Vitamin K antagonists (VKAs) are class I oral anticoagulants that are widely prescribed following surgical heart valve implantation. The objective of this study was to quantify the relative effects of and genotypes in predicting VKA dosing. A total of 506 South Indian patients with mechanical prosthetic heart valves who were prescribed oral VKAs, such as warfarin or acenocoumarol, were genotyped. The discriminatory ability of mutant genotypes to predict dose categories and bleeding events was assessed using regression analysis. The rs9923231, and mutant genotypes significantly influenced VKA-dose requirements and explained 27.47% of the observed dose variation. These results support pharmacogenetic screening for initial VKA dosing among South Indian patients with mechanical prosthetic heart valves.
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| http://dx.doi.org/10.2217/pgs-2022-0014 | DOI Listing |
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