Li Dongyuan proposed the theory of "fire and original qi incompatibility" in his book

Piwei Lun

expounding the incompatible relationship between yin fire and original qi. They restrain and overcome each other. The rise and fall of original qi and yin fire is of great significance in the occurrence and development of ischemic stroke. When the original qi of the body is deficient and the yin fire is blazing in the interior

the internal wind moves and rushes straight to the brain to cause stroke. The key pathogenesis of ischemic stroke in the acute period is the excessive internal accumulation of yin fire

which is primarily manifested as fire-heat

phlegm stasis

and other excess syndromes during this period. As the disease progresses

the trend of yin fire gradually declines

the excess fire dies down

and deficiency fire gradually appears. Although the syndrome of excess has not disappeared

the deficiency of original qi is the most important pathogenesis in the recovery period and sequelae phase after ischemic stroke. Based on this

our team proposed the therapeutic principle of purging yin fire and tonifying original qi. According to the different pathogenesis focuses in different periods

the appropriate treatment method should be selected. In the acute period of ischemic stroke

the emphasis is on purging the excess yin fire

and the original qi will be protected when the yin fire is purged. In the recovery and sequelae periods

the original qi should be mainly tonified

and the kidney should be replenished to tonify the original qi. When original qi is abundant

yin fire will be restrained. At the same time

other treatment method should also be combined according to the syndrome differentiation to improve the therapeutic effect. This article explores the pathogenesis and treatment of ischemic stroke based on the theory of "fire and original qi incompatibility"

with the aim of providing new ideas for the clinical treatment of ischemic stroke.