نتایج جستجو برای: vt

تعداد نتایج: 6535  

Journal: :American journal of physiology. Heart and circulatory physiology 2002
Moshe Swissa Toshihiko Ohara Moon-Hyoung Lee Sanjay Kaul Prediman K Shah Hideki Hayashi Peng-Sheng Chen Hrayr S Karagueuzian

We tested the hypothesis that sildenafil, singly or in combination with nitric oxide (NO) donors, promotes ventricular tachycardia (VT) and ventricular fibrillation (VF). Vulnerability to VT/VF was tested by rapid pacing in eight isolated normal swine right ventricles (RV). The endocardial activation was optically mapped, and the dynamic action potential duration (APD) restitution curves were c...

Journal: :Environmental health and preventive medicine 2003
Yukie Saito Yukinori Kusaka Masanori Shimada

OBJECTIVES The purpose of this study was to examine the relation between exercise intensity and immune function. METHODS Ten healthy young males underwent a constant work rate exercise of three levels, 90%, 80% and 70% ventilatory threshold (VT) work rate, for 20 min on a bicycle ergometer. These work rates were calculated for each individual based on his VT work rate obtained by the incremen...

Journal: :Caligrama: Revista de Estudos Românicos 1999

Journal: :Current Treatment Options in Cardiovascular Medicine 2014

Journal: :Circulation. Arrhythmia and electrophysiology 2014
Hamid Ghanbari Kazim Baser Miki Yokokawa William Stevenson Paolo Della Bella Pasquale Vergara Thomas Deneke Karl-Heinz Kuck Hans Kottkamp She Fei Fred Morady Frank Bogun

BACKGROUND Although ventricular tachycardia (VT) ablation is a widely used therapy for patients with VT, the ideal end points for this procedure are not well defined. We performed a meta-analysis of the published literature to assess the predictive value of noninducibility of postinfarction VT for long-term outcomes after VT ablation. METHODS AND RESULTS We performed a systematic review of ME...

Journal: :Circulation 2007
Francis E Marchlinski

The basis for arrhythmogenesis in patients with nonischemic cardiomyopathy and ventricular tachycardia (VT) needs further elucidation. Cardiac arrest and/or nonsustained VT are common arrhythmia presentations in the setting of nonischemic cardiomyopathy, with sustained monomorphic VT being relatively uncommon.1,2 Importantly, bundlebranch reentrant VT is identified as the VT mechanism in a sign...

Journal: :American journal of respiratory cell and molecular biology 2006
Nina G Hall Yuliang Liu Judy M Hickman-Davis Glenda C Davis Carpantato Myles Eric J Andrews Sadis Matalon John D Lang

Protective ventilation strategies have been universally embraced because of reduced mortality. We tested the hypothesis that tidal volume (VT) in an in vivo model of mechanical ventilation would modulate bactericidal function of alveolar macrophages (AMs). Adult New Zealand White rabbits were mechanically ventilated for 4 h with a VT of 6 ml/kg (low) or a VT of 12 ml/kg (traditional), with each...

2006
Nina G. Hall Yuliang Liu Judy M. Hickman-Davis Glenda C. Davis Carpantato Myles Eric J. Andrews Sadis Matalon John D. Lang

Protective ventilation strategies have been universally embraced because of reduced mortality. The authors tested the hypothesis that tidal volume (VT) in an in vivo model of mechanical ventilation would modulate bactericidal function of alveolar macrophages (AMs). Adult New Zealand White rabbits were mechanically ventilated for 4 h with either a VT of 6 ml/kg (low) or a VT of 12 ml/kg (traditi...

Journal: :Blood 2015
Elise P DeRoo Shirley K Wrobleski Evelyn M Shea Ramsey K Al-Khalil Angela E Hawley Peter K Henke Daniel D Myers Thomas W Wakefield Jose A Diaz

Galectin-3-binding protein (gal3bp) and its receptor/ligand, galectin-3 (gal3), are secreted proteins that initiate signaling cascades in several diseases, and recent human proteomic data suggest they may play a role in venous thrombosis (VT). We hypothesized that gal3bp and gal3 may promote VT. Using a mouse stasis model of VT, we found that gal3bp and gal3 were localized on vein wall, red blo...

2009

● Mutations in several different genes are associated with an increased risk for venous thrombosis (VT). ● The lifetime risk for VT associated with the most common mutations is modest. For example, the lifetime risk for VT associated with factor V Leiden, a gene variant present in 5% of individuals of European descent, is estimated to be about 12% to 20%. ● However, inheritance of two copies of...

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