‖ perisystole Physiol.
(pɛrɪˈsɪstəliː)
[mod.L. perisystole (Bartholine 1651), f. Gr. περί around + συστολή contraction; in F. périsystole (1762 in Dict. Acad.).]
‘The short interval of time between the systole and the following diastole of the heart; inappreciable except when the heart's action is failing’ (Syd. Soc. Lex.). Hence perisystolic (-sɪˈstɒlɪk) a., belonging to the perisystole.
| 1664 Power Exp. Philos. i. 60 Without any interloping perisystole at all. 1668 Culpepper & Cole Barthol. Anat. ii. vi. 104 They confound the Perisystole or quiet posture of the heart. [1651 Bartholinus ii. vi. 251 Confundunt perisystolen seu quietum.] 1758 J. S. tr. Le Dran's Observ. Surg. (1771) Dict., Perisystole, that Instant of rest between the Systole and Diastole of the Heart. 1853 Markham Skoda's Auscult. 213 A murmur arising at the root of the aorta, during the ventricular systole, is more perisystolic, than a murmur arising in the ventricles. 1875 Hayden Dis. Heart 81 The perisystolic phenomena. |