Results 251 to 260 of about 84,426 (302)
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American Heart Journal, 1929
Summary A case is reported in which a hitherto undescribed form of cardiac arrhythmia appears. Under normal respiratory conditions retardation of the heart occurs with each second respiration. Simultaneous electrocardiographic and respiratory tracings are shown, and a discussion of the mechanism involved is presented.
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Summary A case is reported in which a hitherto undescribed form of cardiac arrhythmia appears. Under normal respiratory conditions retardation of the heart occurs with each second respiration. Simultaneous electrocardiographic and respiratory tracings are shown, and a discussion of the mechanism involved is presented.
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American Journal of Physiology-Legacy Content, 1966
R L, Hamlin, C R, Smith, D L, Smetzer
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R L, Hamlin, C R, Smith, D L, Smetzer
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Do You Believe in Sinus Arrhythmia?
Ergonomics, 1973Some problems raised by the use of heart rate irregularity as a dependent variable in experiments are mentioned. Referring to experimental results it is argued that mental load is not an indivisible concept. In laboratory studies a binary choice task is often used in order to provide the level of mental load as an independent variable This kind of task
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Q-T interval in sinus arrhythmia
Journal of Electrocardiology, 1981Summary The Bazett equation is modified for calculating the “corrected Q-T” in children with sinus arrhythmia.
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Sinus Arrhythmia as a Measure of Mental Load
Ergonomics, 1974This experiment examines the proposition that sinus arrhythmia is a measure of mental load. The experiment involved a subtraction task in which the physical and mental loads could be varied independently. The results indicate that sinus arrhythmia does decrease with on increase in mental load.
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2018
Sinus bradycardia and tachycardia are regular heart rhythms with unusual rate. In most cases, they are physiologic or secondary to another process and virtually never require direct treatment.
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Sinus bradycardia and tachycardia are regular heart rhythms with unusual rate. In most cases, they are physiologic or secondary to another process and virtually never require direct treatment.
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The Sinus Node and Atrial Arrhythmias
Annals of the New York Academy of Sciences, 1990C J, Kirchhof, M A, Allessie, F I, Bonke
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