CHIVA operation, a hemodynamic correction operation with venous network preservation, was introduced to China from Europe by Dr. Zhang Qiang for many years, and the international venous disease conference and standardized training were also held in China. CHIVA treatment can be completed with only a small amount of local anesthetic, which has little effect on the whole body. Even if the elderly patients suffer from basic diseases such as hypertension, diabetes, cor pulmonale and even coagulation dysfunction, most of them can tolerate surgery under the overall evaluation of doctors.