hypersystolic

hy·per·sys·tol·ic

(hī'pĕr-sis-tol'ik),
Relating to or marked by hypersystole.

hypersystole

(hī″pĕr-sĭs′tō-lē) [″ + systole, contraction]
Unusual force or duration of systole.
hypersystolic (-sĭs-tŏl′ĭk), adjective