wall stress

wall stress

the tension within the wall of the left ventricle. It is determined by the pressure in the ventricle, the internal radius of the ventricle, and the thickness of the wall. Also called wall tension.
References in periodicals archive ?
The patches also significantly reduced infarct size, which is the area of dead muscle; heart-muscle wall stress and heart-muscle enlargement; as well as significantly reducing apoptosis, or programmed cell death, in the scar border area around the dead heart muscle.
When determining the minimum depth to bury the pipe, the compressive wall stress on the pipe from exterior forces should be kept less than the allowable compressive stress of the HDPE material.
Objective: Rupture of Aortic Aneurysms (AA), which kills more than 30 000 persons every year in Europe and the USA, is a complex phenomenon that occurs when the wall stress exceeds the local strength of the aorta due to degraded properties of the tissue.
Instead, AAA appears to be a multifactorial process involving inflammation, matrix degradation, thrombosis, and aortic wall stress.
One could make the case that treating earlier in the LV remodeling process provides more viable tissue that compliments the mechanistic theory of the PARACHUTE which is to reduce volume, thereby reducing wall stress in the upper chamber of the LV, and to synchronize wall motion during systolic contraction by replacing the eccentric wall motion in the apical region with a more compliant device.
To carry out a quantitative comparison, wall stress values were exported for two regions of interest: (a) the complete aneurysm sac (approx.
He has written for the Wall Stress Journal and has won the Keystone Press Award three times.
The primary study endpoint was change in N-terminal of the prohormone brain natriuretic hormone (NT-proBNP), a biomarker of left ventricular wall stress, through 12 weeks.
13,14) The wall stress of any segment of the myocardium is therefore highly dependent upon the local geometry, particularly the radii of curvature of the ventricle wall at that location.
Because of the loss of viable myocardium after an MI, the heart works under elevated wall stress, which results in progressive myocardial hypertrophy and left ventricular dilation that leads to heart failure.