EQUINE VETERINARY EDUCATION / AE / FEBRUARY 2018
95
Czech Warmblood Thoroughbred Hannover Horse Kladruber Paint
Friesian Polish Halfbred
Warmblood Crossbred Haflinger
Slovak Warmblood Welsh Pony
American Standardbred Noriker Belgian
Coldblood Crossbred Halfbred
Shagya-Arabian Crossbred Arabian
0
1 1 1 1 1 1 1 1 1 1 1 1
2 468 Number of horses
Fig 1: The breed distribution within the group of horses suffering from an oesophageal disorder.
18 16 14 12 10 8 6 4 2 0
17 10 12
11 6 3
2 2 2
6
6
5 3 0-4 yr 4-8 yr 8-12 yr 12-16 yr 16-20 yr Fig 2: The age distribution within the group of horses suffering from an oesophageal disorder.
disorders was significantly higher in the group of horses aged ≤4 years in comparison with other age groups (all P<0.005). Types of conditions identified were divided into nine
diagnosis subgroups: simple oesophageal obstruction (intraluminal obstruction with pelleted or coarse food or shavings); oesophagitis (primary oesophageal mucosal inflammation/ulceration visible during oesophagoscopy in all cases and caused by the trauma or secondary oesophageal mucosal inflammation/ulceration caused by gastric reflux); oesophageal stricture type 1 (mural lesions, which may involve only the adventicia and muscular layers); type 2 (oesophageal rings or webs that involve only the mucosa and submucosa); type 3 (annular rings, which involve all the layers of the oesophageal wall) (Fubini 2002); oesophageal diverticulum; oesophageal rupture; oesophageal mural abscess; oesophageal cyst; idiopathic megaoesophagus; and communication between the oesophagus and the guttural pouch. Oesophagitis was listed into the group of
oesophageal disorders when it was confirmed as a cause of the presenting clinical signs at the time of admission. Oesophagitis was listed into the group of oesophageal disorder complications when it followed a primary oesophageal disorder, and was included as a complication that developed during hospitalisation following primary oesophageal disorders diagnosed at admission. The most common oesophageal disorder was simple
obstruction (22 cases), which represented 0.32% of all horses presented to the clinic during the study period. This was followed by oesophagitis in 5 cases, oesophageal stricture in 3, oesophageal rupture in 3 and idiopathic megaoesophagus in 2. Oesophageal diverticulum, cyst, mural abscess and communication between oesophagus and guttural pouch were identified in one case each (Fig 3). The aetiology of simple obstruction was food impaction
(17/22, 77.27%), bedding impaction (2/22, 9.09%) and unknown in three cases (3/22, 13.64%). Three horses had distal
© 2016 EVJ Ltd
>20 yr 2
Number of cases
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