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      心房顫動(dòng)導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率Meta分析

      2015-12-15 09:01:29韓全樂王桂蘋劉書旺劉曉堃張琦張華王曉曉
      中國(guó)循環(huán)雜志 2015年4期
      關(guān)鍵詞:消融術(shù)腦梗塞房顫

      韓全樂,王桂蘋,劉書旺,劉曉堃,張琦,張華,王曉曉

      心房顫動(dòng)導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率Meta分析

      韓全樂,王桂蘋,劉書旺,劉曉堃,張琦,張華,王曉曉

      目的: 應(yīng)用Meta分析綜合評(píng)價(jià)心房顫動(dòng)(房顫)導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率,為房顫導(dǎo)管消融術(shù)相關(guān)無(wú)癥狀腦梗塞預(yù)防提供基礎(chǔ)資料。

      方法:系統(tǒng)檢索PubMed、Springer、Elsevier-SDOL、EMbase、SSCI、VIP、中國(guó)生物醫(yī)學(xué)文獻(xiàn)數(shù)據(jù)庫(kù)(CBM)、中國(guó)期刊全文數(shù)據(jù)庫(kù)(CNKI)、萬(wàn)方數(shù)據(jù)資源系統(tǒng)、中國(guó)優(yōu)秀碩士學(xué)位論文全文數(shù)據(jù)庫(kù)和中國(guó)重要會(huì)議論文全文數(shù)據(jù)庫(kù)中2006年~2014年發(fā)表有關(guān)房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞研究文獻(xiàn)。利用疾病患病率或發(fā)病率質(zhì)量準(zhǔn)則評(píng)價(jià)文獻(xiàn)質(zhì)量,應(yīng)用R軟件進(jìn)行Meta分析,合并房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率,采用敏感性分析評(píng)價(jià)研究對(duì)象類型和研究質(zhì)量對(duì)結(jié)果的影響。

      結(jié)果:共納入合格文獻(xiàn)16篇,總樣本量1 258人,房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率為17.46%(95%可信區(qū)間:13.13~22.8)。通過(guò)敏感性分析,刪除文獻(xiàn)質(zhì)量評(píng)價(jià)得分最低和研究對(duì)象為部分年齡段人群的文獻(xiàn)后,Meta分析的結(jié)果無(wú)明顯變化。

      結(jié)論:房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率處在一個(gè)較高水平,是房顫導(dǎo)管消融以降低栓塞事件過(guò)程中必須面對(duì)的一個(gè)嚴(yán)峻問(wèn)題,應(yīng)得到更多關(guān)注,并采取相應(yīng)的干預(yù)措施。

      心律失常;心房顫動(dòng);導(dǎo)管消融術(shù);無(wú)癥狀腦梗塞;流行病;Meta分析

      Methods: We systemically searched the publications of PubMed, Springer, Elsevier-SDOL, EMbase, SSCI, VIP, Chinese biomedical literature database (CBM), Chinese journal full-text database (CNKI), Wanfang data resource, Chinese outstanding master’s degree thesis database and Chinese important articles published in full-text database from 2006 to 2014 for the literatures regarding the asymptomatic cerebral embolism in AF patients after catheter ablation. The literature quality was evaluated by Loney criteria, Meta-analysis was conducted by R software to assess the incidence rate of asymptomatic cerebral embolism after ablation, the impact of type and quality for research were estimated by sensitivity analysis.

      Results: A total of 16 qualified literatures were enrolled in our research with 1258 patients. The incidence rate of asymptomatic cerebral embolism in AF patients after ablation was 17.46% (95% CI 13.13% - 22.84%). The sensitivity analysis indicated that excluding the literature at the lowest quality and the literature only with the part of age group, the

      Meta-analysis result had no obvious changes.

      Conclusion: The asymptomatic cerebral embolism in AF patients after ablation is at a relatively high prevalence condition, it should be seriously emphasized and with the active intervention in clinical practice.

      (Chinese Circulation Journal, 2015,30:350.)

      心房顫動(dòng)(房顫)是目前較為常見的心律失常之一,臨床上20%腦卒中由房顫引起,因其高的致死率及致殘率,引起醫(yī)學(xué)領(lǐng)域廣泛關(guān)注[1,2]。多項(xiàng)研究顯示導(dǎo)管消融術(shù)可顯著提高竇性心律的轉(zhuǎn)復(fù)及維持,降低血栓栓塞的發(fā)生風(fēng)險(xiǎn),已成為相關(guān)指南和共識(shí)首選推薦的房顫治療方案[3,4]。房顫導(dǎo)管消融術(shù)可以降低腦栓塞發(fā)生風(fēng)險(xiǎn),但這一結(jié)論主要基于臨床癥狀性腦栓塞。近年來(lái)越來(lái)越多研究[5-8]發(fā)現(xiàn),房顫導(dǎo)管消融增加無(wú)癥狀腦梗塞發(fā)生,這使得房顫導(dǎo)管消融的臨床獲益面臨質(zhì)疑。并且隨著國(guó)內(nèi)外房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞的研究和監(jiān)測(cè)日益增多,各個(gè)研究樣本量較小,彼此報(bào)道的無(wú)癥狀腦梗塞發(fā)生率差異較大。而Meta分析可以系統(tǒng)客觀的對(duì)多個(gè)相關(guān)研究結(jié)果進(jìn)行定量綜合,從而提高統(tǒng)計(jì)檢驗(yàn)效能。為此本研究采用Meta分析方法,對(duì)已發(fā)表的房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞的相關(guān)文獻(xiàn)綜合分析,揭示房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率的實(shí)際水平和嚴(yán)重程度,以期得到更多關(guān)注,從而為采取相應(yīng)的預(yù)防和干預(yù)提供基礎(chǔ)參考數(shù)據(jù)資料。

      1 資料與方法

      文獻(xiàn)檢索方法:文獻(xiàn)檢索時(shí)間范圍2006-01至2014-05發(fā)表有關(guān)房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞的研究文獻(xiàn)。檢索數(shù)據(jù)庫(kù)PubMed、Springer、Elsevier-SDOL、中國(guó)生物醫(yī)學(xué)文獻(xiàn)數(shù)據(jù)庫(kù)(CBM)、中國(guó)期刊全文數(shù)據(jù)庫(kù)(CNKI)、萬(wàn)方數(shù)據(jù)資源系統(tǒng)、中國(guó)優(yōu)秀碩士學(xué)位論文全文數(shù)據(jù)庫(kù)和中國(guó)重要會(huì)議論文全文數(shù)據(jù)庫(kù)。限定語(yǔ)種英語(yǔ)和中文。文獻(xiàn)檢索策略:“房顫導(dǎo)管消融術(shù)/房顫肺靜脈電隔離”,“無(wú)癥狀腦梗塞/無(wú)癥狀腦梗死/無(wú)癥狀腦栓塞”,“流行/發(fā)生率”及相應(yīng)英文檢索式“ablation of atrial fibrillation/ pulmonary vein isolation/radiofrequency catheter ablation/circumferential PV ablation/ pulmonary vein ablation catheter”,“silent cerebral embolism/ asymptomatic cerebral embolism / silent cerebral ischemia/. Silent brain infarcts/ Silent cerebral lesions / Asymptomatic cerebral injury”, “prevalence/incidence”為限定,進(jìn)行模糊匹配檢索。通過(guò)人工過(guò)濾檢索到的文獻(xiàn),確定涉及的相關(guān)文章,并從合格文獻(xiàn)的參考文獻(xiàn)中查找可能符合入選標(biāo)準(zhǔn)的其他文獻(xiàn)。

      文獻(xiàn)篩選:文獻(xiàn)納入標(biāo)準(zhǔn):①研究對(duì)象來(lái)自某個(gè)研究人群,研究類型為病例對(duì)照研究;②文獻(xiàn)中房顫導(dǎo)管消融相關(guān)新發(fā)無(wú)癥狀腦梗塞定義[5]:房顫行導(dǎo)管消融術(shù)患者,術(shù)前24 h及術(shù)后24 h行擴(kuò)散加權(quán)磁共振成像(DW-MRI)檢查,發(fā)現(xiàn)新發(fā)腦梗塞病灶,而患者缺乏特異性神經(jīng)系統(tǒng)癥狀及體征;③研究類型和研究方法明確并基本相似;④研究必須報(bào)告研究人群樣本量,房顫導(dǎo)管消融術(shù)后新發(fā)無(wú)癥狀腦梗塞發(fā)生率及百分比,或能用文中數(shù)據(jù)計(jì)算出所需數(shù)值。文獻(xiàn)排除標(biāo)準(zhǔn):①未按上述定義限定房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞;②數(shù)據(jù)不完整、不清晰或出現(xiàn)錯(cuò)誤;③同一研究人群重復(fù)發(fā)表、重復(fù)收錄或資料雷同的文獻(xiàn)。

      文獻(xiàn)質(zhì)量評(píng)價(jià)和控制:采用Excel軟件建立信息摘錄數(shù)據(jù)庫(kù),從合格文獻(xiàn)中摘錄題目、第一作者、發(fā)表年份、研究類型及樣本量和發(fā)生率。由于觀察性研究尚缺乏公認(rèn)的質(zhì)量評(píng)價(jià)標(biāo)準(zhǔn),本研究參考Loney等[6]提出的疾病患病率或發(fā)病率研究質(zhì)量評(píng)價(jià)準(zhǔn)則評(píng)價(jià)納入文獻(xiàn)質(zhì)量。該準(zhǔn)則從研究方法的有效性、結(jié)果的合理解釋和適用范圍3個(gè)方面設(shè)置了8條標(biāo)準(zhǔn)對(duì)文獻(xiàn)進(jìn)行評(píng)估并評(píng)分,得分范圍0~8分,即得分越高,表示文獻(xiàn)質(zhì)量越好。文獻(xiàn)檢索、文獻(xiàn)篩選、信息摘錄和文獻(xiàn)質(zhì)量評(píng)價(jià)由2名研究者獨(dú)立完成。當(dāng)對(duì)文獻(xiàn)整理過(guò)程中出現(xiàn)的疑問(wèn)或2名研究者不一致意見,通過(guò)集中討論解決。

      統(tǒng)計(jì)學(xué)處理:采用R 3.1.0軟件合并各研究報(bào)告的結(jié)果,并繪制森林圖和漏斗圖,檢驗(yàn)異質(zhì)性和評(píng)估發(fā)表偏倚。

      2 結(jié)果

      文獻(xiàn)基本情況:初檢獲得文獻(xiàn)24篇,通過(guò)參照納入標(biāo)準(zhǔn)、排除標(biāo)準(zhǔn),結(jié)合文獻(xiàn)質(zhì)量評(píng)價(jià),最終獲

      得合格的文獻(xiàn)16篇[5,7-21],全部為英文文獻(xiàn)。研究地點(diǎn)分別在意大利、美國(guó)、歐洲,均為病例對(duì)照研究。所納入文獻(xiàn)的研究時(shí)間跨度為8年(2006年~2014年),總樣本量為1 258人,單個(gè)研究樣本量均偏小,且樣本量相差較大,介于20~232人,中位數(shù)為53人。16篇均報(bào)告房顫導(dǎo)管消融術(shù)后新發(fā)無(wú)癥狀腦梗塞發(fā)生率。9篇質(zhì)量評(píng)分為8分,4篇為7分,2篇為6分,1篇為5分。表1

      表1 心房顫動(dòng)導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞Meta分析納入文獻(xiàn)基本信息

      異質(zhì)性檢驗(yàn):經(jīng)異質(zhì)性檢驗(yàn),各指標(biāo)均存在顯著異質(zhì)性(P<0.0001),故均采用隨機(jī)效應(yīng)模型對(duì)數(shù)據(jù)進(jìn)行合并分析。使用固定效應(yīng)模型合并各指標(biāo)的效應(yīng)值,所得結(jié)果和隨機(jī)效應(yīng)模型結(jié)果相似,說(shuō)明合并結(jié)果穩(wěn)定性好,基本可靠。

      效應(yīng)值的合并:16篇文獻(xiàn)加權(quán)合并后房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率為17.46%[95%可信區(qū)間(CI):13.13~22.84]。圖1

      圖1 心房顫動(dòng)導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率Meta分析森林圖

      敏感性分析:分別刪除文獻(xiàn)質(zhì)量評(píng)價(jià)得分最低(5分)的文獻(xiàn),評(píng)價(jià)文獻(xiàn)質(zhì)量對(duì)Meta分析結(jié)果的影響。刪除其中質(zhì)量評(píng)分為5分的1篇文獻(xiàn)后,房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率由17.46%升至18.38%。

      發(fā)表偏倚分析:經(jīng)計(jì)算,房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率的發(fā)表偏倚Begg檢驗(yàn)統(tǒng)計(jì)量為-1.3507,P=0.1768。并結(jié)合漏斗圖(圖略),提示本研究不存在發(fā)表偏倚。

      3 討論

      早在2004年Ren等[22]研究顯示,房顫行導(dǎo)管肺靜脈電隔離患者,術(shù)中通過(guò)心內(nèi)超聲檢查,發(fā)現(xiàn)10.3%的患者左心房出現(xiàn)血栓,常附著于鞘管和標(biāo)測(cè)電極(圖2)。2006年Lickfett等[5]研究報(bào)道,入選20例房顫患者在Lasso指導(dǎo)下行導(dǎo)管消融,DWMRI發(fā)現(xiàn)2例(10%)新發(fā)腦梗塞(圖3)。Herrera等[23]研究發(fā)現(xiàn)多電極導(dǎo)管消融可使無(wú)癥狀腦梗塞發(fā)生率高達(dá)37.5%。本研究16篇文獻(xiàn)的Meta分析顯示,近8年來(lái)房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞的發(fā)生率為:17.46%(95%CI:13.13~22.84)(圖1)。與Gui-jian等[21]研究不同消融導(dǎo)管技術(shù)得出無(wú)癥狀腦梗塞的發(fā)生率15.9% (95% CI: 0.124~0.202)相近。但對(duì)于房顫導(dǎo)管消融術(shù)后癥狀性卒中和短暫性腦缺血發(fā)作(TIA)0.94%的發(fā)生率[3]來(lái)說(shuō),這無(wú)疑是相當(dāng)高的水平。而無(wú)癥狀腦梗塞將會(huì)加重癡呆、記憶缺失、神經(jīng)元損傷。上述研究術(shù)中均監(jiān)測(cè)激活全血凝固時(shí)間(ACT),調(diào)整抗凝藥物。即便如此,無(wú)癥狀腦梗塞發(fā)生率仍處在較高水平。部分患者需要行多次導(dǎo)管消融。提示我們每一位房顫導(dǎo)管消融工作者必須嚴(yán)肅面對(duì)房顫導(dǎo)管消融相關(guān)血栓栓塞問(wèn)題,是亟待解決的問(wèn)題。

      本研究納入文獻(xiàn)報(bào)告房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞發(fā)生率存在較大差異,這與實(shí)驗(yàn)研究的手術(shù)策略(包括手術(shù)方式及消融導(dǎo)管的選擇)有關(guān)。Herrera等[23]研究發(fā)現(xiàn)冷鹽水灌注球囊、冷凍球囊、多電極導(dǎo)管消融可使無(wú)癥狀腦梗塞發(fā)生率分別為7.4%、4.3%

      和37.5%。Gui-jian 等[21]研究激光球囊、新冷鹽水灌注多極導(dǎo)管消融可使無(wú)癥狀腦梗塞發(fā)生率分別為17.3%、32.6%。手術(shù)方式從肺靜脈口點(diǎn)消融、節(jié)段性消融、環(huán)肺靜脈電隔離、碎裂心房電位消融到心房迷走神經(jīng)節(jié)消融,以及外科改良Cox迷宮術(shù)等應(yīng)用。環(huán)肺靜脈消融術(shù)后無(wú)癥狀性腦微栓塞的發(fā)生率較高11.3%[17]。另外,術(shù)中ACT亦對(duì)血栓形成有影響。Ren等[22]研究發(fā)現(xiàn),當(dāng)ACT>300 ms時(shí),導(dǎo)管再次進(jìn)入左心房操作和消融時(shí)未再發(fā)現(xiàn)血栓。Gautam等[25]研究發(fā)現(xiàn),當(dāng)ACT>350 ms時(shí),術(shù)中術(shù)后無(wú)血栓栓塞事件發(fā)生。

      Haeusler等[20]研究發(fā)現(xiàn)不同敏感度DW-MRI檢查,比如3T場(chǎng)強(qiáng)DW-MRI可發(fā)現(xiàn)41%導(dǎo)管消融術(shù)后新發(fā)腦梗塞。Gaita等[7]研究發(fā)現(xiàn)術(shù)中藥物或電轉(zhuǎn)復(fù)竇性心律是無(wú)癥狀腦梗塞獨(dú)立危險(xiǎn)因素。Di Biase等[26]研究,房顫導(dǎo)管消融患者,通過(guò)計(jì)算機(jī)斷層攝影術(shù)或磁共振成像將左心耳分為4種形態(tài),發(fā)現(xiàn)其中雞翅狀左心耳具有較低發(fā)生栓塞事件風(fēng)險(xiǎn)[比值比(OR):0.2,95%CI:0.04~0.8],而菜花狀左心耳有較高發(fā)生栓塞事件風(fēng)險(xiǎn)(OR:2.0,95%CI:0.2~7.2)。

      房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞可能發(fā)生機(jī)制包括: ①鞘內(nèi)血栓、操作過(guò)程中氣栓;導(dǎo)管插入心腔也可引起凝血酶原Ⅲ水平增加,誘發(fā)血栓栓塞形成;②導(dǎo)管消融引起組織的內(nèi)皮損傷,電學(xué)透壁損傷,局部對(duì)流加熱進(jìn)一步激活血小板和凝血酶原;消融過(guò)程中微氣泡形成(圖4);③房顫電轉(zhuǎn)復(fù)竇性心律過(guò)程中機(jī)械損傷,及恢復(fù)心房正常收縮后,可引起左心房血栓脫落誘發(fā)腦栓塞;④不同術(shù)式、消融能量、消融導(dǎo)管類型亦對(duì)腦梗塞結(jié)果有影響。

      圖2 心房顫動(dòng)導(dǎo)管消融過(guò)程中附壁于電極和導(dǎo)管的左心房血栓

      圖3 心房顫動(dòng)導(dǎo)管消融術(shù)前、術(shù)后頭顱擴(kuò)散加權(quán)磁共振成像檢查對(duì)比發(fā)現(xiàn)新發(fā)腦梗塞

      圖4 心房顫動(dòng)導(dǎo)管消融過(guò)程中左心房?jī)?nèi)可見微氣泡形成

      Meta分析表明:房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞是我們必須重視的。其預(yù)防策略的總體原則:有效抗凝(根據(jù)ACT結(jié)果調(diào)整術(shù)中抗凝藥物用量)治療應(yīng)該貫穿于術(shù)前、術(shù)中和術(shù)后。選擇合適導(dǎo)管、合適術(shù)式、在合適時(shí)間內(nèi)完成手術(shù)。具體如下:①術(shù)前準(zhǔn)備要充分:a) 所有患者術(shù)前1~2天(不要提前超過(guò)3天)做經(jīng)食管超聲心動(dòng)圖檢查以排除心房及左心耳血栓;b) 完善CHADS2評(píng)分,全面評(píng)估栓塞風(fēng)險(xiǎn);c)房顫圍手術(shù)期繼續(xù)應(yīng)用華法林。②術(shù)中要輕柔操作,有效抗凝:a) 房間隔穿刺和肺靜脈造影時(shí)應(yīng)注意避免血栓、氣栓形成,充分回抽;b) 要充分肝素化,根據(jù)ACT決定術(shù)中肝素的應(yīng)用;c) 術(shù)中消融導(dǎo)管或標(biāo)測(cè)電極撤出鞘管時(shí)應(yīng)注意從鞘管外側(cè)閥門抽吸血液要充分,并注意觀察抽吸液內(nèi)有無(wú)血栓;d) 任何一種抗凝方案均不能減少碳化物的形成。射頻消融時(shí)能量等參數(shù)的選擇也尤為重要。③術(shù)后應(yīng)用低分子肝素及華法林橋接治療,隨訪國(guó)際標(biāo)準(zhǔn)化比值(INR),直至達(dá)標(biāo)。術(shù)后是否繼續(xù)堅(jiān)持服用華法林目前尚存在爭(zhēng)議。一般如無(wú)復(fù)發(fā),應(yīng)用華法林至術(shù)后2~3個(gè)月。

      雖然腦梗塞是無(wú)臨床癥狀的,但是這些累積性效應(yīng),可能會(huì)成為腦血管事件的一個(gè)沉重負(fù)擔(dān)。導(dǎo)致癡呆、記憶缺失的增加和認(rèn)知功能減低,使發(fā)生癥狀性腦梗塞的可能性大大增加,或使其發(fā)生癥狀性腦梗塞的病情加重,并增加腦梗塞復(fù)發(fā)的危險(xiǎn)。

      總之,我們應(yīng)重視房顫導(dǎo)管消融相關(guān)無(wú)癥狀腦梗塞的預(yù)防、診斷與治療,目前抗凝策略不能完全有效預(yù)防腦梗塞,特別是無(wú)癥狀腦梗塞。應(yīng)開展大規(guī)模臨床研究,細(xì)化房顫消融方法、調(diào)整抗凝策略。

      不斷提高房顫導(dǎo)管消融成功率[28]、減低栓塞風(fēng)險(xiǎn)[29]、增加臨床獲益。

      [1] Benjamin EJ, Wolf PA, D’Agostino RB, et al. Impact of atrial fibrillation on the risk of death: The Framingham Heart Study. Circulation, 1998, 98: 946-952.

      [2] Scardi S, Mazzone C. Impact of chronic atrial fibrillation on cardiovacular mortality. Ital Heart J Suppl, 2000, 1: 1117-1122.

      [3] Cappato R, Calkins H, Chen SA, et al. Updated worldwide survey on the methods, efficacy, and safety of catheter ablation for human atrial fibrillation. Circ Arrhythmia Electrophysiol, 2010, 3: 32-38.

      [4] Lickfett L, Hackenbroch M, Lewalter T, et al. Cerebral diffusionweighted magnetic resonance imaging: a tool to monitor the thrombogenicityof left atrial catheter ablation. J Cardiovasc Electrophysiol, 2006, 17: 1-7.

      [5] Wokhlu A, Monahan KH, Hodge DO, et al. Long-term quality of life after ablation of atrial fibrillation the impact of recurrence, symptom relief, and placebo effect. Am Coll Cardiol, 2010, 55: 2308-2316.

      [6] Loney PL, Chambers LW, Bennett KJ, et al. Critical appraisal of the health research literature: prevalence or incidence of a health problem. Chronic Dis Can, 1998, 19: 170-176.

      [7] Gaita F, Caponi D, Pianelli M, et al. Radiofrequency catheter ablation of atrial ibrillation: a cause of silent thromboembolism? Magnetic resonance imaging assessment of cerebral thromboembolism in patients undergoing ablation of atrial fibrillation. Circulation, 2010, 122: 1667-1673.

      [8] Scaglione M, Blandino A, Raimondo C, et al. Impact of ablation catheter irrigation design on silent cerebral embolism after radiofrequency catheter ablation of atrial fibrillation: Results from a pilot study. J Cardiovasc Electrophysiol, 2012, 23: 801-805.

      [9] Deneke T, Shin DI, Balta O, et al. Postablation asymptomatic cerebral lesions: long-term follow-up using magnetic resonance imaging. Heart Rhythm, 2011, 8: 1705-1711.

      [10] Wieczorek M, Lukat M, Hoeltgen R, et al. Investigation into Causes of Abnormal Cerebral MRI Findings Following PVAC Duty-Cycled, Phased RF Ablation of Atrial Fibrillation. J Cardiovasc Electrophysiol, 2013, 24: 121-128.

      [11] Rillig A, Meyerfeldt U, Tilz RR, et al. Incidence and long-term followup of silent cerebral lesions after pulmonary vein isolation using a remote robotic navigation system as compared with manual ablation. Circ Arrhythm Electrophysiol, 2012, 5: 15-21.

      [12] Gaita F, Leclercq JF, Schumacher B, et al. Incidence of silent cerebral thromboembolic lesions after atrial fibrillation ablation may change according to technology used: comparison of irrigated radiofrequency, multipolar nonirrigated catheter and cryoballoon. J Cardiovasc Electrophysiol, 2011, 22: 961-968.

      [13] Herrera Siklódy C, Deneke T, Hocini M, et al. Incidence of asymptomatic in tracranial embolic events after pulmonary vein isolation: comparison of different atrial fibrillation ablation technologies in a multicenter study. J Am Coll Cardiol, 2011, 58: 681-688.

      [14] Schwarz N, Kuniss M, Nedelmann M, et al. Neuropsychological decline after catheter ablation of atrial fibrillation. Heart Rhythm, 2010, 7: 1761-1767.

      [15] Wissner E, Metzner A, Neuzil P, et al. Asymptomatic brain lesions following laserballoon-based pulmonary vein isolation. Europace, 2014, 16: 214-219.

      [16] Verma A, Debruyne P, Nardi S, et al. Evaluation and reduction of asymptomatic cerebral embolism in ablation of atrial fibrillation, but high prevalence of chronic silent infarction: results of the evaluation of reduction of asymptomatic cerebral embolism trial. Circ Arrhythm Electrophysiol, 2013, 6: 835-842.

      [17] Schrickel JW, Lickfett L, Lewalter T, et al. Incidence and predictors of silent cerebral embolism during pulmonary vein catheter ablation for atrial fibrillation. Europace, 2010, 12: 52-57.

      [18] Martinek M, Sigmund E, Lemes C, et al. Asymptomatic cerebral lesions during pulmonary vein isolation under uninterrupted oral anticoagulation. Europace, 2013, 15: 325-331.

      [19] Deneke T, Schade A, Müller P, et al. Acute safety and efficacy of a novel multipolar irrigated radiofrequency ablation catheter for pulmonary vein isolation. J Cardiovasc Electrophysiol, 2014, 25: 339-345.

      [20] Haeusler KG, Koch L, Herm J, et al. 3 Tesla MRI-detected brain lesions after pulmonary vein isolation for atrial fibrillation: results of the MACPAF study. J Cardiovasc Electrophysiol, 2013, 24: 14-21.

      [21] Gui-jian L, Wen-qing Z, Xing-gang W, et al. Association between Ablation Technology and Asymptomatic Cerebral Injury Following Atrial Fibrillation Ablation. Pacing Clin Electrophysiol, 2014, 37: 1378-1391.

      [22] Ren JF, Marchlinski FE, Callans DJ, et al. Increased intensity of anticoagulation may reduce risk of thrombus during atrial fibrillation ablation procedures in patients with spontaneous echo contrast. J Cardiovasc Electrophysiol, 2005, 16: 474-477.

      [23] Herrera Siklódy C, Deneke T, Hocini M, et al. Incidence of asymptomatic intracranial embolic events after pulmonary vein isolation: comparison of different atrial fibrillation ablation technologies in a multicenter study. Am Coll Cardiol, 2011, 58: 681-688.

      [24] Ren JF, Marchlinski FE, Callans DJ, et al. Increased Intensity of anticoagulation may reduce risk of thrombus during atrial fibrillation ablation procedures in patients with Spontaneouse cho contrast. J Cardiovasc Electrophysil, 2005, 16: 474-477.

      [25] Gautam S, John RM, Stevenson WG, et al. Effect of therapeutic INR on activated clotting times, heparin dosage, and bleeding risk during ablation of atrial fibrillation. J Cardiovasc Electrophysiol, 2011, 22: 248-254.

      [26] Di Biase L, Santangeli P, Anselmino M, et al. Does the left atrial appendage morphology correlate with The risk of stroke in patients with atrial fibrillation? Results from a multicenter study. Am Coll Cardiol, 2012, 60: 531-538.

      [27] Marrouche NF, Martin DO, Wazni O, et al. Phased-array intracardiac echocardiography monitoring during pulmonary vein isolation inpatients with atrial fibrillation: impact on outcome and complications. Circulation, 2003, 107: 2710-2716.

      [28] 吳鋼, 顧永偉, 程冕, 等. 血漿轉(zhuǎn)化生長(zhǎng)因子β1水平與心房顫動(dòng)導(dǎo)管消融后復(fù)發(fā)的關(guān)系研究. 中國(guó)循環(huán)雜志, 2013, 28: 40-43.

      [29] 李國(guó)草, 趙威瑾, 夏云龍, 等. 接受導(dǎo)管消融的心房顫動(dòng)患者遠(yuǎn)期血栓栓塞的發(fā)生率分析. 中國(guó)循環(huán)雜志, 2014, 29: 525-528.

      Meta-analysis for the Incidence Rate of Asymptomatic Cerebral Embolism in Patients With Atrial Fibrillation After Catheter Ablation

      HAN Quan-le, WANG Gui-ping, LIU Shu-wang, LIU Xiao-kun, ZHANG Qi, ZHANG Hua, WANG Xiao-xiao.
      Department of Cardiology, Hebei Medical University Affiliated Tangshan workers Hospital, Tangshan (063000), Hebei, China

      Objective: To generally assess the incidence rate of asymptomatic cerebral embolism in patients with atrial fibrillation (AF) after catheter ablation by Meta-analysis in order to provide the basic information for cerebral embolism prevention.

      Arrhythmia; Atrial fibrillation; Catheter Ablation; Asymptomatic cerebral embolism; Epidemic; Meta analysis

      2014-07-09)

      (編輯:漆利萍)

      063000 河北省唐山市,河北醫(yī)科大學(xué)附屬唐山工人醫(yī)院 心內(nèi)科(韓全樂、王桂蘋、劉曉堃、張琦);北京大學(xué)醫(yī)學(xué)部附屬第三醫(yī)院 心內(nèi)科(劉書旺),流行病學(xué)研究中心(張華、王曉曉)

      韓全樂 主治醫(yī)師 博士研究生 研究方向:冠心病、高血壓病、心律失常診斷與治療 Email: hanquanle@126.com

      劉曉堃 Email: Lxiaokun@tom.com

      R541

      A

      1000-3614(2015)04-0350-05

      10.3969/j.issn.1000-3614.2015.04.012

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