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Vet Surg. 2013 Oct;42(7):885-91. doi: 10.1111/j.1532-950X.2013.12062.x. Epub 2013 Sep 13.

Milk flow obstruction caused by varicose vein of the teat in dairy cattle.

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  • 1Faculté de Médecine Vétérinaire, Department of Clinical Science, Université de Montréal, St-Hyacinthe, Canada.

Abstract

OBJECTIVE:

To describe varicose vein as a cause of obstruction of the teat cistern in dairy cattle and to report therapeutic options and outcome.

STUDY DESIGN:

Retrospective case series.

ANIMALS:

Dairy cows (n = 22).

METHODS:

Medical records (1998-2011) of dairy cows admitted for milking difficulties caused by a teat varicose vein were reviewed. Three treatment approaches were used: sclerotherapy, ligation of the vein associated with sclerotherapy, and phlebectomy. Long-term outcome was obtained ≥ 6 months after treatment and defined as a milking improvement. Descriptive statistics were used to determine the population at risk and a chi square test was used to evaluate the relationship between treatments and outcomes.

RESULTS:

Twenty-four teats (22 cows) had a varicose vein. Forequarters were more frequently affected than rear quarters (P < .01). Three sclerotherapies, 12 ligations associated with sclerotherapy and 6 phlebectomies were performed. Five veins were not treated. Overall prognosis with treatment was good (84%) at ≥ 6 months and was not significantly different between treatment types (P = .38). Recurrence of the obstruction by the varicose vein occurred in 3 of 19 teats.

CONCLUSIONS AND CLINICAL RELEVANCE:

Several surgical options are available for treatment of teat varicose veins. The overall prognosis of return to normal milking is good.

© Copyright 2013 by The American College of Veterinary Surgeons.

[PubMed - indexed for MEDLINE]
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