Why the study?
Echocardiographic estimation of pulmonary hypertension in the absence of tricuspid regurgitation remains challenging.
Does right ventricular isovolumic relaxation time (RV IVRT) measured by tissue Doppler imaging accurately predict elevated systolic pulmonary artery pressure in patients suspected or known to have pulmonary hypertension?
Does right ventricular isovolumic relaxation time (RV IVRT) measured by tissue Doppler imaging accurately predict elevated systolic pulmonary artery pressure in patients suspected or known to have pulmonary hypertension?
Right ventricular isovolumic relaxation time measured by tissue Doppler imaging is a feasible and accurate echocardiographic parameter for estimating elevated systolic pulmonary artery pressure, offering a useful screening tool especially when tricuspid regurgitation is absent.
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IVRT may aid noninvasive sPAP screening when TR is absent; leaves open prospective validation before clinical adoption.
Arke et al. (2022) studied this question.
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