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alternans |
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alternans /al·ter·nans/ (awl-ter´nanz) [L.] 1. alternating; see pulsus alternans. 2. alternation. electrical alternans alternating variations in the amplitude of specific electrocardiographic waves over successive cardiac cycles. mechanical alternans alternation of the heart, particularly in contrast to electrical alternans. pul´sus alternans see under pulsus. total alternans pulsus alternans in which alternating beats are so weak as to be undetected, causing apparent halving of the pulse rate.
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? Mentioned in | ? References in periodicals archive | ||
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| 2) Rosenbaum DS, Jackson LE, Smith JM, Garan H, Ruskin JN, Cohen RJ: Electrical Alternans and Vulnerability to Ventricular Arrhythmias. |
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