Analysis of the evaluation value of three-dimensional transesophageal echocardiography on the structure and function of the left atrial appendage in patients with different types of atrial fibrillation
Objective To explore the value of three-dimensional transesophageal echocardiography(3DTEE)on the structure and function of the left atrial appendage(LAA)in patients with different types of atrial fibrillation(AF).Methods 129 patients with AF were selected as the study subjects,and the patients were categorized into the persistent AF group(n=98)and the long-term persistent AF group(n=31)according to the types of AF.All patients underwent 3DTEE to compare the lobulations of the LAA,each diameters[LAA opening long diameter(LAA-D1),LAA opening short diameter(LAA-D2)],and functional parameters[LAA end-systolic volume(LAA-ESV),LAA end-diastolic volume(LAA-EDV),LAA ejection fraction(LAA-EF),LAA peak strain(LAA-S)];the receiver operating characteristic(ROC)curves were plotted to analyze the diagnostic efficacy of 3DTEE parameters in patients with different types of AF.Results There were 10,52,27,and 9 cases of single-lobed,2-lobed,3-lobed,and 4-lobed LAA in the persistent AF group,and 3,18,6,and 4 cases of single-lobed,2-lobed,3-lobed,and 4-lobed LAA in the long-term persistent AF group;there was no significant difference in comparison of LAA lobulation between the two groups(P>0.05).There was no significant difference in comparison of LAA-D1 and LAA-D2 between the two groups(P>0.05).LAA-ESV of(3.17±0.88)ml and LAA-EDV of(5.43±1.48)ml in the long-term AF group were greater than(2.84±0.59)and(4.87±1.15)ml in the persistent AF group;LAA-EF of(37.74±5.13)%and LAA-S of(11.75±2.08)in the long-term AF group were lower than(41.97±5.28)%and(14.66±2.12)in the persistent AF group(P<0.05).ROC curve analysis results showed that the area under the curve(AUC)of LAA-S was the highest(0.812),and the sensitivity and specificity were 83.87%and 72.45%;the AUC of LAA-EDV was the lowest(0.500),and the sensitivity and specificity were 38.71%and 78.57%.Conclusion 3DTEE can evaluate the structure and function of the LAA in patients with different types of AF,and LAA-S shows good diagnostic efficacy in different types of AF,which can be used for clinical promotion.
万方数据
维普
