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Effect of transient carotid artery compression during transcranial Doppler ultrasonography in dogs
  1. F. J. Duque, DVM1,
  2. R. Barrera-Chacon, DVM, PhD1,
  3. P. Ruiz, DVM1,
  4. D. Casamian-Sorrosal, DVM2,
  5. C. Zaragoza, DVM, PhD1 and
  6. J. M. Dominguez-Roldan, MD, PhD3
  1. 1 Department of Animal Medicine, Faculty of Veterinary Sciences, University of Extremadura, Avenida Universidad s/n, 10071 Caceres, Spain
  2. 2 Small Animal Hospital and Langford Veterinary Diagnostics, Department of Clinical Veterinary Science, University of Bristol, Langford House, Langford, Somerset BS40 5DU
  3. 3 Department of Critical Care, Clinical Hospital Virgen del Rocio, University of Sevilla, Avenida Manuel Siurot, 41013 Sevilla, Spain
  1. Correspondence to Dr Zaragoza, e-mail: zaragoza{at}unex.es

Abstract

Changes in blood flow in the arteries of the canine skull base following compression of the ipsilateral carotid artery were evaluated. Forty healthy conscious dogs were evaluated during examination in lateral recumbency. Using the temporal window, the rostral, middle and caudal cerebral arteries were evaluated. The basilar artery was studied through the suboccipital window. Following compression, the pulse Doppler signal was reduced or inverted when interrogating the rostral or middle cerebral artery, and no change was observed when the caudal cerebral artery or basilar artery was evaluated.

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