房颤患者射频消融术后短期内左心耳的功能改变

发布时间：2018-09-10 10:22

【摘要】：目的：通过经食道心脏超声检查测量房颤患者行射频消融术前和术后24-48小时左心耳的相关超声指标,评估左心耳短期内的功能变化及左心耳出现血栓的风险。方法：纳入2014年11月至2015年4月共28例阵发性心房颤动患者。术前24-48小时内行经食道心脏超声检查测量左心耳最大排空速度(LAA flow emptying velocity,LAA-FEV)、左心耳最大充盈速度(LAA flow filling velocity,LAA-FFV)、左心耳最大面积(Maximum left atrial appendage,LAA max)及最小面积(Minimum left atrial appendage,LAA min),计算左心耳面积变化率(Area change rate of the left atrial appendage,LAA-EF):(LAA max-LAA min)/LAA max,并在食道超声下观察有无左心耳自发显影(Spontaneous echo contrast,SEC)以及血栓。之后行房颤射频消融术,术后24-48小时内再次行食道心脏超声测量相同数据。结果：术前与术后相比LAA-FEV、LAA-FFV、LAA-EF未见明显变化(PO.05),术后2例患者新出现左心耳自发显影(P0.05)。结论：阵发性房颤患者行射频消融术后短期内未见明显左心耳功能变化,同时有增加左心耳血栓的趋势,但无统计学意义。
[Abstract]:Objective: to evaluate the changes of left atrial appendage function and the risk of thrombus in left atrial appendage before and 24 to 48 hours after radiofrequency ablation in patients with atrial fibrillation by transesophageal echocardiography. Methods: from November 2014 to April 2015, 28 patients with paroxysmal atrial fibrillation were included. The maximal left atrial appendage emptying velocity (LAA flow emptying velocity,LAA-FEV), left atrial appendage maximum filling velocity (LAA flow filling velocity,LAA-FFV), left atrial appendage maximum area (Maximum left atrial appendage,LAA max) and minimum area (Minimum left atrial appendage,LAA min), were measured by transesophageal echocardiography within 24-48 hours before operation. Ear area change rate (Area change rate of the left atrial appendage,LAA-EF): (LAA max-LAA min) / LAA max, and left atrial appendage spontaneous development (Spontaneous echo contrast,SEC) and thrombus were observed under esophagus ultrasound. Then radiofrequency ablation of atrial fibrillation was performed, and esophageal echocardiography was performed 24-48 hours after operation. Results: there was no significant change in LAA-FEV,LAA-FFV,LAA-EF (PO.05) before and after operation. Spontaneous left atrial appendage was found in 2 patients after operation (P0.05). Conclusion: there was no significant change of left atrial appendage function in patients with paroxysmal atrial fibrillation after radiofrequency ablation, but there was no statistical significance.
【学位授予单位】：广西医科大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R541.75

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