Recent reports, from this laboratory, have described the cardiovascular activity of the 4-aroyl- 1, 3-dihydro-2H-imidazol-2-0nes.~,~ Marked positive inotropic activity accompanied by minor positive chronotropic and hypotensive effects were found for a large number of these compounds. The combination of positive inotropic activity and after-load reduction suggested that these compounds may have beneficial effects in the treatment of ...