结论左心房增大与心房颤动有密切关系。
Conclusion The left atrium enlargement is related to atrial fibrillation.
甲减时，心率减慢、左心房增大、左心室心肌重量增高和短轴缩短率降低。
Slow heart rate, enlarged left atrium, increased left ventricular mass and decreased fractional shortening were detected in patients with hypothyroidism.
结果：X线平片显示肺血减少，右心房、左心室增大；
Result:Chest X-ray showed pulmonary oligemia, right atrial and left ventricular enlargement.
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