Feasibility of a new method using two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantation; a case–control study

BMC Cardiovascular Disorders

Research Article

Christian Praast¹  Ruediger Christian Braun-Dullaeus¹  Joerg Herold¹  Octavian Maniuc²  Mohammad A. Sherif²  Georg Ertl²  Wolfram Voelker² 

[1] Cardiology Department, Magdeburg University Clinic, Magdeburg, Germany;Cardiology Department, Wuerzburg University Clinic, Oberduerrbacher Street 6, 97080, Wuerzburg, Germany;

关键词: TAVI;    Sizing;    Echocardiography;   

DOI  :  10.1186/s12872-015-0072-7

 received in 2015-03-20, accepted in 2015-07-21,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundAccurate preoperative assessment of the aortic annulus dimension is crucial for successful transcatheter aortic valve implantation (TAVI). In this study we validated a new method using two-dimensional transesophageal echocardiography (2D-TEE) for measurement of the aortic annulus prior to TAVI.MethodsWe analysed 124 patients who underwent successful TAVI using a self-expandable prosthesis, divided equally into two groups; in the study group we used the cross sectional short axis 2D-TEE for measurement of the aortic annulus and in the control group we used the long axis 2D-TEE.ResultsBoth groups were comparable regarding the clinical parameters. On the other hand, patients in the study group had less left ventricular ejection fraction (38.9 % versus 45.6 %, p = 0.01). The aortic valve annulus was, although not statistically significant, smaller in the study group (21.58 versus 23.28 mm, p = 0.25).Post procedural quantification of the aortic regurgitation revealed that only one patient in both groups had severe aortic regurgitation (AR), in this patient the valve was implanted deep. The incidence of significant AR was higher in the control group (29.0 % versus 12.9 %, p = 0.027).ConclusionsSizing of the aortic valve annulus using cross-sectional 2D-TEE offers a safe and plausible method for patients undergoing TAVI using the self-expandable prosthesis and is significantly superior to using long axis 2D-TEE.

【 授权许可】

CC BY   
© Sherif et al. 2015