Abstract:【Objective】 To explore the risk factors affecting hemodynamic stability after carotid stent implantation(CAS) and their effect on the prognosis. 【Methods】 From January 2019 to February 2021, 50 cases of patients with CAS were divided into two groups according to whether the hemodynamic damage(damage to blood flow dynamics) occurred, the risk factors affecting hemodynamics in patients and thier effect on the prognosis quality of patients were analyzed. 【Results】 In the results of single factor analysis, history of hypertension, history of coronary heart disease, severe stenosis, carotid plaque echo with calcification,post-balloon dilatation, dilatation rate ≥70% and open-loop stent were the risk factors for postoperative hemodynamic damage(P<0.05).Multifactor logistic regression analysis showed that the risk factors of hemodynamic damage in patients were post-balloon dilatation and open-loop stent(P<0.05). In terms of prognosis quality, there was no significant difference between the two groups in the incidence of stroke and endpoint events within 1 year after operation(P>0.05), and the length of hospital stay was longer in patients with hemodynamic damage than patients without hemodynamic damage(P<0.05). 【Conclusion】 Postoperative hemodynamic damage factors in the CAS is severe stenosis and post-balloon expansion, which will require medical staff to provide targeted interventions for patients, improve the prognosis quality of patients.