Global Cerebral Ischemia in a Beagle Dog

비글견에서 발생한 전반적 대뇌허혈

  • Choi, Ho-Jung (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Choi, Soo-Young (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • An, Ji-Young (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • O, I-Se (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Jeong, Seong-Mok (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Cho, Sung-Whan (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University) ;
  • Lee, Young-Won (College of Veterinary Medicine, Research Institute of Veterinary Medicine, Chungnam National University)
  • 최호정 (충남대학교 수의과대학.동물의과학연구소) ;
  • 최수영 (충남대학교 수의과대학.동물의과학연구소) ;
  • 안지영 (충남대학교 수의과대학.동물의과학연구소) ;
  • 오이세 (충남대학교 수의과대학.동물의과학연구소) ;
  • 정성목 (충남대학교 수의과대학.동물의과학연구소) ;
  • 조성환 (충남대학교 수의과대학.동물의과학연구소) ;
  • 이영원 (충남대학교 수의과대학.동물의과학연구소)
  • Published : 2009.02.27

Abstract

Global cerebral ischemia occurs commonly in patients who have a variety of clinical conditions including cardiac arrest and shock. Cerebral ischemia results in a rapid depletion of energy stores that triggers resulting in excitotoxic death. Imaging studies of the brain with computed tomography(CT) or magnetic resonance imaging(MRI) are necessary to confirm the clinical neurolocalization, identify any associated mass effect, and rule out other causes of focal brain disorders. Cardiopulmonary arrest was occurred by propofol anesthesia in a 1 year old, intact female Beagle dog. After successful cardiopulmonary resuscitation was performed within 5 minutes, clinical signs such as vocalization, paddling, opisthotonus and seizure were represented. At the 12th day, CT and MRI examinations of the brain were performed to evaluate the brain. After euthanasia, histopathologic examination was performed. On transverse image of CT, lesions appeared as a hypodense in the right dorsal surface of the frontal lobe and level of optic canal, and dorsomedial surface of occipital lobe of cerebrum. No contrast enhancement was represented following intravenous contrast administration. On MR images of brain, the lesions were seen as a hyperintense on T2-weighted(T2W) images and a isointense or mild hypointense on T1-weighted(T1W) images. Hyperintense lesions both T2W and T1W images were observed at the surrounding cerebral sulcus. There was no significant signal changes on contrast T1WI. Histopathologic examination after euthanasia revealed that the lesion was necrosis of the cerebral cortex caused by cerebral ischemia.

Keywords

References

  1. Adams RD, Victor M. Cerebrovascular diseases. In: Principles of Neurology. 6th edn. Eds R. D. and M. Victor McGraw-Hill, New York. 1997:777-873
  2. Barnett, et al. Stroke: pathophysiology, diagnosis and management. 2nd edn. Chuchill livingstone. 155-213
  3. Barnett, et al. Stroke: pathophysiology, diagnosis and management. 2nd edn. Chuchill livingstone. 49-101
  4. Bernard SA, Gray TW, Buist MD, et al. Treatment of comatose survivors of out-of-hospital cardiac arrest with induced hypothermia. N Engl J Med 2002; 346:557-563 https://doi.org/10.1056/NEJMoa003289
  5. Brant-Zawadzki M, et al. MR imaging of acute experimental ischemia in cats. Am J Neuroradiol 1986; 7:7-11
  6. Bryan RN, et al. Diagnosis of acute cerebral infarction: comparison of CT and MR imaging. AJNR 1991; 12:611
  7. Busto R, et al. Small differences in intraischemic brain temperature critically determine the extend of neuronal injury. J Cereb Blood Flow Metab 1987; 7:729-738 https://doi.org/10.1038/jcbfm.1987.127
  8. David S, Warner MD. Perioperative neuroprotection: There is no magic bullet. What do I do in my daily practice, and where are we going? Pathophysiology of cerebral ischemia. Durham, North Carolina 113:1-7
  9. Fonnum F. Glutamate: a neurotransmitter in mammalian brain. J Neurochem 1984; 42:1-11 https://doi.org/10.1111/j.1471-4159.1984.tb09689.x
  10. Hypothermia After Cardiac Arrest Study Group. Mild therapeutic hypothermia to improve the neurologic outcome after cardiac arrest. N Engl J Med 2002; 346:549-556 https://doi.org/10.1056/NEJMoa012689
  11. Izumi H, Anish B. Mechanisms of brain injury after global cerebral ischemia. Neurol Clin 2006; 24:1-21 https://doi.org/10.1016/j.ncl.2005.10.004
  12. Kalimo H, Kaste M & Haltia M. Vascular diseases. In: Greenfield's Neuropathology. 7th edn. Eds D. I. Graham and P. L. Lantose. Arnold, London. 2002:233-280
  13. Kazui S, Naritomi H, et al. Enlargement of spontaneous intracranial hemorrhage. Incidence and time course. Stroke 1996; 27:1783-1787 https://doi.org/10.1161/01.STR.27.10.1783
  14. Li PA, et al. Role of hyperglycemia-related acidosis in ischemic brain damage. Acta Physiol Scand 1997; 161:567- 580 https://doi.org/10.1046/j.1365-201X.1997.00264.x
  15. LS Garosi, et al. Ischemic stroke in dogs and humans: a comparative review. J Sm Anim Prac 2005; 46:521-529 https://doi.org/10.1111/j.1748-5827.2005.tb00281.x
  16. Nafi A, Thomas JM. Diagnostic imaging for intracerebral hemorrhage. Neurosurg Clin N Am 2002; 13:313-334 https://doi.org/10.1016/S1042-3680(02)00009-8
  17. Nussmeier NA. A review of risk factors for adverse neurologic outcome after cardiac surgery. J Extra Corpor Technol 2002; 34:4-10
  18. Richard J, Traystman. Animal models of focal and global cerebral ischemia. ILAR J. 2003; 44(2):85-95 https://doi.org/10.1093/ilar.44.2.85
  19. Salazar JD, Wityk RJ, Grega MA, et al. Stroke after cardiac surgery: short- and long-term outcomes. Ann Thorac Surg 2001; 72:1195-1201 https://doi.org/10.1016/S0003-4975(01)02929-0
  20. Shores A, et al. Clinical characteristics of cerebrovascular disease in small animals. In: Proceedings, 9th Am Coll Vet Int Med Forum 1991:777-778
  21. Simon R. et al. Canine cerebrovascular disease: Do dogs have strokes? J Am Anim Hospital Association 2003; 39:337-342
  22. Thomas WB. Cerebrovascular disease. Vet Clin North Am: Sm Anim Prac 1996; 26:925-943
  23. Zhu CZ, et al. Optimal blood glucose levels while using insulin to minimize the size of infarction in focal cerebral ischemia. J Neurosurg 2004; 101:664-668 https://doi.org/10.3171/jns.2004.101.4.0664