[Cluster analysis on TCM syndromes in 319 coronary artery disease patients for establishment of syndrome diagnostic figure].

Objective: To explore the diagnostic figures for TCM syndrome typing in coronary heart disease (CHD) patients.

Methods: A retrospective investigation was carried out in 319 CHD patients hospitalized from Jan. 2004 to Dec. 2004 in authors' hospital. Through cluster analysis, descriptive statistics and frequency normalization in combination of clinical observation, the diagnostic figures of TCM syndromes were obtained.

Results: The figures for qi deficiency syndrome were: primary symptoms: chest pain and stuffiness, secondary symptoms: tiredness, short breath, poor appetite, light colored tongue, deep and thready pulse; for qi deficiency with phlegm and blood stasis syndrome: primary symptoms: chest stuffiness and pain, secondary symptoms: tiredness, insomnia, palpitation, obesity, dark red tongue, string and slippery pulse; for turbid-phlegm blocking collateral syndrome: primary symptoms: chest stuffiness, secondary symptoms: cough, expectoration with much white sputum, tiredness, short breath and poor appetite, light colored tongue with white greasy coating, slippery pulse.

Conclusion: Research on diagnostic criteria for TCM syndrome typing could be established upon clinical epidemiologic survey and statistic analysis in combining with specialists' suggestions to primarily set the referrence figures.