OBJECTIVE To study the possible occurrence of left ventricular (LV) systolic and diastolic asynchrony in patients with systolic heart failure (HF) and narrow QRS complexes. DESIGN Prospective study. SETTING University teaching hospital. PATIENTS 200 subjects were studied by echocardiography. 67 patients had HF and narrow QRS complexes (< or = 120 ms), 45 patients had HF and wide QRS compl...

Cardiac resynchronization therapy (CRT) has become an established therapy for patients with NYHA class 3 and 4 heart failure, with a left ventricular (LV) ejection fraction (EF) ,35%, and a wide QRS complex of .120 ms, especially in patients with a complete left bundle branch block (CLBBB). A number of studies have shown that patients with these characteristics may benefit from this therapy in ...

Abstract The mechanisms underlying observed global patterns of partitioning precipitation ( ) to evapotranspiration and runoff are controversially debated. We test the hypothesis that asynchrony between climatic water supply demand is sufficient explain spatio‐temporal variability availability. developed a simple analytical model for determined by four dimensionless characteristics intra‐annual...

Reaction systems are a model of interactive computation, where the interaction between system — itself built up number reactions and its environment is modelled through context sequences provided by environment. The standard execution semantics reaction synchronous, i.e., at each computational step all enabled executed. In this paper, we ‘de-synchronise’ such an allowing only subset to be We th...