Hem`i*sys"to*le (?), n. Physiol.

Contraction of only one ventricle of the heart.

Hemisystole is noticed in rare cases of insufficiency of the mitral valve, in which both ventricles at times contract simultaneously, as in a normal heart, this condition alternating with contraction of the right ventricle alone; hence, intermittent hemisystole.


© Webster 1913.

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