Jiang Ding

TL;DR: In this population of CHF patients with sufficiently wide surface QRS benefit from atrial-synchronous ventricular pacing, LV stimulation is required for maximum acute benefit, and the maximum benefit at any site occurs with a patient-specific AV delay.

TL;DR: CRT with LV free wall stimulation produced significantly better LV systolic performance compared with anterior stimulation, and further studies are warranted to prove the clinical superiority of theLV free wall as a site for long-term CRT.

TL;DR: In this paper, a pacing system for providing optimal hemodynamic cardiac function for parameters such as contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays for optimal timing of a ventricular pacing pulse.

TL;DR: Preload alone cannot explain the differences seen between RV and BV stimulation and the contradictory PP decreases even at maximal preload in the nonresponder subgroup, and caution should be taken in these patients when optimizing AV delays using echocardiography techniques that focus on LV inflow.

TL;DR: In this article, a method and system for setting the operating parameters of a cardiac rhythm management device in which a plurality of parameter optimization algorithms are available is presented, based on a measured feature of an electrophysiological signal such as QRS width.