J Thorac Cardiovasc Surg 1996;111:904
© 1996 Mosby, Inc.
Relationship between intelligence and duration of circulatory arrest with deep hypothermia
Tom Treasure, MD, FRCS
Professor of Cardiothoracic Surgery
St. George's Hospital
London SW17 0QT, United Kingdom
To the Editor:
I am grateful to Oates and colleagues
1 for quoting our work, but our studies of circulatory arrest were undertaken in the Mongolian gerbil, not the golden hamster, as stated in their article. Our experiments relied on the unusual cerebral vasculature in this particular mammal, which enabled us to render the cortex ischemic by bilateral carotid occlusion while the animal survived on its vertebral supply. In other small mammals the carotids can be ligated bilaterally with impunity.
References
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Oates RK, Simpson JM, Turnbull JAB, Cartmill TB. The relationship between intelligence and duration of circulatory arrest with deep hypothermia. J THORAC CARDIOVASC SURG 1995;110:786-92.[Abstract/Free Full Text]