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Arteriographical and pathological changes in chronic laminitis in dairy cattle
1Department of General and Large Animal Surgery, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands.
The Veterinary Quarterly
|July 1, 1989
Summary
Chronic laminitis in cattle is linked to reduced blood flow (hypoperfusion) in the digits. Arteriography revealed arteriosclerosis in affected bovine digits, suggesting a cause for laminitis.
Area of Science:
- Veterinary Pathology
- Bovine Medicine
- Cardiovascular Science
Background:
- Chronic laminitis is a significant concern in cattle, impacting hoof health and welfare.
- The underlying pathophysiology of chronic laminitis, particularly vascular involvement, requires further elucidation.
Purpose of the Study:
- To investigate the relationship between arteriographic findings and macroscopic signs of chronic laminitis in bovine hind digits.
- To determine the histological basis of vascular changes observed in laminitic digits.
Main Methods:
- Arteriography was performed on 76 bovine hind digits sourced from a slaughterhouse.
- Macroscopic examination for signs of chronic laminitis was conducted.
- Histological examination of arteries from radiographically abnormal digits was carried out.
Main Results:
- Statistically significant correlations were found between macroscopic laminitis signs and arteriographic appearance.
- Histological examination revealed arteriosclerosis in arteries showing radiographic abnormalities.
- Findings suggest a link between reduced digital blood flow and chronic laminitis development.
Conclusions:
- Chronic laminitis in cattle may result from a subclinical laminitis episode leading to persistent digital hypoperfusion.
- Arteriosclerosis is a key pathological feature in the vascular supply of chronically laminitic bovine digits.
- This study highlights the critical role of vascular compromise in the pathogenesis of bovine laminitis.