发病机制( Pathogenesis 2.心脏病变( heart diseases)和心力衰竭 (heart failure) 肺动脉高压 心肌缺氧 酸碱平衡失调发病机制（Pathogenesis) 2. 心脏病变(heart diseases)和心力衰竭 (heart failure) ➢ 肺动脉高压 ➢ 心肌缺氧 ➢ 酸碱平衡失调