SAEVA Congress 2018 Proceedings | 12-15 February 2018 | ATKV Goudini Spa
Chronic thrombosis left jugular vein
Complete fibrous occlusion or a severe stricture of the jugular vein, while uncommon,
may result in consistent performance impairment in horses, particularly those
competing in maximal types of athletic work. In most horses, however, the prognosis
for jugular vein thrombophlebitis is good and the vein recanalizes after
thrombophlebitis. Thrombosis of other major veins may also play a role in decreased
performance in horses but occur infrequently and are rarely diagnosed.
Aortoiliofemoral thrombosis
Aortoiliofemoral thrombosis occurs infrequently, but can be associated with exercise-
associated unilateral hind limb lameness, ataxia, collapse or breeding failure in
stallions. Physical examination of an affected horse at rest may reveal weak metatarsal
arterial pulses or delayed saphenous refill in the affected limb. Marked hyperpnea,
other signs of respiratory distress and profuse, generalized sweating are often present
post exercise with trembling of the affected limb. Rectal examination may reveal
fremitus, a weak or absent pulse, or aneurismal dilatation of the affected artery or
arteries. Diagnosis can be confirmed by ultrasonographic evaluation of the terminal
aorta and iliac arteries with a high frequency (5.0 - 7.5 MHz) rectal transducer. A
hypoechoic to echogenic mass partially occluding the arterial lumen is imaged.
Aortoiliac thrombosis
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