alternans /al·ter·nans/ (awl-ter´nanz) [L.]
alternans
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.
al·ter·nans (ôl-tûr n nz )adj. Alternating, as in heart contractions. n. Alternation in the contractions of the heart. |
alternans
[ôl′tərnənz]
Etymology: L, alternare, to alternate
See pulsus alternans.
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|