Coronary heart disease is how the disease

Coronary heart disease is in the elderly, especially the mental work, the activities were less common heart disease. In recent years, in both rural and urban trends of the disease have increased. Coronary heart disease is due to coronary sclerosis (myocardial nutritional supply of blood vessels, each about a hardening of the left common) cause myocardial ischemia, hypoxia of a heart attack, it is known as the "ischemic heart disease." According to clinical and ECG changes, coronary heart disease are usually divided into five large: ① occult: the most minor type, myocardial no significant change in asymptomatic patients, but in doing electrocardiogram and found that ischemic myocardial performance. ② angina type: Major cardiac performance for the former District colic paroxysmal or pressed into flu, continued for a few minutes each time, generally not more than 15 minutes. But there are also not typical, it is because of paroxysmal coronary artery spasm or contraction caused by persistent. ③ myocardial infarction type: this type is more serious. Coronary artery spasm or blockage long time, so that the distal arterial blockage and myocardial necrosis due. Patients with severe pain before the heart, sweat, dying flu, duration can be more than one minute. Improper handling can be directly died of heart failure, arrhythmia or shock. ④ myocardial sclerosis type: this type of chronic hypoxia for myocardial ischemia, myocardial fibrosis caused showed enlarged heart, heart failure and serious arrhythmias. Patients with lightheadedness, heart palpitations, shortness of breath and other performance. ⑤ of sudden death: this type of the most serious, serious disorders due to cardiac rhythm or sudden arrest, the patient died quickly. Over the past treatment of coronary artery disease coronary expansion of the selected drugs, the general effect is not ideal. Then surgery treatment, called "coronary artery bypass grafting." Surgery often choose the great saphenous vein in vivo as a bridge, even in the coronary artery stenosis proximal and distal blood flow to the great saphenous vein this bridge into the distal coronary artery. But this vein thrombosis may occur, and to thoracic surgery. More is currently in use, first coronary angiography, and then intubation to narrow, making use of outside pressure within the balloon dilatation catheter due to the narrow expansion. This method is simple, effective, it is an ideal method of treatment.