1. Evaluation of the relationship between ventricular end-diastolic pressure and echocardiographic measures of diastolic function in adults with a Fontan circulation.
- Author
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Cordina R, Ministeri M, Babu-Narayan SV, Ladouceur M, Celermajer DS, Gatzoulis MA, Uebing A, and Li W
- Subjects
- Adult, Echocardiography methods, Exercise Test methods, Exercise Test standards, Female, Heart Defects, Congenital physiopathology, Humans, Male, Retrospective Studies, Young Adult, Echocardiography standards, Fontan Procedure trends, Heart Defects, Congenital diagnostic imaging, Heart Defects, Congenital surgery, Stroke Volume physiology, Ventricular Pressure physiology
- Abstract
Background: Echocardiographic assessment of diastolic function in the setting of Fontan physiology is not well validated. We recently demonstrated that atrioventricular systolic to diastolic duration ratio (AVV S/D ratio) independently predicts mortality in Fontan-adults and that a value >1.1 was associated with poor prognosis., Purpose: To correlate echocardiographic measures of diastolic function with direct measurement of ventricular end-diastolic pressure (VEDP)., Methods: A retrospective analysis was undertaken of Fontan-adults who had transthoracic echocardiography (TTE) within 12 months of direct measurement of VEDP during cardiac catheterisation., Results: Fifteen Fontan adults (3 males, mean age 29 ± 9 years) were evaluated. Thirteen patients had dominant morphologic left ventricle and 2 had morphologic right ventricle. Four had atriopulmonary connection and 11 had total cavopulmonary connection. Twelve patients were NYHA Class I/II and 3 were Class III. Time between TTE and cardiac catheter was 46 ± 113 days; VEDP was 8 ± 5 mmHg. Ten patients had preserved ventricular function, 3 had mild and 2 had moderate systolic impairment by subjective TTE assessment. AVV S/D ratio had the strongest correlation with VEDP (r = 0.8, p = 0.001). AVV S/D ratio ≥ 1.1 had 100% positive predictive value and 92% negative predictive value for detecting VEDP >10 mmHg. The only conventional echocardiographic measure of diastolic function that correlated with VEDP was pulmonary vein A wave - atrioventricular A wave duration difference (r = 0.8, p = 0.02)., Conclusions: TTE measures reflect VEDP in adults with a Fontan circulation. AVV S/D ratio is a simple parameter yet to enter standard practice that can be used to identify elevated VEDP., (Crown Copyright © 2018. Published by Elsevier B.V. All rights reserved.)
- Published
- 2018
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