Carto系统指导下环肺静脉线性消融治疗心房颤动

目的:观察Carto系统指导下环肺静脉线性消融治疗心房颤动的临床疗效.方法:28例心房颤动(阵发性23例,持续性5例)患者行射频消融治疗.Carto系统指导下构建左心房电解剖图,行双侧环肺静脉线性消融,环状标测电极验证肺静脉达到电隔离效果.若术中心房颤动不终止,则继续消融左房顶部线、二尖瓣峡部线或三尖瓣峡部线.如心房颤动仍未终止,遂行同步直流电复律恢复至窦性心律.结果:28例患者均成功完成手术,其中18例只需完成双侧环肺静脉线性消融,10例需要继续行左房顶部线、二尖瓣峡部线或三尖瓣峡部线的消融.随访3～29个月,2例复发房颤,2例复发房性心动过速,所有患者的手术成功率为86%.结论:Carto系统指导下环肺静脉线性消融治疗心房颤动短至中期随访效果确切,具有较高成功率.     

不同类型心房颤动导管消融治疗的对比研究

目的探讨三维标测系统指导下对阵发性、持续性和长程持久性心房颤动(房颤)行导管消融治疗的有效性和安全性。方法选择2008年1月—2010年12月在我院行导管消融治疗的持续性及长程持久性房颤患者55例为组1,选取同期住院的阵发性房颤患者55例为组2。在CARTO或ENSITE 3000系统标测下行射频消融治疗,术中采用CARTO-Merge或Ensite Fusion图像融合技术,持续性和长程持久性房颤采用步进式消融策略,在进行环肺静脉电隔离的基础上,进一步行复杂心房碎裂电位(CFAE)或高频电位消融、对规律的房性心动过速或心房扑动(房扑)进行标测和消融,主要是线性消融,包括左房顶部线、二尖瓣环峡部线、左房间隔线和(或)三尖瓣环峡部线等其中之一或不同组合,消融至实现窦性心律,对于呈持续性房扑者经静脉推注伊布利特或直流电转复窦性心律;阵发性房颤仅行环肺静脉电隔离术。所有患者术后继续服用华法林抗凝,停服抗心律失常药物,采用门诊随访,于术后3个月、6个月随访采用动态心电图监测评价心律失常情况,术后6个月复查超声心动图评价左房直径。结果 (1)组1中17例(30.9%)消融过程中直接转复窦性心律;29例(52.7%)消融过程中房颤转变为房扑,经三维激动标测及拖带标测证实其中22例(22/29)为左房大折返房扑,余7例(7/29)为右房三尖瓣峡部依赖的典型房扑,左房房扑经静脉推注心律平或胺碘酮或伊布利特转复5例,直流电转复窦性心律15例,快速起搏拖带转复2例,7例右房房扑行三尖瓣峡部线性消融均转复窦性心律;9例(16.4%)至消融结束仍为房颤律经直流电复律。组2中18例术中发生房颤,其中13例完成环肺静脉消融后恢复窦性心律,2例采用高频刺激转复窦性心律,3例静脉推注心律平转复。(2)组1术后3个月内随访发生房性心动过速29例,不典型房扑9例,房颤13例;术后6个月房颤复发19例,一次消融成功率为65.5%。3个月内组2发生房性心动过速16例,不典型房扑8例,房颤8例;术后6个月时房颤复发7例,一次消融成功率为87.3%。两组一次消融成功率比较差异有统计学意义(P<0.01)。结论对持续性和长程持久性房颤行三维标测系统指导下射频导管消融治疗较为安全,但与阵发性房颤比较,手术时间和X线曝光时间较长,消融步骤较复杂,一次消融成功率较阵发性房颤低;消融术后发生大折返房速或不典型房扑较为常见,部分可在术后3个月减少或消失,往往需再次导管消融治疗。持续性房颤和慢性房颤射频消融治疗转复窦性心律后,左房容积减小,提示有利于心房重构的减轻或逆转。     

arto系统指导下环肺静脉线性消融治疗心房颤动

目的：观察Cano系统指导下环肺静脉线性消融治疗心房颤动的临床疗效。方法：28例心房颤动（阵发性23例,持续性5例）患者行射频消融治疗。Carto系统指导下构建左心房电解剖图．行双侧环肺静脉线性消融．环状标测电极验证肺静脉达到电隔离效果。若术中心房颤动不终止,则继续消融左房顶部线、二尖瓣峡部线或三尖瓣峡部线,如心房颤动仍未终止,遂行同步直流电复律恢复至窦性心律。结果：28例患者均成功完成手术．其中18例只需完成双侧环肺静脉线性消融,10例需要继续行左房顶部线、二尖瓣峡部线或三尖瓣峡部线的消融。随访3-29个月,2例复发房颤,2例复发房性心动过速,所有患者的手术成功率为86％。结论：Carto系统指导下环肺静脉线性消融治疗心房颤动短至中期随访效果确切．具有较高成功率。     

联合Carto三维标测系统和单根Lasso电极指导心房颤动环肺静脉左房线性导管射频消融

目的评价Carto三维标测系统联合单根Lasso电极指导心房颤动(简称房颤)导管射频消融的效果。方法4例阵发性房颤患者,其中1例伴阵发性房扑,3例男性、1例女性,年龄(52±10)岁,房颤发作期限(3.3±1.8)年。术前心脏CT成像,术中运用Carto系统重建左房三维结构,并指导导管标测和消融;以冷肝素盐水灌注导管,行环肺静脉消融和左房顶部的线性消融术,消融完毕后,如患者仍显示为房颤,遂给予心律平70mg静脉注射,未见房颤复律,再给予100J行同步电复律。术后随访观察。结果4例均消融成功,平均消融导管射频消融(43±6)min,曝光时间为(48±7)min,未发生心脏穿孔和肺静脉狭窄等严重并发症,随访4~12个月无复发病例。结论联合应用Carto三维标测系统和单根Lasso电极指导进行房颤导管射频消融安全有效,使用单根Lasso电极较使用双根Lasso电极可以显著降低消融成本。     

三维立体标测指导下环肺静脉线性消融隔离肺静脉治疗房颤

目的：在三维立体标测系统（Carto—Merge）指导下进行环肺静脉线性消融隔离治疗房颤。方法：5例房颤患者（阵发性4例，持续性1例），术前行64排CT检查，重建出的左心房及肺静脉三维图像，在Carto—Merge指导下与患者的心脏解剖结构精确融合，在三维融合图上环肺静脉口周消融，实现肺静脉与左房电隔离。结果：5例患者全部完成预定线性消融，随访3个月4例无房颤发作，1例患者（持续性房颤）术后服用胺碘酮偶有阵发性房颠发作，3个月后无房早及房颤发作；1例患者发生心包填塞并发症；所有患者均无血栓及肺静脉狭窄并发症。结论：三维立体标测系统（Carto—Merge）指导下进行环肺静脉线性消融隔离治疗房颤安全有效。     

Carto系统指导下射频消融治疗房颤的临床观察

目的:研究心房颤动射频消融术中Carto技术的疗效与安全性.方法:25例心房颤动患者(阵发性19例,持续性6例)在Carto 系统指导下行双侧环肺静脉消融术.术中房颤终止或术中房颤转化为房扑或房性心动过速为消融成功的标准.结果:25例患者即刻消融成功,无一例出现严重的并发症.随访半年,3例复发房颤,手术成功率为88%.结论:Carto技术在房颤射频消融术中效果确切,安全性高.     

导管射频消融治疗房颤40例临床分析

目的：探讨导管射频消融治疗房颤的疗效、安全性及复发的相关因素．方法：40例房颤患者,阵发性房颤35例,慢性房颤5例．3例行节段性肺静脉电隔离术,16例行Carto三维标测系统指导下的环肺静脉消融及（或）左房、右房线性消融,21例采用EnSite三维标测系统指导下的“7或O”型左房线性消融和（或）右房峡部消融．总结房颤消融的成功率和复发率、并发症发生情况．结果：射频消融的即刻成功率100％,3mo后判断手术成功率,所有患者一次手术成功率87．5％（35／40）,5例再发房扑或房速的患者中4例再次行射频消融术,两次术后仍有3例复发房扑,两次手术成功率90％（36／40）,3例两次术后再发房扑的患者中仅1例患者行第三次射频消融术．阵发性房颤一次手术成功率97．1％（34／35）,并发症发生率2．5％（1／40）,无严重并发症发生．术后复发者均为大折返房扑或房速,复发与患者发病时间长、持续性房颤、左心房大、患者年龄大、合并高血压病等有关．结论：房颤射频消融治疗房颤效果较好且安全．     

CARTO标测指导大折返性房性心动过速导管消融的临床疗效分析

目的 探讨三维标测系统指导下大折返性房性心动过速(macroreentry atrial tachycardia,MAT)电生理特征和消融效果.方法 2009年8月至2011年9月本科电生理检查确诊的MAT共计38例,年龄(48.4±10.8)岁,男性17例,女性21例,38例中15例为持续性或无休止性心动过速.合并右房明显扩大12例.常规电生理检查初步确定房速的起源心腔,在CARTO三维标测系统指导下行三维电激动和／或电压标测,确定MAT关键峡部及其基质,用冷盐水灌注导管行相应的线性消融或局灶性消融.结果 ①右房MAT共31例,27例无外科手术及消融术病史,54.8％( 17/31)为单个折返环MAT,45.2％( 14/31)合并其他类型心动过速.31例MAT均行三尖瓣峡部消融,30例消融峡部房扑终止.16例单纯消融峡部达到消融终点,另14例则同时行其他部位消融.②7例左房MAT均为导管消融术后患者,其中4例在原有的消融线上存在传导裂隙(GAP),3例为二尖瓣峡部依赖性房扑.6例消融成功.③本组消融成功率为94.7％ (36/38).随访时间2～36(18.6±4.5)个月,7例复发[复发率19.4％ (7/36)],5例再次消融成功,随访期间89.5％ (34/38)的患者无房速发作.结论 右房MAT常与三尖瓣峡部和自发性瘢痕有关,而左房MAT多与手术损伤有关,三维标测有助于提高复杂心律失常的消融成功率.     

电解剖标测系统加单环状电极导管指导环肺静脉前庭线性消融电隔离肺静脉治疗心房颤动

目的 探讨电解剖标测系统(CARTO)加单Lasso导管指导下行环肺静脉前庭线性消融电隔离肺静脉治疗心房颤动(房颤)的初步经验. 方法 3例房颤患者接受治疗,其中阵发性房颤2例,持续性房颤1例.所有患者首先用CARTO系统进行左房重建,然后将一根Lasso导管置入肺静脉内,在肺静脉口外5～10 mm处行环肺静脉前庭线性消融,消融终点为双侧肺静脉完全电隔离. 结果 3例患者均成功达到消融终点,手术时间(205±46)min,X线透视时间(46±13)min.手术过程中无并发症发生.术后随访7个月,3例患者均未再发房颤,均无出现肺静脉狭窄. 结论 在CARTO加单Lasso导管指导下行环肺静脉前庭线性消融电隔离肺静脉治疗房颤安全有效.     

典型心房扑动合并阵发性心房颤动射频消融治疗方法选择

目的对比观察单纯右房峡部消融,单纯肺静脉节段性电隔离以及联合应用两种消融方法对典型心房扑动(房扑)合并阵发性心房颤动(房颤)的临床疗效。方法典型房扑合并阵发性房颤患者66例,行单纯右房峡部消融30例(A组),行单纯肺静脉节段性电隔离17例(B组)及二种消融方法联合治疗19例(C组)。术后临床随访平均30.5周±10.4周,观察心律失常复发率及手术的并发症。结果房扑复发率在术后12周A组(13.3%)和C组(10.5%)明显低于B组(52.9%)(均P<0.05),A组与C组间差异无统计学意义(P>0.05);术后36周3种消融方法间(A、B、C组分别为10%、11.8%、10.5%)差异无统计学意义(均P>0.05)。房颤复发率在术后12周至36周B组(分别为29.4%和23.5%)和C组(分别为31.6%和26.3%)均明显低于A组(分别为46.7%和73.3%)(均P<0.05),而B组与C组间差异无统计学意义(P>0.05)。结论典型房扑合并阵发性房颤单纯行右房峡部消融对房扑效果好,而房颤复发率较高;单纯行肺静脉节段性电隔离在房颤得到根治的同时,房扑亦得到良好的控制;肺静脉节段性电隔离同时行右房峡部消融,仅减少早期房扑复发,长期随访观察未显示其优势。     

Recurrent atrial tachycardia and atrial fribrillation after circumferential pulmonary vein ablation: What's the difference?

Background Recurrent atrial tachyarrhythmia (ATa) after circumferential pulmonary vein ablation (CPVA) includes atrial tachycardia (AT) and atrial fribrillation (AF). However, whether there are some differences in clinical course and mechanisms between the recurrent AT and the recurrent AF remained unclear. This study was conducted to investigate the incidence, mechanism, clinical course of the recurrent AT and AF in patients under CPVA.Methods One hundred and thirty consecutive patients (M/F=95/35) with highly symptomatic and multiple antiarrhythmic drugs (AADs) refractory paroxysmal (n=91) or persistent (n=39) AF were included. The ablation protocol consisted solely of two continuous circular lesions around the ipsilateral pulmonary veins (PV) guided by CARTO system. The endpoint of CPVA is PV isolation. For patients with recurrent ATa within 2 months after the initial procedure, cardioversion with direct current was attempted if the ATa lasted for more than 24 hours. A repeat ablation procedure was performed only for patients with AADs refractory recurrent ATa and at least followed up for 2 months after the initial procedure.Results Within 2 months after the initial procedure, 52 patients (40.0%) had experienced episodes of symptomatic recurrent ATa. Among them, 23 patients (44.2%) with recurred AT alone (AT group), 14 patients (26.9%) with recurred AF alone (AF group), and 15 patients (28.8%) with recurred AT and AF (AT plus AF group). The delayed cure rate (65.2%) in AT group was significant higher than that in AF group (21.4%, P<0.05) and AF plus AT group (26.7%, P<0.05). A repeat ablation was performed in 21 patients, including 6 patients with recurrent AT alone, 8 patients with recurrent AF alone, and 7 patients with recurrent AF plus AT. The mean number of PV gaps was 1.2±0.4 in AT group, which was significantly lower than that in AF group (2.6±0.7, P<0.05) and AF plus AT group (2.0±0.6, P<0.05). Delayed cure rate and number of PV gaps between AF group and AF plus AT group were comparable (P>0.05).Conclusions Present study indicates that recurrent AT and AF after CPVA have the different clinical course and different electrophysiological findings during repeat procedure as follows: ⑴After CPVA, spontaneous resolution of recurrent ATa was mainly found in patients with recurrent AT alone (about two thirds patients). ⑵The type of recurrent ATa after CPVA is associated with the number of PV gaps.     

房颤患者环肺静脉电隔离术后快速性房性心律失常的再消融治疗效果分析

目的:观察心房颤动患者环肺静脉电隔离术(CPVI)后快速性房性心律失常(ATa)的再消融治疗效果,并探讨其可能的发生机制。方法:64例阵发性房颤患者在初次行CPVI后(3.7±2.4)个月再次行电解剖标测系统指导下ATa标测和消融。结果:共标测到78种ATa,其中48种(61.5%)为局灶性机制,30种(38.5%)折返机制。在折返机制中,12例为普通房扑,18例为左房内折返,其折返环与二尖瓣峡部、左房前壁及原环肺静脉消融线上的传导间隙有关。2例患者因ATa不稳定而无法标测。64例患者中,56例(87.5%)消融即刻成功,8例需要电复律成窦性心律。术后随访13~21个月,平均(16.5±2.9)个月,60例(93.8%)患者不再发生ATa。结论:CPVI术后ATa的机制可为折返性和局灶性,可通过CARTO系统激动顺序标测成功消融治疗。     

Recurrent atrial tachycardia and atrial fribrillation after circumferential pulmonary vein ablation: What’s the difference?

Background Recurrent atrial tachyarrhythmia (ATa) after circumferential pulmonary vein ablation (CPVA) includes atrial tachycardia (AT) and atrial fribrillation (AF). However, whether there are some differences in clinical course and mechanisms between the recurrent AT and the recurrent AF remained unclear. This study was conducted to investigate the incidence, mechanism, clinical course of the recurrent AT and AF in patients under CPVA.Methods One hundred and thirty consecutive patients (M/F=95/35) with highly symptomatic and multiple antiarrhythmic drugs (AADs) refractory paroxysmal (n=91) or persistent (n=39) AF were included. The ablation protocol consisted solely of two continuous circular lesions around the ipsilateral pulmonary veins (PV) guided by CARTO system. The endpoint of CPVA is PV isolation. For patients with recurrent ATa within 2 months after the initial procedure, cardioversion with direct current was attempted if the ATa lasted for more than 24 hours. A repeat ablation procedure was performed only for patients with AADs refractory recurrent ATa and at least followed up for 2 months after the initial procedure.Results Within 2 months after the initial procedure, 52 patients (40.0%) had experienced episodes of symptomatic recurrent ATa. Among them, 23 patients (44.2%) with recurred AT alone (AT group), 14 patients (26.9%) with recurred AF alone (AF group), and 15 patients (28.8%) with recurred AT and AF (AT plus AF group). The delayed cure rate (65.2％) in AT group was significant higher than that in AF group (21.4％, P&lt;0.05) and AF plus AT group (26.7%, P&lt;0.05). A repeat ablation was performed in 21 patients, including 6 patients with recurrent AT alone, 8 patients with recurrent AF alone, and 7 patients with recurrent AF plus AT. The mean number of PV gaps was 1.2±0.4 in AT group, which was significantly lower than that in AF group (2.6±0.7, P&lt;0.05) and AF plus AT group (2.0±0.6, P&lt;0.05). Delayed cure rate and number of PV gaps between AF group and AF plus AT group were comparable (P&gt;0.05).Conclusions Present study indicates that recurrent AT and AF after CPVA have the different clinical course and different electrophysiological findings during repeat procedure as follows: ⑴After CPVA, spontaneous resolution of recurrent ATa was mainly found in patients with recurrent AT alone (about two thirds patients). ⑵The type of recurrent ATa after CPVA is associated with the number of PV gaps. Chin Med J 2005; 118(21):1773-1778     

导管射频消融术对房颤患者左心房结构的影响

目的评价导管射频消融术对心房颤动(AF,房颤)患者左心房结构的影响。方法 43例房颤患者接受治疗,其中阵发性房颤32例,持续性房颤11例。8例行肺静脉电隔离术,35例行Carto指导下环肺静脉前庭隔离术,消融终点均为双侧肺静脉完全电隔离。应用超声心动图测定其消融术前1~3 d和术后1、3个月静息时窦性心律下左心房内径,分析消融术前、后左心房结构的变化。结果 43例房颤患者均成功施行环肺静脉左房线性消融术,随访时间(6±2)月,最短3个月,最长14个月,治愈率93.02%。左房内径消融术后1个月较术前无明显改变[(35.74±5.77)mm vs(35.69±6.25)mm,P>0.05],随访3个月时左房内径较术前显著减小[(31.99±3.66)mm vs(35.69±6.25)mm,P<0.01]。结论房颤患者于术后3个月时左房结构可逆重构。     

RADIOFREQUENCY CATHETER ABLATION OF PERMANENT ATRIAL FIBRILLATION UNDER GUIDANCE OF CARTO-MERGE TECHNIQUE

Objective To investigate the feasibility and effectiveness of radiofrequency catheter ablation (RFCA) to treat permanent atrial fibrillation (AF) under the guidance of Carto-Merge technique. Methods Fifteen male patients with permanent AF underwent RFCA under the guidance of Carto-Merge technique. The mean age was 54.00±10.44 years, and duration of AF was 23.66±14.93 months. Cardiac magnetic resonance angiography (MRA) was performed to obtain pre-procedural three-dimensional (3D) images on the anatomy of left atrium (LA) and pulmonary veins (PVs) before RFCA procedure. Then the electroanatomical map was integrated with 3D images of MRA to form Carto-Merge map that guided step-by-step ablation strategy of permanent AF. Circumferential PV ablation was performed first until complete PVs electric isolation confirmed by Lasso catheter. If AF was not terminated, lesion lines on roof of LA, mitral isthmus, and tricuspid isthmus were produced. Results The episodes of AF were terminated during RFCA in 2 patients, by direct current cardioversion in the remaining 13 patients. Transient AF occurred in 2 patients after ablation on 1st day and 1st week respectively, AF terminated spontaneously not long after taking metoprolol. One patient developed persistent atrial flutter (AFL) in 2 months after procedure and AFL was eliminated by the second ablation. Persistent AF recurred on 1st day, 1st and 5th week respectively in 3 patients, and did not terminate after 3 months even though amiodarone was given. The remaining 12 patients were all free of AF during 2-11 months of follow-up. The recent success rate for RFCA of permanent AF was 80%. Conclusions Carto-Merge technique can effectively guide RFCA of permanent AF. When combined with single Lasso mapping, it can simplify the mapping, lower expenses, and enhance the success rate of RFCA of permanent AF.     

以环肺静脉消融为基础分步消融治疗心房颤动

目的探讨在三维标测系统指导下，以环肺静脉消融为基础，分步消融治疗心房颤动（房颤）的可行性和有效性。方法对12例药物治疗无效的阵发性房颤（10例）和持续性房颤（2例）患者，以三步消融方法进行消融：环肺静脉前庭消融、节段性肺静脉消融和碎裂电位 (CFAEs) 消融。以每个阶段房颤不再被诱发作为消融终点,或完成三个阶段。结果消融结束时，10例阵发性房颤不再被诱发，其中第1阶段7例，第2阶段2例，第3阶段1例。2例持续性房颤在完成所有3个阶段后仍持续发作，最后经体外电转复。3例于术后2d内短暂复发，继续随访后未再房颤复发，1例房颤并典型心房扑动（房扑）患者术后复发房扑，无房颤复发。所有患者经(10±4)个月随访后，均无房颤复发，无左房房性心律失常出现。手术无并发症发生。手术中放电时间(38±11)min, X线透视时间(37±11)min，操作时间(3.0±0.5)h。结论 以房颤不再被诱发为手术终点、以环肺静脉消融为基础的分步消融治疗房颤策略是安全可行的。对于阵发性房颤采用环肺静脉消融术式即有良好效果，而对单纯环肺静脉消融不成功者结合节段性肺静脉消融及碎裂电位消融可进一步提高成功率。     

Carto merge技术指导永久性心房颤动射频消融

目的探讨Carto merge技术指导永久性心房颤动射频消融的作用和优势。方法用Carto merge技术指导射频消融治疗永久性心房颤动15例。术中用Carto导管标测和构建左心房和肺静脉的电解剖图,然后与术前心脏核磁共振造影的三维图像进行数据整合形成二者的复合图形(Carto merge)。首先在Carto merge的指导下行双侧上下肺静脉环线消融,直到Lasso标测证实所有肺静脉均达到电隔离效果,如心房颤动不终止,依次进一步消融左房顶部线、二尖瓣峡部线及三尖瓣峡部线,如上述部位消融后心房颤动仍未终止,即行同步直流电复律恢复窦性心律。结果15例患者中2例在消融过程中心房颤动自行终止,13例均经直流电复律。3例患者分别于术后24h、1和5周时复发持续性心房颤动。其余患者经1～10个月随访,均维持窦性心律。近期手术成功率为80%。结论Carto merge技术可有效地指导永久性房颤的射频消融,结合单Lasso标测,可简化操作,提高消融手术的成功率。     

导管射频消融术治疗特发性房颤的临床疗效和安全性分析

目的 评价导管射频消融术治疗特发性房颤的临床疗效和安全性.方法 38例房颤患者接受治疗,其中阵发性房颤29例,持续性房颤9例.6例行肺静脉电隔离术,32例行Carto指导下环肺静脉前庭隔离术,消融终点均为双侧肺静脉完全电隔离.结果 38例患者术后即刻均成功迭到消融终点,手术过程中无并发症发生.术后3～5d有8例出现了房性心律失常.2例复发患者中1例为持续性房颤转为阵发性房颤,再次行导管消融获得成功;1例阵发性房颤发作频率明显减少、口服胺碘酮可维持窦性心律.其余36例患者均无房颤复发.所有患者术后均未发生与导管消融有关的并发症.结论 导管射频消融术治疗特发性房颤是安全有效的治疗方法 .     

心房颤动导管消融的围手术期护理与并发症处理

目的:探讨在三维电解剖标测(Three-dimensional electroanatomical mapping,CARTO)系统指导下进行射频消融治疗心房颤动的护理方法及并发症的处理.方法:对81例反复发作的阵发性房颤和17例持续性房颤行射频消融术治疗的患者进行观察和护理.术前做好心理护理,术后密切观察患者生命体征,加强并发症的观察和护理.结果:87.65%(71/81)的阵发性房颤(随访时间16±5)和58.82%(10/17)的持续性房颤患者(随访时间13±5)维持窦性心律,二组间窦性心律的维持率有显著差异(P<0.05).窦性心律下房颤消融的手术时间显著短于房颤节律下的消融时间(188±30与243±26 min,P<0.01).本组有2例患者出现心包填塞,1例胸壁血肿,1例中重度肺静脉狭窄,1例急性胃扩张,总的并发症发生率为5.1%,经护理和治疗后全部康复.结论:CARTO三维标测系统指导下行射频消融治疗房颤安全有效.规范化的护理是取得良好疗效的重要保障.