“龙虎回环”是对肝肺气机升降的描述，即肝升于左，肺降于右。二者一左一右，一升一降，主导 一身气机运动。肝肺气机升降有序，则气血平和，百病不生。高血压病的病机关键在于肝肺气机逆乱，气血失 和。在“龙虎回环”理论的指导下，从“肝升太过”“肺气亏虚”“肝虚肺停”“肝郁肺闭”四个方面阐述高血 压病，治疗上采取“平肝、养肝、散肝”“补肺、理肺、宣肺”等治法调节肝肺气机，针对不同临床表现佐以 “益气、活血、祛痰、化瘀、潜阳、滋阴”等治法改善临床症状，为中医治疗高血压病提供新的临床思路。
Abstract： The term “dragon- tiger loop” describes the ascending and descending of qi movement governed by the liver and the lung， that is， liver qi ascending on the left and lung qi descending on the right. The two organs govern the qi movement of the whole body with one left and one right， and one ascending and one descending. An orderly qi movement governed by the liver and the lung can harmonize qi and blood and prevent the occurrence of diseases. The key to the pathogenesis of hypertension lies in the disorder of the liver- lung qi movement and the disharmony of qi and blood. Under the guidance of the theory of "dragon- tiger loop"， this article elaborates on hypertension from four aspects， namely "liver qi ascending too much"， "lung qi deficiency"， "liver deficiency and lung qi stagnation"， and "liver constraint and lung blocking". In terms of treatment，methods such as "calming the liver，nourishing the liver，and dispersing the liver" and "tonifying the lung，regulating the lung，and diffusing the lung" can be adopted to regulate the liver-lung qi movement. Clinical symptoms can be improved by methods such as "boosting qi， activating blood，dispelling phlegm，resolving blood stasis，subduing yang，and nourishing yin" based on different clinical manifestations. Finally， it is hope to provide new clinical ideas for the treatment of hypertension in Chinese medicine.