Talk:Cardiovascular physiology

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Fick demonstrated a mathematical representation of systole, cardiac output (CO). Echocardiography has allowed us to extrapolate CO to Ejection Fraction (EF). Ficks' equation can be inverted to demonstrate an implied mathematical model of diastole. Cardiac Input (CI) is Fick in reverse and is equally amenable to contemporary echocardiographic interpretation as Injection Fraction (IF). EF and IF are better described as right heart and left heart determinants as LVEF/RVEF and LVIF/RVIF. Technology has ushered a staggering array of determinants of the terms systole and diastole. The terms systole and diastole are extremely broad and often not very useful in clinical practice. A compendium that elaborates these terms in a meaningful way to clinicians is needed and would make a worthy, community based Wikipedia Article in my opinion. Introduction of theory as an Article is a thorny issue but one that deserves further study. Volumetric data, compliance, impedance, inotropy, chronotropy, preload/afterload, blood mass, myocardial mass, right(pulmonary), left(systemic), forward flow mechanics (ejection fraction) and backward flow mechanics (injection fraction) are suggested as starting chapters of the proposed compendium. Rank and order of the determinants of myocardial work (systole and diastole) will obviously shift frequently as clinical weight in evidence based pharmaceutical and device technology are examined in ongoing clinical trials. Much of the proposed compendium has already been written in Wikipedia but has not been bundled together in the pursuit of unraveling the terms systole and diastole. —Preceding unsigned comment added by Lbeben (talk • contribs) 01:48, 31 October 2007 (UTC)