摘要
Background An echocardiographic right/left ventricular end-diastolic diameter ratio （RV/LV ratio） 〉0.9 is an independent predictor of poor prognosis in patients with acute pulmonary embolism. Right ventricular dilation is a common characteristic of both acute pulmonary embolism and idiopathic pulmonary arterial hypertension （IPAH）. However, the prognostic value of the RV/LV ratio in patients with IPAH is unknown. Methods Ninety-five consecutive patients with newly diagnosed IPAH were included, 17 were re-evaluated by echocardiography after 3-12 months of targeted therapy, Follow-up data were obtained by telephone interviews and review of the patients＇ records.
Background An echocardiographic right/left ventricular end-diastolic diameter ratio （RV/LV ratio） 〉0.9 is an independent predictor of poor prognosis in patients with acute pulmonary embolism. Right ventricular dilation is a common characteristic of both acute pulmonary embolism and idiopathic pulmonary arterial hypertension （IPAH）. However, the prognostic value of the RV/LV ratio in patients with IPAH is unknown. Methods Ninety-five consecutive patients with newly diagnosed IPAH were included, 17 were re-evaluated by echocardiography after 3-12 months of targeted therapy, Follow-up data were obtained by telephone interviews and review of the patients＇ records.
