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Age-Dependence of Flow Homeostasis in the Left Ventricle
Conclusions: In average, blood spends 1 to 3 beats inside the LV with very low shear stress rates. The apical region is the most prone to blood stasis, particularly in mid-aged adults. The washout of blood in the normal LV is age-dependent due to physiological changes in the degree of apical penetration of the filling waves. Introduction Cardioembolic stroke is a major source of mortality and disability worldwide and blood stasis one of its major determinants (Adams et al., 1986). Left ventricular (LV) function has evolved to maximize mechanical efficiency and ensure organ perfusion at a low cost of energy and fill...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

Medtronic touts reduced AF, improved activity in AdaptivCRT studies
Medtronic (NYSE:MDT) today released results from two real-world analyses of its AdaptivCRT algorithm, touting that its use was linked to a reduction in atrial fibrillation episodes and higher patient activity levels. Results from the analyses, which involved a total of 408 patients at 26 centers in Italy, were presented at the European Heart Rhythm Association’s Scientific Sessions 2018 in Barcelona, Spain, the company said. Medtronic’s AdaptivCRT algorithm is designed to adjust pacing to the heart dependent upon evaluations of heart rhythm made every minute, the company said. The program has been shown to in...
Source: Mass Device - March 20, 2018 Category: Medical Devices Authors: Fink Densford Tags: Cardiac Assist Devices Cardiac Implants Cardiovascular Clinical Trials Software / IT Medtronic Source Type: news