急性左心衰竭有哪些平常的临床表现？
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<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">急性左心衰最典型的症状为突发严重<span style="color: black;">呼气</span>困难、端坐<span style="color: black;">呼气</span>、咳<span style="color: black;">海量</span>粉红色<span style="color: black;">泡泡</span>样痰。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">急性左心衰定义是急性<span style="color: black;">爆发</span>或急性加重的左心室收缩能力<span style="color: black;">显著</span>降低，<span style="color: black;">导致</span>急性心排量骤降，左心房及左心室内压力<span style="color: black;">显著</span><span style="color: black;">上升</span>，肺循环压力<span style="color: black;">忽然</span><span style="color: black;">上升</span>，肺循环充血而<span style="color: black;">引起</span>急性肺淤血、肺水肿，<span style="color: black;">因为</span>左心射血量<span style="color: black;">显著</span>减少，可<span style="color: black;">引起</span><span style="color: black;">要紧</span>组织器官灌注不足、<span style="color: black;">乃至</span>心源性休克。<span style="color: black;">都数</span><span style="color: black;">病人</span>合并有器质性心血管<span style="color: black;">疾患</span>，<span style="color: black;">亦</span>见于既往未<span style="color: black;">发掘</span>器质性心脏病，而此次急性左心衰<span style="color: black;">爆发</span><span style="color: black;">由于</span>新发急性心肌梗死<span style="color: black;">导致</span>。急性左心衰竭临床起病急、<span style="color: black;">发展</span>快，症状可见严重<span style="color: black;">呼气</span>困难、咳嗽、咳粉红色<span style="color: black;">泡泡</span>样痰，强迫坐位、大汗、两肺底可听到水泡音等。<span style="color: black;">倘若</span>处理不<span style="color: black;">即时</span>，病情会急剧加重，可<span style="color: black;">快速</span><span style="color: black;">出现</span>心源性休克、<span style="color: black;">晕倒</span>、恶性<span style="color: black;">心率</span>失常而<span style="color: black;">引起</span>死亡。</p>
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