Mason K P, Burrows P E, Dorsey M M, Zurakowski D, Krauss B
Department of Anesthesiology, Children's Hospital and Harvard Medical School, Boston, MA 02115, USA.
J Clin Monit Comput. 2000;16(4):259-62. doi: 10.1023/a:1011436329848.
We tested the accuracy of a low flow (50 cc/min) sidestream capnography system equipped with an experimental 30-foot nasal cannula to monitor ventilatory status in children. End-tidal CO2 and respiratory rate, both at room air and in the presence of supplemental oxygen, were recorded simultaneously from the experimental 30-foot nasal cannula and the standard, FDA approved, 10-foot nasal cannula. The 30-foot nasal cannula was as accurate as the 10-foot nasal cannula in measuring respiratory rate and end-tidal CO2 in children. When supplemental oxygen was delivered by face-mask, there was no dilutional effect on the respiratory rate or end-tidal CO2 recorded with either the 10-foot or 30-foot nasal cannulas in place.
我们测试了配备实验性30英尺鼻导管的低流量(50毫升/分钟)旁流二氧化碳监测系统监测儿童通气状态的准确性。在室内空气环境以及补充氧气的情况下,同时记录来自实验性30英尺鼻导管和经美国食品药品监督管理局批准的标准10英尺鼻导管的呼气末二氧化碳和呼吸频率。30英尺鼻导管在测量儿童呼吸频率和呼气末二氧化碳方面与10英尺鼻导管一样准确。当通过面罩输送补充氧气时,对于使用10英尺或30英尺鼻导管记录的呼吸频率或呼气末二氧化碳均无稀释作用。