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  • Title: [Diagnostic and therapeutic observations drawn from the surgical experiences of 108 traumatic ruptures of the descending thoracic aorta].
    Author: Verdant A, Pagé A, Blair JF.
    Journal: Ann Chir; 1998; 52(8):813-20. PubMed ID: 9846434.
    Abstract:
    Traumatic rupture of the thoracic aorta should be suspected when automobile (62.9%), motorcycle (11.1%), ski-doo (2.7%), deltaplane (0.9%), or skiing accidents (0.9%), cause a sudden and rapid deceleration. It was also encountered with a vertical fall of 10 meters and more (4.6%), when a pedestrian was struck by a vehicle (4.6%) or the chest damaged by a high velocity flying object (4.6%). A lateral impact was found in 33% of injured patients and 52.7% were not wearing seat belts. Ruptured aorta was found as a single lesion in only 12% of the cases and among associated orthopedic lesions (63.8%) and abdominal injuries (28.7%), about 2/3 of them involved the left side of the body. The most reliable clinical sign of descending aortic rupture is the pseudo-coarctation syndrome found in 53% in the acute phase by simple pulse palpation and in 56% with blood pressure measurements. As soon as the diagnosis is suspected, associated hypertension present in 50% should be medically treated to avoid sudden exsanguination. Surgical repair should be undertaken with a perfusion technique which is an integral part of the ressuscitation procedure. A Gott shunt was used in 81 patients and a partial left heart bypass with a Bio-Medicus pump in 25 cases. This active atrioaortic bypass is physiologically superior. The pump flow (3727 +/- 612 ml/min.) is superior to the shunt flow (2833 +/- 576 ml/min.). Proximal pressure with the pump is better controlled (111 +/- 20 mmHg) than with the shunt (152 +/- 30 mmHg) and the mean distal pressure obtained with the pump is higher (81 +/- 19 mmHg) than with the shunt (64 +/- 22 mmHg). One case of paraplegia occured (0.9%) with an unfunctionnal Gott shunt. The survival rate is 95.4% (63/66 cases) in the acute phase and 100% (42/42 cases) in the chronic phase.
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