The outcomes of internal iliac artery preservation during endovascular or open surgery treatment for aortoiliac aneurysms / Os resultados da preservação da artéria ilíaca interna durante o tratamento endovascular ou em cirurgia aberta para aneurismas aorto-ilíacos

Abstract Background Internal iliac artery (IIA) preservation continues to be a challenge during open surgery or endovascular repair of abdominal aortoiliac aneurysm (AAIA). Objectives To determine the results in terms of survival and clinical outcomes in patients with aortoiliac aneurysms (AAIA) treated with endovascular (EV) or open surgical (OS) repair. Methods This was a retrospective consecutive cohort study of patients with AAIA who underwent EV or OS repair. Results Post-procedure hospitalization time and intensive care unit stay were both longer in the OS group than in the EV group (7.08 ± 3.5 days vs. 3.32 ± 2.3 days; p = 0.03; 3.35 ± 2.2 days vs. 1.2 ± 0.8 days; p = 0.02, respectively). There were two cases of bowel ischemia (4.7%; OS 8.3% and EV 3.2%; p = 0.48), two cases of buttock claudication (4.7%; OS 8.3% and EV 3.2%; p = 0.48), and one case of sexual dysfunction (2.3% OS), all of them in patients with bilateral occlusion of the internal iliac artery (five patients, 11.6%; p = 0.035). Overall survival at 720 days was 80.6% in the EV group and 66.7% in the OS group (p = 0.58). Conclusions In the present study, OS and EV repair of aortoiliac aneurysms had similar overall survival and outcomes. Preservation of at least one internal iliac artery is associated with good results and no further complications.

Resumo Contexto A preservação de uma artéria ilíaca interna continua a ser um desafio terapêutico nos pacientes com aneurismas aorto-ilíacos submetidos tanto ao tratamento endovascular quanto a cirurgia aberta. Objetivos Determinar os resultados da sobrevida e desfechos clínicos em pacientes com aneurismas aorto-ilíacos (AAIA) que recebem reparo endovascular (EV) ou cirúrgico aberto (CA). Métodos Este foi um estudo de coorte consecutivo e retrospectivo de pacientes com AAIA submetidos a reparo EV ou CA. Resultados Houve maior tempo de internação pós-procedimento e permanência na unidade de terapia intensiva no grupo CA comparado com o grupo EV (7,08±3,5 dias vs. 3,32±2,3 dias; p = 0,03; 3,35±2,2 dias vs. 1,2±0,8 dias; p = 0,02, respectivamente). Houve dois casos de isquemia intestinal (4,7%; CA 8,3% e EV 3,2%; p = 0,48), dois casos de claudicação das nádegas (4,7%; CA 8,3% e EV 3,2%; p = 0,48) e um caso de disfunção sexual (2,3% CA), todos em pacientes com oclusão bilateral da artéria ilíaca interna (AII) (cinco pacientes, 11,6%; p = 0,035). A sobrevida global aos 720 dias foi de 80,6% no grupo EV e de 66,7% no grupo CA (p = 0,58). Conclusões No presente estudo, o EV e o CA para aneurismas aorto-ilíacos apresentaram sobrevida e desfechos clínicos semelhantes. A preservação de pelo menos uma AII está associada a bons resultados e sem complicações adicionais.

Endovascular treatment of internal iliac artery aneurysms: single center experience

Abstract Objective: Internal iliac artery aneurysms (IIAA) are rare, representing only 0.3% of aortoiliac aneurysms. Its treatment with open surgery is complex and associated with high morbidity and mortality, which led to increasing application of endovascular solutions. In this study, we aimed to evaluate outcomes of endovascular aneurysm repair (EVAR) of IIAA in one institution. Methods: We retrospectively reviewed all cases of IIAA treated with endovascular techniques between 2003 and 2014. Endpoints were morbidity, mortality, freedom from pelvic ischemic symptoms (buttock claudication, ischemic colitis, and spinal cord injury), and need for reintervention. Results: There were 16 patients, 13 males and 3 females, with mean age of 75.1±7 years. A total of 20 IIAA (4 cases were bilateral), with mean diameter of 37.9 mm, were treated. EVAR was performed in 13 (81.3%) patients, with associated internal iliac artery's outflow occlusion in 2. Iliac branch device was used in one patient. Two patients underwent endovascular IIAA embolization alone. One patient underwent percutaneous, transgluteal, IIAA embolization. IIAA flow preservation in at least one internal iliac artery was possible in 9 (56.3%) patients. Early mortality was 7% (1 case). Early morbidity was 18.8%. Pelvic ischemic complications occurred in 1 (7%) patient with buttock claudication. Late reintervention was needed in 3 patients, none of them for IIAA related complications. Conclusion: Endovascular treatment of IIAA is technically feasible and durable. Although overall morbidity is relatively high, major complications are infrequent and perioperative mortality is low. internal iliac artery flow preservation is technically challenging and, in a significant number of cases, not possible at all.

Is age a determinant factor in evar as a predictor of outcomes or in the selection procedure? our experience

Abstract Introduction: Endovascular aneurysm repair (EVAR) is the therapy of choice in high risk patients with abdominal aortic aneurysm. The good results described are leading to the broadening of clinical indications to younger patients. However, reintervention rates seem higher and even with successful treatment sometimes there is growth of the aneurysm sac and rupture, meaning a failure of the therapeutic goal. This study proposes to analyse the impact of age in patients' selection and post-EVAR results. Methods: The clinical records of consecutive patients undergoing endovascular aneurysm repair, between 2001 and 2013, were retrospectively reviewed. Patients were divided according to age groups (<70, 70-80 and >80 years). Gender, body mass index, aneurysm anatomic features, neck characteristics, iliac morphology, surgical indication, endograft type, anesthesic risk classification, length of stay, reinterventions and mortality were analysed and compared. Results: The study included 171 patients, 161 (94.1%) men, and mean age 74.1±8.9 years. The age group under 70 had 32% of the patients. Only three characteristics were found different among age groups: 1) body mass index was higher in younger patients, with a considerable trend toward significance (P=0.06); 2) surgical indication, in the younger group, surgeon's and the patient's option were more proeminent (P<0.05); 3) erectile dysfunction was higher in elderly group (P<0.05). No other clinical and anatomical characteristics or final outcomes were found statisticaly different among age groups. Conclusion: The absence of statistically differences in mortality and reinterventions among age groups suggests that age by itself is not a relevant factor in endovascular aneurysm repair. Indeed, the three characteristics different in younger (obesity, sexual function and patient's choice) favor endovascular aneurysm repair.

Aneurismas del sector aorto ilíaco: experiencia personal / Results of surgical treatment of aneurysms of the aorto iliac segment: review of 90 patients

Background: Abdominal aorta is the most common site for the formation of degenerative aneurysms. which remain asymptomatic until they rupture. Aim: To review the results of surgical treatment of aorto iliac segment aneurysms. Material and Methods: Retrospective review of medical records of 90 patients aged 48 to 88 years (60 males), operated for aneurysms of the aorto iliac segment, between 1998 and 2008. Patients were followed for a mean of 40 months. Results: Eighty six patients had infrarenal aneurysms with or without iliac extension and four had puré iliac aneurysms. Four patients had inflammatory aneurysms Eighty five were treated with open surgery. Of these, nine had ruptured or fissured aneurysms, two had lower limb ischemia, one had an extrinsic compression and one a complete thrombosis of the aneurysm. Five patients, without complications, were subjected to an endovascular repair. Overall 30 days mortality was 4.4 percent. The figures for ruptured and uncomplicated aneurysms were 11.1 and 2.7 percent respective ly. No patient subjected to endovascular repair died. One, two and three years survival rates were 90, 79 and 78 percent respectively. No patient died due to complications of the prosthetic graft. Three patients required an early re-intervention (an embolectomy in one and for a femoro-femoral bridge in two). Nine patients required a late re-intervention (an intestinal obstruction due to adherences in one and incisional hernias in eight). No patient subjected to endovascular repair required a re-intervention. Conclusions: Surgery for aorto iliac segment aneurysms is safe and avoids deaths caused by their complications.

Objetivo: Analizar la morbimortalidad precoz y alejada en la cirugía de los aneurismas del sector aorto-ilíaco. Material y Método: Revisión retrospectiva en una serie personal de pacientes operados en forma consecutiva por aneurismas del sector aorto-ilíaco desde 1998 a 2008 con seguimiento actualizado. Resultados: Se trata de 90 pacientes (60 varones), promedio de edad 72,7 años; 15,5 por ciento de 80 años o mayores; 86 casos de aneurismas de la aorta abdominal infrarrenal con o sin extensión ilíaca y 4 aneurismas ilíacos puros. Fueron sometidos a una cirugía abierta 85 pacientes y 5 tuvieron una reparación endovascular. De los 85 pacientes operados en forma abierta 13 presentaban alguna complicación: 9 rotos o Asurados, 2 con isquemia de una extremidad, una compresión extrínseca y una trombosis completa aguda del aneurisma. Hubo 4 casos de aneurisma inflamatorio. Los pacientes reparados en forma endovascular no estaban complicados. La mortalidad operatoria global a 30 días fue de 4,4 por ciento (4/90), en aneurismas rotos fue de 11,1 por ciento (1/9), en aneurismas no complicados fue un 2,7 por ciento (2/73), en casos de cirugía abierta un 4,7 por ciento (4/85) y no hubo mortalidad en la cirugía endovascular. El seguimiento medio fue de 39,63 meses (rango 1-131 meses). La supervivencia global fue de 89,7 por ciento, 79,2 por ciento y 77,8 por ciento al primer, tercer y quinto año. En el post-operatorio en relación a la cirugía clásica fueron intervenidos 12 pacientes (12/85: 14,1 por ciento), 3 precozmente (una embolectomía y dos puentes fémoro-femorales) y 9 en forma tardía (8 hernioplastías incisionales y una obstrucción intestinal por bridas). No hemos reintervenido los pacientes operados en forma endovascular. En el seguimiento alejado la mortalidad tuvo como causas principales las enfermedades cardíacas, respiratorias agudas y el cáncer avanzado, sin complicaciones o mortalidad atribuibles al injerto protésico...

Tratamento endovascular de aneurisma de ilíaca roto: relato de caso / Endovascular treatment of ruptured iliac aneurysm: case report

A taxa de mortalidade cirúrgica do aneurisma de ilíaca roto é similar à do aneurisma de aorta abdominal roto, devido à sua localização profunda na pelve, dificuldade de exposição distal da ilíaca decorrente do hematoma, bridas devido a laparotomia prévia e proximidade com ureter e estruturas venosas. O objetivo do presente estudo é enfatizar o procedimento endovascular como mais uma opção na correção dessas lesões. Relata-se o caso de um paciente de 60 anos de idade, submetido a derivação com enxerto aorto-biilíaco prévio com prótese há 5 anos, por aneurisma de aorta abdominal infra renal, apresentando rotura de aneurisma em segmento remanescente da ilíaca comum esquerda. Estava hemodinamicamente estável após ressuscitação com fluído e foi submetido ao tratamento endovascular de urgência, com a exclusão do aneurisma e ausência de vazamento.