机械瓣置换术后患者目标INR1.60~2.20及以每周为单位华法林剂量调整合理性的初步评价

被引:9
作者
肖锡俊 [1 ]
刘关键 [2 ]
梁茂植 [3 ]
任荣 [1 ]
朱喜亮 [1 ]
向瑾 [3 ]
何帆 [1 ]
机构
[1] 四川大学华西医院心脏血管外科
[2] 四川大学华西医院中国循证医学中心
[3] 四川大学华西医院临床药理研究室
关键词
机械瓣置换; 抗凝治疗; 治疗范围时间;
D O I
暂无
中图分类号
R654.2 [心脏];
学科分类号
摘要
目的评价机械瓣置换术后患者目标国际标准化比值(international normalized ratio,INR)1.60~2.20及以每周为单位华法林剂量调整的合理性。方法连续收集2011年7月至2013年2月在四川大学华西医院门诊随访的机械瓣置换手术后≥6个月的患者资料,患者目标INR控制在1.60~2.20内,当INR值超出目标范围或可接受范围时,进行以每周为单位的华法林剂量调整。采用血栓形成、栓塞及出血、应用治疗范围时间(TTR)及治疗范围时间分数(FTTR)来评价抗凝治疗的效果。结果共纳入患者1442例,共检测INR6 461份。患者年龄14~80岁(48.2±10.6岁),其中女性1043例(72.3%),男性399例(27.7%),术后随访6~180月(39.2±37.4月)。INR检测值为0.90~8.39(1.85±0.49),每周达可接受的INR(1.50~2.30)所需华法林剂量为2.50~61.25 mg(20.89±6.93mg)。目标INR及可接受INR范围的TTR分别为51.1%(156640.5天/306415.0天)和64.9%(198856.0天/306415.0天);目标INR及可接受INR范围的FTTR分别为49.4%(3193次/6461次)和62.6%(4047次/6461次)。本研究1443例患者在20个月随访期内出现的抗凝相关并发症包括左房血栓形成2例,脑梗塞2例(1例完全恢复,1例肢体活动障碍);严重出血8例,其中脑溢血3例(1例死亡,2例完全恢复),消化道出血3例,肺癌咳血1例,子宫出血1例(手术切除子宫);非严重出血7例(皮下淤斑或青紫)。结论机械瓣置换术后患者以INR 1.60~2.20为目标并采用以每周为单位的华法林剂量调整是合理的。
引用
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页码:16 / 20
页数:5
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