高龄心房颤动患者导管消融治疗围术期抗凝方案的研究

目的 探讨高龄心房颤动(房颤)患者行导管消融治疗围术期有效而安全的抗凝方案.方法 选取射频消融治疗的高龄(＞75岁)房颤患者15例(高龄组),术前服用华法林;同期＜75岁射频消融治疗房颤患者15例(非高龄组),根据栓塞风险服用华法林或阿司匹林治疗.术中均用肝素抗凝;高龄组术后以低分子肝素过渡,第3天开始服用华法林,非高龄组术后从第1天开始华法林与低分子肝素重叠应用3d;院外两组服用华法林抗凝3个月.3个月后根据CHADS2评分服用阿司匹林或华法林治疗.门诊随访至少12个月,比较两组凝血酶原时间-国际标准化比值(PT-INR)、6个月内出血和栓塞事件发生率及术后3、6、12个月24 h动态心电图记录心律失常情况.结果 术前高龄组与非高龄组PT-INR值(1.58±0.32对1.37±0.44,P＞0.05),术后INR达标天数[(11.73±3.29)d对(9.71±3.63)d,P＞0.05];左心房内自发显影情况[3例(20.00％)对4例(26.67％),P＞0.05];出血并发症(0对6.67％,P=0.05)、栓塞事件发生率(6.67％对0,P=0.05)差异无统计学意义.两组间术后3、6、12个月心律失常复发情况差异无统计学意义.结论 高龄房颤患者行导管消融治疗术前需严格抗凝并排除心房血栓;术中抗凝与常规用药相同;术后延迟加用华法林治疗同样安全有效.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

目的探讨持续性心房颤动（房颤）患者经导管射频消融术中不同抗凝方案与围术期血栓事件的关系。方法2004年7月至2007年10月连续收治行导管射频消融治疗的持续性房颤145例。所有患者术前均口服华法林抗凝,使国际标准化比率（INR）控制在2．0—3．0至少1个月。消融前停用华法林并用低分子肝素替代抗凝。2004年7月至2006年1月消融的患者（组Ⅰ）64例,完成房间隔穿刺后,静脉给予普通肝素5000U;2006年2月至2007年10月消融的患者（组Ⅱ）81例,完成房间隔穿刺后根据患者体重予以肝素（100U／kg）,两组患者消融术中每小时均追加肝素1000U。消融后行低分子肝素抗凝3d并口服华法林治疗至少3个月。结果组Ⅰ有4例患者于围术期出现血栓形成或血栓栓塞;组Ⅱ1例持续性房颤患者因消融后第3天自行停用华法林出现短暂性脑缺血发作,其余严格抗凝的患者均未出现血栓事件。组Ⅰ与组Ⅱ消融术前后达到抗凝要求的持续性房颤患者血栓事件发生率差异有统计学意义（4／64对0／80,P=0．037）。结论消融中根据患者体重调整抗凝强度可以显著减少持续性房颤患者围术期血栓事件并发症的发生。     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

持续性心房颤动射频消融术中不同抗凝方案与围术期血栓事件的关系

Objective The relationships between different anticoagulation methods during radiofre-quency catheter ablation(RFCA) of persistent/permanent atrial fibrillation (AF)and thromboembolic events in our center were evaluated. Methods From July 2004 to October 2007, RFCA was consecutively performed in 145 persistent/permanent AF patients. Anticoagulation with warfarin was administrated in all patients before op-eration for at least 1 month, with the international normalized ratio(INR) maintained between 2.0 and 3.0. Be-fore procedure,warfarin was discontinued and replaced by low molecular weight heparin(LMWH). After atrial septum puncture,a total of 5000 U tmfractioned heparin(UFH) were given to patients of group Ⅰ who under-went the ablation from July 2004 to January 2006,while patients of group Ⅱ who underwent the ablation from February 2006 to October 2007 were heparinized(100 U/Kg) according to their weights. During operation, 1000 U UFH was appended per hour. After procedure, LMWH was used for 3 days while warfarin was initiated at the same time and continued for at least 3 months. Results Four patients in group Ⅰ (64 patients ,51 men)experi-enced thrombosis or embolism during or after ablation. One female persistent AF patient in the group Ⅱ (81 pa-tients,67 men)who didn' t fulfill the anticoagulatian therapy experienced TIA after ablation. No thrombeembolic event was identified in other patients of group Ⅱ who fulfilled the anticoagulation therapy. The incidence of thromboembolic event of persistent/permanent AF patients who fulfilled the anticoagulation therapy in the group Ⅱwas lower than that of group Ⅰ (4/64 vs. 0/80, P = 0.037). Conclusions Strengthen the anticoagulation therapy according to patients' weights during radiofrequency ablation could significantly decrease the incidence of thromboembolic event in patients with persistent/permanent AF.     

不同抗凝策略对心房颤动导管消融心脏压塞并发症处理的影响

目的：观察围术期不同抗凝策略对心房颤动（房颤）导管消融心脏压塞并发症处理的影响。方法连续入选2007年1月至2013年12月4487例导管消融术中发生心脏压塞并发症的患者27例,发生率0.6%。按围术期抗凝策略分组：第1组患者术前停用华法林3～5 d,以低分子肝素皮下注射桥接过渡;第2组患者围术期不中断华法林抗凝,国际标准化比值（INR）控制在1.8～2.5。对比两组患者心脏压塞并发症的临床处理及转归。结果共27例急性心脏压塞的患者入选,其中第1组18例,第2组9例。除术前INR（0.9＆#177;0.1比2.3＆#177;0.5,P＜0.001）之外,两组基线资料包括年龄、左心房前后径、血小板计数、术中肝素用量、术中活化凝血时间（ACT）等均差异无统计学意义。所有患者均在剑突下穿刺心包成功并置入6 F猪尾管引流,两组心包积液引流量分别为（365＆#177;222）ml和（506＆#177;300）ml,P=0.137;分别有10例（55.6%）和7例（77.8%）应用了自体血回输技术,P=0.406;分别有2例（11.1%）和1例（11.1%）心包引流无效进行急诊外科开胸,P＞0.999;两组患者住院时间分别为（9.6＆#177;3.3）d和（12.1＆#177;4.5）d, P=0.167。未发生其他严重并发症。结论房颤导管消融围术期不中断华法林抗凝对急性心脏压塞并发症的处理及预后无明显不良影响。     

阵发性心房颤动肺静脉隔离后诱发房性心律失常的电生理特征分析和长期随访

目的分析阵发性心房颤动(房颤)患者肺静脉隔离术后诱发房性心律失常的电生理学特征和长期随访结果。方法连续纳入2010年2月至2010年10月在北京安贞医院心内科行单纯双侧肺静脉电隔离术并行诱发试验的阵发性房颤患者198例。消融后用冠状窦远端快速起搏(周长以250 ms起始直至心房不应期或180 ms)及静点异丙肾上腺素2~4μg/min,诱发房性心律失常持续大于1 min为诱发阳性。诱发出的心动过速以CARTO引导下的激动标测和拖带标测判定机制并进行针对性消融。所有患者术后随访36个月。结果阵发性房颤患者中有39例(19.7%)诱发出共49种房性心动过速(房速),包括35种规则房速和14种房颤。诱发组左心房内径显著大于未诱发组[(39.5±6.6)mm比(36.7±5.2)mm,P=0.004],而年龄、性别、房颤病史、服用抗心律失常药种类、胺碘酮服用史、结构性心脏病比例和左心室射血分数等差异均无统计学意义。诱发出的规则房速中以大折返最为多见,占28例(80.0%)。按诱发心动过速的起源或消融关键部位发生率依次为二尖瓣环峡部(MI)20种(40.8%),三尖瓣环峡部(CTI)12种(24.5%),肺静脉(PV)6种(12.2%,其中右肺静脉2种、左肺静脉4种)、左心房间隔面4种(8.2%)、上腔静脉3种(6.1%)、左心房顶部1种(2.0%)和其他3种(6.1%)通常用线性消融可终止。随访36个月,诱发组和未诱发组成功率差异无统计学意义(63.9%比60.7%,P=0.592)。结论阵发性房颤肺静脉隔离术后以异丙肾上腺素静点+心房快速起搏诱发的心律失常以MI和CTI依赖最为多见,可被针对性线性消融有效终止,且并不增加远期复发率。     

心房颤动患者抗凝的新选择—ximelagatran

华法林是预防心房颤动血栓栓塞的有效药物,但由于药物本身的局限性使其没有充分应用。ximelagatran是一种有前途的口服直接凝血酶抑制剂,将来可能会取代华法林。本文将对华法林抗凝的益处和局限性,ximelagatran的药理学特点、临床试验评价和优势作一综述。     

风湿性心脏病瓣膜置换术后心房颤动的导管消融病例总结

目的：评价风湿性心脏病瓣膜置换术后心房颤动（房颤）消融的效果和安全性。方法入选2008年至2013年在广东省人民医院心内科接受房颤导管消融治疗的风湿性心脏病瓣膜置换术患者,分析其临床特征、消融策略及消融成功率。结果共纳入23例患者,男8例,女15例,平均年龄（51.0＆#177;9.2）岁。单纯二尖瓣置换术患者13例（56.5%）,二尖瓣、主动脉瓣双瓣置换术10例（43.5%）,其中5例同时进行三尖瓣置换或整形术。外科术后阵发性房颤患者14例（60.9%）,非阵发性房颤9例（39.1%）;这些患者在外科术前心律情况为9例窦性心律,4例阵发性房颤,10例非阵发性房颤。导管消融距离外科手术时间为（6.9＆#177;5.8）年,外科术后发生房颤病程（3.1＆#177;3.2）年,左、右心房内径分别为（44.1＆#177;5.9）mm、（48.1＆#177;9.0）mm,左心室射血分数64.0%＆#177;8.3%。平均消融手术时间（156.8＆#177;46.6）min,X线曝光时间（27.3＆#177;11.2）min。随访（29.7＆#177;21.2）个月,其中4例（17.4%）患者接受再次消融术;14例（60.9%）维持窦性心律（6例服用胺碘酮）,1例死亡,2例失访,6例复发（包括2例持续性房颤,1例阵发性房颤,2例偶发性心房扑动,1例阵发性房性心动过速）。结论风湿性心脏病瓣膜置换术后房颤导管消融有效、安全,步进式导管消融策略可能较为合适。     

单次冷冻球囊消融治疗心房颤动长期随访效果

目的：分析冷冻球囊消融（CBA）治疗心房颤动（房颤）患者的单中心长期随访效果,探讨影响其疗效的相关临床因素。方法回顾性分析2009年1月至2013年4月接受CBA治疗的房颤患者的住院病历资料、手术记录和门诊随访资料。术前经胸超声测量左心房内径（LAD）。术后3个月后出现的房颤、心房扑动（房扑）、房性心动过速（房速）发作判定为CBA治疗失败。结果199例房颤接受CBA治疗,术中并发膈神经麻痹3例（1.5％）,术后发生心包积液1例（0.5％）、短暂性脑缺血发作1例（0.5％）,均自行缓解。在平均（23±14）个月随访中152例患者完成随访,其中65例（42.8％）治疗成功,失败患者中75例（86.2％）为术后12个月内复发。失败患者年龄较大[（62±7）比（52±10）,P=0.0379]、LAD较大[（47±7）mm比（43±6）mm,P＜0.0001],持续性房颤患者治疗成功率（29.5%）明显低于阵发性房颤患者（48.1％）。Logistic回归分析显示年龄[OR=1.037（1.000,1.076）,P=0.0488]和LAD[OR=0.896（0.842,0.953）,P=0.005]能独立预测初次CBA治疗效果。结论 CBA治疗房颤安全有效,长期随访效果较好。房性心律失常复发主要发生在术后12个月内。年龄和LAD是预测术后复发的独立危险因素。     

阵发性心房颤动经导管射频消融治疗评价

目的　探讨经导管射频消融治疗阵发性心房颤动 (房颤 )的安全性和有效性。方法　 74例发作频繁、药物治疗无效的阵发性房颤 ,前 5 0例的消融靶点为房颤特异性早搏或房颤的起源部位 ,消融终点为自发和诱发的房颤特异性早搏或房颤消失 (终点 1) ;后 2 4例的消融靶点为致心律失常性肺静脉的开口部 ,消融终点为该肺静脉的肺静脉电位消失 (终点 2 )。结果　共发现 111个异位灶 ,行76次消融术 ,有 5 8例 (78 4% )达到消融终点。随访 1～ 31(12 9± 6 6 )个月 ,2 3例 (31 1% )消融成功 ,可以无需药物而维持窦性心律。术中达到消融终点者的成功率为 39 7% (2 3例 / 5 8例 ) ,其中达终点 1者为 34 1% (15例 / 44例 ) ,达终点 2者为 5 7 1% (8例 / 14例 )。并发症 :无症状的单支肺静脉狭窄 5例(6 8% )、气胸 1例 (1 4% ) ,均发生于本组的前 30例中。结论　经导管射频消融治疗阵发性房颤较为安全 ,但成功率尚待提高 ,目前可用于部分发作频繁、症状严重、而且药物治疗无效的患者。