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Supplementary oxygen administration for elective Caesarean section under spinal anaesthesia
M S Cogliano1, A C Graham, V A Clark
1Simpson Memorial Maternity Pavilion, Royal Infirmary, Lauriston Place, Edinburgh EH3 9YW, UK.
Anaesthesia
|February 15, 2002
Summary
Supplementary oxygen is not necessary for mothers during elective Caesarean sections under spinal anesthesia. This study found no significant differences in infant blood gas levels across different oxygen administration methods.
Area of Science:
- Obstetrics and Gynecology
- Anesthesiology
- Neonatal Physiology
Background:
- Maternal oxygen administration during Caesarean sections is common practice.
- The necessity and optimal method for oxygen delivery in this context require investigation.
Purpose of the Study:
- To determine if supplementary oxygen is necessary for mothers undergoing elective Caesarean section under spinal anesthesia.
- To compare the effects of different oxygen delivery methods on neonatal blood gas parameters.
Main Methods:
- Randomized controlled trial involving 69 women undergoing elective Caesarean section.
- Three groups received: 40% oxygen by facemask, air by facemask, or 2 L/min oxygen by nasal cannulae.
- Umbilical arterial and venous blood samples were analyzed immediately after delivery.
Main Results:
- No significant differences were observed in umbilical arterial or venous pH, partial pressure of oxygen (PaO2), or partial pressure of carbon dioxide (PaCO2) among the three groups.
- Patient acceptability assessment indicated that facemask use impeded communication.
Conclusions:
- Routine administration of supplementary oxygen to mothers during elective Caesarean section under spinal anesthesia does not appear to significantly alter neonatal blood gas status.
- Oxygen delivery via nasal cannulae may be more acceptable to patients due to better communication.
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