|
Page 1 of 2 Heart Diseases
Angina
Angina pectoris is a Latin phrase that means “Strangling in the chest”. Patients often describe angina as a squeezing, suffocating, or burning sensation in the chest. However, an episode of angina is not a heart attack. The pain commonly occurs in response to physical exertion, unlike a heart attack, the heart muscle is not permanently damaged and the pain usually goes away with rest.
Causes
Angina occurs when a diseased coronary artery can no longer deliver enough blood to a portion of the heart to satisfy its oxygen demands. Typically, angina occurs when the heart has an extra demand for oxygen–rich blood, especially during exercise. The pain results from insufficient blood and oxygen supplies to the heart (Ischemia). Other triggers can be emotional stress, extreme cold or hot temperatures, heavy meals, alcohol, and smoking.
Angina attacks in men usually occur after the age of 30 and are nearly always caused by Coronary Artery Disease (CAD). For women, angina tends to occur later in life. Other causes include Aortic stenosis, anemia, or hyperthyroidism, which are more often found among women than men.
Symptoms
Angina is a symptom of heart disease. Persons with angina have an increased risk of heart attack when compared to those who have no symptoms of heart disease. Angina tends to originate in the center of the chest, but the pain may spread to the left arm, neck, or jaw. Some persons have numbness or loss of sensation in the arms, shoulders, or wrists. An episode usually lasts no more than a few minutes, however, if the pain persists, it may indicate a sudden total blockage or an ensuing heart attack.
Patients may have one of several types of angina. For those with stable angina, the level of activity or stress that provokes an attack is usually predictable. Therefore, it’s important for patients to know the pattern of their attacks: what causes them, what the attacks feel like, how long they last, and whether medication relieves them. Sometimes, the pattern changes – attacks happen more often, last longer, or occur without exercise. This may indicate unstable angina, and patients should seek medical attention immediately if they notice a change in the patterns of their attacks.
Types of Angina
Variant Angina pectoris, or Prinzmetal’s angina, is a rare form of angina caused by Coronary spasm (Vasospasm). The spasm temporarily narrows the coronary artery and reduces blood flow to the heart. It may occur in patients who also have severe arteriosclerosis in at least one major vessel. Variant angina differs from Typical angina as it occurs during periods of rest. These attacks may be extremely painful, and patients find that the attacks occur more often between midnight and 8:00 a.m. Frequently, they occur at the same time each day.
Patients with Variant angina may be at a risk for heart attack, arrhythmia, and even sudden death. Those who survive a heart attack usually stabilize. Most patients find that the symptoms and cardiac events associated with Variant angina gradually disappear. Microvascular Angina is a recently discovered type of angina. Patients experience chest pain but have no apparent Coronary artery blockage. The pain results from poor function of distal, tiny blood vessels that nourishes the heart, arms, and legs. Generally, this type of angina is well tolerated, with very few long–term consequences.
| Users' Comments |
 |
| |
Average user rating |
 (0 vote) |
|
