Abnormal Left Ventricular Diastolic Filling in Chronic Thromboembolic Pulmonary Hypertension : True Diastolic Dysfunction or Left Ventricular Underfilling?

ObjectivesThe purpose of this study was to investigate the cause of abnormal left ventricular (LV) Doppler diastolic filling characteristics in chronic thromboembolic pulmonary hypertension (CTEPH).BackgroundIn CTEPH, LV diastolic function often appears abnormal. It is unclear whether this “impaired relaxation” (E