TEE结合2D-STI技术探讨房颤患者左心耳功能与射频消融术后房颤复发的关系

doi:10.12117/jccmi.2020.05.006

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Abstract Objective: Transesophageal echocardiography(TEE) is used to investigate the relationships between left atrial appendage(LAA) function and the recurrence of atrial fibrillation(AF) in patients after radiofrequency ablation. Methods: Sixty-eight AF patients were selected. All patients were examined by TEE, 24~48 h before radiofrequency ablation, 24~48 h after radiofrequency ablation, and 3 months after radiofrequency ablation. According to the recurrence of AF, patients were divided into sinus rhythm group(group A) and AF recurrence group(group B). Having measured the LAA flow filling velocity and emptying velocity(LAA-Fv, LAA-Ev), LAA maximum diameter(LAA-D), LAA maximum length(LAA-L), LAA ejection fraction(LAA-EF) and LAA systolic strain rate(LAA-Ssr). Compared the differences in each group and analyzed the relationships between the function of LAA and the recurrence of AF after radiofrequency ablation by logistic regression. Results: Compared with preoperation: There were no significant changes in LAA-Fv, LAA-Ev, LAA-EF, LAA-Ssr, LAA-L and LAA-D 24~48 h after operation(all P>0.05); 3 months later, LAA-Ev, LAA-Fv, LAA-EF, LAA-Ssr were significantly higher and LAA-D was significantly lower in group A(51 patients)(all P<0.05); LAA-Ev, LAA-Fv, LAA-EF, LAA-Ssr and LAA-D were significantly lower and LAA-D was significantly larger in group B(17 patients)(all P<0.05), and spontaneous echo contrast(SEC) were found in 4 patients’s LAA in group B. Logistic regression analysis showed that LAA-Ev, LAA-Fv, LAA-EF and LAA-Ssr were predictors of AF recurrence. The area under the ROC curve of LAA-Ev, LAA-Fv, LAA-EF and LAA-Ssr were 0.864, 0.817, 0.803 and 0.887. Conclusion: LAA-Ev, LAA-Fv, LAA-EF and LAA-Ssr can be used as predictors of AF recurrence to evaluate the prognosis of patients after radiofrequency ablation, and the predictive effect of LAA-Ssr is better.

Key words： Atrial fibrillation Catheter ablation Echocardiography, transesophageal

Received: 07 August 2019

PACS:	Ｒ541.75
	Ｒ540.45

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	Articles by authors
	JIANG Wei
	LIU Jie
	SUN Wei
	DING Ying

Cite this article:

JIANG Wei,LIU Jie,SUN Wei, et al. The relationships between left atrial appendage function and the recurrence of atrial fibrillation in patients after radiofrequency ablation by TEE and 2D-STI technique[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2020, 31(5): 330-333.

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http://www.jccmi.com.cn/EN/10.12117/jccmi.2020.05.006 OR http://www.jccmi.com.cn/EN/Y2020/V31/I5/330

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