perisystolic
/ˌpɛrɪsɪˈstɒlik/Medicine. Now rare
adjective
Occurring near (especially just before or after) systole.
Origin
Mid 19th century; earliest use found in William Markham (1818–1891). From peri- + systolic, after German périsystolisch (1845 in the source translated in quot. 1853; itself translating French périsystolique.