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特发性心房颤动原因不明，本文应用多普勒超声心动图检查方法，旨在评价其左室结构和功能的变化，发现其左心室舒张功能减退，提示左心室舒张功能减退可能与特发性心房颤动的致病因素有关。
Idiopathic atrial fibrillation for unknown reasons, the application of Doppler echocardiography to assess the changes in left ventricular structure and function and found that left ventricular diastolic dysfunction, suggesting that left ventricular diastolic dysfunction may be associated with idiopathic Atrial fibrillation related to the risk factors.