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- W2031505848 abstract "The haemodynamic effects of nifedipine (20 mg sublingually) were studied in 40 patients with acute myocardial infarction within 18 h of the onset of symptoms. To determine the influence of preload and afterload on the haemodynamic response to nifedipine, patients were prospectively stratified equally into four groups of 10 patients based on systemic blood pressure level (less than or greater than 160/100 mm Hg) and level of left ventricular filling pressure [pulmonary artery-occluded pressure (PAOP) less than or greater than 18 mm Hg]. In all groups, nifedipine reduced systemic arterial pressure (p less than 0.01) and vascular resistance index (p less than 0.01); heart rate (p less than 0.01) and cardiac index (p less than 0.01) were increased. PAOP was reduced by nifedipine only in those hypertensive patients in whom it was initially raised; in these patients cardiac stroke volume index also increased (p less than 0.01). In hypertensive patients with normal PAOP the cardiac stroke work index was reduced. In patients with normal systemic and pulmonary arterial pressures, nifedipine had no beneficial effects on cardiac function. These data suggested that haemodynamic criteria may allow selection of patients for nifedipine therapy following myocardial infarction; clear advantages were evident only in hypertensive patients in both the presence and the absence of left ventricular failure." @default.
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- W2031505848 date "1987-04-01" @default.
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- W2031505848 title "Nifedipine Following Acute Myocardial Infarction-Dependence of Response on Baseline Haemodynamic Status" @default.
- W2031505848 doi "https://doi.org/10.1097/00005344-198704000-00013" @default.
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