黃朝發(fā),李菊香,顏素娟,姜宇,游志剛,徐勁松,姜醒華,楊人強(qiáng),吳延慶,吳清華,程曉曙
單核細(xì)胞/高密度脂蛋白膽固醇比值與急性心肌梗死患者介入術(shù)后慢血流或無(wú)復(fù)流的相關(guān)性分析
黃朝發(fā),李菊香,顏素娟,姜宇,游志剛,徐勁松,姜醒華,楊人強(qiáng),吳延慶,吳清華,程曉曙
目的:探討急性心肌梗死患者中單核細(xì)胞/高密度脂蛋白膽固醇比值(MHR)與冠狀動(dòng)脈介入治療(PCI)后慢血流或無(wú)復(fù)流的關(guān)系。
方法:納入我院2014-10至2016-05符合入選標(biāo)準(zhǔn)的共216例急性ST段抬高型心肌梗死(STEMI)患者,分為慢血流或無(wú)復(fù)流組[心肌梗死溶栓治療臨床試驗(yàn)(TIMI)血流≤2級(jí)] 43例和正常血流組173例。采用受試者工作特征曲線(ROC曲線)評(píng)價(jià)MHR預(yù)測(cè)慢血流或無(wú)復(fù)流發(fā)生的最佳切點(diǎn)值及其評(píng)判慢血流或無(wú)復(fù)流的特異性和敏感性,此外,運(yùn)用Logistic回歸分析MHR是否可作為STEMI患者介入后冠狀動(dòng)脈慢血流或無(wú)復(fù)流的獨(dú)立危險(xiǎn)因素。
結(jié)果:與正常血流組相比,慢血流或無(wú)復(fù)流組MHR明顯較高(18.6±9.8 vs 10.9±5.5,P<0.001),單因素Logistic回歸分析可知MHR是冠狀動(dòng)脈慢血流或無(wú)復(fù)流的危險(xiǎn)因素(OR =2.22,95%CI:1.58~3.28),同時(shí)多因素Logistic回歸分析得出:MHR是冠狀動(dòng)脈慢血流或無(wú)復(fù)流的獨(dú)立危險(xiǎn)因素(OR=1.55,95%CI:1.01~2.38);ROC曲線計(jì)算MHR預(yù)測(cè)慢血流或無(wú)復(fù)流的最佳切點(diǎn)值為13.37,敏感性和特異性分別為67.4%和70.5%,曲線下面積(AUC)為0.734 (95%CI:0.646~0.822)。
結(jié)論:MHR是急性心肌梗死患者介入后冠狀動(dòng)脈慢血流或無(wú)復(fù)流的獨(dú)立危險(xiǎn)因素。
心肌梗死;血管成形術(shù),經(jīng)皮,經(jīng)腔冠狀動(dòng)脈; 單核細(xì)胞/高密度脂蛋白膽固醇比值
Objective: To explore the correlation of monocyte to HDL-C ratio (MHR) and post-operative slow flow or no reflow in patients with ST-segment elevation myocardial infarction (STEMI) after percutaneous coronary intervention (PCI).
Methods: A total of 216 STEMI patients treated in our hospital from 2014-10 to 2016-05 were enrolled. The patients were divided into 2 groups: Slow flow or no reflow group, the patients with TIMI grade≤2, n=43 and Normal flow group, n=173. Receiver operating characteristic (ROC) curve was performed to assess the best cut-off value for MHR predicting slow flow or no reflow with its sensitivity and specificity; Logistic regression analysis was conducted to studied weather MHR could be used as an independent risk factor for coronary slow flow or no reflow in STEMI patients after PCI.
Results: Compared with Normal flow group, Slow flow or no reflow group had the higher MHR (18.6±9.8) vs (10.9±5.5), P<0.001. Univariate Regression analysis indicated that MHR was a risk factor of slow flow or no reflow occurrence (OR=2.22, 95% CI 1.58-3.28); multivariate regression analysis presented that MHR was an independent risk factor of slow flow or no reflow occurrence (OR=1.55, 95% CI 1.01-2.38). ROC curve showed that the best cut-off value for MHR predicting slow flow or no reflow occurrence was 13.37 with the sensitivity and specificity at 67.4% and 70.5% respectively, the area undercurve (AUC) was 0.734, 95% CI 0.646-0.822.
Conclusion: MHR was an independent risk factor for slow flow or no reflow occurrence in STEMI patients after PCI.Key wordsMyocardial infarction; Angioplasty, percutaneous, transluminal coronary; Monocyte to HDL-C Ratio
(Chinese Circulation Journal, 2017,32: 737.)
急性心肌梗死 (AMI) 是威脅人類生命的一類急重癥,ST段抬高型心肌梗死(STEMI)是AMI中常見(jiàn)的一種,在發(fā)病12 h內(nèi)盡早行經(jīng)皮冠狀動(dòng)脈(冠脈)介入治療(PCI)開(kāi)通梗死相關(guān)冠脈,已推薦為其首選的再灌注方法[1]。而冠脈慢血流或無(wú)復(fù)流是再灌注的一個(gè)嚴(yán)重并發(fā)癥,尤其是STEMI患者[2,3],可增加遠(yuǎn)期死亡率[4]。
慢血流或無(wú)復(fù)流現(xiàn)象主要表現(xiàn)為冠脈阻塞、冠脈痙攣或血栓栓塞而致冠脈血流急劇減少,其機(jī)制尚不十分清楚。近年來(lái)發(fā)現(xiàn),炎癥因子在冠脈慢血流或無(wú)復(fù)流中起到重要作用。一些實(shí)驗(yàn)?zāi)P桶l(fā)現(xiàn)中性粒細(xì)胞集聚、氧化應(yīng)激和血管收縮及內(nèi)皮功能障礙所導(dǎo)致的凝血級(jí)聯(lián)反應(yīng)均與慢血流或無(wú)復(fù)流相關(guān)[5]。有研究顯示單核細(xì)胞與高密度脂蛋白膽固醇比值(MHR)是預(yù)測(cè)動(dòng)脈粥樣硬化進(jìn)程中一種新興的炎癥因子[6]。在慢性腎病患者中,MHR與心血管疾病的發(fā)生具有一定的相關(guān)性[7]。此前已有研究證實(shí)中性粒細(xì)胞與淋巴細(xì)胞比值(NLR)可作為冠脈慢血流或無(wú)復(fù)流的一個(gè)獨(dú)立危險(xiǎn)因素[8],并且和STEMI患者急診PCI后院內(nèi)不良心血管事件相關(guān)[9]。在我國(guó),MHR是否可作為AMI患者介入術(shù)后冠脈慢血流或無(wú)復(fù)流的一個(gè)獨(dú)立危險(xiǎn)因素,對(duì)其是否有預(yù)測(cè)價(jià)值還不得而知。本研究旨在探討STEMI患者M(jìn)HR與PCI后冠脈慢血流或無(wú)復(fù)流的關(guān)系。
研究對(duì)象: 2014-10至2016-05就診于南昌大學(xué)第二附屬醫(yī)院的STEMI患者273例。入選標(biāo)準(zhǔn):(1)符合STEMI的診斷標(biāo)準(zhǔn),缺血性胸痛持續(xù)時(shí)間≥30 min,含服硝酸甘油無(wú)法緩解;心電圖表現(xiàn)2個(gè)相鄰導(dǎo)聯(lián)新發(fā)ST段抬高、病理性Q波形成或新出現(xiàn)的完全性左束支傳導(dǎo)阻滯;血清肌鈣蛋白升高至少超過(guò)99%參考值上限。(2)患者于癥狀出現(xiàn)后12 h內(nèi)接受急診PCI。(3) 所有患者均置入支架。排除標(biāo)準(zhǔn):24 h內(nèi)溶栓治療(3例);近期有感染性疾?。?8例);肝腎功能異常(4例);心原性休克(6例);惡性腫瘤(1例);研究資料不完整(25例)。最終納人216例。
研究方法:所有患者人院后留取靜脈血標(biāo)本,使用sysmex XN-9000全自動(dòng)血細(xì)胞分析儀進(jìn)行血常規(guī)分析,行心肌損傷標(biāo)記物、血脂和凝血功能等常規(guī)檢查。所有患者術(shù)前給予阿司匹林300 mg嚼服,替格瑞諾180 mg口服,及普通肝素70~100 U/kg靜脈注射,PCI由經(jīng)驗(yàn)豐富有冠脈介入資質(zhì)的醫(yī)生完成,嚴(yán)格按照“2010年STEMI診斷和治療指南”[2]實(shí)行。對(duì)梗死相關(guān)血管行PCI后的冠脈血流灌注進(jìn)行分級(jí),冠脈慢血流或無(wú)復(fù)流定義為PCI后冠脈無(wú)機(jī)械性阻塞,無(wú)顯著殘余狹窄或夾層,但仍然存在前向血流障礙[心肌梗死溶栓治療臨床試驗(yàn)(TIMI)血流≤2級(jí)],本實(shí)驗(yàn)根據(jù)TIMI血流患者分為慢血流或無(wú)復(fù)流組(TIMI血流≤2級(jí))和正常血流組(TIMI血流3級(jí))。MHR、NLR分別由單核細(xì)胞計(jì)數(shù)和高密度脂蛋白膽固醇濃度絕對(duì)值的比值、中性粒細(xì)胞和淋巴細(xì)胞數(shù)目絕對(duì)值的比值得出。
統(tǒng)計(jì)學(xué)方法:數(shù)據(jù)均采用 SPSS17.0 統(tǒng)計(jì)軟件進(jìn)行分析。連續(xù)型變量采用均數(shù)±標(biāo)準(zhǔn)差表示,分類變量則采用百分比表示。組間比較計(jì)量資料采用兩獨(dú)立樣本t檢驗(yàn),而計(jì)數(shù)資料則采用χ2檢驗(yàn)。此外,行單因素及多因素Logistic回歸分析,Logistic回歸模型結(jié)果采用比值比(OR)和95%可信區(qū)間(CI)來(lái)表示。OR>1.0表示為危險(xiǎn)因素,即MHR可增加慢血流或無(wú)復(fù)流發(fā)生風(fēng)險(xiǎn),而OR<1.0則說(shuō)明為保護(hù)因素,可一定程度降低慢血流或無(wú)復(fù)流發(fā)生風(fēng)險(xiǎn)。同時(shí)應(yīng)用受試者工作特征(ROC)曲線評(píng)價(jià)MHR預(yù)測(cè)慢血流或無(wú)復(fù)流發(fā)生的最佳切點(diǎn)值及其評(píng)判慢血流或無(wú)復(fù)流的特異性和敏感性。P<0.05 表示差異有統(tǒng)計(jì)學(xué)意義。
2.1 兩組患者的基線特征
216例STEMI患者中,慢血流或無(wú)復(fù)流組43例,其中男性34例,女性9例,平均年齡(63±11)歲,正常血流組173例,其中男性146例,女性27例,平均年齡(59±12)歲,兩組患者的基線特征見(jiàn)表1。與正常血流組相比,慢血流或無(wú)復(fù)流組的單核細(xì)胞計(jì)數(shù)、MHR、中性粒細(xì)胞計(jì)數(shù)、NLR、再灌注時(shí)間、血栓抽吸、TIMI血栓≥4級(jí)、使用替羅非班比例及血小板活化體積(MPV)均明顯增高(P<0.05~0.01);相反,慢血流或無(wú)復(fù)流組的淋巴細(xì)胞計(jì)數(shù)明顯低于正常血流組(P<0.001)。而兩組的性別、體重指數(shù)、既往服用藥物、病變血管數(shù)和病變部位、球囊預(yù)擴(kuò)張、球囊后擴(kuò)張、置入支架數(shù)、Killip分級(jí)≥Ⅱ級(jí)比例等及其他生化指標(biāo)差異均無(wú)統(tǒng)計(jì)學(xué)意義(P均>0.05)。
表1 兩組患者臨床基線特征比較(±s)
2.2 慢血流及無(wú)復(fù)流危險(xiǎn)因素分析
對(duì)STEMI患者介入術(shù)后慢血流或無(wú)復(fù)流Logistic回歸分析(表2),僅校正年齡的單因素分析提示性別、單核細(xì)胞、MHR、中性粒細(xì)胞、NLR、白細(xì)胞、MPV、高血壓及糖尿病病史均是慢血流或無(wú)復(fù)流的危險(xiǎn)因素,而高密度脂蛋白膽固醇和淋巴細(xì)胞則是保護(hù)性因素。在校正年齡、性別、淋巴細(xì)胞、中性粒細(xì)胞、NLR、MPV、再灌注時(shí)間、球囊預(yù)擴(kuò)張、球囊后擴(kuò)張、血栓抽吸、支架置入、術(shù)中使用替羅非班比例及既往病史后的多因素分析表明,單核細(xì)胞、MHR、淋巴細(xì)胞、中性粒細(xì)胞及NLR、糖尿病史均為慢血流或無(wú)復(fù)流的獨(dú)立危險(xiǎn)因素。
表2 影響STEMI患者介入術(shù)后慢血流或無(wú)復(fù)流的單因素和多因素Logistic回歸分析
2.3 MHR對(duì)STEMI患者介入術(shù)后慢血流或無(wú)復(fù)流的預(yù)測(cè)價(jià)值
應(yīng)用ROC曲線分析MHR對(duì)STEMI患者介入術(shù)后慢血流或無(wú)復(fù)流的預(yù)測(cè)價(jià)值(圖1),分析得出,對(duì)于慢血流或無(wú)復(fù)流患者的MHR最佳切點(diǎn)值為13.37,預(yù)測(cè)的敏感性和特異性分別為67.4%和70.5%, AUC為0.734(95%CI: 0.646~0.822)。而MHR每升高一個(gè)單位量,慢血流或無(wú)復(fù)流發(fā)生風(fēng)險(xiǎn)將增加39%。
圖1 單核細(xì)胞/高密度脂蛋白膽固醇比值預(yù)測(cè)介入術(shù)后冠狀動(dòng)脈慢血流或無(wú)復(fù)流的受試者工作特征曲線分析
對(duì)于STEMI患者盡早行冠脈介入術(shù)使阻塞或閉塞血管再通是最有效的治療方法。而冠脈慢血流或無(wú)復(fù)流現(xiàn)象則是增加STEMI患者介入術(shù)后死亡風(fēng)險(xiǎn)的一個(gè)危險(xiǎn)因素[10]。Ndrepepa等[11]的一項(xiàng)納入1 406例STEMI患者行PCI后觀察慢血流或無(wú)復(fù)流現(xiàn)象的發(fā)生情況,經(jīng)過(guò)平均5年的隨訪發(fā)現(xiàn),慢血流或無(wú)復(fù)流可作為5年遠(yuǎn)期死亡率的一個(gè)獨(dú)立危險(xiǎn)因素,其風(fēng)險(xiǎn)比高達(dá)1.66(95% CI: 1.17~2.36,P=0.004)。既往研究發(fā)現(xiàn),慢血流或無(wú)復(fù)流的發(fā)生與多種病理因素相關(guān),其中包括內(nèi)皮功能損傷、機(jī)體氧化應(yīng)激、缺血再灌注損傷、血小板聚集和微血栓形成、冠脈遠(yuǎn)端栓塞、血管舒縮功能障礙等[12-14],但慢血流或無(wú)復(fù)流發(fā)生的確切機(jī)制,目前仍不十分清楚。Celik等[15]提出介入術(shù)后冠脈遠(yuǎn)端血栓形成在慢血流或無(wú)復(fù)流的機(jī)制中扮演一個(gè)重要的角色。研究發(fā)現(xiàn)了一些高危因素,諸如冠脈高血栓負(fù)荷,右冠病變血管及女性均在一定程度上可預(yù)測(cè)STEMI患者介入術(shù)后冠脈遠(yuǎn)端血栓形成的風(fēng)險(xiǎn)[15]。新近研究表明,STEMI患者介入術(shù)后機(jī)體高炎癥反應(yīng)狀態(tài)在慢血流或無(wú)復(fù)流現(xiàn)象的發(fā)生中起著十分重要的作用[11,16]。Celik等[3]證實(shí)外周血白細(xì)胞計(jì)數(shù)可預(yù)測(cè)慢血流或無(wú)復(fù)流現(xiàn)象的發(fā)生及其遠(yuǎn)期死亡風(fēng)險(xiǎn)。Guasti等[17]研究表明中性粒細(xì)胞計(jì)數(shù)增高與急性冠脈綜合征患者的冠脈病變程度、心肌梗死面積、住院期間不良事件的發(fā)生、患者短期及長(zhǎng)期死亡率相關(guān)。我國(guó)學(xué)者He等[18]發(fā)現(xiàn)在中國(guó)人群中, NLR能夠預(yù)測(cè)STEMI患者遠(yuǎn)期院內(nèi)主要不良心血管事件(MACE)和死亡率。本研究結(jié)果示,MHR可作為STEMI患者介入術(shù)后慢血流或無(wú)復(fù)流的一個(gè)獨(dú)立危險(xiǎn)因素,即MHR每升高一個(gè)單位量,慢血流或無(wú)復(fù)流發(fā)生風(fēng)險(xiǎn)將增加39%,同時(shí)MHR也可充當(dāng)冠脈慢血流或無(wú)復(fù)流的一個(gè)預(yù)測(cè)因子。ROC曲線分析,對(duì)于慢血流或無(wú)復(fù)流患者的MHR最佳切點(diǎn)值為13.37,預(yù)測(cè)的敏感性和特異性分別為67.4%和70.5%。
MHR的檢測(cè)與特異性炎癥因子或其他標(biāo)記物不同,是臨床的常規(guī)檢查,結(jié)果相對(duì)穩(wěn)定,便于觀察。早有作者發(fā)現(xiàn)慢性腎病患者中[7], MHR與心血管疾病的發(fā)生也具有一定的相關(guān)性。而巨噬細(xì)胞和單核細(xì)胞是激活促炎因子的兩種最重要的細(xì)胞表型,在動(dòng)脈粥樣硬化的發(fā)生及發(fā)展中起著重要的作用,謂之脂質(zhì)驅(qū)動(dòng)的炎癥性疾病[19]。高密度脂蛋白膽固醇已被證明是一種有效的炎癥抑制劑,它可以通過(guò)有效的抑制巨噬細(xì)胞的遷移,同時(shí)促進(jìn)這些細(xì)胞內(nèi)低密度脂蛋白膽固醇的氧化。一定程度的增加血清高密度脂蛋白膽固醇水平可改善動(dòng)脈粥樣硬化及減少一些心血管事件發(fā)生[20]。因此推測(cè)MHR可作為冠脈不良事件發(fā)生的一個(gè)重要的預(yù)測(cè)因子。Canpolat等[6]研究證實(shí)高M(jìn)HR比值能暗示機(jī)體的炎癥反應(yīng)及氧化應(yīng)激水平升高,并且還發(fā)現(xiàn)MHR與冠脈慢血流的發(fā)生密切相關(guān)。同時(shí)發(fā)現(xiàn)MHR是心房顫動(dòng)射頻消融術(shù)后復(fù)發(fā)的一個(gè)獨(dú)立預(yù)測(cè)因子[21]。Cetin等[22]指出MHR可作為STEMI患者PCI后支架內(nèi)血栓形成的獨(dú)立預(yù)測(cè)因子。此外,?i?ek 等[23]研究發(fā)現(xiàn)MHR對(duì)于STEMI患者PCI后的短期及長(zhǎng)期死亡風(fēng)險(xiǎn)、MACE、卒中及靶血管重構(gòu)等均有一定的預(yù)測(cè)作用。
國(guó)內(nèi)目前MHR與STEMI患者介入術(shù)后冠脈慢血流或無(wú)復(fù)流的相關(guān)性研究較少,本研究仍具有一些局限性:(1)本研究的MHR比值為一次的測(cè)量值,并不能排除一些因急性冠脈事件引起的機(jī)體應(yīng)激所致的一些異常值;(2)研究中并未對(duì)其他一些特異性更強(qiáng)的炎癥因子(C反應(yīng)蛋白、白細(xì)胞介素及腫瘤壞死因子等)進(jìn)行相關(guān)探討分析;(3)本研究為小樣本、單中心分析,以后尚需更大樣本量、多中心的研究來(lái)進(jìn)一步證實(shí) MHR 在STEMI 介入術(shù)后慢血流或無(wú)復(fù)流現(xiàn)象發(fā)生中的預(yù)測(cè)價(jià)值。
結(jié)論:MHR是AMI患者介入術(shù)后冠脈慢血流或無(wú)復(fù)流的一個(gè)獨(dú)立危險(xiǎn)因素??勺鳛榕R床慢血流或無(wú)復(fù)流現(xiàn)象發(fā)生的一個(gè)重要的預(yù)測(cè)因子,因此,對(duì)與STEMI患者入院時(shí)及時(shí)進(jìn)行MHR檢測(cè),有助于鑒別出PCI后發(fā)生慢血流或無(wú)復(fù)流的高風(fēng)險(xiǎn)人群,可對(duì)此類高?;颊卟扇》e極的預(yù)防及治療策略。
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Correlation Study of Monocyte to HDL-C Ratio and Post-operative Slow flow or No reflow in Acute Myocardial Infarction Patients After Percutaneous Coronary Intervention
HUANG Chao-fa, LI Ju-xiang, YAN Su-juan, JIANG Yu, YOU Zhi-gang, XU Jin-song, JIANG Xing-hua, YANG Ren-qiang, WU Yan-qing, WU Qing-hua, CHENG Xiao-shu.
Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang (330006), Jiangxi, China
LI Ju-xiang, Email: ljx912@126.com
book=737,ebook=13
2016-07-18)
(編輯:常文靜)
江西贛鄱英才555人才計(jì)劃項(xiàng)目
330006 江西省南昌市,南昌大學(xué)第二附屬醫(yī)院 心內(nèi)科
黃朝發(fā) 主治醫(yī)師 碩士 主要從事心血管病學(xué)研究 Email:hchaofa@163.com 通訊作者: 李菊香 Email:ljx912@126.com
R54
A
1000-3614(2017)08-0737-05
10.3969/j.issn.1000-3614.2017.08.003