呼吸机波形分析简介（压力和容积-时间曲线）

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/1e74e2ada54be922b0dc98181dab60fc_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section><p>压力和容积-时间曲线</p></section><p><img src="image/20201019/79d2ea326e733737d9528d544eb3bbc5_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/cfd9aa113422ed80cecfd76d290744e6_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 图中A/C通气时的容积和压力。注意容积和压力同时上升。一个轻微的负压力偏转提示病人触发的呼吸。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/7ba51165e0808dbb3337c27e536b6c9e_4.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 图中SIMV时的容积和压力改变。小的压力波动和同时出现的容积改变提示自主呼吸A。在压力上升之前发生的负压偏转提示病人触发的呼吸。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/cf039371aaa37ed0a9cca512aa367b19_5.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;在自主呼吸时的容积和压力改变。小的压力和容积波动（A和B）提示自主呼吸。每次呼吸容积的不均等是自主呼吸的特征。</p><p>注：如果呼吸机的流量触发是激活的，那么在吸气期间会有小的负压偏转。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/005277c79c51dcd625e7553ef6d11861_6.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;图中在压力支持时的容积和压力。注意在病人吸气时间和吸气努力改变时容积的相应变化。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/2eb2577103ec4819ed2936488854c758_7.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;图中在压力控制通气时的容积和压力，因为设置了吸气时间，目标压力得以维持，在容积曲线上出现特征性的平台。这是因为此时吸气流速达到0点。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/27561abab5fbf067159371bf20728d07_8.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;图中双水平通气的压力和容积，在PEEP<span>H</span>（A）和PEEP<span>L</span>（B）伴有自主呼吸。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/a2cc1eae53f377f6b3793602427cf8a7_9.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 图中APRV时的容积和压力，在PEEP<span>H</span>发生了自主呼吸。</p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p>欢</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>迎</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>注</p></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><img src="image/20201019/d3a5e4bb2495caacb4c29d05f2cee7f1_10.jpg" /></p></section></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section></section></section></section></section>