- by Dr SUNIL DWIVEDI
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- Feb 11 2017
Diagnosis of ANGINA PECTORIS(inadequate blood supply to the heart.) by Dr SUNIL DWIVEDI, India
To diagnose angina, your doctor will start by doing a physical examination and asking about your symptoms. You'll also be asked about any risk factors, including whether you have a family history of heart disease.
There are several tests your doctor may order to help confirm whether you have angina:
- Electrocardiogram (ECG). It is an electrical recording of the signals as they travel through your heart. Evidence of a previous heart attack can be revealed by an ECG. If the signs and symptoms of your atherosclerosis is more evident during exercise, your doctor may ask you to walk on a treadmill or ride a stationary bike during an ECG.
- Stress test. Stress test is also an exercise stress test. IT is used to gather information about how well your heart works during physical activity. By doing exercise on bike or treadmill your heart pump harder and faster than it does during most daily activities. Testing of the heart during and after exercise can reveal problems within your heart that might not be noticeable otherwise. The procedure usually involves walking on a treadmill or riding a stationary bike while your heart rhythm and blood pressure and breathing are monitored. In some types of stress tests, pictures will be taken of your heart, such as during a stress echocardiogram (ultrasound) or nuclear stress test. In patients who are unable to exercise due to some or other reason, a medication that mimics the effect of exercise on heart is used to make it pump harder.
- Chest X-ray. Images of your heart and lungs is displayed by this test. Also, other conditions can be looked into that might explain your symptoms and to see if you have an enlarged heart.
- Echocardiogram. It is a type of ultrasound examination of your heart to produce images of the heart. These images are seen by the doctor to identify angina-related problems, including whether there are areas of your heart not getting enough blood or heart muscle that's been damaged by poor blood flow. Sometimes, an echocardiogram is performed during a stress test.
- Nuclear stress test. This test is performed to assess blood flow to your heart muscle at rest and during stress. It is similar to a routine stress test but uses a radioactive substance.
- Coronary angiography. Narrowing or blockade in coronary arteries can be revealed by this test. The test involves injecting a liquid dye into the arteries of your heart through a long, thin tube (catheter) that's fed through an artery, usually in your leg, to the arteries in your heart. The arteries become visible on X-ray, as the dye fills your arteries. Any area of blockage can then be revealed.
- Blood tests. Blood is tested for elevation of certain heart enzymes that slowly leak out into your blood if your heart has been damaged by a heart attack.
- Cardiac computerized tomography (CT) scans. During performance of this test, you lie on a table inside a doughnut-shaped machine. Inside the machine there is an X-ray tube which rotates around your body and collects images of your heart and chest. These images can show if any of your heart's arteries are narrowed or if your heart is enlarged.
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