Correlation between QRS duration and ejection fraction among 679 patients with ejection fraction =0.40 and congestive heart failure
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چکیده
منابع مشابه
Ethnic differences in the association of QRS duration with ejection fraction and outcome in heart failure
BACKGROUND QRS duration (QRSd) criteria for device therapy in heart failure (HF) were derived from predominantly white populations and ethnic differences are poorly understood. METHODS We compared the association of QRSd with ejection fraction (EF) and outcomes between 839 Singaporean Asian and 11 221 Swedish white patients with HF having preserved EF (HFPEF)and HF having reduced EF (HFREF) w...
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Congestive heart failure (CHF) is a major cause of mortality and morbidity. Among patients with heart failure, sleep disordered breathing (SDB) is a common problem. Current evidence suggests that SDB, particularly central SDB, is more prevalent in patients with CHF than in the general population, but it is underdiagnosed as SDB symptoms that are less prevalent in CHF. The main aims of this stud...
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متن کاملHeart Failure With Preserved Ejection Fraction
Symptomatic heart failure, despite preserved left ventricular (LV) ejection fraction, is a well-recognized phenomenon. This manifestation of diastolic dysfunction is associated with increased morbidity and mortality and can be attributed to a variety of pathogeneses, including diabetes mellitus, hypertension, infiltrative processes, and obesity. Unlike in systolic heart failure, where LV ejecti...
متن کاملHeart Failure with Preserved Ejection Fraction
1. Demonstrate the association between heart failure with preserved ejection fraction (HFpEF) and survival. 2. Given a patient with heart failure (HF), recognize HFpEF on the basis of clinical signs and symptoms, physical examination, echocardiography, and radiographic findings. 3. Classify patients at high risk of hospitalization and mortality through assessing risk factors, clinical presentat...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2003
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(03)80803-3