Use of heliox in critical upper airway obstruction. Physical and physiologic considerations in choosing the optimal helium:oxygen mix |
| |
| Authors: | Ho Anthony M H Dion Peter W Karmakar Manoj K Chung David C Tay Beng A |
| |
| Affiliation: | Department of Anaesthesia and Intensive Care, Faculty of Medicine, Prince of Wales Hospital Shatin, The Chinese University of Hong Kong, NT, Shatin, Hong Kong. hoamh@hotmail.com |
| |
| Abstract: | ![]()
Heliox has a lower density than oxygen and nitrogen, and can improve ventilation rapidly in patients with critical upper airway obstruction. The choice of the best helium:oxygen ratio depends on whether the predominant problem is hypercarbia or hypoxia. In the former situation, 80% helium should be used, and in the latter, 100% oxygen is appropriate. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
