JOURNAL HOME CME HOME THIS MONTH PAST ISSUES ETOC COLLECTIONS
AUTHORS REVIEWERS EDITORIAL BOARD FEEDBACK RSS HELP
A&A International Anesthesia Research Society
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a colleague
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Wei, W.
Right arrow Articles by Liu, J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wei, W.
Right arrow Articles by Liu, J.
Related Collections
Right arrow Cardiovascular
Right arrow Heart
Right arrow Monitoring (Cardiac)

Anesth Analg 2005;101:440-443
© 2005 International Anesthesia Research Society
doi: 10.1213/01.ANE.0000156949.91614.E9

TECHNOLOGY, COMPUTING, AND SIMULATION

A Pilot Study of Continuous Transtracheal Mixed Venous Oxygen Saturation Monitoring

Wei Wei, MM, Zhaoqiong Zhu, MB, Lunxu Liu, MD, Yunxia Zuo, MM, PhD, Min Gong, PhD, Fushan Xue, MD, and Jin Liu, MD

Departments of Anesthesiology and Cardiothoracic Surgery, West China Hospital, Sichuan University; Department of Physics, Sichuan University, Chengdu, Sichuan, P. R. China; and the Department of Anesthesia, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Beijing, P. R. China.

Address correspondence and reprint requests to Jin Liu, MD, Department of Anesthesiology, West China Hospital, Sichuan University. No 37, Guo-xue-xiang, Chengdu, Sichuan 610041, P. R. China. Address e-mail to wuliujin{at}china.com.

In this study, we investigated the feasibility and the accuracy of transtracheal mixed venous oxygen saturation (Svo2) monitoring. Ten patients undergoing thoracic surgery were included in this study. A single-use pediatric pulse oximetry sensor was attached to the double-lumen tube between the tracheal and bronchial cuff. After anesthesia was induced, the double-lumen tube was inserted into the trachea and adjusted to the proper position. During surgery, the pulmonary arterial blood was sampled every 3 min for 15 min to measure the Svo2. The measurements made by the transtracheal pulmonary pulse oximeter (Sto2) were recorded at the same time that blood was sampled from the pulmonary artery for Svo2 measurements. The levels of measurement agreement between the Sto2 and the Svo2 were analyzed using the Bland and Altman method. The mean ± sd (range) oxygen saturation values during the data collecting period were 82.0% ± 4.9% (72%–91%) for the Sto2 and 82.2% ± 5.5% (71%–91%) for the Svo2, respectively. The linear correlation coefficient of the regression analysis between the Sto2 and the Svo2 was 0.934 (P < 0.05). A 95% confidence interval for absolute difference between the Sto2 and the Svo2 was 1.58%–2.09%. The mean ± 2 sd difference between the Sto2 and the Svo2 was 0.12% ± 3.97% on the Bland and Altman graph. We conclude that it is feasible to monitor the pulmonary artery oxygen saturation continuously by a transtracheal pulse oximetry technique and that it can be done so accurately.






Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 2005 by the International Anesthesia Research Society.