A mild heart attack is a type of cardiac arrest that does not cause permanent heart damage as it affects a small part of the cardiac muscles, according to Better Medicine. Usually, it is characterized by blockage of a sm... More »

Ten signs of a heart attack are tightness, pain or achiness in the chest or arms that sometimes extends to the neck, jaw or back, nausea, indigestion, heartburn, abdominal pain, shortness of breath, cold sweats, tirednes... More »

Five common warning signs of a heart attack include arm or shoulder pain, chest pain or discomfort, weakness or feeling faint, shortness of breath, and jaw or neck pain, according to Healthline. Despite the fact that hea... More »

The primary cause of a massive heart attack or sudden cardiac arrest is a problem with the heart's electrical system which produces an abnormality in heart rhythm, according to Mayo Clinic. Cardiac arrest occurs when err... More »

The difference between cardiac arrest and a heart attack is cardiac arrest happens when the heart malfunctions and suddenly stops beating, and a heart attack happens when blood flow is restricted to the heart, according ... More »

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A minor heart attack affects only a small portion of heart muscle, while a major or massive heart attack affects a larger portion of heart muscle or results in significant heart damage, according to Healthgrades. Heart a... More »

During a heart attack, a blood clot completely obstructs the artery and deprives the heart of oxygen supply, causing heart muscle cells to die and leading to permanent damage, explains WebMD. Blood clots form when a plaq... More »