在慢性阻塞性肺病恶化期间,控制氧疗法和二氧化碳保留
Lancet (London, England)
|March 7, 2001
概括
患有慢性阻塞性肺病 (COPD) 恶化症的患者在受控氧气治疗期间面临二氧化碳 (CO2) 保留的风险较低. 即使是那些患有严重的头皮增大症的人也能很好地容忍低流量氧气,这表明在大多数情况下的安全性.
科学领域:
- 肺部医学 肺部医学
- 关键护理医学 关键护理医学
背景情况:
- 患有慢性阻塞性肺病 (COPD) 经历恶化症状的患者经常患有低氧血症,并且在氧气治疗期间有高头症的风险.
- 这项研究调查了在接受受控氧气治疗的患者中临床显著的二氧化碳 (CO2) 保留的发生率.
研究的目的:
- 量化二氧化碳 (CO2) 保留在低血量COPD患者接受控制氧气治疗在急性恶化期间的风险.
- 评估CO2保留在这个患者群体中的临床意义.
主要方法:
- 一项涉及24名连续患者的研究,这些患者呈现了COPD急性恶化和高卡普尼性呼吸衰竭.
- 通过Venturi口罩 (24-40%) 进行控制氧疗法,以保持氧和率在91-92%之间.
主要成果:
- 只有三名患者 (12.5%) 发生了临床显著的二氧化碳保留 (定义为PaCO2> 1kPa的增加).
- 这三名患者最初患有更严重的头增大,需要低流氧 (24-28%).
结论:
- 控制氧气补充在COPD恶化与超气呼吸衰竭的控制氧气补充具有加重超气的低风险.
- 仔细监测和控制的氧气输送是很重要的,特别是在患有严重头过高的患者中.
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