Tratamento endovascular com endoprótese aórtica para aneurisma de artéria subclávia secundário à fístula arteriovenosa axilo-axilar traumática tardia / Endovascular treatment with aortic endoprostheses for subclavian artery aneurysm secondary to late traumatic axillary-axillary arteriovenous fistula

Resumo As fístulas arteriovenosas (FAVs) traumáticas envolvendo os vasos axilares e subclávios são incomuns e correspondem de 5 a 10% de todos os traumas arteriais. A anatomia complexa dessa região torna desafiador o tratamento desse segmento. Neste desafio terapêutico, descrevemos o caso de um homem de 73 anos, encaminhado por edema progressivo e úlcera no membro superior direito, com história pregressa de ferimento por arma de fogo na região infraclavicular direita há cerca de 50 anos. Foi realizada angiotomografia e identificou-se FAV axilo-axilar associada à tortuosidade e dilatação aneurismática de artéria subclávia a jusante. O paciente foi submetido à intervenção endovascular com endoprótese cônica (monoilíaca) 26 × 14 × 90 mm Braile® na artéria subclávia aneurismática, posterior à saída da artéria vertebral direita, e endoprótese monoilíaca 16 × 16 × 95 mm Excluder® com sobreposição na primeira prótese, apresentando resultado satisfatório. Portanto, descreve-se a possibilidade de utilização de endoprótese aórtica em situação incomum e de exceção, com sucesso.

Abstract Traumatic arteriovenous fistulas (AVFs) involving the axillary and subclavian vessels are uncommon and account for 5 to 10% of all arterial traumas. The complex anatomy of this region makes treatment of this segment challenging. In this therapeutic challenge, we describe the case of a 73-year-old man, referred for progressive edema and ulceration involving the right upper limb and with a history of gunshot wound to the right infraclavicular region about 50 years previously. Angiotomography was performed and an axillary-axillary AVF was found, associated with tortuosity and aneurysmatic dilation of the subclavian artery downstream. He underwent endovascular intervention and a conical (monoiliac) 26 × 14 × 90 mm Braile® endoprosthesis was used in the aneurysmatic subclavian artery, posterior to the exit of the right vertebral artery and a 16 × 16 × 95mm Excluder® monoiliac endoprosthesis was placed overlapping the first prosthesis, showing a satisfactory result. Therefore, the possibility of successfully using aortic endoprostheses in an unusual and exceptional situation is described.

Lesión traumática del nervio axilar identificada luego de la reparación del manguito rotador / Traumatic injury of the axillary nerve identified after rotator cuff repair

Introducción: La prevalencia del dolor de hombro oscila entre el 6,7% y el 66,7%; los trastornos del manguito rotador y especialmente la ruptura pueden alcanzar una prevalencia del 22,1%. Debido a los importantes avances y estudios en la reparación de esta lesión, la cirugía artroscópica ha permitido una mejor identificación, visualización y clasificación, y un mejor manejo de los pacientes. Además, la ruptura del manguito rotador o la fractura de la tuberosidad mayor del húmero incrementan el riesgo de lesión nerviosa (riesgo relativo -1,9), más significativa en pacientes >60 años. Se presenta a un paciente con ruptura postraumática del manguito rotador, quien requirió reparación artroscópica mínimamente invasiva, con evolución posoperatoria estacionaria y diagnóstico de lesión del nervio axilar, sin recuperación autolimitada atribuida a luxación anterior e inestabilidad secundaria al trauma inicial. Conclusiones: La lesión del nervio axilar es más frecuente que lo esperado y, en muchas ocasiones, la identificación temprana se pasa por alto debido a la alta asociación con otras lesiones. Por lo tanto, el diagnóstico y el manejo oportunos requieren mucho cuidado por parte del médico tratante. Nivel de Evidencia: IV

Introduction: The prevalence of shoulder pain varies between 6.7% and 66.7%; whereas rotator cuff disorders-especially rupture-can reach a prevalence of 22.1%. Due to the important advances and studies in the repair of this injury, arthroscopic surgery has allowed a better identification, visualization and classification, as well as a better handling of the patients. In addition, rotator cuff ruptures or greater tuberosity fractures increase the risk of nerve injury (relative risk -1.9), which is more significant in patients >60 years old. We discuss the case of a patient with post-traumatic rotator cuff rupture who required minimally invasive arthroscopic repair. No weight-bearing was allowed during the postoperative period. Patient presented a non-self-limited axillary nerve injury secondary to anterior dislocation and resulting instability after the original trauma. Conclusions: Axillary nerve injuries are more common than expected and, in many cases, early identification is not possible due to its high rate of association with other injuries. Therefore, treating physicians must be very careful in order to achieve a timely diagnosis and management of the patient. Level of Evidence: IV

Endovascular repair of a penetrating axillary artery injury

Abstract We report a 16-year-old boy who sustained a gunshot injury on his upper left side of the chest that resulted in an injury to the left axillary artery and was treated with endovascular repair. An endovascular repair has been increasingly accepted for the management of hemorrhage in critically ill trauma patients; using covered endovascular stents provides an alternative modality for both controlling hemorrhage and preserving flow.

Reparación de sección de arteria axilar por trauma vascular secundario a herida por arma blanca: a propósito de un caso / Repair of axillary artery section due to vascular trauma secondary to stab wounds: a case report

Objetivo: Presentar un caso clínico y discutir el manejo del trauma de arteria axilar y revisar la literatura actual. Caso Clínico: se presenta el caso de un paciente con lesión de arteria axilar, que es traído en shock hipovolémico al Servicio de Emergencias de nuestro hospital. En pabellón, se aprecia sección incompleta de la segunda porción de la arteria axilar. Se controla y repara con anastomosis primaria término-terminal. En su posoperatorio evoluciona de forma satisfactoria. Discusión: El manejo del trauma vascular debe ser metódico y multidisciplinario. Los signos duros de trauma vascular son indicación de exploración quirúrgica inmediata. Los pacientes con signos blandos pueden complementarse con imágenes. En una sección incompleta de arteria axilar, la anastomosis término-terminal ha mostrado buenos resultados. Conclusiones: las lesiones de arteria axilar en el contexto de traumas son infrecuentes. Su manejo necesita de un alto índice de sospecha, un enfoque multidisciplinario y un acceso quirúrgico adecuado al contexto.

Objective: To present a clinical case and discuss the management of axillary artery trauma and to review current literature. Clinical case: Male patient with axillary artery injury, who is brought in hypovolemic shock to the Emergency Department. Surgical findings demonstrated an incomplete section of the second portion of the axillary artery which was repaired with primary end-to-end anastomosis. Postoperatively, the patient evolves without pain and is discharged. Discussion: The management of vascular trauma should be methodical and multidisciplinary. Hard signs of vascular trauma mandate immediate surgical exploration. Patients with soft signs may need further evaluation with images. In an incomplete section of the axillary artery the end-to-end anastomosis has shown good results. Conclusions: Axillary artery lesions in the context of trauma are infrequent. Its management requires a high index of suspicion, a multidisciplinary approach and adequate surgical access.

Axillary artery lesion secondary to fracturing of the proximal third of the humerus: case report / Lesão da artéria axilar secundária a fratura do terço proximal de úmero: relato de caso

Lesions of the axillary artery are rare in patients with fracturing of the proximal third of the humerus and may have greatly varying clinical manifestations. They are responsible for 15% and 20% of upper-limb artery injuries and the commonest mechanism is a fall to the ground, which accounts for 79% of such injuries. In some cases, the signs only appear later on. It is important to bear this association in mind, so as to make an early diagnosis and avoid serious complications. We report on a case of traumatic injury of the axillary artery secondary to fracturing of the proximal third of the humerus in an 84-year-old patient, with late evolution of clinical signs of ischemia in the limb affected. The aim here was to discuss the diagnostic difficulties and treatment...

As lesões da artéria axilar são raras em pacientes com fraturas do terço proximal do úmero e podem ter manifestações clínicas bastante variadas. São responsáveis por 15% a 20% das lesões arteriais dos membros superiores e o mecanismo mais comum é a queda ao solo, que representa 79% dos traumas. Em alguns casos os sinais só aparecem tardiamente. É importante lembrar essa associação, a fim de diagnosticá-la precocemente e evitar complicações graves. Relatamos um caso de lesão traumática da artéria axilar secundária à fratura do terço proximal do úmero em uma paciente de 84 anos, com evolução tardia dos sinais clínicos de isquemia do membro acometido. O objetivo é discutir as dificuldades do diagnóstico e do tratamento...

Which Graft must be Preferred in Firearm Injury of the Axillary Artery.

Aims: Interposition graft technique is used mostly in firearm wounds of axillary artery, because of excessive defect of the vessel. Autologous vein has been preferred in general application, even though there is a mild size discrepancy between native artery and autologous vein. However, in many series, prosthetic graft infection risk has been reported as low. Presentation of Case: I am presenting a patient with a gunshot wound to the right upper chest. As a first choice I preferred saphenous vein which was occluded by thrombosis at the post-repair third week in spite of anticoagulant therapy and was replaced with prosthetic graft which was patent at the eight month follow-up. Discussion: Although the theoretical risk of infection of prosthetic grafts, many previous reports have demonstrated that prosthetic grafts are nearly as safe as autologous grafts and they have high long-term patency rate. Conclusion: There is no point in insisting on autologous grafts in cases of the diameter discrepancy between native artery and autologous graft, prosthetic graft may be used more frequently in axillary artery trauma, and post-repair anticoagulants may be administered in the consequences of size discrepancy between the native artery and the graft.

Isquemia arterial aguda del miembro superior por uso de muletas / Isquemia arterial aguda do membro superior por uso de muletas / Crutches induced acute arterial ischemia of the upeer limb

La compresión axilar por el uso de muletas es una causa infrecuente y subdiagnosticada de isquemia arterial aguda del miembro superior. Se presenta el caso de un paciente con isquemia aguda debido a trauma en la confluencia de las arterias axilar y humeral inducido por el uso de muletas. Dicha lesión fue el foco de microembolias que ocluyeron el arco palmar y la arteria humeral. Se diagnosticó con una arteriografía selectiva de la arteria axilar, y se tratómediante un bypass axilo-humeral con prótesis de PTFE anillado de 6 mm, con resultado satisfactorio en el seguimiento clínico a cinco años del postoperatorio.

A compressão axilar devido ao uso de muletas é uma causa pouco frequente e subdiagnosticada de isquemia arterial aguda do membro superior. Apresenta-se o caso de um paciente com isquemia aguda por trauma da confluência das artérias axilar e femoral induzido pormuletas. Esta lesão foi o foco de microembolias que provocaram a oclusão do arco palmar e da artéria femoral. Foi diagnosticado com uma arteriografia seletiva da artéria axilar, e tratado com um bypass axilo-femoral com prótese de capas de PTFE de 6 mm, com resultado satisfatório no seguimento clínico, cinco anos depois do pós operatório.

Crutch induced axillary trauma represents an infrequent but underdiagnosed cause of acuteischemia to the upper limb. We present a case of acute arterial ischemia caused by trauma of the confluence of the axillary and brachial arteries induced by the use of crutches. This lesion was the origin of microembolisms that occluded both the palmar arch and the brachialartery. The diagnosis was made by a selective arteriography of the axillary artery. An axillobrachial bypass with a 6 mm ringed PTFE prosthesis was performed showing satisfactory resultson his 5 year postoperative clinical follow up.

Lesión de la arteria axlar secundaria a la fractura del cuello del húmero. Reporte de caso / Axillary artery injury secondary to humeral neck fracture. Case report

Las fracturas de húmero proximal corresponden al 75 pro ciento de las fracturas en pacientes mayores de 40 años. Después de los 50 años y por su alta incidencia de osteoporosis, las mujeres tienen una mayor frecuencia de fracturas que los hombres. Y aunque en pacientes menores de 50 años el trauma de alto impacto es la causa principal de fractura, en pacientes que sobrepasan esa edad los mecanismos de bajo impacto son la causa más común. Las lesiones de la arteria axilar ocurren frecuentemente con dislocaciones de hombro y con fracturas de clavícula, no asociándose usualmente a fracturas del humero proximal. Presentamos el caso de una paciente con lesión de la arteria axilar asociada a una fractura conminuta de humero proximal. Usualmente el diagnóstico se sospecha por el cuadro clínico, teniendo en cuenta que durante el examen físico inicial, la circulación colateral del hombro puede demostrar pulsos normales, a pesar de que haya una lesión en la arteria axilar. Para tratar este tipo de lesiones el diagnóstico temprano es un elemento clave y para disminuir complicaciones futuras la circulación se debe restablecer en las primeras seis a ocho horas. De ahí la importancia de mantener un alto índice de sospecha cuando existen fracturas cercanas a grandes vasos y dada la anatomía vascular alrededor de la región proximal del humero, se debe descartar una lesión de la arteria axilar.

Thoracoscopic management of thoracic duct injury: Is there a place for conservatism?

Thoracic duct injury is a rare but serious complication following chest surgeries and major neck dissections. Clinically, it can present as cervical chylous fistula, chylothorax or chylopericardium. Without treatment, the mortality is up to 50% and thus, early aggressive therapy is indicated. Traditional conservative management includes low-fat diet, parenteral nutrition, careful monitoring of fluid and electrolytes, and drainage of the neck wound or chylothorax. Patients with failed conservative management require definitive treatment in the form of ligation of the thoracic duct, which has traditionally been done by thoracotomy. The advent of Video-Assisted-Thoracoscopic-Surgery (VATS) over the last decade has changed the approach towards the management of numerous chest diseases. Thoracoscopic ligation of the thoracic duct has also been reported. We report herein a case of postoperative cervical chylous fistula managed successfully by VATS thoracic duct ligation and present a systematic analysis of the English literature to highlight the current trends in the management of thoracic duct injury.

Vascular injuries caused by orthopaedic screws

To describe 3 cases of vascular injuries due to orthopaedic procedures. Clinical Presentation and Intervention: Of 242 vascular injuries, 3 were due to orthopaedic screws. The 1st patient presented with a late complication [after 3 years] of an orthopaedic screw placed in close proximity to the axillary artery that with time got eroded and leaked to form a false aneurysm which later caused embolisation to the arm and limb ischaemia. The 2nd and 3rd cases were due acute ischaemia following the orthopaedic procedures. Both were injuries to the popliteal artery, one after a long screw and the other after drilling the tibia. The aneurysm of the 1st case was resected, the screw was removed and a reversed segment of the right long saphenous vein was used to repair the axillary artery. In the 2nd patient, a bypass of the left popliteal artery to the tibio-peroneal trunk was performed using a reversed 12-cm-long saphenous vein graft retrieved from the right thigh. In the 3rd patient, the right popliteal vein was ligated, and a reversed 25-cm-long saphenous vein graft retrieved from the left thigh was used for a femoro-popliteal bypass. For the 3 patients, postoperative recovery was unremarkable. Pulses were present within 6-10 months of follow-up. Conclusions: Whenever limb vascularity is compromised after an orthopaedic procedure, a high index of suspicion for an arterial injury should be exercised and prompt referral to the vascular service is mandatory. Repair of injured vessels with a saphenous vein graft provides excellent long-term results

Factors affecting the outcome of axillosubclavian arterial injuries

Twenty cases of subclavian artery injury and 14 cases of proximal artery injury were included in this study. Penetrating trauma was responsible for 26 cases of axillosubclavian arterial injuries, whereas blunt trauma accounted for only 8 patients. Thirty patients were presented with absent distal upper extremity pulses, while only four patients with subclavian artery injury suffered from a supraclavicular swelling with palpable distal pulses. Angiography was done in 17 patients who were vitally stable. Patients with soft signs that were suspicious of vascular injury underwent duplex study prior to angiography to confirm the diagnosis and angiography was followed to locate the site of the injury and to plan the operation. Four patients died before surgery and another four patients died intraoperatively from massive blood loss. Twenty patients needed saphenous interposition graft, four patients required venous patch, while the remaining two patients underwent a repair with synthetic graft [ringed PTFE, 8 mm] when suitably sized vein was not available and in the absence of contamination. The factors that influenced the mortality rate were the hemodynamic status of the patient, the presence of other associated injuries and the site of arterial injury. Preoperative ischemia time, the site of arterial injury and the presence of other associated injuries had a major impact as regards the postoperative morbidity. Associated brachial plexus injury is considered the most important item regarding postoperative morbidity, leaving the patient with very poor recovery of upper extremity function