Left ventricular filling pressure in Tetralogy of Fallot: Correlation between invasive and noninvasive indices. (February 2020)

• Record Type: Journal Article
• Authors: Egbe, Alexander C.; Banala, Keerthana; Vojjini, Rahul; Jadav, Raja; Sufian, Mahir; Pellikka, Patricia A.; Ammash, Naser M.
• Is Part Of: IJC heart & vasculature. Volume 26(2020)
• Publication Date: 2020-02
• Subjects: Tetralogy of Fallot -- Left heart filling pressure -- Pulmonary artery wedge pressure -- Echocardiography; TOF Tetralogy of Fallot -- RV Right ventricle -- LV Left ventricle -- LVEDP Left ventricular end-diastolic pressure -- PAWP Pulmonary artery wedge pressure -- LAVI Left atrial volume index -- AUC Area under the curve -- E mitral valve early velocity -- DT Deceleration time -- e′ mitral annular tissue Doppler early velocity; Cardiovascular system -- Diseases -- Periodicals; Cardiovascular system -- Pathophysiology -- Periodicals; 616.1005
• DOI: 10.1016/j.ijcha.2019.100457
• Languages: English
• ISSNs: 2352-9067

Abstract

Abstract: Background: Left heart filling pressures, as measured by pulmonary artery wedge pressure (PAWP), is associated with heart failure related mortality. Because of the prognostic importance of PAWP, several echocardiographic indices have been proposed for noninvasive assessment of PAWP. However, these indices have not been validated in the congenital heart disease population. The purpose of this study was to determine the correlation between echocardiographic indices of PAWP, and the effect of high PAWP on transplant-free survival in adults with tetralogy of Fallot (TOF). Methods: Retrospective study of adult TOF patients that underwent cardiac catheterization at Mayo Clinic, 1990–2017. We selected these pre-defined set of echocardiographic indices of LV diastolic function: mitral valve early velocity (E), mitral valve early and late velocity ratio (E/A), mitral valve deceleration time (DT), mitral annular tissue Doppler early velocity (e′), and left atrial volume index (LAVI). Results: Of the echocardiographic indices analyzed among 213 patients (age 37 ± 14 years), only E velocity (β = 5.83, standard error = 1.52, p < 0.001) and LAVI (β = 0.14, standard error = 0.05, p = 0.007) correlated with PAWP. LAVI > 28 ml/m 2 had sensitivity of 79% and specificity of 63% (AUC 0.712), and E velocity > 1.0 m/s had sensitivity of 66% and specificity of 89% (AUC 0.692), for detecting PAWP > 15 mmHg. LAVI > 28 ml/m 2 was associated with reduced 10-year transplant-free survival (49% vs 90%, p < 0.001). Conclusion: This study supports the use of LAVI for noninvasive assessment of PAWP and for prognostication. Further studies are required to validate these results in a different population.