Active clinical trials for "Angina Pectoris"

A prospective study of 700 patients with coronary artery disease will undergo non invasive evaluation of their carotid arteries by ultrasound and microwave radiometry. The patients will be followed up for 3 years and their outcome regarding the cardiovascular events (death, cardiac events, cerebrovascular events) will be recorded

Investigators adopt cross-sectional study design to carry out the exemplary research in the aspects of disease diagnosis.This study is designed to confirm the hypothesis "acupoint sensitization is associated with a severity of angina pectoris, which may contribute to the diagnosis of stable angina pectoris". After the eligible participants recruited in group, the coronary artery lesions will be evaluated through coronary angiography and the Canadian Cardiovascular Society(CCS) angina pectoris classification will also be evaluated at the same time. The degree of acupoint sensitization will be tested by the electronic Von Frey instrument by one professional acupuncturist with total 12 acupoints, including Shenmen,Yinxi, Shaohao,Jiquan,Neiguan, Ximen, Quze, Shanzhong, Juque, Jueyinyu, Xinyu, Duyu. Analysis were conducted to explore relationships between the degree of acupoint sensitization, the degree of coronary artery stenosis and CCS angina pectoris classification. Diagnostic value will be further analyzed in the final step.

Study of heterogeneity in associations between heart rate and the initial presentation of 12 cardiovascular diseases.

The investigators have previously shown that a frequency of 15.95-16.00 Hz protects against acute myocardial infarction in rats. In the current study the investigators would like to investigate whether this frequency enables cardiac patients with exercise-induced chest pain to exercise at higher workload and heart rate. Therefore, patients will undergo two exercise stress tests, one test after being exposed to 30 minutes of the above mentioned frequency and another test after being exposed to sham (no frequency is turned ON). The investigators will measure changes in the electrocardiogram (ECG), workload, exercise time, and subjective measure of chest pain (angina).