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目的 比较经胸超声心动描记术 (TTE)和经食管超声心动描记术 (TEE)评价房颤栓塞危险性的价值。 方法 对 10 6例心房颤动患者同时进行TTE和TEE检查 ,根据TEE检查结果分为血栓阳性组和血栓阴性组。对两组间左房自发性超声显影 (leftatrialspontaneousechocontrast,LASEC)的严重程度 ,LA内径 ,LVd ,LVs ,FS和二尖瓣瓣口面积等进行比较。 结果 10 6例中经TEE检查发现 14个血栓 ,而TTE检查仅发现 4个血栓 ,两组间LASEC的严重程度、LA内径、二尖瓣瓣口面积均有显著性差异。相关分析显示LASEC与LA内径呈显著正相关 ,与二尖瓣瓣口面积显著负相关。 结论 TEE对于房颤患者血栓的检测及栓塞危险性的评估较TTE更有优势 ,LASEC分级、LA内径、二尖瓣瓣口面积可作为房颤患者左房血栓形成的预示因子。
Objective To evaluate the value of transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE) in evaluating the risk of atrial fibril embolism. Methods TTE and TEE were performed in 106 patients with atrial fibrillation. According to TEE results, they were divided into thrombus positive group and thrombus negative group. The severity of leftatrialspontaneousechocontrast (LASEC), LA diameter, LVd, LVs, FS and mitral valve area were compared between the two groups. Results Of the 10 cases, 14 thrombi were detected by TEE and only 4 thrombi were detected by TTE. The severity of LASEC, LA diameter and mitral valve area were significantly different between the two groups. Correlation analysis showed that LASEC was significantly and positively correlated with LA inner diameter and significantly negatively correlated with mitral valve orifice area. Conclusion TEE is superior to TTE in detecting thrombus and embolism risk in patients with atrial fibrillation. LASEC classification, LA diameter, and mitral valve area may be used as predictors of left atrial thrombi in patients with atrial fibrillation.