文章基本信息

标题：Is End-tidal Carbon Dioxide Tension Useful to Predict Arterial Carbon Dioxide Tension during One Lung Ventilation? - A Comparison with during Two Lung Ventilation
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作者：Jin, Hee Cheol ; Seo, Jae Won ; Kim, Sang Hyun 等
期刊名称：Korean Journal of Anesthesiology
印刷版ISSN：2005-6419
出版年度：2008
卷号：54
期号：6
页码：609-613
DOI：10.4097/kjae.2008.54.6.609
语种：Korean
出版社：The Korean Society of Anesthesiologists,
摘要：Background
End-tidal carbon dioxide tension (P_ETCO₂) is widely used to estimate arterial carbon dioxide tension (PaCO₂) under various clinical conditions. This study was conducted to determine if P_ETCO₂ during one lung ventilation (OLV) is as useful as P_ETCO₂ during two lung ventilation (TLV) for predicting PaCO₂.
Methods
Forty patients undergoing thoracic surgery were enrolled in this study. During OLV (n = 20) and TLV (n = 20), PaCO₂ and P_ETCO₂ were measured. The arterial-end tidal carbon dioxide difference (Pa-_ETCO₂) was then calculated and a correlation between PaCO₂ and P_ETCO₂ was evaluated during OLV and TLV.
Results
Pa-_ETCO₂ was significantly higher during OLV (8.9 ± 5.1 mmHg) than during TLV (6.1 ± 3.9 mmHg). In addition, the correlation between P_ETCO₂ and PaCO₂ was less significant during OLV (R² = 0.43) than during TLV (R² = 0.59).
Conclusions
P_ETCO₂ during OLV was not as accurate as P_ETCO₂ during TLV for predicting PaCO₂, which indicates that greater attention should be given to the maintenance of normocarbia during OLV than during TLV.
关键词：arterial-end tidal carbon dioxide difference; end tidal carbon dioxide tension; one lung ventilation