Читать книгу Manual of Equine Anesthesia and Analgesia - Группа авторов - Страница 129

 Occlude each jugular vein in turn just caudal to the angle of the jaw (cranial jugular furrow) and milk the luminal blood distally toward the thoracic inlet; the vein should empty readily. Examine the vein for any spontaneous filling from the heart while the vein is still occluded (see jugular waveforms, above). Retrograde filling (jugular pulse) occurs with marked right AV valve regurgitation. A “true” jugular pulse is rare in the horse.

 Next occlude the jugular vein distally at the thoracic inlet and observe the time for the vein to refill. The jugular vein will normally fill with blood over several seconds in the normal resting horse. Then release the vein and watch for rapid emptying.