Abstract
Details of three cases of ruptured thoracic aorta are presented with reference to important diagnostic features, particularly hypertension, radiograph appearances and development of murmurs. An account of left ventriculo-aortic support for the distal circulation is given. This uses the ventricle as the pump, in circumstances where left atrio-femoral bypass may not be practicable, and is shown to be technically satisfactory and to provide adequate distal support.