Results:All patients were found mechanical valve prosthesis by Echocardiography(UCG).
结果：超声彩色心动图（UCG）显示所有患者存在机械瓣膜开启障碍。
In the ZAHARA study, mechanical valve prosthesis predicted both maternal and neonatal complications.
ZAHARA研究中，机械瓣对产妇和新生儿并发症均有预测价值。
Objective: To discuss the diagnosis and treatment of delayed mechanical valve prosthesis dysfunction.
目的：对晚发性机械瓣膜功能障碍的诊断和治疗进行探讨。
Objective:To study the dynamic changes of plasma D dimer in patients undergoing cardiac valve replacement with mechanical prosthesis, and to guide postoperative anticoagulant therapy.
目的：研究机械瓣替换术后患者血浆D-二聚体动态变化规律，以指导术后抗凝治疗。
Objective:To study the dynamic changes of plasma D dimer in patients undergoing cardiac valve replacement with mechanical prosthesis, and to guide postoperative anticoagulant therapy.
目的：研究机械瓣替换术后患者血浆D-二聚体动态变化规律，以指导术后抗凝治疗。
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