| Object: The definition of TCM constitution is always rely on patients' complaints and the doctor's inspection, auscultation, ask and palpation the four diagnostic methods, which is subjectivity, fuzzy. Even the researchers conducted constitution defines standardization, objective research, hoping to use all kinds of modern physical a uniform method of detecting effectively "gold standard". But so far, unrewarding. And to all the various physical and biological and genetic testing methods are expensive and time-consuming, and more limited in the clinical application. This makes finding a clinical practicable and good effect physique define method become TCM constitution study top priority.Method: Through the reviewing of traditional and modern literature analyze the related theory of damp-heat constitution's origin, connotation and extension. Through the retrospective summarizing data, analyzing the blood pressure characteristics of damp-heat constitution in clinical cases, to find new more convenient and effective methods of determination of damp-heat constitution. Through the prospective investigation of the clinical cases, validate whether blood pressure and pulse pressure can be applied in the differential diagnosis of damp-heat constitution.Result: Damp-heat constitution group's SBP and PP is lower than non-damp-heat constitution group's, but DBP is higher than non-damp-heat constitution group's. There are significant correlation between the PP and the characteristic symptoms of damp-heat constitution group.Conclusion: Theoretical study shows that: the exploratory study of blood pressure and pulse pressure characteristics to auxiliary define the damp-heat constitution has sufficient theoretical basis. Damp being a kind of Yin pathogen, overcast and viscid, so damp pathogen can retardarce the mobile of qi in damp-heat condition." QI acting as the commander of blood," so qi don't move make blood block barrier and the human body's internal environment barrier too. QingYang does not rise and ZhuoYin does not decent, which reflected in the circulatory system shall be the decline of cardiac ejection, increase of peripheral resistance, decrease of vascular smooth muscle compliance. Because all of these:DBP increase, SBP decline while pulse pressure decreased.Clinical epidemiological study shows that: pulse pressure of damp-heat constitution is often in normal subsidence level, and more satisfied with DBP increasing and SBP reducing. Along with damp-heat constitution patients' pulse pressure reducing, the characteristics symptoms of damp-heat constitution are more obvious, and more damp-heat constitution. Blood pressure and pulse compression characteristics as the auxiliary diagnostic criteria of damp-heat constitution and the auxiliary quantification criteria of the effect of conditioning and treating damp-heat constitution have a extensive future. |