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风湿性心脏病继发三尖瓣关闭不全患者血清BNP、sST2蛋白水平的变化

, PP. 2186-2189

Keywords: 风湿性心脏病,继发性三尖瓣关闭不全,sST蛋白,B型脑钠肽

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Abstract:

目的观察风湿性心脏病继发不同程度三尖瓣关闭不全患者血清B型脑钠肽(B-typenatriureticpeptide)和可溶性ST2蛋白(sST2)水平,探讨血清BNP、sST2蛋白与继发性三尖瓣关闭不全程度的相关性及意义。方法选取2014年3-5月在我院心血管外科单纯行二尖瓣置换术,伴或不伴三尖瓣手术的患者80例,其中男性20例,女性60例,中位年龄50(18~73)岁,按超声心动图测定的三尖瓣返流面积分为四组:①返流面积<2.0cm2为无或局限性返流组(A组),②2.0cm2≤返流面积<5.0cm2为轻度返流组(B组),③5.0cm2≤返流面积<10.0cm2为中度返流组(C组),④返流面积≥10.0cm2为重度返流组(D组)。用酶联免疫吸附法检测四组患者血清BNP及sST2蛋白水平,比较不同程度三尖瓣返流患者之间血清BNP及sST2蛋白水平的差异。结果C组血清BNP水平为(422.52±376.62)pg/mL,D组为(436.90±290.40)pg/mL,较A组(142.71±83.71)pg/mL明显升高,差异具有统计学意义(P<0.01),但C、D组间差异无统计学意义(P>0.05),B组为(210.62±181.83)pg/mL,与A组比较差异无统计学意义(P>0.05)。C组血清sST2蛋白水平为(74.90±57.51)ng/L,A、B、D组分别为(35.25±23.33)、(48.76±32.83)、(56.87±34.46)ng/L,C组较A、B、D组明显升高,差异有统计学意义(P<0.05),A、B、D三组组间差异无统计学意义(P>0.05)。血清BNP水平与三尖瓣返流面积(r=0.54,P<0.01)、左房径(r=0.28,P=0.01)、右房径(r=0.40,P<0.01)、右室径(r=0.32,P<0.01)呈正相关,血清sST2蛋白水平与三尖瓣返流面积(r=0.35,P<0.01)、右房径(r=0.32,P<0.01)呈正相关。结论继发性三尖瓣中重度返流患者血清BNP及sST2蛋白水平明显高于三尖瓣无或局限性返流患者,且二者水平三尖瓣返流面积、右房径、右室径具有显著相关性。

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