This will result in a decrease in total peripheral resistance and a decrease in preload on the heart. As a result, work done by the heart will decrease and will allow the heart to contract less strongly. Weaker contractions will lead to more blood flow in the coronary arteries, which will help the ischemic cardiac myocytes.
This will cause a decrease in overall vascular resistance and a reduction in preload on the heart, resulting in decreased work done by the heart and weakened contractions. This will subsequently lead to an increase in blood flow through the coronary arteries, aiding ischemic cardiac myocytes.