Terapia endovascular en trauma vascular periférico: experiencia inicial / Endovascular therapy in peripheral vascular trauma: initial experience

Objetivos Mostrar nuestra experiencia inicial en el manejo endovascular de lesiones arteriales periféricas ocasionadas por trauma. Materiales y métodos Revisión retrospectiva de las fichas clínicas e imágenes diagnósticas y terapéuticas de 7 casos de trauma vascular: 2 seudoaneurismas de vasos tibiales, una fístula arteriovenosa (FAV) asociada a seudoaneurisma de vasos ilíacos, un seudoaneurisma gigante de arteria poplítea, una FAV de vasos poplíteos, una oclusión aguda de arteria poplítea en trauma contuso, y un caso de lesión iatrogénica de arteria subclavia con seudoaneurisma por catéter intraarterial central. En ambos casos de seudoaneurisma de arterias tibiales se efectuó embolización con coils. El caso de FAV asociada a seudoaneurisma ilíaco se manejó con una endoprótesis cubierta. Los casos de seudoaneurisma de arteria poplítea y la FAV de vasos poplíteos se repararon mediante stents cubiertos. La oclusión aguda de arteria poplítea se trató con un stent autoexpandible. En el caso del catéter intraarterial central, se selló el orificio con balón de angioplastia. Resultados Todos los pacientes fueron tratados de forma exitosa y evolucionaron sin complicaciones inmediatas; los seguimientos varían entre 3 meses y 3 años, sin evidencia de complicación. Discusión Si bien el tratamiento clásico del trauma vascular tiene plena vigencia en la actualidad, la terapia endovascular, con las herramientas disponibles, permite realizar el tratamiento definitivo o transitorio, a fin de mejorar las condiciones locales y poder efectuar una reparación abierta con menos complicaciones que la cirugía de urgencia.

Objectives To show our initial experience in endovascular management of peripheral artery trauma. Materials and methods We retrospectively collected the data of seven cases of vascular trauma: two tibial artery pseudoaneurysms, one case of arteriovenous fistula (AVF) associated to iliac vessel pseudoaneurysm, one giant pseudoaneurysm of the popliteal artery, a popliteal vessel AVF, an acute occlusion of the popliteal artery due to blunt trauma and a case of iatrogenic lesion of the subclavian artery with pseudoaneurysm resulting from a central intra-arterial catheter. Coil embolization was performed in both cases of tibial artery pseudoaneurysms. The case of iliac vessel pseudoaneurysm and AVF was treated with a stent graft. A covered stent was used to exclude both the popliteal pseudoaneurysm and popliteal vessel AVF. A bare stent was used in the case of acute popliteal occlusion. The intra-arterial central catheter in the subclavian artery was managed by means of compression with an angioplasty balloon. Results All patients were successfully treated with no immediate complications. Follow up ranges from 3 months to 3 years with no evidence of complication up to this point. Discussion Although the classic approach to vascular trauma treatment is still very much an alternative, endovascular therapy, through all of its tools, allows either definitive treatment or transient management, improving local conditions and thus to proceed at a later date with an elective open vascular repair with fewer difficulties and complications.

Endovascular repair of traumatic external iliac vessel pseudoaneurysm and arteriovenous fistulae / Tratamento endovascular de pseudoaneurisma traumatico e fistulas arteriovenosas em vasos iliacos externos

A 17-year-old male patient presenting with an abdominal gunshot wound and severe hypovolemic shock was initially operated and presented several injuries to the small bowel and cecum associated with severe hemorrhage. The patient had to be operated twice due to hypothermia, acidosis, and coagulopathy. In the late postoperative period, murmur and fremitus were observed. Angiography revealed a pseudoaneurysm associated with arteriovenous fistulae at the left external iliac vessels. Lesions were repaired with a stent graft placed in the external iliac artery, with a satisfactory outcome. Control computed tomography performed 6 months later evidenced artery integrity with closure of the fistulae. Endovascular therapy should be the preferred method in this type of vascular trauma complications.

Um paciente do sexo masculino com 17 anos de idade apresentando-se com ferimento abdominal por arma de fogo e choque hipovolêmico grave foi inicialmente operado e apresentava várias lesões no intestino delgado e ceco associadas a hemorragia grave. O paciente teve que ser operado duas vezes devido a hipotermia, acidose e coagulopatia. No período pós-operatório tardio, foram observados sopro e frêmito. Angiografia revelou um pseudoaneurisma associado a fístulas arteriovenosas nos vasos ilíacos externos ao lado esquerdo. As lesões foram tratadas mediante a colocação de stent na artéria ilíaca externa, com desfecho satisfatório. Tomografia computadorizada de controle realizada após 6 meses evidenciou integridade da artéria, com o fechamento das fístulas. O tratamento endovascular deve ser o método de escolha nesse tipo de complicação vascular traumática.