| The selectivity coronary angiogrphy are generally accepted for the golden standard of coronary heart disease. To those patients with normal angiogram, the diagnosis of the coronary heart disease are basic expelled, but some patients with normal angiogram are found with angina pectoris symptom, electrocardiogram change and positive electrocardiogram exercises test. This text analyse the clinical characteristics in 256 patients with normal angiogram, chest -pain or/and electrocardiogram change. Result: 78 cases have hypertension, occupying for 30.46% of all cases, and among them, 54 cases have left ventricular hypertrophy, occupying for 21.091%; 76 cases have plant nerve function mess, occupying for 29.68% of all the cases; 7 cases with acute cardiac infarction, occupying for 2.73%;8 case with cardiomypathies, occupying for 3.11%; 29 cases with vertebrobasilar insufficency, occupying 11.33%; 16 cases with cervical vertebra disease, occupying for 6.25%; 10 cases with dyslipidemia, occupying for 3.90%; 8 cases with diabetes, occupying for 3.13%; 12 cases with early repolarization sydrome, occupying for 4.69%.8 cases with heart valve disease, occupying for 3.13%. The principle that hypertension and left ventricular hypertrophy cause chest pain and electrocardiogram change maybe is that along with the development of the hypertension, the left ventricular weight increase which gradually leads left ventricular hypertrophy, but coronary artery do not increase congruously or increase disproportionate with thick degree. Resulting in the blood supply of unit volume myocardial decrease, and which cause the opposite blood lacking in myocardial. All these lead blood lacking of myocardial symptom or electrocardiograms changes. So it is different from blood lacking that caused by coronary narrow. When hypertensive patients have the angina pectoris symptom, most of them appear tired angina pectoris. Which also suggest it is caused by opposite blood lacking cause of myocardial. In addition the coronary flow reserve decrease after ventricular hypertrophy, its result is the blood supply is good in basic situation, but under the situation of exercising, the needs of blood of the myocardial increase, the blood supply of the unit weight myocardial is lower than normal. The coronary flow reserve can the coronary function of physiological and pathologic circulation, if coronary artery has no obvious narrow, but the coronary flow reserve is low, can clue to the coronary artery capillaries pathological changes. The principle of normal coronary angiography after myocardial infarction is the original criminal coronary artery having no pathological changes, but because some inducement cause the coronary endothelium damaged. Which activate blood platelets system and large quantity blood vessels active material release. All this lead the coronary convulse. Once time is long enough, the cardiac infarction may occur. The thrombus maybe autolyze later or is melted after therapy. It also probably that the coronary artery pathological changes take place in the pimping blood vessel, the artery can't be show. The shortage of blood supply of carotid artery and vertebrobasilar insufficiency make the spinal heart blood vessel regulate centrum the axis lack the blood, which lead the blood supply of coronary artery lacking, cardiac arrhythmia, the electrocardiogram change and chest-paint. The cervical vertebra disease also can causes the chest-pain and the electrocardiogram changes. Which is related to the anatomise that control cardiac nerve. Dyslipidemia and diabeteses are important reasons to cause coronary atherosclerotic heart disease. In this study the ratio of dyslipidemia and diabetes is lower, which is a reasons that coronary angiogrphy is normal. The ratio of plant nerve function mess is higher in this study, therefore to the young patients with no typical model chest-pain and electrocardiogram change, coronary angiogrphy should be made, avoiding the misdiagnosis and blindnesses treatment. Hypertrophic card...
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