Steven P. Keller

Apr 29, 2024 | agproud.com | Ben Lawrence |Cassidy Woolsey |Steven P. Keller |R. Jed Myers

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Apr 23, 2024 | agproud.com | Steven P. Keller

Is your irrigation system as efficient as it could be? Irrigation pumps use a significant portion of total farm energy. Optimizing your irrigation system can lower energy costs, save water and improve water distribution across your fields. Idaho Power's agricultural representatives in southern Idaho and eastern Oregon offer valuable expertise on maximizing system efficiency.

Feb 14, 2024 | icrjournal.com | Tomoki Sakata |Spyros Mavropoulos |Steven P. Keller

At the 6th Annual A-CURE Symposium, Dr Sakata showed preclinical evidence that mechanical left ventricular (LV) unloading increases coronary perfusion of the infarct area.1 Study data suggested that mechanical LV unloading is more beneficial in post-MI patients with high diastolic pressure associated with increased LV stiffness and in those with worse cardiac contractility.1 However, there are other factors that are thought to increase coronary flow with LV unloading, including low cardiac...

Feb 14, 2024 | icrjournal.com | Spyros Mavropoulos |Tomoki Sakata |Steven P. Keller

In acute heart failure, unloading the left ventricle (LV) by percutaneous LV assist devices (pLVAD) reduces LV filling pressures and volumes, as well as cardiac workload and wall stress, which, in turn, reduces myocardial oxygen demand and increases coronary perfusion.

Feb 14, 2024 | icrjournal.com | Tomoki Sakata |Spyros Mavropoulos |Steven P. Keller

A previous study showed that mechanical preconditioning with left ventricular (LV) unloading with a mechanical circulatory support device reduces infarct size and wall stress in acute preclinical models of MI compared with primary reperfusion, despite a delay in reperfusion by 60 min.1 Another recent research study found that transvalvular unloading and delayed reperfusion preserves myocardial energy substrate utilisation and protects mitochondrial structure and function in acute MI.2 Dr...