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Published on: March 1, 2019
A new reversible ischemic neurologic deficit model in dogs
Cemile Oztin Ogün1, Güngör Taştekin, Demet Kireşi
1Department of Anesthesiology and Intensive Care, Faculty of Medicine, Selcuk University, Konya, Turkey. coztin@hotmail.com
Summary
This study developed a canine model of internal carotid artery occlusion, demonstrating reversible ischemic neurological deficits. This model is suitable for studying surgical revascularization and diagnostic imaging techniques.
Area of Science:
- Neuroscience
- Surgical Innovation
- Animal Models
Background:
- Developing reliable animal models is crucial for advancing neurosurgical techniques.
- Internal carotid artery (ICA) occlusion models are essential for studying cerebral ischemia and revascularization.
Purpose of the Study:
- To create a canine model of internal carotid artery (ICA) occlusion.
- To evaluate the model's utility for studying surgical revascularization procedures.
Main Methods:
- A left frontoparietal craniectomy was performed in five mongrel dogs.
- The ICA and arterial circle were transected, allowing collateral perfusion via the contralateral ICA.
- Magnetic resonance imaging (MRI) and brain single-photon emission computed tomography (SPECT) were used for assessment.
Main Results:
- All dogs exhibited temporary hemiparesis, resolving within 7-10 days.
- Early MRI and SPECT revealed cerebral ischemia and hypoperfusion in the left parietal cortex.
- Ischemic areas significantly reduced in size on later imaging, indicating reversibility.
Conclusions:
- The developed canine model exhibits reversible ischemic neurological deficits.
- This model is suitable for diagnostic imaging and pharmacological studies of cerebral ischemia.
- The spontaneous resolution of symptoms supports its use in studying revascularization effects.
