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The Scientific World Journal
Volume 2013, Article ID 189843, 6 pages
Research Article

Maternal and Foetal Cardiovascular Effects of the Anaesthetic Alfaxalone in 2-Hydroxypropyl-β-cyclodextrin in the Pregnant Ewe

Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autonoma de Barcelona (UAB), Bellaterra, 08193 Barcelona, Spain

Received 12 August 2013; Accepted 9 September 2013

Academic Editors: Y. Hayashi and R. A. Steinbrook

Copyright © 2013 Anna Andaluz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The objective of this study was to determine the pharmacodynamics effects of the anaesthetic alfaxalone in 2-hydroxypropyl-β-cyclodextrin in pregnant sheep after the intravenous injection of a 2 mg/kg weight dose. Six pregnant Ripollesa sheep, weighing 47.1 ± 4.4 kg, were used. Twenty-four hours after instrumentation, sheep were anaesthetized with intravenous alfaxalone in cyclodextrin. Time to standing from anaesthesia was 30.0 ± 10.81 min. Foetal heart rate increased significantly during the first 5 min after alfaxalone administration. Significant differences were observed in maternal diastolic arterial blood pressure between minute 10 and minutes 90, 120, 150, 180, 210, and 240. Significant differences were observed for foetal systolic arterial blood pressure between 5 and 30 min after alfaxalone administration. Significant differences in foetal pH were detected during the entire study period, whereas maternal pH returned to baseline values by 60 min after alfaxalone administration. The present study indicated that alfaxalone in 2-hydroxypropyl-β-cyclodextrin administered as an intravenous bolus at 2 mg/kg body weight produced minimal adverse effects and an uneventful recovery from anaesthesia in pregnant sheep and their foetus.