[Literature study on the syndrome diagnosis and classification of coronary artery disease]

To investigate the application of diagnosis methods for coronary artery disease (CAD) and the status quo of its syndrome typing. The literature content analysis was used in this study. The frequency statistics was performed by comprehensively collecting CAD (thoracic obstruction) syndrome typing correlated literatures, designing content analysis tables, extracting information such as typing methods, typing elements, and syndrome typing, and so on. Results showed that blood stasis, yin deficiency, qi deficiency, yang deficiency, phlegm turbidity, and other syndrome elements extensively exist in literatures concerning CAD syndrome typing. Modem doctors prefer to use syndrome typing of qi, blood, jinye, and eight principles in syndrome typing of CAD more frequently. The asthenia in origin and asthenia in superficiality has been widely recognized as the basic syndrome of CAD.