Table 2 Anaesthesia, recovery and survival rates in 20 colic and 20 healthy horses

Duration of anaesthesia

183 ± 62 mins (45–300)

228 ± 26 mins (189–273)

Recovery time to standing

64 ± 45 mins (15–180)

52 ± 19 mins (18–86)

Number of attempts to stand

1.4 ± 0.6 (1–3)

2.4 ± 1.2 (1–4)

Survival rate

11/20

20/20

Time of death/euthanasia

3 during anaesthesia, 2 in recovery, 2 within 24 h after standing, 2 between DAY 2–DAY 7

Reasons for euthanasia or death

2 circulatory failure, 1 acute myocardial degeneration (autopsy diagnosis), 2 surgical findings, 1 ruptured stomach, 1 laminitis, 1 endotoxaemia, 1 endocarditis (chronic but not diagnosed before anaesthesia)