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  被引量:10

Initial Evaluation of Reasonableness of Target INR 1.60 to 2.20 and Warfarin Weekly Dosage Adjustment in Patients after Mechanical Heart Valve Replacement

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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] 

机构地区:[1]四川大学华西医院心脏血管外科,成都610041 [2]四川大学华西医院中国循证医学中心,成都610041 [3]四川大学华西医院临床药理研究室,成都610041

出  处:《中国循证医学杂志》2014年第1期16-20,共5页Chinese Journal of Evidence-based Medicine

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1 442例,共检测INR6 461份。患者年龄14~80岁(48.2±10.6岁),其中女性1 043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±6.93 mg)。目标INR及可接受INR范围的TTR分别为51.1%(156 640.5天/306 415.0天)和64.9%(198 856.0天/306 415.0天);目标INR及可接受INR范围的FTTR分别为49.4%(3 193次/6 461次)和62.6%(4 047次/6 461次)。本研究1 443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。ObjectiveTo evaluate the reasonableness of anticoagulation management strategy in patients after mechanical heart valve replacement. MethodsAll patients were followed and registered continually at outpatient clinic from July 2011 to February 2013, with a minimum of 6 months after surgery. Targeted international normalized rate (INR) 1.60 to 2.20 and warfarin weekly dosage adjustment were used as the strategy of anticoagulation management. Except bleeding, thrombogenesis and thromboembolism, time in therapeutic range (TTR) and fraction of TTR (FTTR) were adopted to evaluate the quality of anticoagulation management. ResultsA total 1 442 patients and 6 461 INR values were included for data analysis. The patients had a mean age of 48.2±10.6 years (14-80 years) and the following up time were 6 to 180 months (39.2±37.4 months) after surgery. Of these patients, 1 043 (72.3%) was female and 399 (27.7%) was male. INR values varied from 0.90-8.39 (1.85±0.49) and required weekly doses of warfarin were 2.50-61.25 (20.89±6.93 mg). TTR of target INR and acceptable INR were 51.1% (156 640.5 days / 306 415.0 days), 64.9% (198 856.0 days / 306 415.0 days), respectively. FTTR of target INR and acceptable INR were 49.4% (3 193 times / 6 461 times), 62.6% (4 047 times / 6 461 times). There were 8 major bleeding events, 7 mild bleeding events, 2 thromboembolism events, and 2 thrombogenesis in the left atrium. ConclusionIt is reasonable to use target INR 1.60-2.20 and warfarin weekly dosage adjustment for patients after mechanical heart valve replacement.

关 键 词:机械瓣置换 抗凝治疗 治疗范围时间 

分 类 号:R654.2[医药卫生—外科学]

 

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