左室功能正常患者阵发性心房颤动或扑动成功转律后的再发

房颤(Af)是很常见的心律失常且常呈阵发性,相反房扑(AF)少呈阵发性。本研究观察了阵发性 Af 或AF 病人经药物或电转律成功后再发间期(recurrence-free interval)长短及整个临床过程的预测因素。方法:阵发性 Af 或 AF 病人145例,均经超声心动图证实左室功能正常。按计划先应用静脉抗心律失常药物转律,无效者用直流电转律。阵发性 Af 或 AF 定义为心电学证实的快速心律失常,时间短于6个月,阵发性发作间期为窦性心律。转为窦律后一般给予抗心律失常药物。未常规用抗凝治疗。阵发性 Af 或 AF 再发定义为心电图记录有 Af 或 AF 发生,或有 Af 或 AF 的典型症状。再发间期定义为转为窦律后到第一次再发之间的时间。随访中,良性病程指未再发作或不常发作(发作以月计次),不良病程指反复发作(以周计次)或经常发作(以天计次)。结果:145例中.124例(85%)为阵发性 Af.21例     

阵发性心房颤动患者射频消融术后复发的预测因素分析

目的:探讨与阵发性心房颤动(AF)患者导管射频消融术后心律失常复发相关的预测因素。方法:收集2013-03至2016-03接受导管射频消融的阵发性AF患者142例,分为复发组(n=46)和未复发组(n=96),比较两组临床资料差异。采用单因素及多因素Logistic回归分析阵发性AF消融术后复发相关的因素。根据尿酸水平(单位:μmol/L)的四分位数,分为Q1组(259,n=33)、Q2组(259~320,n=37)、Q3组(321~380,n=37)、Q4组(380,n=35),组间采用Kruskal-Wallis检验分析。受试者工作特征(ROC)曲线分析尿酸及尿酸联合代谢综合征(MS)在AF术后复发预测中的价值。结果:复发组与未复发组临床资料比较,体重指数、糖尿病、MS、AF病程、CHADS_2评分、肌酐、尿酸、B型利钠肽、左心室射血分数等,差异均有统计学意义(P均0.05)。Logistic回归分析,AF病程(OR=1.02,95%CI:1.01~1.03,P=0.002)、尿酸水平(OR=1.01,95%CI:1.00~1.01,P=0.046)、MS(OR=4.73,95%CI:1.36~16.45,P=0.014)是AF复发的独立预测因子。根据尿酸四分位数分组临床资料比较提示性别、体重指数、MS、肌酐、左心室射血分数及AF复发等,差异均有统计学意义(P均0.05)。ROC曲线分析提示,尿酸+MS在预测AF消融术后复发中的敏感性为80.4%,特异性为74.1%(AUC:0.79±0.04,95%CI:0.71~0.89,P=0.0001),而尿酸在预测AF术后复发中的敏感性为73.9%,特异性为57.2%(AUC:0.66,95%CI:0.56~0.76,P=0.02),尿酸+MS在AF消融术后复发中比尿酸更有预测价值,差异有统计学意义(P0.05)。结论:尿酸及MS与阵发性AF消融术后复发相关,高尿酸合并MS对AF消融术后复发有一定的预测价值。     

阵发性心房颤动肺静脉电隔离术后复发患者的处理

目的 :探讨阵发性心房颤动 (房颤 )肺静脉电隔离术后复发患者的治疗方案。方法 :4 9例术后复发患者均首先接受为期 3个月的抗心律失常药物治疗 ,之后是否行再次房颤消融术取决于以下 2个条件 :①房颤的发作频度和持续时间较术前无变化或减少程度 <5 0 % ;②出现明显药物副作用。结果 :抗心律失常药物治疗 3个月后 ,12例 (2 4 .5 % )无房颤发作 ,其中 5例在停药后亦无发作 ;17例 (34.7% )房颤虽仍有发作 ,但发作频率和持续时间较术前明显减少 (>5 0 % ) ;2 0例 (4 0 .8% )具有再次消融术指征 ,其中 5例接受手术 ,术后 2例复发 ,均可通过药物治疗得以控制。结论 :抗心律失常药物为主、再次消融术为辅的治疗方案对于多数肺静脉电学隔离术后复发的阵发性患者具有良好效果。     

2016年ASE/EACVI指南评估的左室舒张功能对阵发性心房颤动术后复发的预测价值

目的 评价阵发性心房颤动(房颤)患者行射频导管消融术的疗效,探讨2016年版舒张功能指南对阵发性房颤患者经射频导管消融术后晚期复发的影响.方法 连续入选2016年1月—2017年12月在苏州大学附属第一医院行射频导管消融术的阵发性房颤患者211例.收集患者基线资料,使用2009年ASE/EAE指南及2016年ASE/E...     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

目的旨在探讨心房颤动（房颤）递进式线性消融术中出现的房性心律失常的电生理特点及消融的结果。方法对80例房颤消融中出现规律的房性心律失常进行非接触激动顺序标测,判断电生理机制并指导消融。结果共146阵心动过速,4阵为左心房房性心动过速（房速）,周长为（225±49）ms,其余142阵为左心房扑动,左心房激动时间占心动过速周长的100％,周长为（205±37）ms,均与房颤“7”字消融线上的缝隙有关。根据缝隙的位置将心房扑动的折返环分为3类：Ⅰ类（n=68）,缝隙位于左心耳-左上肺静脉间的嵴部,Ⅱ类（n=50）,缝隙位于左心房顶部,Ⅲ类（n=24）,缝隙位于二尖瓣环峡部。其中130阵消融成功,其余16阵因消融反应欠佳后经药物或体外电转复为窦性心律。随访（16．2±6．7）个月,82．5％（66／80）的患者可维持窦性心律。结论房颤递进式线性消融术中出现的房性心律失常多为大折返机制,且与“7”字消融线上的缝隙有关,这些缝隙主要位于左心耳-左上肺静脉间的嵴部。非接触标测技术能快速准确地识别这些缝隙并指导消融。     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

心房颤动递进式线性消融后的左心房扑动

Objective This study attempted to delineate the mechanism of organized loft atrial tachya-rrhythmia (AT) during stepwise linear ablation for atrial fibrillation (AF) using noncontact mapping. Methods Eighty patients in whom organized ATs developed or induced during stepwise linear ablation for AF were en-wiled. Left atrial (LA) activation during ATs was mapped using noncontact mapping. Radiofrequency energy was delivered to the earliest activation site or narrowest part of the re-entrant circuit of ATs. Results A total of 146 ATs were mapped. Four ATs were characterized as a focal mechanism [cycle length (225 ± 49) ms]. A macro-reentrant mechanism was confirmed in the remaining 142 ATs using noncontact mapping. LA activation time accounted for 100% of cycle length (205±37) ms. All 142 ATs used the conduction gaps in the basic fig-ure-7 lesion line. There were 3 types of circuits classified based on the gap location. Type Ⅰ (n = 68) used gaps at the ridge between left superior pulmonary vein (LSPV) and left atrial appendage (LAA). Type Ⅱ(n = 50) used gaps on the LA roof. Type Ⅲ (n = 24) passed through gaps in the mitral isthmus. Ablation at these gaps eliminated 130 ATs, but the remaining 16 ATs required cardioversion to sinus rhythm due to a poor response to ablation. Conclusion Vast majority of left ATs developed during stepwise linear ablation for AF are macro-reen-trant through conduction gaps in the basic figure-7 lesion line, especially at the ridge between LSPV and LAA. Noncontact activation mapping can identify these gaps accurately and quickly to target effective catheter ablation.     

PR间期延长的阵发性心房颤动患者消融术后复发的危险增加

正有研究证明PR间期延长患者发生心房颤动(简称房颤)的危险增加。但是,PR间期延长对阵发性房颤射频消融术后复发的影响尚不明确。入选112例PR间期延长患者(PR间期200 ms)作为PPR组,另选年龄、性别匹配的112例PR间期正常者作为NPR组纳入本研究。房颤复发定义为消融术后3个月后未服用任何抗心律失常药物的情况下发生持续超过30 s的房性心动过速。     

心房颤动及扑动的临床研究进展

心房颤动和扑动,是最常见的心律失常.据 Framingham 地区的人群调查结果,20年间心房颤动的出现机率为2%,并随着年龄增长而增加。以下对其发病机理、临床意义和治疗进展作一综述。病因和发病机理心房颤动可为阵发性或持续性。阵发性(或间歇性)心房颤动见于中毒、代谢性或炎症性疾病等,例如急性酒精中毒、甲状腺毒症、肺炎、肺栓塞、心包炎、胸部手术或肿瘤侵犯心包等;也可见于糖尿病或高血压等.随年龄增长而增加,多     

心房颤动及扑动的药物治疗

心房颤动及扑动的药物治疗陶萍（中国医学科学院心血管病研究所中国协和医科大学阜外心血管病医院临床药理研究室北京１０００３７）心房颤动（Ａｆ）及扑动（ＡＦ）为较常见的心律失常，５０岁以上发生Ａｆ者占２％～５％，７０岁以上则更多见。无论Ａｆ或ＡＦ患者均可能...     

心房颤动患者左室舒张功能的超声研究

心房颤动(房颤)是心力衰竭的重要危险因素之一,与收缩功能相比,左室舒张功能与心力衰竭患者的症状、运动耐量、预后更密切。因此,及时发现房颤患者潜在的舒张功能障碍非常重要。超声心动图是目前常用的评价心室舒张功能的非侵入性方法。随着心脏超声技术的不断发展,应用独立于心房收缩的超声参数评估房颤患者左室舒张功能已成为可能。     

静注地尔硫治疗充血性心力衰竭伴心房颤动或扑动

临床沿用静注维拉帕米或地尔硫革快速控制无充血性心力衰竭伴心房颤动(Af)或扑动(AF)患者心室率。但由于这两种药物的负性肌力效应,对充血性心力衰竭(CHF)患者的应用受到限制。本文为多中心、随机、双盲和安慰剂平行对照试验,目的是确定静注地尔硫革能否快速、安全、有效地控制中、重度CHF伴Af或AF患者心室率。