JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Feb 2009
Comparative StudyUtility of right ventricular Tei index in the noninvasive evaluation of chronic thromboembolic pulmonary hypertension before and after pulmonary thromboendarterectomy.
We evaluated the utility of tissue Doppler-derived right ventricular (RV) Tei (or myocardial performance) index in patients with chronic thromboembolic pulmonary hypertension (CTEPH) before and after pulmonary thromboendarterectomy (PTE) and assessed correlations with mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), and cardiac output (CO). ⋯ These results demonstrate a correlation between RV Tei index and right heart hemodynamics (particularly PVR) in CTEPH. Because PVR is difficult to estimate noninvasively -- and yet correlates with disease severity -- the RV Tei index may be a valuable noninvasive parameter for monitoring disease severity in CTEPH and outcome after PTE.