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FW-Ⅱ轴流泵短期辅助治疗急性左心衰初步临床评价 被引量:12

Clinical evaluation of FW-Ⅱ axial blood pump short-term assistance for treating acute left heart failure
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摘要 目的 初步评价FW-Ⅱ轴流泵短期辅助治疗急性左心衰的安全性和有效性.方法 选择术后撤除体外循环困难的重症冠状动脉硬化性心脏病(冠心病)患者5例,经左心房牛颈静脉-肝素涂层管道-FW-Ⅱ轴流泵-肝素涂层管道-股动脉循环支持和卸负荷,观察围手术期血流动力学和心肌损伤标记物,对比分析不同转速下血浆vW因子含量和白细胞-血小板聚集体的表达.结果 FW-Ⅱ轴流泵辅助(24.0±2.6)h,最高流量3.2 L/min,辅助期间泵转速7 000~9000 r/min,流量1.9~3.0 L/min,均无机械故障发生.1例患者术后第7天死于多器官功能衰竭,其余4例均顺利出院,近期随访结果良好.置入FW-Ⅱ轴流泵前平均动脉压(MAP)为(50.29±6.98) mmHg(1 mmHg=0.133 kPa),心脏指数(CI)为(1.70±0.23) L.min-1.m-2,全身外周血管阻力(SVR)为(2009.86±129.46) dyn.s.cm-5;置入后8 000 r/min时MAP (65.43±6.90) mmHg,CI(2.53 ±0.27)L.min-1.m-2,SVR(1 578.14±356.70)dyn.s.183cm-5,其中MAP和CI显著增加,SVR显著下降,P<0.01,差异均有统计学意义.置入前外周血中肌酸激酶同功酶(CK-MB)和肌钙蛋白Ⅰ(cTnI)含量为(147±20) IU/L和(12.6±5.7)μg/L,置入后12h时CK-MB和cTnI水平降至(66±11) IU/L和(8.4±3.8) μg/L,差异均有统计学意义,P<0.01.同7 000 r/min比较,vW因子含量在8 500 r/min时显著增加[(2.59 ±0.57) U/L对(1.26±0.43) U/L,P<0.01];血小板活化和白细胞-血小板聚集体数变化呈V形变化,其中8000 r/min时最低(15±3)%,7 000 r/min和9000 r/min时达最高值(33±3)%和(31±5)%.结论 FW-Ⅱ轴流泵短期辅助可有效促进急性左心衰后心脏功能复苏,8 000 r/min是最佳平衡转速. Objective To evaluate the safety and efficacy of FW-Ⅱ axial blood pump short term assistance for treating acute heart failure.Methods We selected 5 patients who were difficult to remove cardiopulmonary bypass,and implanted FW-Ⅱ axial blood pump by left atrium-pump-femoral artery.Perioperative hemodynamics,circulating markers of myocardial injury,vW factor levels in plasma and white blood cell-platelet aggregates in different rotational speed were observed and analyzed.Results All patients were assisted for(24.0± 2.6) h by FW-Ⅱ axial blood pump with speed of 7 000-9 000 r/min,flow of 1.9-3.0 L/min,and no mechanical dysfunction.Compared with mean artery pressure(MAP),cardiac index(CI) and systemic vascular resistance index (SVRI) before implantation of FW-Ⅱ axial pump was (50.29 ± 6.98) mmHg (1 mmHg=0.133kPa),(1.70±0.23)L. min-1 . m-2 and (2 009.86 ±129.46) dyn.s. cm-5,MAP and CI significantly increased,while SVRI significantly reduced at 8 000 r/min after pump assistance [(65.43± 6.90) mmHg,(2.53 ±0.27) L .min-1 . m-2,(1 578.14 ±356.70) dyn . s .cm-5,P 〈 0.01).CK-MB and cTnI levels reached significant decrease after 12 hours of pump assistance and maintained low level [(66±11) IU/L and (8.4±3.8) μg/L,P 〈 0.01].Compared with 7 000 r/min,vW factor levels significantly increased at 8 500 r/min [(2.59±0.57) U/L vs (1.26 ± 0.43) U/L,P 〈0.01].Platelet activation and white blood cell-platelet aggregation was the lowest at 8 000 r/min,and reached the most high level at 7 000 and 9 000 r/min [(15 ± 3) %,(33 ± 3) % and (31± 5) %)].Conclusion FW-Ⅱ axial flow pump can be effectively used for short-term treatment of acute ischemic left ventricular failure,8 000 r/min is optimum speed to balance hemodynamics and biocompatility.
出处 《中华胸心血管外科杂志》 CSCD 北大核心 2014年第10期599-602,共4页 Chinese Journal of Thoracic and Cardiovascular Surgery
基金 国家十二五科技支撑计划资助(201lBAIllBOO)
关键词 轴流泵 急性心衰 血流动力学 心肌损伤 Axial blood pump Acute heart failure Hemodynamics Myocardial injury
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参考文献17

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共引文献17

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