Skip Navigation

This Article
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 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 arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by LAWES, E. G.
Right arrow Articles by THOMAS, T. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by LAWES, E. G.
Right arrow Articles by THOMAS, T. A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

British Journal of Anaesthesia, 1988, Vol. 61, No. 3 250-254
© 1988 The Board of Management and Trustees of the British Journal of Anaesthesia

research-article

MATERNAL INSPIRED OXYGEN CONCENTRATION AND NEONATAL STATUS FOR CAESAREAN SECTION UNDER GENERAL ANAESTHESIA

Comparison of Effects of 33% or 50% Oxygen in Nitrous Oxide

E. G. LAWES, M.B., B.S., F.F.A.R.C.S.*, B. NEWMAN, M.B., CH.B., F.F.A.R.C.S., M. J. CAMPBELL, B.A., PH.D., M. IRWIN, M.B., CH.B., DIP.OBST., S. DOLENSKA, L.M.S.S.A., M.D. and T. A. THOMAS, M.B., CH.B., F.F.A.R.C.S.

Sir Humphry Davy, Department of Anaesthetics Bristol Royal Infirmary Bristol

*Present address, for correspondence: Shackleton Department of Anaesthetics, Southampton General Hospital, Southampton SO9 4XY.

The relationship between maternal F1O2 and umbilical venous PO2, PCO2, pH and neonatal Apgar and TSR (time to sustained respiration) scores was studied in 35 patients undergoing Caesarean section under general anaesthesia. Patients were allocated randomly to breathe an FlO2 of either 0.5 or 0.33. Umbilical venous blood was collected at the time of delivery, and TSR and 1- and 5-min Apgar scores recorded. Mean values for umbilical venous blood were: PO2 3.9 kPa and 3.7 kPa; PC02 6.2 kPa and 6.2 kPa; pH 7.30 and 7.31 (50% and 33% groups, respectively (P > 0.05)). No differences were found between groups for 1- or 5-min Apgar scores or TSR values. It is concluded that no difference in fetal outcome or acid-base status can be detected when maternal FIO2 is decreased from 0.5 to 0.33, and that the use of 33% oxygen in 66% nitrous oxide appears to be safe for neonates who have not suffered fetal distress before delivery.


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
 Anesth. Analg.Home page
K. Robins and G. Lyons
Intraoperative Awareness During General Anesthesia for Cesarean Delivery
Anesth. Analg., September 1, 2009; 109(3): 886 - 890.
[Abstract] [Full Text] [PDF]

Home page
 Br J AnaesthHome page
W. D. Ngan Kee, K. S. Khaw, K. C. Ma, A. S. Y. Wong, and B. B. Lee
Randomized, double-blind comparison of different inspired oxygen fractions during general anaesthesia for Caesarean section{dagger}
Br. J. Anaesth., October 1, 2002; 89(4): 556 - 561.
[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.