Volume 39, Issue 10 pp. 1276-1283
ORIGINAL ARTICLE

Utility of the tricuspid annular tissue doppler systolic velocity and pulmonary artery systolic pressure relationship in right ventricular systolic function assessment: A pilot study

Angel López-Candales MD

Corresponding Author

Angel López-Candales MD

Cardiovascular Medicine Division, University Health Truman Medical Center, University of Missouri-Kansas City, Kansas City, Missouri, USA

Correspondence

Angel López-Candales MD, FACC, FASE, Cardiovascular Medicine Division, University Health Truman Medical Center, University of Missouri-Kansas City, 2301 Holmes Street, Kansas City, MO 64108, USA.

Email: [email protected]

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Srikanth Vallurupalli MD

Srikanth Vallurupalli MD

Cardiology Division, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA

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First published: 13 September 2022

Abstract

Background

Tricuspid annular plane systolic excursion (TAPSE) to pulmonary artery systolic pressure (PASP) ratio has been validated as a valuable noninvasive measure of right ventricular (RV) elastance and systolic function. However, the more reliable TA systolic (s’) velocity measure of RV systolic function compared to TAPSE has not been previously studied.

Methods

We conducted a pilot study using several variables of RV function in 50 patients with the main aim to determine which numerical expression between TA TDI s’/PASP and TAPSE/PASP ratio was most useful.

Results

In a stepwise multiple regression analysis, TA TDI s’/PASP ratio (p < .0002); LVOT VTI/RVOT VTI ratio (p < .0002); RVOT VTI (p < .0047); TAPSE/PASP ratio (p < .0259) and TA TDI e’ (p < .0292) were best in discriminating normal versus abnormal RV systolic function. Using receiver operator curve analysis, cut-off values for both TA TDI s’/PASP (>3.9 mm/c/mmHg) had 82.1% sensitivity and 77.3% specificity while the TAPSE/PASP (>.61 mm/mmHg) had 89.3% sensitivity and 68.2% specificity in identifying normal RV function in our studied population.

Conclusion

Our results indicate that TA TDI s’/PASP is a better mathematical expression when examining the relationship between RV contractility and RV resistance relationship. Furthermore, we also found that inclusion of RVOT VTI, RV diastolic properties, and left ventricular systolic function are important determinants of RV systolic function assessments and should be routinely included. Additional prospective studies are now needed to confirm these results using hemodynamic data.

CONFLICT OF INTEREST

The authors report no relationships that could be construed as a conflict of interest.

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