St. Hohnloser

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We determined the threshold for ventricular fibrillation by means of sinusoidal alternating current (AC) from 1 to 1000 Hz on isolated perfused guinea pig hearts. Current was applied via electrodes located in the aorta and at the apex of the heart. The duration of current flow was kept constant at 1 s. Electrical activity was recorded with epicardial(More)
Isolated perfused guinea pig hearts (Langendorff preparation) were used to study the influence of direct current (DC) on the shape of the electrogram and to determine the thresholds for extrasystoles and for fibrillation. DC impulse durations ranged between 30 ms and 5 s. During DC flow through the heart, marked deformations of the electrogram occur mainly(More)
Isolated perfused guinea pig hearts (Langendorff preparation) were arrested by carbachol (0.1–0.2 mg/l) and electrically stimulated in the region of the av-conducting system. The QT interval was determined by means of extracellular electrodes at different driving frequencies. Separate experiments were performed on papillary muscles from the right ventricle(More)
Aro Sonntag findet augerdem zum ersten Mal das Forum ,,Junge Mediziner" statt. Das genaue Programm des Forums stellen wir Ihnen nochmals ira michsten Heft vor. Nach dem bundesweiten Aufruf, u. a. auch in der ,Medizinischen Klinik", haben sich erfreulich viele junge Kollegen im Alter bis 35 Jahre lar die Teilnahme aro ,Young Masters Turnier" ira Rahmen des(More)
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