Abstract：Objective: To study the clinical value of CYP2C9 and VKORC1 gene polymorphisms in guiding postoperative anticoagulation therapy in patients with heart valves. Methods: A retrospective analysis was performed on AIS patients admitted to our hospital from March 2014 to July 2017. 95 patients undergoing CYP2C9 and VKORC1 gene polymorphism detection were selected as the study group, and 95 patients without detection were selected as the control group. The CYP2C9 and VKORC1 genotypes of the patients in the study group were observed, the warfarin dosage and the international normalized ratio (INR) compliance time of the patients with different genotypes were compared, and the INR compliance time of the study group and the control group were compared. Results: In the study group, 85 patients were of CYP2C9 *1/*1 type, 9 were of CYP2C9 *1/*3 type, 1 was of CYP2C9 *3/*3 type; 77 were of VKORC1 type AA, 18 were of VKORC1 AG type, VKORC1 GG type was not found. In the study group, patients with CYP2C9 *1/*1 type had a higher actual dose of warfarin than CYP2C9 *1/*3 patients, and the time for INR to reach the standard was shorter, and the difference was significant (P<0.05); patients of VKORC1 AA type had lower actual dose of warfarin, compared with VKORC1 AG patients, and the INR compliance time was shorter, and the difference was significant (P<0.05). The study group had shorter INR compliance time than the control group, and the difference was significant (P<0.05). Conclusion: The detection of CYP2C9 and VKORC1 gene polymorphisms in the postoperative anticoagulation therapy of heart valve patients plays an important role in the formulation and adjustment of the initial treatment plan, and can provide an important reference for the early clinical plan formulation.
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2022, Vol. 28 
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