Atrial fibrillation（ AF） belongs to category of "palpitation"in Chinese medicine. In the theories of Chinese medicine

the occurrence of AF relates to external causes such as the environmental impact

and internal damages like food

emotion and medication. The pathogenesis characteristics of AF include deficiency of Qi-bloodYin-Yang and excess of wind-fire-phlegm-toxicity. It relates to heart spirit. AF attack could be described by wind’ s characteristics. The authors hold that

the paired physiological relationship between the heart and the small intestine is reflected in the aspects of food and water fluid metabolism. Heart governing influences the small intestine’ s function. While the small intestine’s separating the useful from the waste could maintain heart keen. If there are disorders of the small intestine in separating the useful from the waste

the deficiency（ due to clear Qi in the lower part of the body） and the excess（ due to turbid Qi rising up） confuse heart spirit turbidly. Thus AF attacks.

The authors treat AF according to these theories. If patients have simultaneous phenomena

such as constipation

upset

sticky stool

or they are easy to be frightened

herbs of regulating intestine

smoothing heart

giving way to pathogen and tranquillization

such as Binglang [Semen Arecae

槟榔]

Huomaren [Fructus Cannabis

火麻仁]

Hupo [lynx stone

琥珀]

etc. are added. The satisfied effective would be obtained.