Effect of Ligustrazine hydrochloride on coagulation reaction and inflammation reaction in single valve replacement patients with rheumatic heart disease undergoing cardiopulmonary bypass

Objective To observe the protection effect of Ligustrazine Hydrochloride(LH)on coagulation reaction and inflammation reaction in single valve replacement patients with rheumatic heart disease undergoing cardiopulmonary bypass(CPB).Methods Totally 40 patients undergoing single valve replacement were recruited in the study and randomly assigned to the two groups,the treatment group