Study on syndrome differentiation and treatment in the management of chronic stable coronary artery disease to improve quality of life

BACKGROUND: Chronic stable coronary artery disease (SCAD) is a general term for all kinds of coronary artery disease (CAD), which includes patients with chronic stable angina, old myocardial infarctions, and also stable condition after revascularization (i.e., percutaneous coronary intervention, coronary artery bypass graft). According to 2012 AHA/ACC guidelines, the objective of the treatment for SCAD is to maintain or recover patients’ exercise tolerance, quality of life, and avoid complication like heart failure, so as to decrease mortality, eliminate symptoms, and avoid adverse reactions. Traditional Chinese medicine (TCM) has 2000 years of history in managing CAD and has its advantages in improving quality of life. Using scientific method to evaluate, demonstrate, and conclude the clinical curative effect of TCM is an extremely important task for both TCM and integrative Chinese and Western medicine in the treatment of CAD. METHODS: This research is to collect real effective cases from authoritative TCM cardiologists’ clinic, so as to build a TCM diagnosis and treatment information database that involve 2000 patients from 32 different top-3 hospitals of china. The primary outcome includes EuroQol-5 Dimensions and Four diagnostic method of TCM, and secondary outcome includes angina score and some laboratory indexes like electrocardiograms, dynamic electrocardiogram, ultrasonic cardiogram, and treadmill exercise testing. This research uses SPSS17.0. to do the statistical analysis application. Enumeration data use χ(2) test and measurement data which fit normality test use t test. The analysis of drugs usage in different diseases, different syndromes and different life quality effect will use principal component analysis, factorial analysis, clustering analysis. and point mutual information method, and so on. RESULTS: This research, based on past syndromes research and real clinical effective chronic SCAD cases, aim to build a TCM diagnosis and treatment information database.