Ventricular volume (mL)
FIGURE 13 The oxygen consumption per beat is very accurately predicted by the area encompassed by the ejection loop (external work) plus the triangle between the systolic and diastolic compliance curves (internal work). (Adapted from Suga and Sagawa, Circ Res 1974;35:117-126.)
heart. Conversely, reducing aortic pressure increases cardiac output and decreases oxygen demand. The analysis also explains why increased contractility increases oxygen demand.
Frank O. On the dynamics of cardiac muscle (translated by Chapman CB and Wasserman E). Am Heart J 1959;58:282-378.
Suga H, Hisano R, Goto Y, et al. Effect of positive inotropic agents on the relation between oxygen consumption and systolic pressure volume area. Circ Res 1983;53:306-318.
Suga H, Sagawa K. Instantaneous pressure-volume relationships and their ratio in the excised and supported canine left ventricle. Circ Res 1974;35:117-126.
Was this article helpful?
One of the main home remedies that you need to follow to prevent gallstones is a healthy lifestyle. You need to maintain a healthy body weight to prevent gallstones. The following are the best home remedies that will help you to treat and prevent gallstones.