نتایج جستجو برای: duration of action
تعداد نتایج: 21194574 فیلتر نتایج به سال:
OBJECTIVES We undertook this study to determine whether human atrial fibrillation (AF) relates to steeply sloped action potential duration restitution (APDR) kinetics and whether the spatial nonuniformity of APDR promotes persistence of AF. BACKGROUND A steeply sloped APDR curve is known to be an important determinant of the induction of more complex action potential duration (APD) dynamics a...
Forty-five patients with chronic obstructive pulmonary disease were studied to compare the acute effects of ipratropium bromide (60 µg), salbutamol (300 µg) and placebo (3 puffs) on the forced expiratory volume in 1 sec (FEV 1) and forced vital capacity (PVC). Ipratropium bromide produced a significantly greater improvement than salbutamol in both FEV1 and FVC at 15,60 and 180 minutes afte...
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