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We have studied the effects of graded infusion rates of propofol (0.2-0.5 mg kg-1 min-1) on left ventricular global and regional function, in eight acutely instrumented dogs. Global function was assessed by measurement of aortic and left ventricular pressure, LV dP/dtmax, aortic blood acceleration and stroke volume. Regional function was assessed by(More)
1. The effects of two general anaesthetics, propofol and enflurane, on electrical activity and contractions were investigated in single myocytes isolated from guinea-pig ventricles. 2. Propofol and enflurane depressed the plateau and shortened the duration of action potentials. 3. Under voltage-clamp conditions, propofol and enflurane reduced the amplitude(More)
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1. The effects of the anaesthetics, propofol (100 microM) and enflurane (3%, 1.46 mM), on single L type calcium channel currents were investigated in single myocytes isolated from guinea-pig ventricles. Channel activity was recorded from membrane patches by use of the 'cell-attached' patch-clamp technique (pipette solution containing 110 mM BaCl2, 5 microM(More)
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