Cardi B's Viral Avocado Jalapeno Dip Heart vascular dip is a medical condition characterized by a sudden decrease in blood flow to the heart. It can be caused by a blocked artery that supplies oxygen and nutrients to the heart muscle. If left untreated, cardiovascular blood dip can lead to serious issues such as a myocardial infarction. Getting swift medical attention is essential to halt further damage to the heart.