Why the study?
Do orthostatic factors and peripheral hemodynamics influence the manifestation of pulsus alternans in cardiac patients?
Population
3 cardiac patients with ventricular alternans
Design
Case_series
Authors
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Postural assessment may unmask pulsus alternans at bedside; leaves open standardization of orthostatic maneuvers in future protocols.
Do orthostatic factors and peripheral hemodynamics influence the manifestation of pulsus alternans in cardiac patients?
Pulsus alternans is strongly influenced by peripheral hemodynamic factors and postural changes, likely due to alterations in the diastolic length of injured ventricular muscle.
Friedman et al. (1953) studied this question.