OP-159 Reproducibility of Pulmonary Accelaration Time in Patient with Pulmonary Hypertension




The traditional way to calculate pulmonary artery pressure is measuring tricuspid regurgitant velosity (TRV) and estimated right atrial pressure (eRAP). Moreover, the reproducibility of this method is clearly good. In patients with no visible TR, pulmonary acceleration time (PAT) and PAP esitamed from PAT might be used. However, the reproducibility of PAT were not studied largely. Therefore, in this study we aimed to test the reproducibility of PAT and estimated PAP from PAT in patients with pulmonary hypertension.


Method


We consisted of 20 pulmonary hypertension patients in this study. We measured PAT and estimated mean PAP and PVR from PAT (meanPAP=79-PAT*0.45 and PVR=-0.156*1.14(PAT/ET)/TT). All measurements were performed by two independant cardiologist for interobserver agreement. Also, one of the observer performed all measurements 2 weeks later for intraobserver agreemnt. Bland-Altman analysis was used toassess interobserver agrement and intraclass corelation coefficient (ICC) was used to assess intraobserver agrement.

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Nov 30, 2016 | Posted by in CARDIOLOGY | Comments Off on OP-159 Reproducibility of Pulmonary Accelaration Time in Patient with Pulmonary Hypertension

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