Estudio multicéntrico de la reparación endovascular urgente de la aorta torácica: indicaciones y resultados / A multicenter study of emergency endovascular repair of the thoracic aorta: indications and outcomes

Objetivo Las técnicas endovasculares se han convertido en una herramienta esencial para el tratamiento de la patología de aorta torácica descendente (TEVAR). El objetivo es analizar las indicaciones y resultados del TEVAR urgente a nivel nacional en relación con la cirugía programada. Diseño y ámbito de estudio Registro multicéntrico retrospectivo de pacientes con patología de aorta torácica descendente tratados de urgencia mediante técnicas endovasculares entre los años 2012-2016 en 11 servicios clínicos. Pacientes, criterios de inclusión 1) Aneurismas de aorta torácica rotos, 2) roturas traumáticas de aorta torácica y 3) disecciones de aorta torácica tipo B (DATBc) complicadas. Variables principales Mortalidad, supervivencia y tasa de reintervenciones. Variables secundarias Datos demográficos, factores de riesgo cardiovasculares, datos específicos por indicación, datos técnicos y complicaciones postoperatorias. Resultados Se obtuvieron 135 TEVAR urgentes (111 varones, edad media 60,4 ± 16,3 años): 43 aneurismas aórticos rotos (31,9%), 54 disecciones tipo B (40%) y 32 roturas aórticas traumáticas (23,7%) y otras etiologías 4,4%. La mortalidad global a los 30 días fue del 18,5%, siendo superior en los aneurismas de aorta torácica rotos (27,9%). La supervivencia media actuarial ha sido del 67± 6% a los 5 años. La tasa de ictus postoperatoria fue del 5,2% y la tasa de isquemia medular del 5,9%. Las reintervenciones aórticas fueron necesarias en 12 pacientes (9%). Conclusiones La patología de aorta descendente urgente puede ser tratada mediante técnicas endovasculares con resultados óptimos y baja morbimortalidad, aunque ligeramente superior a los casos electivos. Este registro aporta por primera vez, información de la realidad clínica diaria del TEVAR urgente en España. (AU)

Objective Endovascular techniques have become an essential tool for the treatment of descending thoracic aortic disease (thoracic endovascular aneurysm repair [TEVAR]). The aim is to analyze the indications and outcomes of emergency TEVAR at national level in relation to elective surgery. Study design and scope A retrospective multicenter registry of patients with descending thoracic aortic disease treated on an emergency basis using endovascular techniques between 2012-2016, in 11 clinical units. Patients, inclusion criteria 1) Ruptured descending thoracic aortic aneurysms; 2) Blunt traumatic thoracic aortic injury; and 3) Complicated acute type B aortic dissections (TBADc). Primary variables Patient mortality, survival and reoperation rate. Secondary variables Demographic data, cardiovascular risk factors, specific data by indication, technical resources and postoperative complications. Results A total of 135 urgent TEVARs were included (111 men, mean age 60.4 ± 16.3 years): 43 ruptured thoracic aortic aneurysms (31.9%), 54 type B dissections (40%) and 32 traumatic aortic injuries (23.7%), and other etiologies 4.4%. The overall mortality rate at 30 days was 18.5%, and proved higher in the ruptured descending thoracic aortic aneurysms group (27.9%). The mean actuarial survival rate was 67± 6% at 5 years. The postoperative stroke rate was 5.2%, and the paraplegia rate was 5.9%. Aortic reoperations proved necessary in 12 patients (9%). Conclusions Emergency descending thoracic aortic diseases can be treated by endovascular techniques with optimal results and low morbidity and mortality – though the figures are slightly higher than in elective cases. This registry provides, for the first time, real information on the daily clinical practice of emergency TEVAR in Spain. (AU)

Unibody design for aortic disease with a narrow aortic bifurcation: tips and tricks for success / Design unimodular para doença da aorta com bifurcação aórtica estreita: dicas para o sucesso

Abstract Background Surgical management of patients with abdominal aortic diseases associated with distal narrowing is a challenging situation. Objectives To evaluate outcomes of unibody bifurcated endovascular stent graft repair. Methods This is a retrospective, observational, multi-institutional database study of a cohort of consecutive cases, approved by the local Ethics Committee. Records were reviewed of patients diagnosed from 2010 to 2020 with "shaggy" aorta, saccular aneurysm, penetrating aortic ulcer, and isolated aortic dissection located in the infrarenal abdominal aorta. All patients were treated with a unibody bifurcated stent graft. Main outcomes were technical success, procedure complications, long-term patency, and mortality in the follow-up period up to 5 years. Data on demographics, comorbidities, surgical management, and outcomes were analyzed. Results Twenty-three patients were treated with unibody bifurcated stent graft repair, including 7 cases of "shaggy" aorta, 3 isolated dissections of the abdominal aorta, 4 penetrating aortic ulcers, and 9 saccular aneurysms. Immediate technical success was achieved in 100% of cases. At follow-up, all stent grafts remained patent and there were no limb occlusions. The patients were symptom-free and reported no complications related to the procedure. There were 5 deaths during the follow-up period (median= 4 years), but none were related to the procedure and there were no aorta-related deaths. Conclusions The present study shows that unibody bifurcated stent grafting is safe and effective in this group of patients with narrow distal abdominal aorta and complex aortic pathology. The results were similar for both infrarenal aortic aneurysms and aorto-iliac atherosclerotic disease.

Resumo Contexto O manejo cirúrgico de pacientes com doenças da aorta abdominal associadas ao estreitamento distal é desafiador. Objetivos Avaliar os desfechos do reparo endovascular com endoprótese bifurcada do tipo monobloco. Métodos Foi realizado um estudo retrospectivo, de coorte observacional, de banco de dados multi-institucional, com casos consecutivos, após aprovação pelo Comitê de Ética local. Foram analisados prontuários de pacientes com diagnóstico de shaggy aorta, aneurisma sacular, úlcera penetrante da aorta e dissecção isolada da aorta localizados na aorta abdominal infrarrenal entre 2010 e 2020; todos os pacientes foram tratados com endoprótese bifurcada do tipo monobloco. Os principais desfechos foram sucesso técnico, complicações relacionadas ao procedimento, perviedade de longo prazo e mortalidade no seguimento de até 5 anos. Foram incluídos dados demográficos, comorbidades, manejo cirúrgico e desfechos. Resultados Vinte e três pacientes foram tratados com endoprótese bifurcada do tipo monobloco, incluindo 7 casos de shaggy aorta, 3 dissecções isoladas da aorta abdominal, 4 úlceras penetrantes da aorta e 9 aneurismas saculares. Sucesso técnico imediato foi obtido em 100% dos casos. No seguimento, todas as endopróteses permaneceram pérvias e não houve oclusões de membros. Os pacientes estavam sem sintomas e não relataram complicações relacionadas ao procedimento. Ocorreram 5 óbitos durante o seguimento (mediana = 4 anos), mas nenhum relacionado ao procedimento ou à aorta. Conclusões O presente estudo mostra que a endoprótese bifurcada do tipo monobloco é segura e eficaz neste grupo de pacientes com estreitamento distal da aorta abdominal e patologia aórtica complexa. Os resultados foram semelhantes para aneurismas da aorta infrarrenal e doença aterosclerótica aortoilíaca.

Abordagem endovascular de lesão de aorta torácica penetrante - relato de caso / Endovascular treatment of penetrating thoracic aorta injury - case report

Resumo O cenário atual do trauma por causas violentas tem apresentado um elevado número de casos. Entre eles, a lesão de aorta torácica por trauma penetrante é uma condição de elevada morbimortalidade que exige diagnóstico adequado e que, nos últimos anos, tem sido corrigida com procedimentos endovasculares. Essa modalidade de tratamento se mostra mais segura, com menor número de complicações em relação ao procedimento cirúrgico aberto. Após a realização da abordagem endovascular, há necessidade de acompanhamento contínuo, que visa monitorar as condições de saúde do paciente e corrigir possíveis complicações relacionadas ao procedimento. O objetivo deste artigo é relatar um caso de traumatismo penetrante de aorta torácica, tratado por via endovascular, visto que a literatura aborda predominantemente as lesões por trauma contuso.

Abstract In the current scenario, traumas with violent causes are responsible for large numbers of cases. Among these, thoracic aorta injury caused by penetrating trauma is a cause of elevated morbidity and mortality, demanding adequate diagnosis, and can now often be repaired using endovascular procedures. This treatment method has proven to be safer, with a lower rate of complications than open surgical procedures. After endovascular repair, it is necessary to conduct continuous monitoring of the patient's health and correct any complications related to the procedure that may emerge. The objective of this article is to describe a case of penetrating trauma of the thoracic aorta that was treated endovascularly, since the literature predominantly covers blunt trauma injuries.

Endovascular Treatment of Ruptured Vertebral Artery Dissecting Aneurysm in Fibromuscular Dysplasia

Background Fibromuscular dysplasia (FMD) affects predominantly the cervical and renal arteries and may cause the classical angiographic pattern of string-of-beads. The diagnosis is increasing with the advances of imaging techniques. Case Report A 37-year-old man presenting with subarachnoid hemorrhage due to a dissecting aneurysm of the vertebral artery was treated by angioplasty with stent, with good outcome. All of the cervical and renal arteries were diseased and showed dysplasia and/or ectasias. Conclusions There are no guidelines or protocols to treat patients with FMD.

The influence of blood pressure management on neurological outcome in endovascular therapy for acute ischaemic stroke.

BACKGROUND: Observational studies have suggested that low blood pressure and blood pressure variability may partially explain adverse neurological outcome after endovascular therapy with general anaesthesia (GA) for acute ischaemic stroke. The aim of this study was to further examine whether blood pressure related parameters during endovascular therapy are associated with neurological outcome. METHODS: The GOLIATH trial randomised 128 patients to either GA or conscious sedation for endovascular therapy in acute ischaemic stroke. The primary outcome was 90 day modified Rankin Score. The haemodynamic protocol aimed at keeping the systolic blood pressure >140 mm Hg and mean blood pressure >70 mm Hg during the procedure. Blood pressure related parameters of interest included 20% reduction in mean blood pressure; mean blood pressure <70 mm Hg, <80 mm Hg, and <90 mm Hg, respectively; time with systolic blood pressure <140 mm Hg; procedural minimum and maximum mean and systolic blood pressure; mean blood pressure at the time of groin puncture; postreperfusion mean blood pressure; blood pressure variability; and use of vasopressors. Sensitivity analyses were performed in the subgroup of reperfused patients. RESULTS: Procedural average mean and systolic blood pressures were higher in the conscious sedation group (P<0.001). The number of patients with mean blood pressure <70-90 mm Hg and systolic blood pressure <140 mm Hg, blood pressure variability, and use of vasopressors were all higher in the GA group (P<0.001). There was no statistically significant association between any of the examined blood pressure related parameters and the modified Rankin Score in the overall patient population, and in the subgroup of patients with full reperfusion. CONCLUSION: We found no statistically significant association between blood pressure related parameters during endovascular therapy and neurological outcome. CLINICAL TRIAL REGISTRATION: NCT 02317237.

Thermal and Nonthermal Endovenous Ablation Options for Treatment of Superficial Venous Insufficiency.

Open saphenous removal, phlebectomy, and venous ligation were historic mainstays of surgical treatment of venous disease. Duplex ultrasound has become standard to diagnose venous insufficiency. Percutaneous modalities have allowed treatments to include thermal and nonthermal endovenous ablation. These treatments vary in preoperative planning, procedural steps, and postprocedural care, but all are safe and effective. An individualized approach should be taken in determining which modality is offered to each patient. Endovenous options, which often are minimally invasive and safely performed in an outpatient setting, allow access to effective treatments with low risk and discomfort.

Abordagem do paciente com dm e doença ateromatosa em outros territórios: carótidas / Approach to the patient with dm and atheromatous disease in other territories: carotid arteries

A doença ateromatosa carotídea é responsável por até 15% de todos os acidentes vasculares cerebrais (AVC). O diabetes é um dos fatores de risco cardiovasculares mais importantes para o início e progressão da aterosclerose carotídea. O controle precoce do diabetes e dos demais fatores de risco cardiovasculares concomitantes constituem-se na intervenção mais custo-efetiva para prevenir o AVC nesses casos. O tratamento clínico, atualmente, é considerado como primeira escolha para os pacientes com estenoses carotídeas assintomáticas. Entretanto, nos pacientes com estenoses sintomáticas superiores a 70%, a endarterectomia apresenta alto impacto no desfecho cardiovascular. O procedimento endovascular com stent com filtro para neuroproteção é uma opção quando a cirurgia convencional não é possível.

Carotid atheromatous disease is responsible for up to 15% of all strokes. Diabetes is one of the most important cardiovascular risk factors for the onset and progression of carotid atherosclerosis. Early control of diabetes and other concomitant cardiovascular risk factors is the most cost-effective intervention to prevent stroke in these cases. Clinical treatment is currently considered the first choice for patients with asymptomatic carotid stenoses. However, in patients with symptomatic stenosis with more than 70% of obstruction, endarterectomy has a high impact on the cardiovascular outcome. The endovascular procedure with stent with filter for neuroprotection is a good option when conventional surgery is not possible.

TEVAR for ruptured descending thoracic aortic aneurysm: case report / TEVAR para aneurisma roto da aorta torácica descendente: relato de caso

Abstract A ruptured descending thoracic aortic aneurysm (rDTAA) is a life-threatening condition associated with high morbidity and mortality. Endovascular treatment for rDTAA promotes effective aneurysm exclusion with a minimally invasive approach. The authors report a case of a 76-year-old man with hemodynamically unstable 9-cm-diameter rDTAA treated with emergency thoracic endovascular aortic repair (TEVAR).

Resumo O aneurisma roto de aorta torácica descendente constitui uma situação ameaçadora associada a alta morbidade e mortalidade. O tratamento endovascular desse tipo de aneurisma promove exclusão eficaz com uma terapêutica minimamente invasiva. Os autores relatam o caso de um paciente do sexo masculino, 76 anos, hemodinamicamente instável, com aneurisma roto de aorta torácica descendente de 9 cm de diâmetro, tratado em caráter emergencial por cirurgia endovascular.

Cirurgia aberta e endovascular no tratamento de aneurisma de artéria poplítea: experiência de cinco anos do HCRP-FMRP-USP / Open versus endovascular surgery for treatment of popliteal artery aneurysms: 5 years’ experience at the HCRP-FMRP-USP

Aneurismas de artéria poplítea (AAPs) correspondem a 70,00% dos aneurismas periféricos. A indicação cirúrgica é para aneurismas com diâmetros maiores que 2,0 cm ou sintomáticos. O tratamento é feito por técnicas cirúrgicas convencionais ou endovasculares. Esta última tem ganho muitos adeptos, mas ainda não há consenso estabelecido sobre sua indicação. Objetivo Apresentar a experiência da Divisão de Cirurgia Vascular e Endovascular do Hospital das Clínicas de Ribeirão Preto da Universidade de São Paulo no tratamento dos AAPs. Método Foram revisados casos de reparo convencional e endovascular de AAPs tratados nos últimos cinco anos, avaliando dados demográficos, comorbidades, indicação cirúrgica, complicações pré e pós-operatórias precoces e tardias, tempo de internação e de perviedade em até um ano. Resultados Foram realizadas no período dez cirurgias endovasculares (CE) e 21 cirurgias abertas (CA). O grupo CE teve maior frequência de comorbidades. Houve maior frequência de pacientes sintomáticos no grupo CA (85,00%) do que no grupo CE (40,00%). O Grupo CE apresentou menor número de complicações clínicas e cirúrgicas. A idade entre os grupos e o tempo de internação de cada grupo não apresentaram diferença estatística. A perviedade primária em um ano no Grupo CE foi de 80,00%, enquanto no Grupo CA foi de 75,00%. Conclusão O tratamento endovascular para AAPs apresenta bons resultados, em termos de perviedade com taxas de complicações aceitáveis, em pacientes com risco cirúrgico elevado e anatomia favorável, justificando, assim, a necessidade de mais estudos controlados para modificar a posição da técnica endovascular como uma terapia alternativa para casos selecionados.

Popliteal artery aneurysms (PAAs) account for 70% of peripheral aneurysms. Surgery is indicated for aneurysms that have diameters greater than 2.0 cm or are symptomatic. Repair can be achieved by conventional surgical techniques or using endovascular methods, which are becoming increasingly popular, but for which there is not yet a consensus on indications. Objective To describe the experience of treating PAAs at the vascular and endovascular surgery department of the Hospital das Clínicas de Ribeirão Preto, affiliated to the Universidade de São Paulo (Brazil). Method A review was conducted of cases of conventional and endovascular repair of PAAs over the last 5 years, analyzing demographic data, comorbidities, surgical indications, preoperative and early and late postoperative complications, length of hospital stay and patency, during follow-up of up to 1 year. Results During the period analyzed, ten endovascular surgeries (ES) and 21 open surgeries (OS) were performed. The ES group exhibited a higher frequency of comorbidities. There was a higher frequency of symptomatic patients in the OS group (85%) than in the ES group (40%). The ES group exhibited a lower number of clinical and surgical complications. There were no statistical differences between the groups in terms of age or length of hospital stay. Primary patency at 1 year was 80% in the ES group and 75% in the OS group. Conclusions Endovascular treatment for PAAs offers good results in terms of patency, with acceptable complication rates, in patients with high surgical risk and favorable anatomy. Controlled studies are therefore warranted to validate the endovascular technique and afford it the status of an alternative procedure for use in selected cases.

Tratamento endovascular de sangramento tardio pós tonsilectomia / Endovascular treatment of delayed bleeding after tonsillectomy

A tonsilectomia é um dos procedimentos mais realizados por otorrinolaringologistas e possui como principal complicação a hemorragia. Alguns casos podem se manifestar tardiamente e se relacionam com a formação de pseudoaneurismas. Apesar de rara, essa é uma complicação grave e pode levar ao óbito se não tratada devidamente. Em casos de sangramento significativo, as reintervenções cirúrgicas são necessárias, sendo as 3 formas mais comuns: sutura, cauterização ou por tratamento endovascular. O nosso estudo tem por objetivo apresentar o histórico de uma paciente de 28 anos, sexo feminino, com sangramento maciço pós tonsilectomia no 31º dia de pós-operatório. Foi realizada abordagem endovascular e diagnosticada lesão em artéria facial esquerda. O tratamento definitivo foi por embolização seletiva de artéria facial com micromola e partículas de polivinil álcool (P.V.A.) 500 μm, nessa ordem de utilização, a fim de evitar-se embolização distal. O método endovascular mostrou-se seguro, definitivo e seletivo.

Tonsillectomy is one of the most common procedures that otorhinolaryngologists perform. Hemorrhages are the principal complication. Some cases of hemorrhage can have delayed onset and these are related to formation of pseudoaneurysms. While this complication is rare, it is serious and can be fatal if it is not treated correctly. In cases with significant bleeding, surgical reintervention is needed and the 3 most common methods are suture, cauterization and endovascular treatment. The objective of this article is to report on the case of a 28-year-old female patient with massive post-tonsillectomy bleeding 31 days after the operation. An endovascular approach was taken and an injury to a left facial artery was diagnosed. Definitive treatment was achieved by selective embolization of the facial artery with microcoils and 500 μm particles of polyvinyl alcohol (P.V.A.), in that sequence, in order to avoid distal embolization. The endovascular method proved to be safe, selective and definitive.

Correção endovascular de pseudoaneurisma toracoabdominal em paciente com Doença de Behçet / Endovascular repair of a thoracoabdominal pseudoaneurysm in a patient with Behçet’s disease

A Doença de Behçet é uma doença inflamatória caracterizada por úlceras genitais e orais recorrentes, uveítes e lesões cutâneas. O envolvimento arterial é raro, sendo mais comuns as degenerações aneurismáticas do que as oclusivas. Neste caso clínico, paciente do sexo feminino, em tratamento de doença de Behçet havia 20 anos, iniciou com dor abdominal progressiva por dois meses, com piora súbita importante, foi submetida à tomografia computadorizada, que mostrou pseudoaneurisma toracoabdominal. A paciente foi submetida a tratamento endovascular com sucesso.

Behçet’s disease is an inflammatory disease characterized by recurrent oral and genital ulcers, uveitis and skin lesions. Arterial involvement is rare, but when present aneurysmal degeneration is more common than occlusive disease. This report describes the clinical case of a female patient who had been receiving treatment for Behçet’s disease for twenty years before presenting with abdominal pain that progressed for 2 months before suddenly worsening significantly. A CT scan revealed a thoracoabdominal pseudoaneurysm. She was successfully treated with endovascular repair.

Completeness of Follow-Up Determines Validity of Study Findings: Results of a Prospective Repeated Measures Cohort Study.

BACKGROUND: Current reporting guidelines do not call for standardised declaration of follow-up completeness, although study validity depends on the representativeness of measured outcomes. The Follow-Up Index (FUI) describes follow-up completeness at a given study end date as ratio between the investigated and the potential follow-up period. The association between FUI and the accuracy of survival-estimates was investigated. METHODS: FUI and Kaplan-Meier estimates were calculated twice for 1207 consecutive patients undergoing aortic repair during an 11-year period: in a scenario A the population's clinical routine follow-up data (available from a prospective registry) was analysed conventionally. For the control scenario B, an independent survey was completed at the predefined study end. To determine the relation between FUI and the accuracy of study findings, discrepancies between scenarios regarding FUI, follow-up duration and cumulative survival-estimates were evaluated using multivariate analyses. RESULTS: Scenario A noted 89 deaths (7.4%) during a mean considered follow-up of 30±28months. Scenario B, although analysing the same study period, detected 304 deaths (25.2%, P<0.001) as it scrutinized the complete follow-up period (49±32months). FUI (0.57±0.35 versus 1.00±0, P<0.001) and cumulative survival estimates (78.7% versus 50.7%, P<0.001) differed significantly between scenarios, suggesting that incomplete follow-up information led to underestimation of mortality. Degree of follow-up completeness (i.e. FUI-quartiles and FUI-intervals) correlated directly with accuracy of study findings: underestimation of long-term mortality increased almost linearly by 30% with every 0.1 drop in FUI (adjusted HR 1.30; 95%-CI 1.24;1.36, P<0.001). CONCLUSION: Follow-up completeness is a pre-requisite for reliable outcome assessment and should be declared systematically. FUI represents a simple measure suited as reporting standard. Evidence lacking such information must be challenged as potentially flawed by selection bias.

Síndrome da congestão venosa pélvica e resultados do tratamento endovascular: série de casos / Pelvic congestion syndrome case series: results of endovascular treatment

A Síndrome da Congestão Venosa Pélvica (SCVP) é uma causa de dor pélvica crônica, que afeta principalmente mulheres multíparas em idade reprodutiva. Para o tratamento desta síndrome, a embolização de varizes pélvicas tem demonstrado excelentes resultados. Relatamos uma série inicial de pacientes submetidas a tratamento com embolização de varizes pélvicas e os respectivos resultados de acompanhamento pós-operatório. São apresentados dados clínicos, detalhes do procedimento e resultados do acompanhamento e de exames de imagem de seis pacientes. Dentre estas pacientes, o sucesso técnico foi de 100% e não houve relato de complicações trans ou pós-operatórias graves. Em todos os casos, pôde-se observar alívio dos sintomas e melhora nos resultados de exames de imagens no acompanhamento de curto prazo. Os resultados nesta pequena série de casos indicam que a embolização é um tratamento seguro e efetivo para a SCVP.

Pelvic Congestion Syndrome (PCS) is a cause of chronic pelvic pain that primarily affects multiparous women of reproductive age. Embolization of pelvic varicose veins offers excellent results for treatment of this syndrome. We describe an initial series of patients treated with embolization of pelvic varicose veins and their respective postoperative follow-up results. We provide clinical data, details of the procedures performed and results of follow-up and imaging exams for six patients. The technical success rate with these patients was 100% and there were no reports of serious intraoperative or postoperative complications. In all cases there was relief from symptoms and improvements in the results of imaging exams during short-term follow-up. The results of this small series of cases indicate that embolization is a safe and effective treatment for PCS.

Vascular ultrasonography for follow-up of endovascular repair of abdominal aorta aneurysms / Ultrassonografia vascular no seguimento da correção endovascular do aneurisma da aorta abdominal

Background There is little information available on follow-up of abdominal aortic aneurysm patients treated with endovascular repair using vascular ultrasonography in Brazil or on how it compares with the results of angiotomography. Since ultrasonography is an examination that is risk-free, inexpensive and widely available, it is a very attractive method. In this study we attempted to evaluate the sensitivity and specificity of vascular ultrasonography for follow-up of these patients by comparing the method with angiotomography. Materials and methods We conducted a prospective study from June 2012 to May 2013. We examined patients followed-up at the endovascular surgery clinic run by the University Hospital of Londrina after endovascular repair of abdominal aortic aneurysms. All patients underwent angiotomography for follow-up and were also examined using simple abdominal X-rays and vascular ultrasonography. Results A total of 30 patients were analyzed, with a mean age of 73 years and a mean aneurysm diameter of 6 cm. Four endoleaks were detected. Vascular ultrasonography achieved sensitivity of 75% and specificity of 96% for classification of these endoleaks, in comparison with angiotomography. Conclusions Vascular ultrasonography is an excellent primary method for evaluation and post-surgical follow-up of patients treated with endovascular repair of abdominal aorta aneurysms. However, when ultrasonography detects problems or is difficult to accomplish, it should be supplemented with a more specific investigation for diagnostic confirmation...

Contexto As informações sobre o seguimento de pacientes submetidos à correção endovascular de aneurisma de aorta abdominal com ultrassonografia vascular no Brasil são escassas, bem como sua comparação com os resultados obtidos com a angiotomografia. Na medida em que a ultrassonografia é um exame sem riscos, de baixo custo e de grande disponibilidade, esta se torna um método bastante atraente. Na presente pesquisa, procuramos avaliar a sensibilidade e a especificidade da ultrassonografia vascular (USV) no acompanhamento desses pacientes, comparando este método com a angiotomografia. Materiais e métodos Realizamos estudo prospectivo durante o período de junho de 2012 a maio de 2013. Para tanto, examinamos pacientes acompanhados pelo Ambulatório de Cirurgia Endovascular do Hospital Universitário de Londrina pós-correção endovascular de aneurisma de aorta abdominal. Todos os pacientes haviam sido submetidos à angiotomografia para acompanhamento e foram também avaliados através da radiografia abdominal (raio x simples) e da ultrassonografia vascular. Resultados Foram analisados 30 pacientes, com média de idade de 73 anos, com diâmetro médio do aneurisma de 6 cm, detectando-se quatro vazamentos endovasculares. Na avaliação desses vazamentos endovasculares, a ultrassonografia vascular obteve uma sensibilidade de 75% e uma especificidade de 96%, em relação à angiotomografia. Conclusão A ultrassonografia vascular é um excelente método primário na avaliação e no acompanhamento pós-cirúrgico de pacientes submetidos à correção endovascular do aneurisma da aorta abdominal (AAA). No entanto, em caso de alteração ultrassonográfica ou dificuldade na realização do exame, uma investigação mais específica deve...

Endovascular repair of a juxtarenal saccular aneurysm using the Multilayer Flow Modulator: report of the first case performed in a Public Hospital in Brazil / Tratamento de aneurisma de aorta sacular justarrenal com Multilayer Flow Modulator: relato do primeiro caso realizado em Hospital Público no Brasil

Endovascular treatment of abdominal aortic aneurysms (AAA), involving the exits of the renal and visceral arteries still constitutes a considerable challenge. Many different techniques have been developed over the years in attempts to surmount the difficulties presented by these cases. Techniques that have gained prominence include fenestrated or branched stents, methods involving parallel prostheses, such as the chimney, periscope and sandwich techniques, and, more recently, flow modulation with Multilayer stents. We describe a case of a complex juxtarenal saccular AAA with a high surgical risk, both according to cardiological assessment and because the patient had a difficult airway caused by a total laryngectomy for early stage laryngeal neoplasm. In view of the technical simplicity of using Multilayer stents, the presence of chronic obstructive aortoiliac disease, ostial stenosis of the renal artery and a small diameter suprarenal aorta, options involving fenestrated/branched stents and techniques involving parallel prostheses were ruled out, because of the need for multiple accesses. In view of the dilemma it presented, we describe this case as a therapeutic challenge and present the treatment option employed, which has been successful over the short term...

O tratamento endovascular de aneurismas de aorta abdominal (AAA), envolvendo a saída das artérias renais e viscerais, constitui ainda um importante desafio. Diversas técnicas foram desenvolvidas ao longo do tempo para contornar as dificuldades oferecidas por esta situação, destacando-se as endopróteses fenestradas ou ramificadas, as técnicas envolvendo próteses paralelas, como Chaminé, Periscópio e Sanduíche, e, mais recentemente, a utilização da modulação de fluxo por stent multicamadas Multilayer. Apresentamos um caso de AAA sacular complexo justarrenal e com alto risco cirúrgico pela avaliação cardiológica e por apresentar via aérea difícil, em decorrência de laringectomia total por antecedente de neoplasia de laringe. Devido à facilidade técnica do uso do Multilayer, à presença de doença obstrutiva crônica aorto-ilíaca, à estenose ostial renal e ao diâmetro limitado da aorta suprarrenal, descartaram-se as opções envolvendo endopróteses fenestradas/ramificadas ou técnicas envolvendo próteses paralelas, pela necessidade de diversos acessos para a execução. Diante do dilema imposto, apresentamos este caso como desafio terapêutico e com uma opção de tratamento bem sucedida, em curto prazo...

Treatment of critical lower limb ischemia using a hybrid technique / Tratamento de isquemia crítica de membro inferior com técnica híbrida

Critical ischemia of a lower limb is a condition that threatens its viability and must be treated promptly to avoid major amputation. Revascularization is the most effective treatment method and is performed using surgical or endovascular techniques. For patients with thoracoabdominal aortic aneurysms, combining these two approaches into a "hybrid technique" makes it possible to treat patients who could not be adequately treated by either technique in isolation. We report on a case of lower limb critical ischemia treated using a combination of surgery and endovascular techniques, in an application of the hybrid technique in a different arterial bed...

A isquemia crítica de membro inferior é uma condição que constitui uma ameaça à viabilidade do membro e deve ser prontamente tratada para evitar uma amputação maior. A revascularização é o tratamento mais eficaz, podendo ser por técnica cirúrgica ou endovascular. Nos pacientes com aneurisma toracoabdominal da aorta, a combinação das duas técnicas, denominada técnica híbrida, permite ampliar a possibilidade de tratamento de pacientes que não seriam adequadamente tratados por nenhuma das duas técnicas isoladamente. Descrevemos o tratamento de uma isquemia crítica de membro inferior utilizando a combinação de cirurgia convencional e tratamento endovascular, também se constituindo, assim, em uma técnica híbrida, mas em outro território arterial...

Randomized clinical trial of endovenous laser ablation versus steam ablation (LAST trial) for great saphenous varicose veins.

BACKGROUND: The aim was to compare endovenous laser ablation (EVLA) and endovenous steam ablation (EVSA) for great saphenous varicose veins in a non-inferiority study. METHODS: Patients with primary great saphenous vein reflux were randomized to EVLA (940 nm) or EVSA (SVS™). Primary outcomes were treatment success (vein obliteration or abolition of reflux) [corrected] at 52 weeks, and Venous Clinical Severity Score (VCSS) at 12 weeks. Secondary outcomes were pain, satisfaction with treatment, duration of analgesia use and days lost from daily activities, changes in Aberdeen Varicose Vein Questionnaire (AVVQ) and EQ-5D™ scores after 12 weeks, and complications at 2 and 12 weeks. RESULTS: A total of 227 legs were treated (EVSA, 117; EVLA, 110); 36 legs treated with EVSA received a low dose and the remaining 81 a higher dose. At 1 year, the treatment success rate after high-dose EVSA was not inferior to that of EVLA: 92 (95 per cent confidence interval (c.i.) 86 to 98) versus 96 (92 to 100) per cent respectively. Changes in VCSS after 12 weeks were similar: -2·69 (95 per cent c.i. -2·34 to -3·04) and -2·51 (-2·10 to -2·93). AVVQ, EQ-5D™ and EQ VAS scores improved equally 12 weeks after both treatments. Patients treated with EVSA reported less postprocedural pain, fewer days of analgesia use, were more satisfied with therapy, and had a shorter convalescence. Complication rates were comparable. CONCLUSION: The 1-year treatment success of high-dose EVSA was not inferior to that of EVLA. Several secondary outcomes were in favour of EVSA. Registration number NCT02046967 (http://www.clinicaltrials.gov).

Endovascular treatment of iatrogenic penetrating trauma of the carotid artery: case report / Tratamento endovascular de trauma penetrante iatrogênico de artéria carótida: relato de caso

Carotid trauma demands early diagnosis and treatment. Open repair may be technically challenging if the trauma is at the base of the neck. We present a case of iatrogenic penetrating carotid trauma caused by insertion of a hemodialysis catheter. Treatment was accomplished by placement of a covered stent-graft in the common carotid artery, covering the puncture site. This case suggests that placement of a covered stent-graft is a good option for treatment of iatrogenic injury to the carotid artery...

O trauma da carótida exige diagnóstico e tratamento precoces. O tratamento convencional pode ser tecnicamente desafiador se o trauma penetrante for na base do pescoço. Apresentamos um caso de trauma penetrante da carótida associado ao implante iatrogênico de um cateter para hemodiálise. O tratamento foi realizado através da colocação de uma endoprótese na artéria carótida comum, cobrindo o local da punção. Este caso sugere que a colocação de uma endoprótese é uma boa opção para o tratamento de lesão iatrogênica da artéria carótida...

Endovascular treatment of occlusive central venous disease: one center's experience / Tratamento endovascular da doença venosa oclusiva central: experiência de um centro

INTRODUCTION: The majority of cases of stenosis or occlusion of central veins are the result of central catheters, arteriovenous fistulas, neoplasms or traumas and these conditions can cause severe cases of venous hypertension or reduce the flow through fistulas. The objective of this study is to analyze the results of central venous angioplasties conducted at our hospital. METHODOLOGY: We conducted a retrospective and descriptive study to analyze the results of central venous angioplasties conducted from 2010 to 2012 at a university hospital run by the Universidade Estadual de Londrina, Brazil. We calculated primary and secondary success rates and analyzed whether or not stents were used and complications occurred during a 6-month follow-up period. RESULTS: A total of 25 central venous angioplasties were conducted. Twenty-four (96%) of these were because of catheter-related intimal hyperplasia and one was to treat the effects of compression by a tumor. Fifteen (60%) angioplasties were to correct stenosis and ten (40%) were because of occlusions, with a one-hundred percent success rate for all stenosis-related procedures. However, none of the cases of occlusion could be treated endovascularly. Patency during the 6-months follow-up period was 80% after reinterventions. CONCLUSIONS: Despite good results observed after primary interventions for stenoses, it must be accepted that all current treatment options for chronic occlusive venous disease will, sooner or later, lead to restenosis or occlusion. Venous occlusions constitute a challenge demanding the development of new techniques and new materials. Prevention is paramount, through avoidance of central catheterization and early creation of arteriovenous fistulas...

INTRODUÇÃO: A estenose ou a oclusão de veias centrais ocorre, na maioria das vezes, em consequência de catéteres centrais, fístulas arteriovenosas, neoplasias e traumas, podendo levar a quadros severos de hipertensão venosa e de redução do débito dessas fístulas. O presente trabalho tem como objetivo analisar os resultados obtidos nas angioplastias venosas centrais em nosso hospital. METODOLOGIA: Realizamos um estudo retrospectivo, descritivo, analisando os resultados obtidos nas angioplastias venosas centrais realizadas no Hospital Universitário da Universidade Estadual de Londrina durante os anos de 2010 a 2012. Verificamos as taxas de sucesso primário e secundário, a utilização ou não de stents e as complicações, analisadas durante um período de acompanhamento de seis meses. RESULTADOS: Foram realizadas 25 angioplastias venosas centrais, sendo 24 (96%) por hiperplasia intimal relacionada ao uso de catéteres e uma por compressão tumoral. Destas, 15 (60%) eram estenoses e dez (40%) eram oclusões, obtendo-se sucesso primário técnico em todos os procedimentos relacionados à estenose. Contudo, nenhum caso de oclusão pode ser tratado por via endovascular. No acompanhamento de seis meses, após reintervenções, observamos perviedade de 80%. CONCLUSÃO: Apesar dos bons resultados observados nas intervenções primárias sobre as estenoses, indiscutivelmente todas as opções atuais para o tratamento da doença venosa oclusiva crônica irão levar, precoce ou tardiamente, à reestenose ou à oclusão. As oclusões venosas constituem uma incitação para o desenvolvimento de novas técnicas e novos materiais. A prevenção assume papel preponderante, com redução da implantação de catéteres...

Two-stage hybrid open-endovascular repair of a Crawford type IV aortic aneurysm: therapeutic challenge / Tratamento híbrido (debranching) de aneurisma tóraco-abdominal tipo IV de Crawford: desafio terapêutico

We present a case of a patient with Crawford type IV aortic thoracoabdominal aneurysm. The patient underwent hybrid repair in two stages. Initially a Dacron(r) graft was implanted surgically with revascularization of all visceral branches from the left external iliac artery (debranching). On a later date, the second stage of treatment was with an endovascular technique with bi aorto-iliac endoprosthesis. After 2 years the patient remains asymptomatic and in full working activity...

Apresentamos o caso de um paciente com aneurisma aórtico tóraco-abdominal tipo IV de Crawford submetido à correção híbrida em dois estágios. Inicialmente submetido a implante cirúrgico de prótese de Dacron® com revascularização de todos os ramos viscerais a partir da ilíaca externa esquerda (debranching) e, posteriormente, tratado pela técnica endovascular com endoprótese aorto bi-ilíaca. Após dois anos, o paciente permanece assintomático e em plena atividade laborativa...