20xx年醫(yī)學(xué)專題—呼吸波形及環(huán)圖分析剖析-資料下載頁
2025-10-27 06:19本頁面
【正文】 l),Flow (L/min),Air Leak in mL,Normal Abnormal,第五十三頁，共六十三頁。,Paw (cm H2O),Normal PPlat (Normal Compliance),Increased PIP,},Increased PTA (increased Airway Resistance),Increased Airway Resistance,第五十四頁，共六十三頁。,Response to Bronchodilator,Before,Time (sec),Flow (L/min),PEFR,After,Long TE,Higher PEFR,Shorter TE,第五十五頁，共六十三頁。,Increased Airway Resistance,Inspiration,Expiration,Volume (ml),Flow (L/min),Decreased PEFR,Normal Abnormal,“Scooped out” pattern,第五十六頁，共六十三頁。,DECREASED COMPLIANCE,Time (sec),Paw (cm H2O),Normal PPlat (Normal Compliance),Increased PPlat (Decreased Compliance),Normal,PIP,第五十七頁，共六十三頁。,Lung Compliance Changes and the PV Loop,Volume (mL),Preset PIP,VT levels,Paw (cm H2O),COMPLIANCE Increased Normal Decreased,Pressure Targeted Ventilation,第五十八頁，共六十三頁。,Overdistension,Volume (ml),Pressure (cm H2O),,With little or no change in VT,Paw rises,Normal Abnormal,第五十九頁，共六十三頁。,Waveform Used During Mechanical Ventilation,autoPEEP bronchodilator response work of breathing Hyperexpansion adequacy of flow ventilator sensitivity Compliance leaks,第六十頁，共六十三頁。,Problems with Waveforms,數(shù)量趨勢(shì)很重要（Tend to be more qualitative than quantitative） 需要?jiǎng)討B(tài)觀察，而非作為治療或診斷的工具（We tend to look at them, but not use them as therapeutic or diagnostic tools） 一些波形的相關(guān)性尚未明確 需要大量文獻(xiàn)判定(p224。nd236。ng)他們的價(jià)值,第六十一頁，共六十三頁。,謝謝(xi232。 xie),第六十二頁，共六十三頁。,內(nèi)容(n232。ir243。ng)總結(jié),呼吸機(jī)波形分析 Ventilator Waveform Analysis。圖1 流速曲線（方波）機(jī)械呼吸。典型的呼出容量等于吸入容量，除非存在著漏氣。D至E點(diǎn)平臺(tái)壓力，需要擴(kuò)張肺泡的壓力。常見原因：氣道阻力增加（氣管內(nèi)黏液(ni225。ny232。)增加或分泌物聚集）。容量控制通氣時(shí)，容量恒。主要特點(diǎn)： “assisted” 意指病人觸發(fā)。Flowtime curve 中自主呼吸呈典型的。估算吸氣相面積和吸氣觸。謝謝,第六十三頁，共六十
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