Studies on the Mono-exponential Nature of the Left Ventricular Pressure Fall during Isovolumic Relaxation Period in the Disease Heart
山口医学 Volume 30 Issue 4
Page 381-390
published_at 1981-12
Title
左室等容弛緩期圧降下の単一指数関数性に対する検討
Studies on the Mono-exponential Nature of the Left Ventricular Pressure Fall during Isovolumic Relaxation Period in the Disease Heart
Creators
Katayama Kazuhiro
Source Identifiers
It has been reported that acute experimental myocardial ischemia impaired the exponetial nature of the left ventricular pressure (LVP) fall during isovolumic relaxation period (IRP). Our recent clinical studies also suggestrf that LVP could fall nonrxponentially during IRP in the diseased hearts. To examine this further, two types of mono-exponetial curve fitting were done in various heart diseases (normal (N) : 6, angina pectoris (AP) : 6, myocardial infarction (MI) : 13, hypertrophic cardiomyopathy (HCM) : 8, congestive cardiomyopathy (CCM) :6). LVP was measured by a Millar's catheter-tip transducer, and four types of time constant (T1-T4) were derived : T1 was calculated by an exponential curve fitting…
Languages
jpn
Resource Type
journal article
Publishers
山口大学医学会
Date Issued
1981-12
File Version
Not Applicable (or Unknown)
Access Rights
metadata only access
Relations
[ISSN]0513-1731
[NCID]AN00243156
Schools
医学部