[The results of bypass with the BioPump in the surgery of traumatic rupture of the thoracic aorta without heparin].

In surgery of the traumatic rupture of descending thoracic aorta, external shunt without systemic heparinization is commonly employed to avoid the bleeding of other injured organs as well as the ischemic injury of spinal cord. However, it provides no means of controlling the flow. We employed the BioPump without heparinization in 2 cases of traumatic rupture of descending thoracic aorta and additional 2 cases of aneurysm of thoracic aorta. Significant platelet loss occurred immediately after operation, however, there was no postoperative evidence of the organ failures due to microembolization. Heparinless bypass with the BioPump is considered to be safe and simple as an adjunct means in surgery of the traumatic rupture of thoracic aorta.