Coronary insufficiency

Coronary arterial insufficiency: There is no onset of angina pectoris, but the electrocardiogram at rest or during exercise shows coronary arterial insufficiency, that is, the ST segment decline and T wave change are called coronary arterial insufficiency. It is clinically divided into two types. One is symptomatic coronary insufficiency, although there is no angina onset, but it has symptoms of cardiac insufficiency and arrhythmia. If there is only abnormal waveforms of the electrocardiogram and no symptoms, it is called asymptomatic Insufficient coronary blood supply, also known as recessive coronary heart disease.