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  • Title: Correlation between the duration of the cardiac cycle and the complex of impedance plethysmographic hemodynamic indices of the lung and aorta.
    Author: Tsontchev I.
    Journal: Bibl Cardiol; 1975; (33):214-7. PubMed ID: 1131187.
    Abstract:
    Rheographic studies of the lung and aorta have been performed on 20 patients with atrial fibrillation and on 30 normal individuals before and after Valsalva's manoever. The findings disclose a strongly expressed positive correlation between the duration of the cardiac cycle and the rheographic systolic index, a Vmax., a Vm and a negative correlation with the Q-a interval and the ab/RR of the lung and the aorta.
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