杨秀婷,刘启功.左心耳来源的局灶性房性心动过速的临床特点和治疗杨秀婷金元超 曾艳 张雨薇刘启功[J].内科急危重症杂志,2015,21(6):
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| DOI： |
| 中文关键词: 左心耳 局灶性房性心动过速 射频导管消融 |
| 英文关键词:left atrial appendage, focal atrial tachycardia, radiofrequency catheter ablation |
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| 中文摘要: |
| 左心耳来源的房性心动过速非常少见,多呈持续性发作,药物疗效不佳,容易导致心动过速性心肌病。心电图表现为：Ⅰ和aVL导联P波倒置,Ⅱ、Ⅲ、aVF导联P波直立。左心耳来源的房性心动过速多为自律性增高或微折返机制,电生理检查可明确发生机制及房速的起源部位。导管消融风险较大,也可直接外科手术切除左心耳。 |
| 英文摘要: |
| Atrial tachycardia(AT) originating from left atrial appendage (LAA) was relatively uncommon, which was always incessant, drug-refractory and leaded to cardiomyopathy. The P-wave morphology during AT was highly positive in inferior leads and positive inⅠand aVL leads. Abnormal enhanced automaticity and micro-reentry were the main mechanism of focal atrial tachycardia originating from left atrial appendage suggested by Electrophysiological study. Appendectomy was the effective measure to cure focal atrial tachycardia originating from left atrial appendage due to the high risk of radiofrequency catheter ablation. |
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