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1.
Rev. chil. neurocir ; 41(2): 131-134, nov. 2015. ilus
Article in Spanish | LILACS | ID: biblio-869735

ABSTRACT

Las lesiones vasculares durante la cirugía de hernia discal son infrecuentes, pero asociadas con una alta mortalidad dependiendo del vaso afectado, requiriendo de una sospecha diagnóstica y manejo temprano que puedan evitar el desenlace mortal. Dependiendo del nivel intervertebral intervenido las lesiones vasculares comprometerán en mayor o menor frecuencia los diferentes grandes vasos, siendo más frecuentes los traumas a la aorta en niveles altos y el compromiso de los vasos arteriales y venosos ilíacos comunes o sus ramificaciones en niveles inferiores, las estadísticas en cuanto a incidencia se creen son subestimadas debido a la infrecuencia con que son reportados estos casos. El objetivo de este artículo es exponer el caso de una lesión traumática intraoperatoria de la arteria ilíaca común izquierda durante un procedimiento de hemilaminectomia y microdisectomia L5 - S1, en la que la temprana sospecha de la lesión y contar con equipo quirúrgico altamente capacitado en la institución permitió realizar un manejo oportuno sin secuelas neurológicas o vasculares para el paciente. Compartimos este caso dado lo infrecuente de sus reportes en la literatura revisada, si tenemos en cuenta la frecuencia con el que neurocirujano o cirujano de columna realiza procedimientos para corrección de hernias discales, sin dimensionar en muchas ocasiones el alto riesgo de morbi-mortalidad derivadas de una complicación quirúrgica, que en nuestro caso de no haber contado con el equipo quirúrgico idóneo (anestesia, cuidados posoperatorios, cirujanos generales y vasculares), no se hubiera obtenido el buen resultado para el paciente.


Vascular injury during surgery herniated disc are rare, but associated with high mortality depending on the affected vessel, requiring a diagnostic suspicion and early management to avoid a fatal deselance. Depending on the level involved surgical, vascular lesions are more commonly involved trauma of the aorta at high levels and commitment of arterial and venous vessels common iliac, less frequently commits its branches at lower levels. Due to the low incidence of reporting of these cases statistics are underestimated. The aim of this article is to present the case of a traumatic injury intraoperative left common iliac artery for a microdiscectomy procedure hemilaminectomy and L5 - S1, where a timely management was conducted through early suspicion of injury and the surgical team highly trained in the institution. There were no neurological or vascular consequences for the patient. We share this case due to the rareness of their reports in the literature reviewed, if we consider the frequency with which neurosurgeon or spine surgeon performs procedures to correct herniated discs, not to mention the high risk of surgical morbidity and mortality. In our case you have not had the ideal surgical equipment (anesthesia, postoperative care, general and vascular surgeons) had not obtained the good result for the patient.


Subject(s)
Humans , Male , Adult , Iliac Artery/injuries , Diskectomy , Intervertebral Disc Displacement , Lumbar Vertebrae , Iatrogenic Disease , Postoperative Complications
2.
J. vasc. bras ; 13(1): 58-62, Jan-Mar/2014. graf
Article in English | LILACS, SES-SP | ID: lil-709795

ABSTRACT

Embolization due to a firearm projectile entering the bloodstream is a rare event that is unlikely to be suspected during initial treatment of trauma patients. We describe and discuss a case of bullet embolism of the abdominal aortic bifurcation, complicated by a pseudoaneurysm of the thoracoabdominal aorta and occlusion of the right common iliac artery, but successfully treated using a combination of endovascular methods and conventional surgery.


A embolização por projétil de arma de fogo na circulação sanguínea é rara e de difícil suspeição no atendimento inicial ao trauma. Relatamos e discutimos um caso de embolia em bifurcação aórtica abdominal complicada com pesudoaneurisma de aorta tóraco-abdominal e oclusão de artéria ilíaca comum direita, tratada de forma efetiva pelos métodos endovascular e cirúrgico convencional.


Subject(s)
Humans , Male , Adolescent , Aorta, Abdominal/injuries , Iliac Artery/injuries , Embolism/complications , Wounds, Gunshot/surgery , Endovascular Procedures/rehabilitation , Aneurysm, False , X-Rays/adverse effects
3.
J. vasc. bras ; 13(1): 48-52, Jan-Mar/2014. graf
Article in English | LILACS | ID: lil-709797

ABSTRACT

Arteriovenous fistulae (AVFs) are anomalous communications between an artery and a vein, bypassing the capillary network. They can be subdivided on the basis of etiology into congenital and acquired fistulae. The latter may be caused by closed or penetrating traumas, or may be iatrogenic injuries. We report on a case of a young adult female gunshot wound victim treated with emergency laparotomy who developed asymmetrical edema of the lower limbs during the late postoperative period. Imaging exams showed the presence of a left internal iliac AVF, treated using endovascular surgery with placement of a covered stent, resulting in total occlusion of arteriovenous communication.


As fístulas arteriovenosas (FAVs) são comunicações anômalas entre uma artéria e uma veia, sem envolvimento capilar. Segundo sua etiologia, podem ser divididas em congênitas e adquiridas, resultantes de traumas fechados ou penetrantes, e de lesões iatrogênicas. Relatamos o caso de mulher jovem, vítima de ferimento por arma de fogo, submetida à laparotomia de urgência, que evoluiu no pós-operatório tardio com edema assimétrico de membros inferiores. Os exames de imagem demonstraram a presença de fístula arteriovenosa ilíaca interna esquerda, tratada através de cirurgia endovascular com stent revestido, determinando a total oclusão da comunicação arterial e venosa.


Subject(s)
Humans , Female , Adult , Iliac Artery/injuries , Wounds, Gunshot/therapy , Arteriovenous Fistula/diagnosis , Endovascular Procedures/methods , Drug-Eluting Stents/adverse effects , Angiography/adverse effects , Intensive Care Units , Time Factors , Tomography/methods
4.
Journal of Korean Medical Science ; : 167-169, 2013.
Article in English | WPRIM | ID: wpr-86384

ABSTRACT

Vascular injuries in lumbar disc surgery are serious complications which may be overlooked due to a broad range of clinical manifestations. It is important to be aware of the perioperative implications of this rare occurrence to lower mortality risk. A 20-yr-old man with a right L4-5 lumbar disc protrusion was operated on routinely under a surgical microscope. A bloody surgical field was noted temporarily during a discectomy along with a decreased blood pressure. After fluid resuscitation with an ephedrine injection, the bleeding soon stopped spontaneously and his vital signs were stabilized. Fifty hours after the operation, the patient showed signs of hypovolemic hypotension with abdominal distension. The right femoral artery pulsation was absent on palpation. An enhanced CT angiography revealed a retroperitoneal hematoma and obstruction of the left common iliac artery. An urgent laparotomy was done to repair the injured vessel by excision and interposition of a graft. The patient had an uneventful recovery.The subacute course of deterioration might have been due to intermittent blood leakage from the lacerated common iliac artery, which was sealed spontaneously. It is very important to pay close attention to post-surgical clinical manifestations to avoid a potentially fatal outcome in lumbar disc surgery.


Subject(s)
Humans , Male , Young Adult , Angiography , Diskectomy/adverse effects , Hematoma/etiology , Iliac Artery/injuries , Intervertebral Disc , Lacerations/etiology , Lumbar Vertebrae/surgery , Tomography, X-Ray Computed
5.
J. vasc. bras ; 11(3): 250-253, jul.-set. 2012. ilus
Article in Portuguese | LILACS | ID: lil-653568

ABSTRACT

A embolização de ramos da artéria ilíaca interna é uma técnica empregada no controle da hemorragia secundária à fratura pélvica. Apesar de largamente utilizada, são poucas as complicações relatadas relacionadas ao uso dessa técnica. Apresentamos um caso de estenose isquêmica de reto secundária à embolização da artéria sacral lateral para controle de hemorragia em uma paciente com fratura pélvica.


Transcatheter arterial embolization of the internal iliac artery branches is an accepted technique for the control of the hemorrhage due to pelvic fracture. Despite its widespread use, complications of the technique are rarely described. We reported a rectum ischemic stenosis following embolization of lateral sacral artery to control intractable hemorrhage from a pelvic fracture.


Subject(s)
Humans , Female , Aged , Iliac Artery/injuries , Pelvis/injuries , Rectum/pathology , Embolization, Therapeutic , Tomography, Emission-Computed
6.
The Korean Journal of Gastroenterology ; : 185-188, 2012.
Article in Korean | WPRIM | ID: wpr-28737

ABSTRACT

Paracentesis is a diagnostic, therapeutic procedure performed in patients with ascites. It is generally thought to be a safe procedure and transfusion of platelet concentrate or fresh frozen plasma is not recommended before the procedure, because the incidence of clinically significant bleeding is very low. We report a case of lateral abdominal wall hematoma due to the injury of the deep circumflex iliac artery after paracentesis in patient with alcoholic liver cirrhosis who was treated with transcatheter arterial embolization.


Subject(s)
Humans , Male , Middle Aged , Abdominal Wall/blood supply , Embolization, Therapeutic , Hematoma/etiology , Iliac Artery/injuries , Liver Cirrhosis, Alcoholic/diagnosis , Paracentesis/adverse effects
8.
Arq. bras. cardiol ; 95(3): 283-288, set. 2010. ilus, tab
Article in Portuguese | LILACS | ID: lil-560553

ABSTRACT

FUNDAMENTO: O uso da rosiglitazona tem sido o objeto de extensas discussões. OBJETIVO: Avaliar os efeitos da rosiglitazona nas artérias ilíacas, no local da injúria e na artéria contralateral, de coelhos hipercolesterolêmicos submetidos à lesão por cateter-balão. MÉTODOS: Coelhos brancos machos receberam uma dieta hipercolesterolêmica através de gavagem oral por 6 semanas e foram divididos em 2 grupos: grupo rosiglitazona (GR - 14 coelhos tratados com rosiglitazona por 6 semanas) e grupo controle (GC - 18 coelhos sem rosiglitazona). Os animais foram submetidos a lesão por cateter-balão na artéria ilíaca direita no 14º dia. RESULTADOS: Na artéria ilíaca contralateral, não houve diferença significante na razão entre as áreas intimal e medial (RIM) entre os grupos GR e GC. A rosiglitazona não reduziu a probabilidade de lesões tipo I, II ou III (72,73 por cento vs 92,31 por cento; p=0,30) e lesões tipo IV ou V (27,27 por cento vs 7,69 por cento; p=0,30). Na artéria ilíaca homolateral, a área intimal era significantemente menor no GR quando comparado ao GC (p = 0,024). A área luminal era maior no GR quando comparado ao GC (p < 0,0001). Houve uma redução significante de 65 por cento na IMR no GR quando comparado ao GC (p = 0,021). Nenhum dos critérios histológicos para lesões ateroscleróticas tipos I a V (American Heart Association) foram encontrados na artéria ilíaca homolateral. CONCLUSÃO: Esses achados demonstram que a administração de rosiglitazona por 6 semanas impede a aterogênese no local da lesão, mas não em um vaso distante do sítio da lesão.


BACKGROUND: Rosiglitazone has been the focus of extensive discussion. OBJECTIVE: To evaluate the effects of rosiglitazone on iliac arteries, both at the injury site and the contralateral artery, of hypercholesterolemic rabbits undergoing balloon catheter injury. METHODS: White male rabbits were fed a hypercholesterolemic diet by oral gavage for 6 weeks and divided into two groups as follows: rosiglitazone group (14 rabbits treated with rosiglitazone during 6 weeks) and the control group (18 rabbits without rosiglitazone). Animals underwent balloon catheter injury of the right iliac artery on the 14th day. RESULTS: In the contralateral iliac artery, there was no significant difference in the intima/media layer area ratio (IMR) between the control and rosiglitazone groups. Rosiglitazone did not reduce the probability of type I, II, or III lesions (72.73 percent vs 92.31 percent; p=0.30) and type IV or V lesions (27.27 percent vs 7.69 percent; p=0.30). As for the homolateral iliac artery, the intimal area was significantly lower in the rosiglitazone group, as compared to the control group (p = 0.024). The luminal layer area was higher in the rosiglitazone group vs. the control group (p < 0.0001). There was a significant reduction of 65 percent in the IMR in the rosiglitazone group vs the control group (p = 0.021). None of the histological criteria for type I-V atherosclerotic lesions (American Heart Association) were found in the homolateral iliac artery. CONCLUSION: These findings demonstrate that rosiglitazone given for 6 weeks prevents atherogenesis at the injury site, but not in a vessel distant from the injury site.


FUNDAMENTO: El uso de rosiglitazona ha estado siendo el objeto de extensas discusiones. OBJETIVO: Evaluar los efectos de la rosiglitazona en las arterias ilíacas, en el local de la injuria y en la arteria contralateral, de conejos hipercolesterolémicos sometidos a la lesión por catéter-balón. MÉTODOS: Conejos blancos machos recibieron una dieta hipercolesterolémica a través de gavage oral por 6 semanas y se los dividieron en 2 grupos: grupo rosiglitazona (GR - 14 conejos tratados con rosiglitazona por 6 semanas) y grupo control (GC - 18 conejos sin rosiglitazona). Los animales se sometieron a lesión por catéter-balón en la arteria ilíaca derecha en el 14º día. RESULTADOS: En la arteria ilíaca contralateral, no hubo diferencia significativa en la razón entre las áreas íntima y media (RIM) entre los grupos GR y GC. La rosiglitazona no redujo la probabilidad de lesiones tipo I, II ó III (72,73 por ciento vs 92,31 por ciento; p=0,30) y lesiones tipo IV ó V (27,27 por ciento vs 7,69 por ciento; p=0,30). En la arteria ilíaca homolateral, el área intima era significantemente menor en el GR cuando comparado al GC (p = 0,024). El área luminal era mayor en el GR cuando comparado al GC (p < 0,0001). Hubo una reducción significante del 65 por ciento en la IMR en el GR cuando comparado al GC (p = 0,021). Ningún de los criterios histológicos para lesiones ateroscleróticas tipos I a V (American Heart Association) se encontraron en la arteria ilíaca homolateral. CONCLUSIÓN: Estos hallazgos demuestran que la administración de rosiglitazona por 6 semanas impide la aterogénesis en el local de la lesión, pero no en un vaso distante del sitio de la lesión.


Subject(s)
Animals , Male , Rabbits , Atherosclerosis/prevention & control , Hypercholesterolemia/complications , Iliac Artery/drug effects , Neointima/etiology , Thiazolidinediones/pharmacology , Anti-Inflammatory Agents/pharmacology , Disease Models, Animal , Hypercholesterolemia/metabolism , Iliac Artery/injuries , Iliac Artery/metabolism , Iliac Artery/pathology , Neointima/metabolism , Random Allocation
9.
Clinics ; 65(1): 67-78, 2010. ilus, graf
Article in English | LILACS | ID: lil-538609

ABSTRACT

Objetive: This study evaluated retroperitoneal hematomas produced by bilateral injury of iliac arteries (uncontrolled hemorrhage), blood volume loss, transcapillary refill, the effects of volume replacement on retroperitoneal bleeding and the hemodynamic changes with and without treatment. Methods: Initial blood volume was determined with Tc99m-labelled red cells, and bleeding was evaluated by means of a portable scintillation camera positioned over the abdomen. Previously splenectomized mongrel dogs (16.8 ± 2.2 kg) were submitted to hemorrhage for 30 minutes and randomized into three groups: I - no treatment (n=7); II - treatment with 32 mL/kg of Lactated Ringer's for three to five minutes (n=7); and III - treatment with 4 mL/kg of 7.5 percent NaCl plus 6.0 percent dextran 70 for three to five minutes (n=7). They were studied for an additional 45 minutes. Results: Volume replacement produced transitory recovery in hemodynamic variables, including mean pulmonary artery pressure, pulmonary capillary wedge pressure and cardiac index, with significant increase in dogs treated with 32 mL/kg of Lactated Ringer's and 7.5 percent NaCl plus 6.0 percent dextran 70 (p<0.001, against no treatment), along with a decrease (p<0.001) in the systemic vascular resistance index. Groups II and III had significant initial decreases in hematocrit and hemoglobin. The treated dogs (groups II and III) presented rebleeding, which was greater during treatment with 32 mL/kg of Lactated Ringer's (group II). Conclusions: Despite the rebleeding observed in treated groups, the utilization of hypertonic saline solution with dextran proved to be effective in the initial reanimation, producing evident transcapillary refill, while the Lactated Ringer's solution produced capillary extravasation and was ineffective in the initial volume replacement in this model of uncontrolled hemorrhage.


Subject(s)
Animals , Dogs , Male , Blood Volume/drug effects , Dextrans/therapeutic use , Fluid Therapy/methods , Gastrointestinal Hemorrhage/drug therapy , Hematoma/drug therapy , Analysis of Variance , Capillaries/drug effects , Disease Models, Animal , Fluid Therapy/standards , Gastrointestinal Hemorrhage/physiopathology , Hematoma/physiopathology , Hemodynamics/drug effects , Iliac Artery/injuries , Isotonic Solutions/therapeutic use , Random Allocation , Retroperitoneal Space/blood supply , Saline Solution, Hypertonic/therapeutic use , Shock, Hemorrhagic/drug therapy
10.
Rev. med. (Säo Paulo) ; 86(2): 106-111, abr.-jun. 2007. ilus
Article in Portuguese | LILACS | ID: lil-498346

ABSTRACT

Ruptura traumática do anel pélvico resulta geralmente de impacto com grande dispêndio de energia levando à ruptura do complexo ósteo-ligamentar levando a hemorragia retroperitoneal oriunda do plexo venoso posterior da pelve e de superfícies ósseo-esponjosas,que juntamente com lesões associadas acarreta cerca de 15% a 25% de mortalidade nos pacientes com lesão do anel pélvico1. Em menos de 10% dos casos ocorre sangramento deartérias conhecidas, e em menos de 1% é relatado sangramento de vasos ilíacos ou femorais2,3,4. O objetivo do presente estudo é relatar o caso de um paciente vítima de trauma contuso comfratura pélvica e instabilidade hemodinâmica persistente após fixação pélvica externa, tendosediagnosticado por arteriografia lesão artérial ilíaca interna bilateral, e tratado por radiologia inervencionista com embolização.


Pelvic ring ruptures are a cause of great mortality and morbidity in trauma patients. The fatalities are, in general, consequence of the retroperitoneal hemorrhage and other associated damages due to the great force necessary to rip the pelvic ring. The mortality in theses cases are between 15 and 25%. The hemorrhage is usually due to the posterior pelvis venous plexus and the bony surface sponge bleedings. Less than 10% of the cases its caused by the bleeding of a known artery and in only 1%. by iliac or femoral arteries The objectives ofthis study is to report a case of a patient victim of a blunt trauma, with a complex pelvic fracture and hypotension by a bilateral iliac artery injury that was diagnosed and treated by interventionist radiology...


Subject(s)
Iliac Artery/injuries , Embolization, Therapeutic , Fractures, Closed , Pelvis/injuries , Radiology, Interventional
11.
Arq. bras. cardiol ; 87(4): 520-524, out. 2006. ilus, tab
Article in Portuguese, English | LILACS | ID: lil-438240

ABSTRACT

OBJETIVO: A neoproliferação intimal e o remodelamento têm sido implicados como os maiores fatores causadores de reestenose. O objetivo deste trabalho é estudar a ação da L-arginina por via oral, nesses dois fatores, após lesão por balão, em artérias ilíacas de coelhos hipercolesterolêmicos. MÉTODOS: Foram utilizados dezenove coelhos, que foram divididos em dois grupos: controle (GC) e arginina (GA), respectivamente com dezenove e dezessete artérias estudadas. Os animais foram submetidos a lesão por balão de angioplastia, em suas artérias ilíacas, quinze dias após início de dieta hipercolesterolêmica a 2 por cento. A seguir, os animais do GA passaram a receber uma solução de L-arginina, por via oral, na dose de 1 g/kg/dia. Após o sacrifício, no 15° dia após a lesão por balão, procedeu-se a cortes histológicos das artérias, as quais foram coradas e fixadas. Utilizou-se como representativa do desenvolvimento da lesão a razão da área da neoíntima (em mm²) pela camada média (em mm²). Por sua vez, a razão da área total do vaso em sua porção medial (de maior contato com o balão) pela área total do vaso no segmento referencial (de menor contato com o balão) foi a definidora do remodelamento. RESULTADOS: A média do espessamento neointimal (NI/M) foi de 0,8151±0,2201 no GC e de 0,3296±0,1133 no GA. Não houve diferença entre os tipos de remodelamento entre os dois grupos estudados. CONCLUSÃO: No modelo experimental utilizado, a L-arginina foi capaz de reduzir o espessamento intimal em coelhos hipercolesterolêmicos e não teve ação sobre o remodelamento arterial.


OBJECTIVE: It has been implied that neointimal proliferation and remodeling are the major causes of restenosis. The objective of this study is to assess the effect of orally administered L-arginine on these two factors in hypercholesterolemic rabbits that had suffered an injury to their iliac arteries caused by a catheter balloon. METHODS: The study included nineteen rabbits that were divided in two groups: control (CG) and arginine (AG). There were 19 arteries studied from the control group and 17 in the arginine group. The animals were placed on a 2 percent hypercholesterolemic diet for 15 days and then submitted to a balloon angioplasty in order to produce a lesion in their iliac arteries. Next, the AG animals were given a 1g/kg/day oral dose of a L-arginine solution. The animals were sacrificed 15 days after the angioplasty procedure and histological artery sections were prepared, stained and fixed. The ratio between the neointimal area (in mm²) and the media layer (in mm²) was used to represent lesion development. In order to determine remodeling, the ratio between the total area of the medial portion of the vessel (greater balloon contact) and the total area of the reference segment of the vessel (less balloon contact) was used. RESULTS: Mean neointimal thickness (NI/M) was 0.8151±0.2201 in CG and 0.3296±0.1133 in AG. Remodeling patterns for the two groups studied were similar. CONCLUSION: In the experimental model used, L-arginine was able to reduce intimal tissue thickness in hypercholesterolemic rabbits but did not act on artery remodeling.


Subject(s)
Animals , Male , Rabbits , Angioplasty, Balloon/adverse effects , Arginine/pharmacology , Hypercholesterolemia , Iliac Artery/injuries , Tunica Intima/drug effects , Disease Models, Animal , Endothelium, Vascular/drug effects , Iliac Artery/drug effects , Iliac Artery/pathology , Tunica Intima/pathology
12.
J. vasc. bras ; 5(3): 203-208, set. 2006. ilus, tab
Article in Portuguese | LILACS | ID: lil-447945

ABSTRACT

OBJETIVO: Discorrer sobre os aspectos clínicos e o tratamento cirúrgico de uma série de casos de aneurismas isolados das artérias ilíacas. MÉTODOS: Foram analisados retrospectivamente os dados protocolados e os prontuários de 12 pacientes com diagnóstico de aneurisma isolado das artérias ilíacas, operados no Departamento de Cirurgia da Santa Casa de São Paulo, no período de novembro de 1999 a fevereiro de 2003. RESULTADOS: A freqüência do aneurisma isolado das artérias ilíacas foi de 1,5 por cento dos aneurismas abdominais operados no período do estudo. A faixa etária variou entre 56 e 80 anos, 33 por cento dos doentes apresentavam aneurisma bilateral, e os diâmetros dos aneurismas variaram entre 2,0 e 8,5 cm. Em 83 por cento dos casos, os pacientes encontravam-se sintomáticos no momento do tratamento. Em nenhum dos casos o aneurisma se encontrava roto. A via de acesso utilizada nos aneurismas unilaterais foi a extraperitoneal homolateral à dilatação e, nos aneurismas bilaterais, a transperitoneal, longitudinal ou transversa. Não dissecamos o segmento posterior das artérias ilíacas para clampeamento, para evitar a ocorrência de lesão venosa intra-operatória. Não observamos mortalidade no período peroperatório. Em todos os casos, preservamos pelo menos uma artéria ilíaca interna. CONCLUSÃO: A via de acesso para os aneurismas isolados das artérias ilíacas deve ser individualizada. A preservação de pelo menos uma artéria ilíaca interna constitui uma regra a ser observada, bem como deve-se evitar a dissecção circunferencial das artérias ilíacas no intra-operatório.


OBJETIVE: To discuss clinical aspects and surgical treatment of a series of cases of isolated iliac artery aneurysms. METHODS: Protocol data and medical charts of 12 patients with diagnosis of isolated iliac artery aneurysm were retrospectively analyzed. The patients underwent surgery at the Department of Surgery of Santa Casa de São Paulo, from November 1999 to February 2003. RESULTS: Frequency of isolated iliac artery aneurysm was 1.5 percent of abdominal aneurysms who underwent surgery in the period under investigation. Age group ranged between 56-80 years, 33 percent of patients presented bilateral aneurysm, and aneurysm diameters ranged between 2.0-8.5 cm. In 83 percent of cases, the patients were symptomatic during treatment. Aneurysms were not ruptured in any case. Extraperitoneal approach ipsilateral to the dilatation was used in unilateral aneurysms, and transperitoneal approach, longitudinal or transverse, in bilateral aneurysms. We did not dissect the posterior segment of the iliac arteries for clamping, in order to avoid intraoperative venous lesion. There were no deaths during the surgery. In all cases, we preserved at least one internal iliac artery. CONCLUSION: Approach to isolated iliac artery aneurysms should be chosen on an individual basis. Preserving at least one internal iliac artery is a rule to be observed. Circumferential dissection of iliac arteries during the surgery should be avoided.


Subject(s)
Humans , Male , Female , Aged , Aneurysm/surgery , Aneurysm/classification , Aneurysm/complications , Iliac Artery/surgery , Iliac Artery/injuries , Middle Aged
13.
J. vasc. bras ; 5(3): 220-223, set. 2006. ilus
Article in Portuguese | LILACS | ID: lil-447948

ABSTRACT

A embolização das artérias ilíacas internas é usualmente realizada durante a correção endovascular dos aneurismas aorto-ilíacos, visando prevenir a ocorrência de endoleak. Entretanto, é freqüente a associação desse procedimento com inúmeras seqüelas pós-operatórias, em decorrência da diminuição do fluxo sangüíneo pélvico. Em virtude disso, torna-se necessário o desenvolvimento de dispositivos e estratégias para a preservação das artérias ilíacas internas durante a correção endovascular dos aneurismas aorto-ilíacos. Descrevemos aqui o emprego pioneiro de uma endoprótese ramificada Helical Sidebranch (Cook) para a artéria ilíaca interna, realizado com sucesso técnico imediato e controle pós-operatório satisfatório.


Embolization of internal iliac arteries is usually performed during endovascular repair of aortoiliac aneurysms, with the aim of preventing occurrence of endoleaks. However, the association of this procedure with several postoperative sequelae is frequent, due to reduced pelvic blood flow. For this reason, there is the need to develop devices and strategies to preserve internal iliac arteries during endovascular repair of aortoiliac aneurysms. In this study, we describe a pioneering use of a Helical Sidebranch (Cook) branched stent-graft to the internal iliac artery, which was performed with immediate technical success and satisfactory postoperative control.


Subject(s)
Male , Aged , Humans , Aortic Aneurysm/surgery , Aortic Aneurysm/complications , Aortic Aneurysm/diagnosis , Iliac Artery/abnormalities , Iliac Artery/surgery , Iliac Artery/injuries
14.
J. vasc. bras ; 5(2): 89-94, jun. 2006. ilus, tab
Article in Spanish | LILACS | ID: lil-446575

ABSTRACT

Objetivo: La cirurgía endovascular se ha estabelecido como uma opción eficaz en el tratamiento de la enfermedad oclusiva aterosclerótica de las arterias iliacas. Sin embargo, el uso de estos procedimientos para tratar otro tipo de lesiones aún no ha sido bien estudiado. Nuestro objetivo es analizar indicaciones y resultados del uso de endoprótesis en lesiones ilicas no oclusivas. Material y métodos: Revisamos retrospectivamente los registros de 14 pacientes consecutivos, todos hombres, 61,6 años de edad en promedio (rango: 25-80) tratados por vía endovascular entre 2001 y 2006 por lesiones iliacas no oclusivas. El estudio pre y posoperatorio incluyó tomografía computada. El procedimiento se efectuó en quirófano, utilizando un angiógrafo digital. Se usó acceso femoral insertando endoprótesis tubulares. Resultados: En 11 pacientes se asoció embolazación de arteria hipogástrica ipsilateral. Las patologías tratadas fueron: ocho aneurismas ateroscleróticos, 3 disecciones, 2 lesiones traumáticas y un pseudoaneurisma anastomótico...


Subject(s)
Male , Adult , Humans , Aneurysm/surgery , Aneurysm/complications , Aneurysm/diagnosis , Iliac Artery/injuries , Iliac Artery/pathology , Tomography/methods , Tomography
15.
J. vasc. bras ; 4(3): 307-310, set. 2005. ilus
Article in Portuguese | LILACS | ID: lil-448105

ABSTRACT

Os autores relatam um caso de paciente de 17 anos, vítima de acidente automobilístico com impacto frontal, que apresentava, ao socorro médico, dor abdominal intensa e tatuagem transversa, em região infra-umbilical, causada pelo cinto de segurança. Foi submetida a laparotomia exploradora, que evidenciou pequena lesão lacerante de jejuno terminal, não sendo encontradas outras lesões à inspeção. Ao término da cirurgia, verificou-se cianose moderada em região plantar esquerda, com ausência de pulsos tibiais e poplíteos. O pulso da artéria femoral encontrava-se diminuído. A arteriografia realizada mostrou obstrução do fluxo em artéria ilíaca comum esquerda. A reconstrução foi realizada com interposição de prótese de Dacron de 6 mm.


The authors report a case of a 17-year-old female patient involved in a head-on motor vehicle collision. The patient presented to the emergency department complaining of severe abdominal pain. She also had a transverse bruise in the inferior anterior abdominal wall, suggesting a seat-belt sign. The patient underwent an exploratory laparotomy, which showed a small distal jejunal perforation. Other lesions were not found at inspection. At the end of the operation, moderate cyanosis of the plantar aspect of the left foot was observed, and popliteal and distal pulses were absent. The intensity of the femoral pulse was decreased. An arteriography revealed obstruction of the left common iliac artery. Repair was successfully achieved with a 6-mm Dacron graft interposition.


Subject(s)
Humans , Female , Adolescent , Angioplasty/methods , Angioplasty , Wounds and Injuries/surgery , Wounds and Injuries/complications , Iliac Artery/surgery , Iliac Artery/injuries , Echocardiography, Doppler/methods , Echocardiography, Doppler
16.
Braz. j. med. biol. res ; 38(9): 1325-1329, Sept. 2005. ilus, tab, graf
Article in English | LILACS | ID: lil-408359

ABSTRACT

The complete spectrum of estrogen vascular effects remains unclear. In particular, estrogen effects in the vascular response to profound injury in males have not been explored in detail. Therefore, we submitted 44 male New Zealand rabbits weighing 3.4 ± 0.6 kg to overdistention balloon injury of the right iliac artery. Rabbits were given 17ß-estradiol (5.45 æmol/day, sc) or vehicle for 7 days before and 14 days after injury, when the arteries were examined by post-mortem histomorphometry. Arteriographic caliber was assessed in vivo at baseline and before sacrifice. On day 14 after injury, in vivo arteriographic caliber (baseline = 2.44 ± 0.43 mm) was decreased by 23.1 ± 0.1 percent in controls and by 44.5 ± 0.1 percent in estrogen-treated rabbits (P < 0.001). Neither the neointimal area nor the neointima/media area ratio changed after estrogen treatment. Collagen fraction was increased in the media and neointima of estrogen-treated rabbits vs control (1.38 ± 1.30 vs 0.35 ± 0.67, respectively, P = 0.01). Taken together, these findings suggest that estrogen increased negative vascular remodeling. Transcription of endothelial and inducible nitric oxide synthases (eNOS and iNOS) was analyzed by RT-PCR. eNOS mRNA expression was marginally increased after estrogen (P = 0.07) and injury. iNOS mRNA was increased 2- to 3-fold on day 14 after injury. With estrogen treatment, iNOS mRNA increased in uninjured arteries and exhibited a further 5.5-fold increase after injury. We concluded that estrogen increased lumen loss after balloon injury in male rabbits, likely by increased negative remodeling, which may be related to increased iNOS transcriptional rates.


Subject(s)
Animals , Male , Rabbits , Estradiol/pharmacology , Iliac Artery/injuries , Nitric Oxide Synthase Type II/metabolism , Nitric Oxide Synthase Type III/metabolism , Tunica Intima/drug effects , Angiography , Angioplasty, Balloon , Collagen/drug effects , Iliac Artery/drug effects , Iliac Artery/enzymology , Reverse Transcriptase Polymerase Chain Reaction , RNA, Messenger/analysis , Tunica Intima/enzymology
17.
São Paulo med. j ; 123(1): 38-41, Jan. 2005. tab
Article in English | LILACS | ID: lil-397358

ABSTRACT

CONTEXTO: Iatrogenias vasculares nas laparoscopias são um problema bem reconhecido e podem levar a importantes repercussões. Neste contexto, são apresentadas importantes informações sobre o tema e descrição de casos durante a direção de dois importantes serviços de cirurgia vascular, abrangendo uma experiência de 10 anos. CASOS: São descritos cinco casos de lesão vascular durante laparoscopia eletiva, dentre os quais sete lesões de vasos ilíacos. Todos foram diagnosticados imediatamente e necessitaram de laparotomia, hemostasia provisória e intervenção de urgência por um cirurgião vascular. Em três casos foi realizada sutura direta. Realizou-se um bypass aorto-ilíaco e um enxerto ilíaco-ilíaco com safena invertida. As lesões venosas foram suturadas. Um caso de lesão puntiforme em intestino delgado foi encontrado. Não houve mortalidade ou complicações no periodo pós-operatório. DISCUSSÃO: Importantes considerações e conselhos a respeito do tema são apresentados. Deve haver reconhecimento imediato da lesão vascular e combinado ao reparo vascular especializado é recomendado para reduzir significativamente o grau de complicações.


Subject(s)
Adult , Female , Humans , Gynecologic Surgical Procedures/adverse effects , Iliac Artery/injuries , Laparoscopy/adverse effects , Follow-Up Studies , Gynecologic Surgical Procedures/methods , Iliac Artery/surgery , Laparoscopy/methods , Laparotomy
18.
Article in English | IMSEAR | ID: sea-63672

ABSTRACT

BACKGROUND: The most important complications of laparoscopic cholecystectomy (LC) are biliary tract injuries. Non-biliary complications can be equally devastating, but have received less attention in literature. METHODS: The case files of 1748 patients who underwent LC over a period of seven years (1997-2003) in our department were retrospectively reviewed to identify non-biliary complications and their management. RESULTS: Nine patients (0.5%) sustained significant non-biliary injury while undergoing LC. The commonest was duodenal perforation during dissection of the Calot's triangle (3 cases). Other complications included diaphragmatic injury (2 cases), and small bowel injury while inserting the umbilical port, right external iliac artery injury during insertion of Veress needle, portal vein injury during dissection, and liver laceration while using a delivery system to extract the gall bladder (1 each). All these complications were detected and managed intra-operatively. During the same period, 10 patients sustained biliary injury. CONCLUSION: Intra-operative non-biliary injuries during LC occur as frequently as biliary injuries, and can be life-threatening and difficult to manage.


Subject(s)
Adult , Aged , Cholecystectomy, Laparoscopic/adverse effects , Cholecystitis/diagnosis , Female , Humans , Iliac Artery/injuries , Incidence , Intestinal Perforation/epidemiology , Male , Middle Aged , Pneumothorax/epidemiology , Portal Vein/injuries , Postoperative Complications/diagnosis , Prognosis , Retrospective Studies , Risk Assessment , Sampling Studies
19.
Rev. bras. anestesiol ; 53(4): 489-495, jul.-ago. 2003.
Article in Portuguese | LILACS | ID: lil-351785

ABSTRACT

JUSTIFICATIVA E OBJETIVOS: Lesäo da artéria ilíaca é uma ocorrência rara em laminectomias, porém, muito grave. O objetivo deste relato é apresentar um caso de lesäo da artéria ilíaca esquerda, em paciente submetido a laminectomia lombar sob raquianestesia, que se manifestou clinicamente no pós-operatório imediato, sete horas após o início da cirurgia. RELATO DO CASO: Paciente do sexo masculino, estado físico ASA I, 31 anos, 68 kg, foi submetido à laminectomia lombar em decúbito ventral sob raquianestesia em L2-L3, com bupivacaína hiperbárica a 0,5 por cento (20 mg) e fentanil 25 æg. A cirurgia transcorreu normalmente e sete horas após o seu início, já no pós-operatório, o paciente apresentou hipotensäo arterial, taquicardia, agitaçäo e dor abdominal difusa. A tomografia abdominal mostrou aspecto compatível com hematoma retroperitoneal e a laparotomia exploradora revelou lesäo da artéria ilíaca comum esquerda. Após a laparotomia, o paciente evoluiu bem. CONCLUSÕES: Na dependência do posicionamento e do estado físico, técnicas de anestesia geral se impöem. O caso chama atençäo para o fato de que qualquer técnica anestésica que tenha sido realizada, o sangramento no campo operatório pode näo ser real, na vigência de uma lesäo vascular, porque este sangramento pode ser tardio. No presente caso, a manifestaçäo clínica ocorreu sete horas após o início da cirurgia, quando o paciente já estava recuperado da anestesia. No entanto, o fenômeno (hipotensäo arterial) poderia ter ocorrido no per-operatório


Subject(s)
Humans , Male , Adult , Anesthetics, Intravenous/administration & dosage , Anesthetics, Local/administration & dosage , Anesthesia, Spinal , Iliac Artery/injuries , Bupivacaine/administration & dosage , Fentanyl , Intraoperative Complications , Laminectomy , Lumbar Vertebrae/surgery
20.
Ain-Shams Medical Journal. 2000; 51 (1-2, 3): 73-84
in English | IMEMR | ID: emr-53151

ABSTRACT

Twenty one patients with iatrogenic iliac artery injury complicating diagnostic [4] and interventional [17] angiographic procedures were managed from February 1994 to April 1999. Clinically they presented with acute lower limb ischemia [16], progressive retroperitoneal bleeding [4] and progressively growing false aneurysm [1]. Patients were managed by one or more of the following: 8 femorofemoral bypass, 8 iliac stent [with one failure], 3 balloon catheter thrombectomy [all failed], and 6 iliac exploration and proceed [with one mortality]. We conclude that for iliac occlusion, femorofemoral bypass is a safe and reliable option. With endovascular and imaging facilities, iliac stenting should be the first choice if possible. Blind thrombectomy is dangerous and should not be attempted. Temporary balloon tamponade is useful to stop bleeding in iliac artery rupture which should be managed without delay


Subject(s)
Humans , Iliac Artery/injuries , Iatrogenic Disease
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