Clinical Analysis In Patients With Abnormal Treadmill Exercise Test But Normal Coronary Angiography

Objective:To analyze the clinical features of patients with chest pain and abnormal treadmill exercise test but normal coronary angiography.Methods:The clinical datas of 29 patients with chest pain and abnormal treadmill exercise test but normal coronary angiography were analyzed retrospectively. Results:In 29 cases patients with chest pain and abnormal treadmill exercise test but normal coronary angiography:the total group including 14 males and15 females,age ranged from 37 to 65(49.82 ±3.56) years;①most of patients had atypical chest Pain in16 cases(55.17％),patients had typical chest Pain in 13 cases(44.13％);②hypertension existed in 4 cases (13.79%);③cardiac arrhythmia existed in 6 cases(20.7%);④IGT existed in 3 cases(10.34%);⑤case of high plasma TC level(14 cases, 48.27％) were predominant in abnormal plasma lipid level(16 cases,55.17%).⑥there were 9 cases(31.03%) without risky factor.⑦results of treadmill exercise test were positive in 22 patients and doubtful positive in 7 patients;there were 20 cases whose ST-T of rest status ECG changed and 9 cases whose rest status ECG was normal;there was 1 case demonstrated myocardial ischemic by myocardial perfusion imaging; echocardiography were normal in 22 cases;X-ray test were normal in 29 cases. Conclusion:To these who have seldomly cardiac vascular risk factors and have untypical symptom of angina pectoris,the diagnosis of CHD should be maden cautiously even though they have abnormal treadmill exercise test.It is suggested that coronary angiography should be considered for these pectoris.To these who have typical symptom of angina pectoris and abnormal treadmill exercise test but normal coronary angiography,the mechanisms of the disease was unclear.Microvascular angina and coronary arteries remodeling are relational.