Electrocardiogram ST-T abnormalities are myocardial ischemia?

Release date: 2016-08-02

"V1-V4 lead T wave inversion", the electrocardiogram of the 46-year-old Ms. Zhao’s physical examination has been reported this way for a long time. She is usually depressed, she does not have cardiovascular risk factors, she has been suspected of myocardial disease, and has checked There was no abnormality in cardiac ultrasound and cardiac magnetic resonance imaging. Not long ago, the coronary image was negative. What is this disease? He Yanmian, deputy director of the Department of Cardiopulmonary Function, Nanjing Chest Hospital, gave Ms. Zhao an electrocardiogram when she was deeply inhaled. As a result, T wave immediately turned into normal. Ms. Liu’s brows suddenly stretched out, and the worries of years have finally vanished.

He Yanmian introduced that some people may think that there is a problem with ST-T abnormality on the electrocardiogram, and it will be linked to heart disease. In fact, ST-T is susceptible to a variety of complex factors inside and outside the receptor, and some unusual changes can occur. Electrocardiography is called ST-T normal variation. Just as Ms. Zhao’s electrocardiogram performance is a persistent juvenile T wave, it may be caused by the local potential of the heart incision electrode that is not covered by the lung leaf. It exists in infants and young children and continues into adulthood. Once the lungs are inflated, the lungs are inflated to "shadow" the heart, and the T wave becomes erect. It is a seemingly abnormal normal ECG phenomenon.

Similar ECG abnormalities include some types of early repolarization, Ediken type ST elevation, two and a half minutes syndrome, apical phenomenon, orthostatic T, isotonic T, and T and β receptor after tachycardia The diagnosis of electrocardiogram such as hyperthyroidism, such a heterogeneous ECG phenomenon has no pathological basis and cannot be confused with heart disease. In the face of these phenomena, the diagnosis of electrocardiogram must be carefully examined. It is often necessary to take measures such as breathing, changing position, changing electrodes, using drugs and dynamic observation. It is easy to identify and distinguish from abnormalities. It has been reported that 10%-30% of people with no structural heart disease, especially women, may present with normal ST-T variants and other physiological abnormalities.

Experts remind that it is routine to see an ECG for medical examinations and physical examinations. Using this simple inspection tool, it is indeed possible to “detect” some diseases from the clues of abnormal bands. Each change graph has its clinical significance behind it. Simple but not simple. In particular, ST-T changes are complicated and complicated. There are various reasons for heart and heart, pathophysiology, and reading ECG is not just about talking on paper. It is more like seeing flowers in the fog. It needs to find features, closely contact with the clinic, and comprehensively analyze and judge. Make a more reasonable explanation in ST-T's mood.

Source: Nanjing Morning News

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