重组人促红细胞生成素预处理在风湿性心脏瓣膜病围手术期心肌保护作用的研究  

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作  者:谭雄[1] 赖应龙[1] 梅波[1] 李金洁[1] 何光杰[1] 费俊杰[1] 谭何易 赵永生[1] 

机构地区:[1]南充市川北医学院附属医院胸心外科,四川南充637000

出  处:《中华临床医师杂志(电子版)》2016年第7期171-175,共5页Chinese Journal of Clinicians(Electronic Edition)

摘  要:目的探讨重组人促红细胞生成素(Recombinant humanerythropoietin,rHuEPO)预处理在体外循环(cardiopulmonary Bypass,CPB)心脏直视手术围术期的心肌保护作用。方法选择风湿性心脏瓣膜病人(拟行二尖瓣+主动脉瓣双瓣瓣膜置换)40例,采用随机数字表分为1个对照组(A组),3个实验组(B、C、D组),每组10例。实验组术前三天每天皮下注射rHuEPO,B组rHuEPO每次注射剂量为50u/Kg,C组为100u/Kg,D组为200u/Kg,对照组心组)未作特殊处理。所有患者均在麻醉诱导前(T0)、主动脉开放时(T1)、主动脉开放后2h(T2)、主动脉开放后6h(T3)、主动脉开放后12h(T4)、主动脉开放后24h(T5)、主动脉开放后36h(T6)、主动脉开放后72h(T7)、主动脉开放后96h(T8)、主动脉开放后120h(T9)十个时间点采取静脉血标本,分别检测血常规、血清cTnI、血清cKMB的浓度变化;分别于阻断主动脉时、阻断主动脉后30min和阻断主动脉后60min三个时间点切取三小块右心房梳状肌组织。结果组内各时间点血清cTnI、血清cKMB浓度均较麻醉诱导前升高,差异具有统计学意义(P〈0.05)。而同一时间点三个不同剂量rHuEPO预处理的实验组与对照组进行两两组问比较:不同剂量rHuEPO预处理组在各时间点血清cTnI、血清cKMB浓度明显低于对照组(P〈0.05),且血清cTnI、血清cKMB浓度随rHuEPO预处理剂量的增大而降低,差异具有统计学意义(P〈0.05)。三个不同剂量rHuEPO预处理的实验组和对照组患者右心房梳状肌组织随着阻断时间的延长心肌细胞超微结构损伤程度越重,且损伤程度随着rHuEPO预处理剂量的增大而减轻。结论rHuEPO预处理可以降低CPB心脏瓣膜置换术中、术后患者血清cTnI、血清cKMB的浓度,减轻心肌缺血缺氧和缺血再灌注损伤。随着阻断时间的延长心肌细胞超微结构损伤程度越Objective To discuss Recombinant Human Erythropoietin (rHuEPO) pretreatment perioperative cardioprotective effects inOpen-heart surgery by Cardiopulmonary Bypass (CPB). Methods Choose 40 patients with rheumatic heart valve who will be double valve replacement.Randomly and averagely divided into A control group (A) and three experimental group (B, C and D).Experimental group daily hypodermic injectionrHuEPO three days before surgery. Group B rHuEPO dose is 50 u/kg each day, group C is 100 u/kg, group D is 200 u/kg, and group A placebocontrol.Take venous blood on the time of before anesthesia induction (TO), aortic open (T1), 2 h after aorta open (T2), 6 h after (T3), 12 h after (T4), 24 hafter (T5), 36 h after (T6), 72 h after (T7), 96 h after (T8), and 120 h after opening the aorta (T9), to detection Blood Routine, cTnI and CK-MB. Takethree small pieces of right atrium comb muscle tissue on the time of blocking aorta, 30 min and 60 min after blocking, to electron microscope detect.Results Firstly, cTnI and CK-MB on T1-T9 were higher than TO in each experimental group (P〈0.05). Secondly, on the same time, cTnI and CK-MB inthe experimental group (B, C and D) were higher than the control group (A) with statistically significant difference (P 〈 0.05), and with the increase ofrHuEPO dose the cTnI and CK-MB became lower and lower (D〈C〈B). Thirdly, as far as myocardial cell ultrastructure damage degree, the longerblocking aorta the more serious in each experimental group (B, C and D), and rHuEPO could relieve this damage in a dose dependent manner.Conclusions RHuEPO pretreatment can reduce the concentration of serum cTnI and CK-MB and myocardial injury in a dose dependent manner duringheart valve replacement by CPB.

关 键 词:重组人促红细胞生成素 体外循环 心脏手术 心肌保护 

分 类 号:R692.5[医药卫生—泌尿科学]

 

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