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Systolic and diastolic time intervals in pulsus alternans - Significance of alternating isovolumic relaxationSystolic and diastolic time intervals in 14 cardiac patients with pulsus alternans revealed significant alternation of preinjection period (PEP), isovolumic contraction time (IVCT), left ventricular ejection time (LVET), ejection time index (ETI), PEP/LVET, and carotid dD/dt with better functional values in the strong beats. Cycle length, duration of electromechanical systole (EMS) and total diastole, i.e., isovolumic relaxation period (IRP) and diastolic filling period (DFP) occurred in 7 out of 8 patients. These diastolic intervals alternated reciprocally such that the IRP of the strong beats encroached upon the DFP of the next (weak) beats.
Document ID
19740034552
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Spodick, D. H.
(Lemuel Shattuck Hospital; Boston University Boston; Tufts University, Medford, Mass., United States)
Quarry, V. M.
(Lemuel Shattuck Hospital Boston, Mass., United States)
Khan, A. H.
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Publication Information
Publication: American Heart Journal
Volume: 87
Subject Category
Biosciences
Accession Number
74A17302
Funding Number(s)
CONTRACT_GRANT: NGR-22-012-006
Distribution Limits
Public
Copyright
Other

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