Single-Beat Preload Recruitable Stroke Work Measurement Of Cardiac Contractility In Three Mammalian Models.
Funder
National Health and Medical Research Council
Funding Amount
$241,980.00
Summary
The accurate measurement of the inherent pumping capacity of the heart muscle is difficult because (i) most measurements currently in use cannot accurately discriminate between the contribution of the heart muscle and that of the vascular system to the results obtained, and (ii) the measurements which can discriminate currently require invasive measurements and procedures that frequently restrict their use. The overall purpose of this proposal is to more rigorously validate a promising method we ....The accurate measurement of the inherent pumping capacity of the heart muscle is difficult because (i) most measurements currently in use cannot accurately discriminate between the contribution of the heart muscle and that of the vascular system to the results obtained, and (ii) the measurements which can discriminate currently require invasive measurements and procedures that frequently restrict their use. The overall purpose of this proposal is to more rigorously validate a promising method we have developed that will (i) make accurate assessment possible from a single cardiac beat in both experimental animals and human subjects; (ii) reduce the number of experimental animals required for such measurements by permitting sequential measurements in the same animals; (iii) make it possible to perform such measurements non-invasively in human subjects.Read moreRead less
Seminal findings within our laboratory have demonstrated that disturbances of blood flow are an important trigger for blood clot formation, promoting heart attacks and stroke. Our studies have demonstrated that specialised blood cells, termed platelets, respond rapidly to local changes in blood flow in diseased blood vessels. In the present proposal we aim to identify the mechanisms by which platelets sense and respond to blood flow disturbances with the aim of identifying new approaches to prev ....Seminal findings within our laboratory have demonstrated that disturbances of blood flow are an important trigger for blood clot formation, promoting heart attacks and stroke. Our studies have demonstrated that specialised blood cells, termed platelets, respond rapidly to local changes in blood flow in diseased blood vessels. In the present proposal we aim to identify the mechanisms by which platelets sense and respond to blood flow disturbances with the aim of identifying new approaches to prevent disease-causing blood clots.Read moreRead less