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| Angina usually occurs when the heart has to work harder such as during exercise, after eating a big meal, going out in very hot or cold weather, or stressful situations. A spasm can occur at any time in some patients, even when they are at rest. This type of angina is called variant or vasospastic angina. In most cases an attack will last for less than five minutes, but can range from less than 30 seconds to more than 30 minutes. Since more than one-half of patients with typical angina and confirmed coronary atherosclerosis have normal EKG readings at rest, diagnosis must often be confirmed using EKG stress testing or Holter monitoring. A heart attack is when a portion of the heart receives little or no oxygen for a longer period of time - without oxygen, that portion of the heart muscle starts to die. Signs that a person is having a heart attack and should get emergency attention include: pain lasting more than 30 minutes, sweating, nausea, shortness of breath, severe anxiety, and fatigue. |
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