Skip Navigation

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow E-Letters: Submit a response to the article
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
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 Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (10)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Griffin, J.
Right arrow Articles by Tobias, J. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Griffin, J.
Right arrow Articles by Tobias, J. D.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

British Journal of Anaesthesia, 2003, Vol. 91, No. 4 498-501
© 2003 The Board of Management and Trustees of the British Journal of Anaesthesia

Clinical Investigations

Comparison of end-tidal and transcutaneous measures of carbon dioxide during general anaesthesia in severely obese adults

J. Griffin1, B. E. Terry2, R. K. Burton1, T. L. Ray1, B. P. Keller1, A. L. Landrum1, J. O. Johnson1 and J. D. Tobias*,1

Departments of 1 Anesthesiology and 2 Surgery, The University of Missouri, Columbia, Missouri, USA

Corresponding author. E-mail: tobiasj@health.missouri.edu

Background. Patients with severe obesity (body mass index (BMI) greater than 35 kg m–2) present difficulties for end-tidal carbon dioxide (FE'CO2) monitoring. Previous studies suggest that transcutaneous (TC) carbon dioxide measurements could be valuable, so we compared FE' and TC measures with PaCO2 in severely obese patients during anaesthesia.

Methods. We studied patients with severe obesity (BMI >=40 kg m–2) undergoing gastric bypass surgery. Carbon dioxide was measured with both FE' and TC devices. The difference between each measure (FE'CO2 and TC-CO2) and the PaCO2 was averaged for each patient to provide one value, and data compared with a non-paired, two-way t-test, Fisher’s exact test.

Results. We studied 30 adults (aged 18–54 yr, mean 41, SD 8.0 yr; weight: 115–267 kg, mean 162, SD 35 kg). The absolute difference between the TC-CO2 and PaCO2 was 0.2 (0.2) (mean, SD) kPa while the absolute difference between the FE'CO2 and PaCO2 was 0.7 (0.4) kPa (P<0.0001). The bias and precision were +0.1 (0.3) kPa for TC vs arterial carbon dioxide and –0.7 (0.4) kPa for FE' vs arterial carbon dioxide.

Conclusions. Transcutaneous carbon dioxide monitoring provides a better estimate of PaCO2 than FE'CO2 in patients with severe obesity.

Br J Anaesth 2003; 91: 498–501


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ChestHome page
A. Cuvelier, B. Grigoriu, L. C. Molano, and J.-F. Muir
Limitations of Transcutaneous Carbon Dioxide Measurements for Assessing Long-term Mechanical Ventilation
Chest, May 1, 2005; 127(5): 1744 - 1748.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.