Echo-Doppler measures of right ventricular systolic function are affected by reduced left ventricular systolic function.
TAPSE
TAPSE/PASP ratio
TAPSE/PVR ratio
echo-Doppler imaging
left ventricular function
pulmonary vascular resistance
right ventricular function
Journal
Echocardiography (Mount Kisco, N.Y.)
ISSN: 1540-8175
Titre abrégé: Echocardiography
Pays: United States
ID NLM: 8511187
Informations de publication
Date de publication:
12 2022
12 2022
Historique:
revised:
04
10
2022
received:
01
08
2022
accepted:
19
10
2022
pubmed:
27
11
2022
medline:
15
12
2022
entrez:
26
11
2022
Statut:
ppublish
Résumé
Objective right ventricular (RV) systolic function assessment is attained using a series of well-described and validated echo-Doppler measurements. However, how left ventricular (LV) systolic function influences these RV functional measurements has not been previously studied. Consequently, we conducted a retrospective proof-of-concept analysis to answer this important question. A total of 100 echocardiographic studies were included and patients were divided into two groups according to their LV ejection fraction (LVEF). The following RV variables were acquired including, tricuspid annular systolic plane excursion (TAPSE), velocity of the systolic motion (TA TDI s'), RV outflow tract velocity time integral (VTI), pulmonary vascular resistance (PVR), and the TAPSE to pulmonary artery systolic pressure (PASP) ratio. Not only TAPSE, TA DI s', RVOT VTI, PVR, and TAPSE/PASP were all significantly different between patients with normal versus abnormal LVEF; but most importantly, RVOT VTI (p < .0001) was the best discriminatory variable in assessing normal versus abnormal LVEF followed by TAPSE (p = .0001). Using receiver operating characteristic curve analysis, an RVOT VTI value > 11 identified patients with a normal LVEF with a sensitivity of 90% and specificity of 76%. Based on our results, reduced LVEF affects the RV, likely mediated by mechanisms of interventricular dependence. Therefore, RV analysis cannot be performed in isolation as it not only reflects intrinsic RV systolic function but also, is dependent on LV systolic function. In cases of reduced LVEF, additional measures of RV assessment should be used to provide better objective assessments.
Sections du résumé
BACKGROUND
Objective right ventricular (RV) systolic function assessment is attained using a series of well-described and validated echo-Doppler measurements. However, how left ventricular (LV) systolic function influences these RV functional measurements has not been previously studied. Consequently, we conducted a retrospective proof-of-concept analysis to answer this important question.
METHODS
A total of 100 echocardiographic studies were included and patients were divided into two groups according to their LV ejection fraction (LVEF). The following RV variables were acquired including, tricuspid annular systolic plane excursion (TAPSE), velocity of the systolic motion (TA TDI s'), RV outflow tract velocity time integral (VTI), pulmonary vascular resistance (PVR), and the TAPSE to pulmonary artery systolic pressure (PASP) ratio.
RESULTS
Not only TAPSE, TA DI s', RVOT VTI, PVR, and TAPSE/PASP were all significantly different between patients with normal versus abnormal LVEF; but most importantly, RVOT VTI (p < .0001) was the best discriminatory variable in assessing normal versus abnormal LVEF followed by TAPSE (p = .0001). Using receiver operating characteristic curve analysis, an RVOT VTI value > 11 identified patients with a normal LVEF with a sensitivity of 90% and specificity of 76%.
CONCLUSION
Based on our results, reduced LVEF affects the RV, likely mediated by mechanisms of interventricular dependence. Therefore, RV analysis cannot be performed in isolation as it not only reflects intrinsic RV systolic function but also, is dependent on LV systolic function. In cases of reduced LVEF, additional measures of RV assessment should be used to provide better objective assessments.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1540-1547Informations de copyright
© 2022 Wiley Periodicals LLC.
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