When the blood sugar levels are spiking uncontrollably, a diabetic person faces a severe risk of experiencing heart failure. People with diabetes are more prone to develop coronary heart disease wherein the arteries of your body that carries blood to your heart get blocked with piled-up substances called plaque. This situation eventually leads to heart failure. Generally, those who have type 2 diabetes develop heart failure with reduced ejection fraction and heart failure with preserved ejection fraction.