Objective To study variation of plasma warfarin concentration and its clinical significance in patients with heart valve replacement.

目的探讨心瓣膜置换术后血浆华法林浓度的动态变化及其临床意义。

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Heart valve replacement surgery typically involves replacing the faulty or leaky valve with a pig or cow tissue valve.

一般心脏瓣膜置换手术包括用猪或牛组织瓣膜置换损毁或有漏洞的瓣膜。

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It suggest that after valve replacement, though the recovery of heart function was promoted, the improvement of microcirculation was delayed and not as good as expected.

从而论示风心病心瓣模替换术后，虽促进了心功能的进一步恢复，但其微循环改善较迟和不理想。

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Simpson had a heart valve replacement in February and had returned home recently, Currie said.

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One patient who was preparing for a heart valve replacement seemed slightly calmer after her surgeon showed her an intraoperative video of the procedure.

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It's been seven months since Max's last surgery -- an open heart pulmonary valve replacement -- and he has been cleared for all activities by his doctors.

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