The authors have perfected a technique making possible the percutaneous introduction of a balloon filled with hydrosoluble iodine and releasable, either in an arteriovenous fistula or in an aneurysm. Experimental jugulo-carotid fistulae and experimental aneurysms in the dog were treated in this way. The technique has been used in two human patients - one with a traumatic caverno-carotid fistula and the other with a complicated vertebral fistula.
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