1. Intermittent positive pressure ventilation with constant positive end-expiratory pressure and alveolar recruitment manoeuvre during inhalation anaesthesia in horses undergoing surgery for colic, and its influence on the early recovery period 
Klaus Hopster, Sabine BR Kästner, Karl Rohn, Berhard Ohnesorge 
Veterinary Anaesthesia and Analgesia 
Volume 38, Issue 3, Pages (May 2011)
DOI: /j x
Copyright © 2011 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia. Terms and Conditions

2. Figure 1
During anaesthesia. (a) Mean and standard deviation of arterial oxygen partial pressure (PaO2) during anaesthesia in two groups of horses undergoing anaesthesia for colic surgery. Group C (n = 12, black diamonds) were ventilated using intermittent positive pressure ventilation (IPPV) alone. Group RM (n = 12, white squares) were ventilated using IPPV with constant positive end-expiratory pressure (PEEP) and alveolar recruitment manoeuvres. *Significant difference between both groups (p < 0.05). (b) Mean and standard deviation of arterial carbon dioxide partial pressure (PaCO2) during anaesthesia in two groups of horses; group C (n = 12, black diamonds) and group RM (n = 12, white squares). For ventilation strategies see Fig. 1.
Veterinary Anaesthesia and Analgesia  , DOI: ( /j x)
Copyright © 2011 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia. Terms and Conditions

3. Figure 2
Mean and standard deviation of mean arterial blood pressures during anaesthesia in two groups of horses; group C (n = 12, black diamonds); group RM (n = 12, white squares). For intra-anaesthetic ventilation strategies see Fig. 1.
Veterinary Anaesthesia and Analgesia  , DOI: ( /j x)
Copyright © 2011 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia. Terms and Conditions

4. Figure 3
Recovery period. (a) Mean and standard deviation of PaO2 in the early recovery period in two groups of horses; group C (n = 12, black diamonds) and group RM (n = 12, white squares). Black arrow = starting spontaneous ventilation and turning in lateral recumbency. Time point-6 (group C) and time point-4 (group RM) = stopping mechanical ventilation. For intra-anaesthetic ventilation strategies see Fig. 1. *Statistically significant (p < 0.05). (b) Mean and standard deviation of PaCO2 in the early recovery period in two groups of horses; group C (n = 12, black diamonds) and group RM (n = 12, white squares). Black arrow = starting spontaneous ventilation and turning in lateral recumbency. Time point-6 (group C) and time point-4 (group RM) = stopping mechanical ventilation. For intra-anaesthetic ventilation strategies see Fig. 1.
Veterinary Anaesthesia and Analgesia  , DOI: ( /j x)
Copyright © 2011 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia. Terms and Conditions