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• W2943347739 abstract "Objectives Sizing of the aortic valve is crucial for transcatheter aortic valve replacement (TAVR). Multidetector computed tomography (MDCT) is used for sizing. Recently, three-dimensional transesophageal echocardiography (3DTEE) has enabled accurate measurement of the aortic annulus area and diameter in cases that are difficult to measure. The authors compared measurements of aortic annulus areas and diameters acquired by MDCT and 3DTEE. Design Retrospective observational study. Setting Single national center. Participants Sixty-eight patients who underwent TAVR replacement between September 2015 and March 2017. Interventions None. Measurements and Main Results The authors extracted and compared preoperative measurements of the aortic annulus area, as well as the long- and short-axis diameter, measured by MDCT and 3DTEE. There was no significant difference in the aortic annulus area (409 ± 74 v 414 ± 70 mm2, p = 0.15) or short-axis diameter (20.4 ± 2.0 v 20.6 ± 1.9 mm, p = 0.103) between 3DTEE and MDCT, but the long-axis diameter differed significantly (25.0 ± 2.4 v 25.8 ± 2.0 mm, p < 0.001), respectively. Prosthesis sizes based on 3DTEE and MDCT were the same, except in 3 patients who could not stay still during MDCT measurement; in those cases, prosthesis sizes based on 3DTEE were adopted. Conclusions Measurements of the aortic annulus area and diameter in TAVR were similar between 3DTEE and MDCT. Patients who have difficulty remaining still during MDCT measurement because of dementia should have their prostheses sized based on 3DTEE measurements. Sizing of the aortic valve is crucial for transcatheter aortic valve replacement (TAVR). Multidetector computed tomography (MDCT) is used for sizing. Recently, three-dimensional transesophageal echocardiography (3DTEE) has enabled accurate measurement of the aortic annulus area and diameter in cases that are difficult to measure. The authors compared measurements of aortic annulus areas and diameters acquired by MDCT and 3DTEE. Retrospective observational study. Single national center. Sixty-eight patients who underwent TAVR replacement between September 2015 and March 2017. None. The authors extracted and compared preoperative measurements of the aortic annulus area, as well as the long- and short-axis diameter, measured by MDCT and 3DTEE. There was no significant difference in the aortic annulus area (409 ± 74 v 414 ± 70 mm2, p = 0.15) or short-axis diameter (20.4 ± 2.0 v 20.6 ± 1.9 mm, p = 0.103) between 3DTEE and MDCT, but the long-axis diameter differed significantly (25.0 ± 2.4 v 25.8 ± 2.0 mm, p < 0.001), respectively. Prosthesis sizes based on 3DTEE and MDCT were the same, except in 3 patients who could not stay still during MDCT measurement; in those cases, prosthesis sizes based on 3DTEE were adopted. Measurements of the aortic annulus area and diameter in TAVR were similar between 3DTEE and MDCT. Patients who have difficulty remaining still during MDCT measurement because of dementia should have their prostheses sized based on 3DTEE measurements." @default.
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• W2943347739 date "2019-09-01" @default.
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• W2943347739 title "Measurement of the Aortic Annulus Area and Diameter by Three-Dimensional Transesophageal Echocardiography in Transcatheter Aortic Valve Replacement" @default.
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• W2943347739 doi "https://doi.org/10.1053/j.jvca.2019.04.025" @default.
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