If orthopnea causes awakening during the night and is relieved by sitting, it is called paroxysmal nocturnal dyspnea.
如果端坐呼
夜间觉醒，经坐缓解，是为阵发性夜间呼困难。
If orthopnea causes awakening during the night and is relieved by sitting, it is called paroxysmal nocturnal dyspnea.
如果端坐呼夜间觉醒，经坐缓解，是为阵发性夜间呼困难。
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