OBJECTIVE: To see whether swine provide a suitable animal model for cerebral ischemia research projects related to apoptosis. Swine angiograms had not been obtained previously in our institution. METHODS: We performed angiography on an anesthetized pig. A right femoral artery cannulation was carried out, and angiographic images of the right cerebral arteries were obtained. RESULTS: We found that the swine cerebral circulatory system demonstrated a plexus of very small vessels, rete mirabile, in the base of the brain that was perfused by the ascending pharyngeal artery and reconstituted into the internal carotid artery downstream. CONCLUSION: Because of the presence of the rete mirabile, the swine brain circulatory system is not amenable to selective, intracranial, angiographic catheter-mediated infarction of cerebral arteries. Surgical occlusion of the common carotid or ascending pharyngeal artery, although technically possible, was also excluded as a method of creating reliable, reproducible cerebral ischemia because of the prompt and robust circle of Willis cross-perfusion that was observed on the angiograms.
OBJECTIVE: To see whether swine provide a suitable animal model for cerebral ischemia research projects related to apoptosis. Swine angiograms had not been obtained previously in our institution. METHODS: We performed angiography on an anesthetized pig. A right femoral artery cannulation was carried out, and angiographic images of the right cerebral arteries were obtained. RESULTS: We found that the swine cerebral circulatory system demonstrated a plexus of very small vessels, rete mirabile, in the base of the brain that was perfused by the ascending pharyngeal artery and reconstituted into the internal carotid artery downstream. CONCLUSION: Because of the presence of the rete mirabile, the swine brain circulatory system is not amenable to selective, intracranial, angiographic catheter-mediated infarction of cerebral arteries. Surgical occlusion of the common carotid or ascending pharyngeal artery, although technically possible, was also excluded as a method of creating reliable, reproducible cerebral ischemia because of the prompt and robust circle of Willis cross-perfusion that was observed on the angiograms.
Authors: James R L Stanley; Abraham R Tzafriri; Kathryn Regan; Alan LaRochelle; Gee Wong; Brett G Zani; Peter M Markham; Lynn Bailey; Anna Spognardi; Gregory A Kopia; Elazer R Edelman Journal: EuroIntervention Date: 2016-03 Impact factor: 6.534
Authors: Julien Adjedj; Fabien Picard; Maarten Vanhaverbeke; Bernard De Bruyne; Alain Cariou; Ming Wu; Stefan Janssens; Olivier Varenne Journal: Intensive Care Med Exp Date: 2018-10-12
Authors: Eric A Wright; Christopher D d'Esterre; Laura B Morrison; Neil Cockburn; Michael Kovacs; Ting-Yim Lee Journal: PLoS One Date: 2016-06-27 Impact factor: 3.240