Muhe L
Department of Paediatrics and Child Health, Faculty of Medicine, Addis Ababa University, Addis Ababa.
Ethiop Med J. 2000 Jan;38(1):55-65.
Oxygen administration is one of the most important modalities of therapy for a patient with hypoxaemia to prevent death and disability from common conditions such as acute lower respiratory tract infections. Oxygen needs to be available at all times in hospitals, however, it is too expensive for many developing countries. There is little information for health professionals regarding indications for initiating oxygen therapy, selecting appropriate method of oxygen administration and deciding on the source for oxygen. A review of the literature using medline citations and cross references from published articles and other manuscripts was made. The review described the two main sources of oxygen for small hospital-cylinders and oxygen concentrators and their advantages and disadvantages. It also looked at the evidences for clinical indications to initiate and discontinue oxygen therapy. Studies on efficient and safe methods of administration of oxygen were reviewed as well. The review concluded that oxygen may be administered in children with cyanosis, chest indrawing, inability to drink or breastfeed, tachypnea with respiratory rate above 70/minute or in a child who develops restlessness and improves on oxygen. The initial capital cost of concentrators is high but the running cost is low and it does not require transport while oxygen cylinders are expensive to transport and need continuous refilling. The safest method of oxygen administration are the prongs followed by the nasal catheters.
给低氧血症患者输氧是最重要的治疗方式之一,可预防因急性下呼吸道感染等常见病症导致的死亡和残疾。医院需要随时提供氧气,然而,对许多发展中国家来说,这太昂贵了。关于启动氧疗的指征、选择合适的输氧方法以及确定氧气来源,卫生专业人员掌握的信息很少。我们使用医学文献数据库(Medline)的引文以及已发表文章和其他手稿的交叉参考文献对文献进行了综述。该综述描述了小型医院使用的两种主要氧气来源——氧气瓶和制氧机,以及它们的优缺点。还研究了启动和停止氧疗的临床指征证据。同时也综述了高效安全的输氧方法研究。综述得出结论,对于出现发绀、胸壁凹陷、无法饮水或母乳喂养、呼吸频率超过70次/分钟的呼吸急促的儿童,或出现烦躁不安且吸氧后症状改善的儿童,可进行输氧。制氧机的初始投资成本高,但运行成本低,且无需运输,而氧气瓶运输成本高且需要持续充装。最安全的输氧方法是使用吸氧管,其次是鼻导管。