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Effect of the Acorn cardiac support device, an Acorn with 5% prestretch (tight Acorn) and an Acorn applied only to the left ventricle (LV only) on right ventricular (RV) end-diastolic (EDPVR) and end-systolic pressure-volume relationship (ESPVR). The tight Acorn had the greatest effect, whereas the LV- only case had the least effect on RV EDPVR. The ESPVR was not changed by Acorn application.
