed approach to treat dilated heart failure with discoordinate contraction. Such dyssynchrony typically stems from electrical delay that then translates into mechanical delay between the septal and lateral walls. Over the past decade, many studies have examined the pathophysiology of cardiac dyssynchr...

Cardiac resynchronization defibrillators have been demonstrated to reduce both mortality and heart failure in patients with significant ventricular dysfunction and widened QRS. The influence of cardiac resynchronization therapy (CRT) on ventricular arrhythmias, however, is less certain. A systematic review of randomized controlled trials of more advanced heart failure populations with New York ...