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《中国心脏起搏与心电生理杂志》2020,(1)
最近研究显示左心耳不仅是心房颤动(简称房颤)相关血栓形成最常见的部位,且参与房颤的触发与维持机制。近年来大量研究表明肺静脉隔离基础上附加左心耳电隔离(LAAI)可显著降低房颤复发风险。LAAI方法有射频或冷冻消融LAAI、左心耳切除、左心耳结扎。LAAI对左心耳内血栓形成的影响尚不明确,LAAI后卒中预防策略可于术后6个月行经食管超声检查后评估,初步研究表明LAAI联合左心耳封堵不仅降低房颤复发风险也降低血栓栓塞事件发生。 相似文献
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目前持续性心房颤动消融的成功率仍不理想,有研究证实左心耳电隔离可以增加持续性心房颤动消融成功率,但消融过程中可能出现膈神经损伤,以及左心耳收缩功能受损,可能增加心房颤动患者左心耳血栓形成、脑卒中风险。左心耳电隔离术可以增加消融成功率,但术后需考虑长期口服抗凝剂或者进行左心耳封堵术或左心耳套扎术。 相似文献
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提高持续性心房颤动的介入治疗成功率是亟待解决的难题。近年发现, 左心耳不只是心腔内血栓形成的常见部位, 更参与了心房颤动的触发与维持, 因此对左心耳实施电隔离成为持续性心房颤动治疗的新策略之一。本文将从左心耳参与心房颤动的理论基础、左心耳电隔离术的有效性与安全性、左心耳电隔离联合左心耳封堵术以及术后抗凝策略等方面展开综述。 相似文献
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心房颤动(房颤)是严重危害人群健康的最大心血管"流行病"之一。房颤的患病率及发病率均随年龄增长逐步增加。房颤是脑卒中的独立危险因素,其病死率、致残率以及住院天数均显著升高。不同类型的房颤脑卒中的风险相似。房颤管理的重点和核心是预防脑卒中,改善患者预后。左心耳因其特殊形态及结构是房颤血栓形成最主要的部位,同时也是房颤发生和维持的关键区域之一。采用消融技术(射频和冷冻球囊消融)消除引发房颤的触发器和/或改变心律失常的基质以终止房颤,同时联合较新的左心耳封堵技术彻底去除血栓根源,预防脑栓塞成为目前心血管临床研究的热点和重点。近年新的指南与共识均将消融和左心耳封堵列为房颤治疗的重要措施。本文综述了消融技术联合左心耳封堵防治房颤栓塞临床研究有关进展,供临床参考与借鉴。 相似文献
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心房颤动(房颤)是临床上常见的心律失常之一,其发病率随着年龄的增长而升高。房颤不仅影响患者的生活质量,还会导致多种并发症影响患者的预后。在非瓣膜性房颤患者中,缺血性卒中的发生率是非房颤患者的2~7倍。房颤导致的卒中占所有卒中的20%,且致残率和致死率更高。近期的研 相似文献
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《中国心脏起搏与心电生理杂志》2016,(3)
目的导管消融无法完全去除心房颤动(简称房颤)患者的卒中风险。而近期左心耳封堵已在预防房颤卒中方面显示出一定的优势。本研究的目的在于明确联合左心耳封堵与导管消融治疗高危卒中阵发性房颤患者的可行性。方法本研究共入选了28例卒中风险高危的阵发性房颤患者,其中男性17例,女性11例,年龄(75.9±4.3)岁。房颤病史(5.3±3.9)年。CHA2DS2-VASc评分(5.4±1.5)。所有患者都有卒中史,轻者仅表现为一过性脑缺血发作,重者表现为大面积脑梗死。术前3天内完成经食管超声心动图(TEE)检查,排除左房内血栓。导管消融的术式是环肺静脉线性消融,终点为完成双侧肺静脉的电隔离;随即于左心耳内植入Lefort封堵器。术后45天内口服华法林(或新型口服抗凝药)+阿司匹林+氯吡格雷,随后服阿司匹林+氯吡格雷至6个月,之后长期维持口服阿司匹林。于第3、6、12、18、24个月时随访心律状态及卒中再发的情况。结果所有患者均成功完成了导管消融+左心耳封堵术。随访(12.9±3.2)个月,有24例患者维持窦性心律。无一例患者再发卒中。仅1例患者出现轻微的心包渗液,未行特殊处理自行吸收。结论对于卒中风险高危的房颤患者,同时行导管消融及左心耳封堵是可行的,且安全、有效。 相似文献
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导管消融联合左心耳封堵一站式治疗非瓣膜性房颤(NVAF)具有较多优点,受到广泛关注。该文介绍一站式治疗NVAF的发展历程,一站式治疗NVAF的联合顺序、适应证、导管消融类型及左心耳封堵的研究进展。 相似文献
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<正>心房颤动(房颤)是临床上常见的心律失常。据国外报道,成人房颤的患病率在2%~4%之间。对我国30~85岁人群的流行病学调查提示:房颤患病率为0.65%,在年龄>80岁人群中高达7.5%[1]。随着人均寿命的延长及对房颤检测的加强,预计未来患病率将持续增长。房颤明显增加缺血性卒中以及动脉栓塞的风险。20%~30%的房颤患者会发生缺血性卒中,其风险是非房颤患者的4~5倍。口服抗凝治疗是预防房颤患者缺血性卒中的基础。国内应用的抗凝药物主要包括维生素K拮抗剂(华法林)以及新型/直接口服抗凝药(novel/new oral anticoagulant,NOAC/direct oral anticoagulant,DOAC)。 相似文献
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成为公共健康沉重负担的心房颤动和相关的血栓栓塞性脑卒中事件仍在以惊人的速度增长。心房颤动导致脑卒中的风险增加了5倍..因此,预防脑卒中的心房颤动管理仍然是最关键的一方面。现在公认的重点预防措施就是规范抗凝,包括已使用很广泛的华法林和现在出现的新抗凝药如利伐沙班等。而且抗凝药的使用已有据可查。由于左心耳在心房鲡动血栓的发生中起关键作用,所以有目的性地去除或结扎左心耳来预防发生脑卒中就成了一种可替代的治疗方法,尤其是适用于那些不适合口服抗凝药的患者,,现就左心耳预测心房颤动发生脑卒中进行介绍。 相似文献
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心房颤动是最为常见的心律失常之一,极易引起脑卒中事件。左心耳是血栓形成的主要部位,封堵左心耳可减少心房颤动血栓的发生率。现就封堵左心耳来预防心房颤动患者脑卒中的研究做一综述。 相似文献
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Chang SH Tsao HM Wu MH Tai CT Chang SL Wongcharoen W Lin YJ Lo LW Hsieh MH Sheu MH Chang CY Hou CJ Chen SA 《Journal of cardiovascular electrophysiology》2007,18(1):47-52
Introduction: The left atrial appendage (LAA) has been proven to be the most important site of thrombus formation in patients with atrial fibrillation (AF). However, the information regarding the morphometric alteration of the LAA related to the outcome of AF ablation is still lacking. Thus, we evaluated the long-term changes of the LAA morphology in patients undergoing catheter ablation of AF using magnetic resonance angiography (MRA).
Methods and Results: Group 1 included 15 controls without any AF history. Group 2 included 40 patients with drug-refractory paroxysmal AF. They were divided into two subgroups: group 2a included 30 patients without AF recurrence after pulmonary vein (PV) ablation. Group 2b included 10 patients with late recurrence of AF. The LAA morphology before and after (20 ± 11 months) ablation was evaluated by three-dimensional MRA. The group 2 patients had a larger baseline LAA size (including the LAA orifice, neck, and length) and less eccentric LAA orifice and neck. After the AF ablation, there was a significant reduction in the LAA size in the group 2a patients, and the morphology of the LAA neck became more eccentric during the follow-up period. In group 2b, the LAA size increased and no significant change in the eccentricity of the orifice and neck could be noted.
Conclusions: The morphometric remodeling of the LAA in the AF patients could be reversed after a successful ablation of the AF. Progressive dilation of the LAA was noted in the patients with AF recurrence. These structural changes in the LAA may play a role in reducing the potential risk of cerebrovascular accidents. 相似文献
Methods and Results: Group 1 included 15 controls without any AF history. Group 2 included 40 patients with drug-refractory paroxysmal AF. They were divided into two subgroups: group 2a included 30 patients without AF recurrence after pulmonary vein (PV) ablation. Group 2b included 10 patients with late recurrence of AF. The LAA morphology before and after (20 ± 11 months) ablation was evaluated by three-dimensional MRA. The group 2 patients had a larger baseline LAA size (including the LAA orifice, neck, and length) and less eccentric LAA orifice and neck. After the AF ablation, there was a significant reduction in the LAA size in the group 2a patients, and the morphology of the LAA neck became more eccentric during the follow-up period. In group 2b, the LAA size increased and no significant change in the eccentricity of the orifice and neck could be noted.
Conclusions: The morphometric remodeling of the LAA in the AF patients could be reversed after a successful ablation of the AF. Progressive dilation of the LAA was noted in the patients with AF recurrence. These structural changes in the LAA may play a role in reducing the potential risk of cerebrovascular accidents. 相似文献
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Fabrizio Rosati MD Gijs E. de Maat MD PhD Mattia A. E. Valente MD Massimo A. Mariani MD PhD Stefano Benussi MD PhD 《Journal of cardiovascular electrophysiology》2021,32(10):2865-2872
Atrial fibrillation (AF) is the most common atrial arrhythmia, but it is not a benign disease. AF is an important risk factor for thromboembolic events, causing significant morbidity and mortality. The left atrial appendage (LAA) plays an important role in thrombus formation, but the ideal management of the LAA remains a topic of debate. The increasing popularity of surgical epicardial ablation and hybrid endoepicardial ablation approaches, especially in patients with a more advanced diseased substrate, has increased interest in epicardial LAA management. Minimally invasive treatment options for the LAA offer a unique opportunity to close the LAA with a clip device. This review highlights morphologic, electrophysiologic, and surgical aspects of the LAA with regard to AF surgery, and aims to illustrate the importance of surgical clip closure of the LAA. 相似文献
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Optimal combination strategy of left atrial appendage closure plus catheter ablation in a single procedure in patients with nonvalvular atrial fibrillation 下载免费PDF全文
Xianfeng Du MD Huimin Chu MD Bin He MD Binhao Wang MD Jing Liu MD Mingjun Feng MD Yibo Yu MD Guohua Fu MD He Jin MD Fang Gao MD Jingjing Zhu MD Xiaomin Chen MD 《Journal of cardiovascular electrophysiology》2018,29(8):1089-1095
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