نتایج جستجو برای: lvef

تعداد نتایج: 4570  

Journal: :European heart journal 2007
Aengus Murphy John J V McMurray

In the last decade, seminal studies from Europe, the USA, and Australasia have defined the epidemiology of heart failure and left ventricular systolic dysfunction in the population. One of those studies, the aptly named Echocardiographic Heart of England Screening study (ECHOES), enrolled over 6000 individuals 40 years, living in the West Midlands region of England. Hobbs and Colleagues provide...

Journal: :JACC. Cardiovascular imaging 2012
Amil M Shah Mikhail Bourgoun Jagat Narula Arnold F Jacobson Scott D Solomon

OBJECTIVES The aim of this study was to determine whether left ventricular ejection fraction (LVEF) influences the relationship between abnormal myocardial sympathetic innervation imaging by iodine 123 meta-iodobenzylguanidine ((123)I-mIBG) and outcomes in patients with heart failure (HF). BACKGROUND In systolic HF, both abnormal (123)I-mIBG imaging and reduced LVEF are associated with higher...

Journal: :Annals of nuclear medicine 2006
Keiichi Odagiri Yasushi Wakabayashi Kei Tawarahara Chinori Kurata Tsuyoshi Urushida Hideki Katoh Hiroshi Satoh Hideharu Hayashi

Though quantitative ECG-gated blood-pool SPECT (QBS) has become a popular tool in research settings, more verification is necessary for its utilization in clinical medicine. To evaluate the reliability of the measurements of left and right ventricular functions with QBS, we performed QBS, as well as first-pass pool (FPP) and ECG-gated blood-pool (GBP) studies on planar images in 41 patients and...

Journal: :Journal of the American College of Cardiology 2010
Jonathan P Piccini Aijing Z Starr John R Horton Linda K Shaw Kerry L Lee Sana M Al-Khatib Ami E Iskandrian Christopher M O'Connor Salvador Borges-Neto

OBJECTIVES The aim of this study was to determine whether single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) is an effective method of risk stratification for sudden cardiac death (SCD) in patients with coronary artery disease (CAD) and left ventricular ejection fraction (LVEF)>35%. BACKGROUND Most victims of SCD have an LVEF>35%. METHODS The study populat...

Journal: :Journal of the American College of Cardiology 1999
T Z Naqvi R K Goel J S Forrester R J Siegel

OBJECTIVES The purpose of this study was to determine whether identification of contractile reserve with dobutamine would predict recovery of myocardial function during follow-up in patients with recent onset idiopathic dilated cardiomyopathy (IDC). BACKGROUND The prognosis of patients presenting with new onset IDC is variable and difficult to predict. METHODS Twenty-two patients (17 men, 5...

Journal: :Clinical pharmacology and therapeutics 2000
Q Feng M L Lambert I D Callow J M Arnold

BACKGROUND Chronic heart failure is associated with increased sympathetic nerve activity and elevated plasma neuropeptide Y levels. The aim of this study was to investigate whether increased neuropeptide Y release altered vascular neuropeptide Y responses in the dorsal hand veins in patients with chronic heart failure. METHODS AND RESULTS Neuropeptide Y responsiveness was studied in vivo with...

2011
Thomas Pilgrim Peter Wenaweser Fabienne Meuli Christoph Huber Stefan Stortecky Christian Seiler Stephan Zbinden Bernhard Meier Thierry Carrel Stephan Windecker

INTRODUCTION Reduced left ventricular function in patients with severe symptomatic valvular aortic stenosis is associated with impaired clinical outcome in patients undergoing surgical aortic valve replacement (SAVR). Transcatheter Aortic Valve Implantation (TAVI) has been shown non-inferior to SAVR in high-risk patients with respect to mortality and may result in faster left ventricular recove...

2015
Olivia Y Hung Jennifer R Brown Tian Dai Kirk A Easley Christopher R Flowers Susmita Parashar

OBJECTIVE Anthracyclines are potent antineoplastic agents in the treatment of lymphoid malignancies, but their therapeutic benefit is limited by cardiotoxicity. The American Heart Association (AHA) recommends routine surveillance, early diagnosis and treatment of anthracycline-based chemotherapy (AC) induced cardiomyopathy (AC-CMP). We aimed to assess the prevalence of AC-CMP in patients with l...

Journal: :American heart journal 2008
Lilian Grigorian-Shamagian Fernando Otero Raviña Emad Abu Assi Rafael Vidal Perez Elvis Teijeira-Fernandez Alfonso Varela Roman Laura Moreira Sayagues Jose Ramon Gonzalez-Juanatey

BACKGROUND The aim of the study was to examine the causes of the death of patients with heart failure (HF) and evaluate the differences in this respect between patients with and without depression of left ventricular ejection fraction (LVEF). METHOD All patients hospitalized with HF between 1995 and 2002 in the cardiology service of a tertiary hospital were assessed. LVEF was evaluated by ech...

2015
Zhong Chen Zhen Ding Xin Wang Xiaofeng Zhang Genshan Ma

BACKGROUND The purpose of this study was to determine the association between heart function, compliance with drug administration, and the mid-term prognosis in Chinese patients with stable premature coronary artery disease (CAD) (male < 55 years and female < 65 years). METHODS The study included 512 patients with stable premature CAD. An estimated glomerular filtration rate (eGFR) calculated...

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