Oxygen delivery by mask improves the PaO2 of pregnant ewes during short term anaesthesia for caesarean delivery of preterm lambs.
Vet Anim Sci
; 12: 100177, 2021 Jun.
Article
in En
| MEDLINE
| ID: mdl-34007951
ABSTRACT
The aim of this study was to determine if oxygen supplementation improved the PaO2 of pregnant ewes during short anaesthesia, when compared to a previous study where oxygen was not provided (Musk and Kemp, 2018). Twenty-six pregnant Merino cross ewes at 121-123 days of gestation were anaesthetised with intravenous midazolam and ketamine for subarachnoid administration of 60 mg of lignocaine and caesarean delivery of the preterm lamb. 100% oxygen was administered to the ewe by a face mask. Arterial blood samples were collected from the ewe immediately after delivery of the foetus. The ewes weighed 60.7 ± 5.5 kg and received 0.51 (0.47-0.58) mg/kg of midazolam and 10.3 (9.4-11.6) mg/kg of ketamine intravenously. The PaO2 of ewes receiving oxygen by face mask was higher than previously reported [92.6 ± 44.0 mmHg compared to 45.2 ± 11.8 mmHg (Musk and Kemp, 2018) (p = 0.0007)]. Oxygen delivery by mask improved the PaO2 of pregnant ewes during short term anaesthesia.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Vet Anim Sci
Year:
2021
Document type:
Article
Affiliation country:
Australia