Clinical Considerations on the Duration of Left Ventricular Systoles

YOSHIAKI HISHIMOTO; TOHRU MATSUURA; TOSHIAKI KIRIYAMA; MASAKAZU OCHIAI; HIROSHI KUNISHIGE; SUSUMU MARUMOTO; ISAO NIKI; NAOTO ENDO

doi:10.1253/jcj.32.1417

YOSHIAKI HISHIMOTO, TOHRU MATSUURA, TOSHIAKI KIRIYAMA, MASAKAZU OCHIAI, HIROSHI KUNISHIGE, SUSUMU MARUMOTO, ISAO NIKI, NAOTO ENDO

Author information

YOSHIAKI HISHIMOTO
TOHRU MATSUURA
TOSHIAKI KIRIYAMA
MASAKAZU OCHIAI
HIROSHI KUNISHIGE
SUSUMU MARUMOTO
ISAO NIKI
NAOTO ENDO
Author's Organization：
The Second Department of Internal Medicine, Kyoto Prefectural University of Medicine
The Second Department of Internal Medicine, Kyoto Prefectural University of Medicine
The Second Department of Internal Medicine, Kyoto Prefectural University of Medicine
The Second Department of Internal Medicine, Kyoto Prefectural University of Medicine
/ The Second Department of Internal Medicine, Kyoto Prefectural University of Medicine
The Department of Clinical Laboratory, Kyoto Prefectural University of Medicine
The Department of Clinical Laboratory, Kyoto Prefectural University of Medicine

JOURNAL FREE ACCESS

1968 Volume 32 Issue 10 Pages 1417-1426

DOI https://doi.org/10.1253/jcj.32.1417

Details

Abstract

Tension period, isometric contraction time and ejection time were measured in 20 normal subjects and 72 patients with nonvalvular heart disease to evaluate the usefulness of the duration of left ventricular systoles as an index of the ventricular performance. Left ventricular function could not be manifested with only one of those durations. The ratio of ejection time to isometric contraction time demonstrated a parallelism to changes in left ventricular performance. Serial observations of this ratio offer a convenient detection for the changes in left ventricular per-formance.

Corresponding author

Register with J-STAGE for free!