نتایج جستجو برای: lvad

تعداد نتایج: 1550  

Journal: :Circulation 1998
K Dipla J A Mattiello V Jeevanandam S R Houser K B Margulies

BACKGROUND The failing myocardium is characterized by decreased force production, slowed relaxation, and depressed responses to beta-adrenergic stimulation. In some heart failure patients, heart function is so poor that a left ventricular assist device (LVAD) is inserted as a bridge to transplantation. In the present research, we investigated whether circulatory support with an LVAD influenced ...

Journal: :Pacing and clinical electrophysiology : PACE 2008
Marwan Refaat Elie Chemaly Djamel Lebeche Judith K Gwathmey Roger J Hajjar

BACKGROUND Left ventricular assist devices (LVADs) have been used as a bridge to cardiac transplantation and as destination therapy in patients with advanced heart failure. The period after LVAD support is associated with ventricular arrhythmias (VAs) despite ventricular unloading and such VAs can have a detrimental effect on survival. Despite the increasing use of LVAD, little is known regardi...

Journal: :Journal of the American College of Cardiology 2013
Stavros G Drakos Omar Wever-Pinzon Craig H Selzman Edward M Gilbert Rami Alharethi Bruce B Reid Abdulfattah Saidi Nikolaos A Diakos Sandi Stoker Erin S Davis Matthew Movsesian Dean Y Li Josef Stehlik Abdallah G Kfoury

OBJECTIVES This study sought to prospectively investigate the longitudinal effects of continuous-flow left ventricular assist device (LVAD) unloading on myocardial structure and systolic and diastolic function. BACKGROUND The magnitude, timeline, and sustainability of changes induced by continuous-flow LVAD on the structure and function of the failing human heart are unknown. METHODS Eighty...

Journal: :Circulation 2005
Stefan Klotz Robert F Foronjy Marc L Dickstein Anguo Gu Ingrid M Garrelds A H Jan Danser Mehmet C Oz Jeanine D'Armiento Daniel Burkhoff

BACKGROUND Left ventricular assist devices (LVADs) induce reverse remodeling of the failing heart except for the extracellular matrix, which exhibits additional pathophysiological changes, although their mechanisms and functional consequences are unknown. METHODS AND RESULTS Hearts were obtained at transplant from patients with idiopathic dilated cardiomyopathy (DCM) not requiring LVAD suppor...

Journal: :Journal of the American College of Cardiology 2005
Ohad Ziv Jose Dizon Amit Thosani Yoshifumi Naka Anthony R Magnano Hasan Garan

OBJECTIVES In a retrospective study, we sought to evaluate the effect of left ventricular assist device (LVAD) therapy on ventricular tachyarrhythmias in patients with advanced congestive heart failure. BACKGROUND Despite the increasing use of LVAD as a bridge to cardiac transplantation, our knowledge regarding its effect on ventricular arrhythmias is currently limited to small series. Little...

Journal: :Interactive cardiovascular and thoracic surgery 2010
Sara C Herman Jochen D Muehlschlegel Gregory S Couper Edward Kelly

A patient with idiopathic non-ischemic cardiomyopathy had a left ventricular assist device (LVAD) implanted, while awaiting cardiac transplantation. The patient had been stable following a complicated and prolonged postoperative course, but was admitted to the hospital for suspected low-grade LVAD-related infection. Work-up for sepsis was suspicious for perforated viscus. An exploratory laparot...

Journal: :Circulation. Heart failure 2011
Corline Brouwers Johan Denollet Nicolaas de Jonge Kadir Caliskan Jennifer Kealy Susanne S Pedersen

BACKGROUND Technological advancements of left ventricular assist devices (LVAD) have created today's potential for extending the lives of patients with end-stage heart failure. Few studies have examined the effect of LVAD therapy on patient-reported outcomes (PROs), such as health status, quality of life, and anxiety/depression, despite poor PROs predicting mortality and rehospitalization in pa...

Journal: :Heart, lung & circulation 2012
D L Templeton K H H Mosser C N Chen M D Stone R John D R Dengel L V Thompson

PURPOSE The primary purpose of this study was to examine the changes in myocardial oxidative stress during the support of a left ventricular assist device (LVAD). METHODS Myocardial tissue was collected from the lower left ventricle of 15 adult subjects with class IV heart failure (HF) during LVAD placement (n=9) or LVAD removal (Post-LVAD; n=6). Each tissue sample was separated into cytosoli...

Journal: :Artificial organs 2015
Pascal Merle Bujar Maxhera Alexander Albert Philipp Ortmann Mareile Günter Artur Lichtenberg Diyar Saeed

The growing field of implantable left ventricular assist devices (LVADs) lacks studies that evaluate the sexual and psychosocial concerns of LVAD patients. The aim of this prospective study was to determine the sexual and psychosocial behaviors of these patients. A sexual and psychosocial survey was conducted in patients who underwent the implantation of LVAD. Inclusion criteria were patients w...

Journal: :Journal of the Chinese Medical Association : JCMA 2012
Chia-Chun Chuang Chien-Ching Lee Shu-Wei Liao Chien-Kun Ting Chi-Chun Chu Kwok-Hon Chan Su-Man Lin

The left ventricular assist device (LVAD) is a battery-operated, mechanical pump-type device that helps in maintaining the pumping ability of a failing heart. Thromboembolism poses a significant risk during and after LVAD implantation. It occurs in up to 35% of patients with adverse sequelae. We present the case of a 75-year-old man who underwent coronary artery bypass graft surgery and LVAD im...

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