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Did you know that pulsus alternans may be present in the peripheral sections of the arterial circulation when it is absent in the larger vessels of the extremities? "With high resistance of the vascular walls, small pressure variations will be largely compensated in the direction of the stream and not transversely to the vascular axis. If the vascular walls are soft, even small pressure variations will become effective transversely."
Did you know that it is possible to precipitate pulsus alternans in the very early phases of left ventricular failure with as little effort as ten knee bends or five to
Cardiac and Vascular Disorders. Differential Diagnosis by New Physiological Techniques.. Ann Intern Med. 1966;64:958. doi: https://doi.org/10.7326/0003-4819-64-4-958_1
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Published: Ann Intern Med. 1966;64(4):958.
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