Table 2 Diagnosis, treatment category and short-term outcome in 1588 colic horses referred to the University Hospital for Large Animals, Denmark, 2000–2009

Diagnosis

N

Medical

Surgical

Medical

Surgical

Large colon/caecum impaction

360

301

15

11

33

Undiagnosed

302

269

4

5

24

Large colon displacement

274

190

54

3

27

Small intestine: Volvulus/intussusception/strangulation

162

3

35

7

117

Tympany

87

80

2

0

5

Large colon: Volvulus/intussusception/strangulation

71

1

9

9

52

Ruptured viscus

74

2

0

42

30

Colitis

50

7

0

30

13

Enteritis

35

22

4

3

6

Primary ventricular filling/overeating

27

21

2

3

1

Peritonitis

31

9

3

9

10

Small intestinal impaction

18

4

6

1

7

Verminous arteritis

23

3

2

8

10

Gastric ulceration

20

17

1

2

0

Descending colon : Enterolit/obstipation/volvulus/strangulation

10

3

2

2

3

Adynamic ileus

9

5

0

1

3

Muscularis hypertrophy

6

0

0

3

3

Grass sickness

6

2

0

2

2

Other

23

7

2

6

8

Totals

1588

946

141

147

354