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British Journal of Radiology (1986) 59, 1093-1098
© 1986 British Institute of Radiology
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The British Journal of Radiology, Vol 59, Issue 707 1093-1098, Copyright © 1986 by British Institute of Radiology

ARTICLES

A feasibility study of a new approach to clinical radiosensitisation: hypothermia and hyperbaric oxygen in combination with pharmacological vasodilatation

R Sealy, GG Harrison, D Morrell, J Korrubel, A Gregory, L Barry, G Blekkenhorst, ER Hering, AB Fataar and J Boniaszczuk

It is proposed that hyperbaric oxygen fails in the clinical situation due to a high proportion (greater than 33%) of hypoxic cells in human tumours. The means of overcoming this problem are reviewed. Additional to hyperbaric oxygenation, moderate hypothermia (30 degrees C) to allow redistribution of oxygen in the tumour is proposed. A system of externally controlled intravenous anaesthesia has been developed for the single-subject hyperbaric cylinder. Pharmacological vasodilatation is induced in the anaesthetised patient who is then fluid loaded and cooled. Initial single-sensitising treatments are advocated. Twenty-nine patients with advanced mouth cancer have completed a course of this treatment, of whom five of nine were free of disease after 2 years and 10 of 21 at 1 year, with three intercurrent deaths. Fifteen have experienced local failure. This approach would appear to be practical, safe and promising.




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