Prevalence, growth rate and complications of splenic artery aneurysms in chronic liver disease patients.

Background: Chronic liver disease (CLD) patients are at greater risk for developing splenic artery aneurysm (SAA). Treatment for aneurysms > 2.5 cm in this population is considered. However, the procedure might be challenging in CLD patients, and complications may interfere in liver transplantation. We, therefore, sought to estimate the prevalence, growth rate and complications of SAA in patients with CLD. As secondary objective, we sought to evaluate whether those features differ in pre and post transplantation follow-up and among aneurysms with diameters greater or less than 2.5 cm at diagnosis. Patients and methods: We searched for the terms "SAA" and "CLD" on CT or MRI reports from January 2009 to December 2016. Patients with single examination or less than 6 months follow-up were excluded. Results: Fifty nine out of 2050 CLD patients presented SAA (prevalence of 2.9%). Fifteen patients were excluded (due to exclusion criteria). Forty-four CLD patients (mean age 55.9 years) presented 76 SAA (follow-up median of 27.2 months). Aneurysms presented mean size of 1.5 ± 0.74 cm at diagnosis and growth rate of 0.12 ± 0.14 cm/y. Two (4.5%) patients presented mild complications (aneurysm thrombosis). No significant differences were observed in the growth rates of aneurysms < 2.5 cm and ≥ 2.5 cm or in the initial size and growth rates of aneurysms of patients submitted to and not submitted to liver transplantation. Conclusions: The estimated prevalence of SAA in patients with DLC in the Brazilian population is 2.9% (CI95% 2.2-3.6%). Although SAA in CLD patients are less likely to remain stable and grow faster than in general population, aneurysms are usually diagnosed at smaller size and complications are rare. These findings might support conservative management with close surveillance, especially in smaller aneurysms.

Contemporary Treatment of Popliteal Artery Aneurysms in 14 Countries: A Vascunet Report.

OBJECTIVE: Popliteal artery aneurysm (PAA) is the second most common arterial aneurysm. Vascunet is an international collaboration of vascular registries. The aim was to study treatment and outcomes. METHODS: This was a retrospective analysis of prospectively registered population based data. Fourteen countries contributed data (Australia, Denmark, Finland, France, Hungary, Iceland, Italy, Malta, New Zealand, Norway, Portugal, Serbia, Sweden, and Switzerland). RESULTS: During 2012-2018, data from 10 764 PAA repairs were included. Mean values with between countries ranges in parenthesis are given. The incidence was 10.4 cases/million inhabitants/year (2.4-19.3). The mean age was 71.3 years (66.8-75.3). Most patients, 93.3%, were men and 40.0% were active smokers. The operations were elective in 73.2% (60.0%-85.7%). The mean pre-operative PAA diameter was 32.1 mm (27.3-38.3 mm). Open surgery dominated in both elective (79.5%) and acute (83.2%) cases. A medial surgical approach was used in 77.7%, and posterior in 22.3%. Vein grafts were used in 63.8%. Of the emergency procedures, 91% (n = 2 169, 20.2% of all) were for acute thrombosis and 9% for rupture (n = 236, 2.2% of all). Thrombosis patients had larger aneurysms, mean diameter 35.5 mm, and 46.3% were active smokers. Early amputation and death were higher after acute presentation than after elective surgery (5.0% vs. 0.7%; 1.9% vs. 0.5%). This pattern remained one year after surgery (8.5% vs. 1.0%; 6.1% vs. 1.4%). Elective open compared with endovascular surgery had similar one year amputation rates (1.2% vs. 0.2%; p = .095) but superior patency (84.0% vs. 78.4%; p = .005). Veins had higher patency and lower amputation rates, at one year compared with synthetic grafts (86.8% vs. 72.3%; 1.8% vs. 5.2%; both p < .001). The posterior open approach had a lower amputation rate (0.0% vs. 1.6%, p = .009) than the medial approach. CONCLUSION: Patients presenting with acute ischaemia had high risk of amputation. The frequent use of endovascular repair and prosthetic grafts should be reconsidered based on these results.

Aneurismas de artéria esplênica: história natural e técnicas de tratamento / Splenic aneurysms: natural history and treatment techniques

Resumo Aneurismas da artéria esplênica (AAE) verdadeiros são uma patologia rara, mas potencialmente fatal. São o terceiro aneurisma abdominal mais comum, após aneurismas da aorta e da artéria ilíaca, e representam quase todos os aneurismas de artérias viscerais. Os aneurismas verdadeiros são responsáveis ​​por 60% dos AAEs e afetam as mulheres quatro vezes mais do que os homens, geralmente relacionados a uma descoberta incidental ou sintomática aumentada que coincide com o uso da ultrassonografia na gravidez. Em pacientes grávidas, a mortalidade, após a ruptura, é de 65-75%, com mais de 90% de mortalidade fetal. Têm múltiplas etiologias, e acredita-se que as influências hormonais e as alterações do fluxo portal durante a gestação desempenhem um papel importante no desenvolvimento do AAE. Esta revisão discorrerá sobre sua história, epidemiologia, fisiopatologia, diagnóstico, e as técnicas atuais de tratamento.

Abstract True splenic artery aneurysms (SAA) are a rare, but potentially fatal, pathology. They are the third most common type of abdominal aneurysm, after aneurysms of the aorta and of the iliac artery, and account for almost the all aneurysms of visceral arteries. True aneurysms account for 60% of SAA and affect four times as many women as men, generally related to increased incidental or symptomatic findings that coincide with use of ultrasonography in pregnancy. Among pregnant patients, mortality after rupture is 65-75%, with fetal mortality exceeding 90%. There are multiple etiologies and it is believed that hormonal influences and changes in portal flow during gestation play an important role in development of SAA. This review discusses their history, epidemiology, pathophysiology, and diagnosis and current treatment techniques.

Electronic database of arterial aneurysms / Base eletrônica de dados dos aneurismas arteriais

Background: The creation of an electronic database facilitates the storage of information, as well as streamlines the exchange of data, making easier the exchange of knowledge for future research. Objective: To construct an electronic database containing comprehensive and up-to-date clinical and surgical data on the most common arterial aneurysms, to help advance scientific research. Methods: The most important specialist textbooks and articles found in journals and on internet databases were reviewed in order to define the basic structure of the protocol. Data were computerized using the SINPE© system for integrated electronic protocols and tested in a pilot study. Results: The data entered onto the system was first used to create a Master protocol, organized into a structure of top-level directories covering a large proportion of the content on vascular diseases as follows: patient history; physical examination; supplementary tests and examinations; diagnosis; treatment; and clinical course. By selecting items from the Master protocol, Specific protocols were then created for the 22 arterial sites most often involved by aneurysms. The program provides a method for collection of data on patients including clinical characteristics (patient history and physical examination), supplementary tests and examinations, treatments received and follow-up care after treatment. Any information of interest on these patients that is contained in the protocol can then be used to query the database and select data for studies. Conclusions: It proved possible to construct a database of clinical and surgical data on the arterial aneurysms of greatest interest and, by adapting the data to specific software, the database was integrated into the SINPE© system, thereby providing a standardized method for collection of data on these patients and tools for retrieving this information in an organized manner for use in scientific studies. .

Contexto: A criação de um banco de dados eletrônico facilita o armazenamento de informações e agiliza o cruzamento de dados, tornando mais fácil a troca de conhecimentos para futuras pesquisas. Objetivo: Criar uma base de dados clínicos e cirúrgicos informatizada, de uma forma abrangente e atualizada, dos aneurismas arteriais mais frequentes, para auxiliar na realização de estudos científicos. Métodos: Foram selecionados os principais livros-texto da especialidade e artigos retirados de revistas e de bases de dados ligados à rede internacional de computadores (Internet), para que servissem de base estrutural do protocolo. A informatização dos dados foi realizada através da interface do programa SINPE© (Sistema Integrado de Protocolos Eletrônicos) e testada por um projeto piloto. Resultados: Com a informatização dos dados, criou-se o protocolo mestre, o qual abrange grande parte do conteúdo das doenças vasculares, sendo organizado em pastas principais; em seguida, foram criados 22 protocolos específicos dos sítios arteriais aneurismáticos mais predominantes, originados das informações contidas no protocolo mestre. O programa permite a coleta de dados de pacientes com suas características clínicas (anamnese e exame físico), exames complementares, tratamento realizado e o seguimento pós-tratamento. Qualquer informação de interesse destes pacientes que conste no protocolo pode ser cruzada, de acordo com o estudo que se queira realizar. Conclusões: Foi possível a criação da base de dados clínicos e cirúrgicos, relacionada aos aneurismas arteriais de maior interesse, adaptando estes dados a software específico; este dispositivo foi incorporado no SINPE©, possibilitando um meio para coleta de dados de pacientes, assim como o resgate destas informações de forma organizada para uso em estudos científicos. .

Pattern of femoro-popliteal aneurysms in an African population

Objective: To describe the pattern of femoro-popliteal aneurysms in an African Kenyan population. Patients and methods: Records of African in-patients with diagnosis of femoral or popliteal aneurysms admitted at the Kenyatta National Hospital, Nairobi, Kenya, from January 1998 to December 2007 were examined for presentation, diagnosis, risk/comorbid factors, site, age, and gender distribution. Data were analyzed using SPSS 13.0 and presented using tables. Results: Femoro-popliteal aneurysms constitute 33 out of 96 of peripheral cases (34.4 percent). The most common presentations were pulsatile mass (48.5 percent) and pain and swelling (33.3 percent). Pain alone and bleeding occurred in 9.1 percent each. Diagnosis was performed through Doppler ultrasound (45.5 percent), angiography (30.3 percent) and ultrasonography (24.3 percent). Aneurysms were associated with trauma (51.5 percent), atherosclerosis (21.2 percent), smoking (9.1 percent) and hypertension (6.1 percent). Site distribution was common femoral (33.3 percent), superficial femoral (36.4 percent) and popliteal (30.3 percent). Mean age was 46 years (range 13-79 years); with 20 (60.6 percent) of them occurring in individuals aged 50 years and younger. Male:female ratio was 15:1. Conclusion: In the present study, femoro-popliteal aneurysms constituted less than 40 percent of peripheral aneurysms, and superficial femoral artery was the most common site. They occurred predominantly in males aged 50 years and younger and were associated mainly with trauma and atherosclerosis. Prevalence, site and age distribution of these aneurysms in the Kenyan population differs from that described in studies of Caucasian populations.

Objetivo: Descrever o padrão de aneurismas femoro-poplíteos em uma população africana do Quênia. Pacientes e Métodos: Prontuários de pacientes africanos internados com o diagnóstico de aneurisma femoro-poplíteo no Hospital Kenyatta, Nairóbi, Quênia, de janeiro de 1998 a dezembro de 2007 foram examinados quanto a apresentação, diagnóstico, fatores de risco/comorbidades, local, idade e gênero. Os dados foram analisados usando o Program SPSS 11.50 e apresentados em tabelas. Resultados: Aneurismas femoro-poplíteos constituem 33 dos 96 casos de aneurisma periférico (34,4 por cento). As apresentações mais comuns foram massa pulsátil (48,5 por cento) e dor e inchaço (33,3 por cento). Dor isolada e sangramento ocorreram em 9,1 por cento cada. O diagnóstico foi feito por ultrassonografia Doppler (45,5 por cento), angiografia (30,3 por cento) e ultrassonografia simples (24,5 por cento). Aneurismas foram associados a trauma (51,5 por cento), aterosclerose (21,2 por cento), tabagismo (9,1 por cento) e hipertensão arterial (6,1 por cento). A distribuição por locais foi femoral comum (33,3 por cento), femoral superficial (36,4 por cento) e poplítea (30,3 por cento). A média de idade foi de 46 anos (variando de 13 a 79 anos), com 20 casos (60,6 por cento) ocorrendo em indivíduos com 50 anos de idade ou menos. A relação masculino:feminino foi de 15:1. Conclusão: No presente estudo, aneurismas femoro-poplíteos constituíram menos de 40 por cento dos aneurismas periféricos, e a artéria femoral superficial foi o local mais comum. Eles ocorreram predominantemente em homens com idade igual ou menor que 50 anos e foram associados principalmente a trauma e aterosclerose. A prevalência, local e distribuição destes aneurismas diferem das descritas nas populações brancas.

Estudio del Sistema de la Arteria Cerebral Anterior en el hombre adulto / Study of the Anterior-cerebral -artery System in adult people

Las Arterias Cerebrales Mayores son los sustratos principales sobre los que actúan las enfermedades cerebrovasculares. Dentro de ellas es relevante la incidencia de aneurismas y otras malformaciones en el Sistema de la Arteria Cerebral Anterior, como causa de déficit irrigatorio, que produce graves alteraciones neurológicas al paciente. A esto se añade la gran variabilidad de esta arteria y sus ramos, que incluye variantes de origen, trayecto y ramificaciones; los cuales complican el diagnóstico y abordaje quirúrgico. Para describirla se realizó un estudio descriptivo en 50 cerebros humanos, procedentes de fallecidos, a los que se les realizó necropsia en el Departamento de Medicina Legal del Hospital Provincial de Ciego de Ávila. Se disecó cada hemisferio cerebral con su sistema arterial, de donde se obtuvo que la arteria Cerebral Anterior es un vaso constante por origen y trayecto. Se presentó con formas bifurcadas en más de la mitad de los casos, única de manera frecuente y trifurcada como variante extrema. La ramificación difusa se observó como patrón común y la magistral como variante. El calibre externo de la Cerebral Anterior fue mayor en el tronco principal. Como norma la arteria Cerebral Anterior presentó a la arteria Pericallosa Posterior como su rama terminal, manifestándose como variantes, las arterias Parietal y Paracentral. Se concluyó que el patrón común de este sistema arterial es la ramificación difusa con tronco bifurcado. Las variantes incluyen magistrales y formas de presentación únicas y trifurcadas (AU)

The major cerebral arteries are the main substrates, which are damaged by cerebral-vascular illnesses. Within them the incidence of aneurysms and other malformations are relevant in the Anterior-cerebral-artery system because of irrigating deficit that produces serious neurological alterations to patient, as well as the great variability this artery and its branches have, including origin variants, trajectory and ramifications, which complicate diagnosis and surgical boarding. To describe it a descriptive study of 50 human brains, coming from demised people who were made a necropsy, was carried out in the Legal Medicine Department from the Provincial Hospital of Ciego de Avila. Each and every cerebral hemisphere along with its artery system was stuffed to check that the cerebral-frontal-artery is a constant vessel by origin and way. It was presented with forked forms in more than half the cases, frequently unique and bifurcated as an extreme variety. Diffuse ramification was observed as a common pattern and masterly ramification as a variant. The external diameter of the Anterior Cerebral Artery was in the main trunk, presenting the Posterior Pericallosal Artery as norm and terminal branch, demonstrating as variants the Parietal and Paracentral arteries. It is concluded that the common pattern of this arterial system is the diffuse with bifurcated trunk. The variants include masterly ramifications as well as unique and trifurcated forms of presentation (AU)

Estudio del Sistema de la Arteria Cerebral Anterior en el hombre adulto / Study of the Anterior-cerebral -artery System in adult people

Las Arterias Cerebrales Mayores son los sustratos principales sobre los que actúan las enfermedades cerebrovasculares. Dentro de ellas es relevante la incidencia de aneurismas y otras malformaciones en el Sistema de la Arteria Cerebral Anterior, como causa de déficit irrigatorio, que produce graves alteraciones neurológicas al paciente. A esto se añade la gran variabilidad de esta arteria y sus ramos, que incluye variantes de origen, trayecto y ramificaciones; los cuales complican el diagnóstico y abordaje quirúrgico. Para describirla se realizó un estudio descriptivo en 50 cerebros humanos, procedentes de fallecidos, a los que se les realizó necropsia en el Departamento de Medicina Legal del Hospital Provincial de Ciego de Ávila. Se disecó cada hemisferio cerebral con su sistema arterial, de donde se obtuvo que la arteria Cerebral Anterior es un vaso constante por origen y trayecto. Se presentó con formas bifurcadas en más de la mitad de los casos, única de manera frecuente y trifurcada como variante extrema. La ramificación difusa se observó como patrón común y la magistral como variante. El calibre externo de la Cerebral Anterior fue mayor en el tronco principal. Como norma la arteria Cerebral Anterior presentó a la arteria Pericallosa Posterior como su rama terminal, manifestándose como variantes, las arterias Parietal y Paracentral. Se concluyó que el patrón común de este sistema arterial es la ramificación difusa con tronco bifurcado. Las variantes incluyen magistrales y formas de presentación únicas y trifurcadas.

The major cerebral arteries are the main substrates, which are damaged by cerebral-vascular illnesses. Within them the incidence of aneurysms and other malformations are relevant in the Anterior-cerebral-artery system because of irrigating deficit that produces serious neurological alterations to patient, as well as the great variability this artery and its branches have, including origin variants, trajectory and ramifications, which complicate diagnosis and surgical boarding. To describe it a descriptive study of 50 human brains, coming from demised people who were made a necropsy, was carried out in the Legal Medicine Department from the Provincial Hospital of Ciego de Avila. Each and every cerebral hemisphere along with its artery system was stuffed to check that the cerebral-frontal-artery is a constant vessel by origin and way. It was presented with forked forms in more than half the cases, frequently unique and bifurcated as an extreme variety. Diffuse ramification was observed as a common pattern and masterly ramification as a variant. The external diameter of the Anterior Cerebral Artery was in the main trunk, presenting the Posterior Pericallosal Artery as norm and terminal branch, demonstrating as variants the Parietal and Paracentral arteries. It is concluded that the common pattern of this arterial system is the diffuse with bifurcated trunk. The variants include masterly ramifications as well as unique and trifurcated forms of presentation.

[Popliteal artery aneurysms. Thirty-year experience at the ABC Medical Center]. / Aneurismas de la arteria poplítea. Treinta años de experiencia en el Centro Médico ABC.

BACKGROUND: Although popliteal artery aneurysms (PAA) are rare (0.1% of the general population), they are the most common of the peripheral aneurysms. They are associated with concomitant contralateral PAA and abdominal aortic aneurysm (AAA), with a high risk of complications and an elevated morbidity and mortality. METHODS: We performed a retrospective, transversal and retrolective study of a series of cases. We reviewed the clinical records of 11 patients with the diagnosis of PAA at the ABC Medical Center in Mexico City. RESULTS: All patients were males, and seven (63.63%) had bilateral PAA resulting in a total of 18 aneurysms; 54.54% had concomitant AAA with an association of 71.42% in the cases of bilateral PAA. Primary risk factors were smoking (90.90%) and hypertension 63.60%. Six (33.33%) aneurysms demonstrated acute thrombosis and critical leg ischemia. Eight (44.44%) aneurysms treated electively had a favorable outcome. The six (33.33%) thrombosed aneurysms showed morbidity, amputation and mortality rates of 66.66, 33.33 and 16.66%, respectively. For the other four (22.22%) aneurysms, treatment was deferred. Specific analysis of the thrombosed PAA demonstrated that the two main factors that predicted thrombosis were hypertension (p = 0.029) and bilaterality. CONCLUSIONS: In view of the high morbidity and mortality rates of thrombosed PAA, it is advisable to perform elective surgical treatment in any popliteal aneurysm >2 cm and with the presence of mural thrombus, torsion and, especially, if it is bilateral and the patient is hypertensive.

Aneurismas de la arteria poplítea: treinta años de experiencia en el Centro Médico ABC / Popliteal artery aneurysms: thirty-year experience at the ABC Medical Center

BACKGROUND: Although popliteal artery aneurysms (PAA) are rare (0.1% of the general population), they are the most common of the peripheral aneurysms. They are associated with concomitant contralateral PAA and abdominal aortic aneurysm (AAA), with a high risk of complications and an elevated morbidity and mortality. METHODS: We performed a retrospective, transversal and retrolective study of a series of cases. We reviewed the clinical records of 11 patients with the diagnosis of PAA at the ABC Medical Center in Mexico City. RESULTS: All patients were males, and seven (63.63%) had bilateral PAA resulting in a total of 18 aneurysms; 54.54% had concomitant AAA with an association of 71.42% in the cases of bilateral PAA. Primary risk factors were smoking (90.90%) and hypertension 63.60%. Six (33.33%) aneurysms demonstrated acute thrombosis and critical leg ischemia. Eight (44.44%) aneurysms treated electively had a favorable outcome. The six (33.33%) thrombosed aneurysms showed morbidity, amputation and mortality rates of 66.66, 33.33 and 16.66%, respectively. For the other four (22.22%) aneurysms, treatment was deferred. Specific analysis of the thrombosed PAA demonstrated that the two main factors that predicted thrombosis were hypertension (p = 0.029) and bilaterality. CONCLUSIONS: In view of the high morbidity and mortality rates of thrombosed PAA, it is advisable to perform elective surgical treatment in any popliteal aneurysm >2 cm and with the presence of mural thrombus, torsion and, especially, if it is bilateral and the patient is hypertensive.

Aneurisma de arteria femoral superficial: reporte de un caso y revisión de la patología / Superficial femoral artery aneurysm: report of a case and review of the pathology

El aneurisma arteriosclerótico aislado de la arteria femoral superficial es una patología inusual. Presentamos el caso de un paciente de 89 años que acude a nuestro hospital por una masa pulsátil de muslo derecho. Se demostró la presencia de un aneurisma a través del diagnóstico por imágenes y procedimos a su resección quirúrgica. Realizamos una revisión de la literatura de esta patología poco frecuente.

Macroaneurismas arteriais retrinianos adquiridos / Acquired arterial retinal macroaneurysms

Foram analisados retrospectivamente os prontuários de 23 pacientes portadores de 33 macroaneurismas arteriais retinianos adquiridos quanto à epidemiologia, associaçäo de patologias sistêmicas, acuidade visual pré e pós tratamento, número e localizaçäo dos aneurismas. Comparaçäo entre casos tratados e näo tratados e discussäo da bibliografia nacional e mundial existente é efetuada quanto à epidemiologia, indicaçöes de tratamento e prognóstico. Apesar da ocorrência de involuçäo espontânea de grande número de aneurismas, concluímos que quando há acometimento macular o tratamento com fotocoagulaçäo deve ser indicado.

Lesöes aneurismáticas do membro superior: etiologia e incidência / Anurysmatics lesions of the upper limb: etiology and incidence)

Lesöes aneurismáticas do membro superior säo lesöes pouco frequentes. De março de 82 a outubro de 94, de um total de 8169 arteriografias, foram identificadas e tratadas 8 lesöes aneurismáticas do membro superior. A incidência destas lesöes foi de 0,09 por cento. A etiologia foi: falsos aneurismas pós-traumáticos: 3 casos; aneurismas anastomoses de fístulas arterio-venosas (FAV) para hemodiálise: 4 casos; e aneurisma pós-estenótico por compressäo de uma costela cervical: 1 caso. As lesöes aneurismáticas do membro superior representaram somente 0,20 por cento dos procedimentos arteriais do período citado, 2,99 por cento das cirurgias dos anurismas. Os falsos aneurismas pós-traumáticos foram tratados por interposiçäo de enxerto venoso, os anastomóticos por ligadura da fístula e arterioplastia, e o único aneurisma pós-estenótico foi submetido a trombectomia tardia distal, ressecçäo da costela cervical e primeira costela, e interposiçäo de prótese de politetrafluoretileno (PTFE)

Complicaciones cerebrovasculares del embarazo / The cerebrovascular complications of pregnancy

A pesar de su baja frecuencia las complicaciones cerebrovasculares del embarazo constituyen una de las principales causas de mortalidad no asociadas a complicaciones obstétricas. Existen pocos reportes en relación al tema, sin embargo, se calcula que el riesgo de Enfermedad Vascular Cereberal (EVC) se incrementa hasta en 13 veces durante este periodo, dejando en la mayoría de las veces secuelas incapacitantes en un individuo jóven, y potencialmente productivo como lo es la embarazada. En este trabajo se revisan las complicaciones más frecuentes durante el embarazo en orden de frecuencia; isquemia cerebral y sus mecanismos durante este período, la trombosis venosa áseptica que puede presentarse durante el tercer trimestre del embarazo o con mayor frecuencia durante el puerperio y finalmente hemorragia cerebral

Aneurismas de la arteria hepática: diagnóstico por imágenes / Aneurysms of the hepatic artery: diagnostic for imagens

Los aneurismas de la arteria hepática son una patología rara, pero que pueden resultar mortales por ruptura espontánea. Desde el punto de vista clínico suelen ser asintomáticos hasta que se complican. El origen arteriosclerótico, infeccioso y traumático son las causas más frecuentes. Se comunican 3 casos de aneurismas de arteria hepática. Todos fueron estudiados con ecografía y arteriografía y, en dos casos, además con colangiografía transparietohepática y TC. Se describen las características de esta patología con los distintos métodos por imágenes, remarcándose su importancia para asegurar el diagnóstico aun con estudios no invasivos y para brindar al cirujano el detalle de la anatomía biliar y vascular, como así también las relaciones del aneurisma con las estrecturas vecinas. Se destaca la indicación de la arteriografía no solo para el diagnóstico sino también como tratamiento (embolización)

Aneurismas de la arteria hepática: diagnóstico por imágenes / Aneurysms of the hepatic artery: diagnostic for imagens

Los aneurismas de la arteria hepática son una patología rara, pero que pueden resultar mortales por ruptura espontánea. Desde el punto de vista clínico suelen ser asintomáticos hasta que se complican. El origen arteriosclerótico, infeccioso y traumático son las causas más frecuentes. Se comunican 3 casos de aneurismas de arteria hepática. Todos fueron estudiados con ecografía y arteriografía y, en dos casos, además con colangiografía transparietohepática y TC. Se describen las características de esta patología con los distintos métodos por imágenes, remarcándose su importancia para asegurar el diagnóstico aun con estudios no invasivos y para brindar al cirujano el detalle de la anatomía biliar y vascular, como así también las relaciones del aneurisma con las estrecturas vecinas. Se destaca la indicación de la arteriografía no solo para el diagnóstico sino también como tratamiento (embolización)

Peripheral aneurysms.

Between January 1970 and December 1990, 17 cases of peripheral aneurysms were observed in 15 patients. Fourteen patients were male and one patient was female. Age ranged between 4 years and 82 years. From the 17 peripheral aneurysms, 4 were false aneurysms, 9 were true atherosclerotic aneurysms, 2 were mycotic and 2 were true blunt traumatic aneurysms. The false aneurysms were caused by gun shot (one case, common carotid artery); complication of carotid endarterectomy (2 cases); iatrogenic (one case, common femoral artery). The atherosclerotic aneurysms (9 cases) were located in the subclavian artery (one case); superficial femoral artery (2 cases in a single patient); and popliteal artery (5 cases). The mycotic aneurysms (two in one patient) were located in the profunda femoris artery and in the anterior tibial artery. The two traumatic true aneurysms were located in the distal radial artery and in one interdigital artery, respectively. From the 17 peripheral aneurysms, 15 were submitted to surgical treatment, with fairly good results, except for one case of infection and another case of fatal renal insufficiency. Follow-up time ranged from 1 to 18 years.

Aneurismas arteriales periféricos verdaderos y falsos / Real and false peripheric arterial aneurysms

Presentamos una serie de 140 aneurismas periféricos verdaderos y falsos tratados quirúrgicamente. Los clasificamos en verdaderos y falsos; estos últimos subdivididos en traumáticos, anastomóticos e infecciosos. El tratamiento debe ser siempre quirúrgico por las graves complicaciones que ocurren cuando siguen su evolución natural. La incidencia de los aneurismas periféricos verdaderos fue del 5,1% en relación a la patología obliterante arteriosclerótica operada en el sector femoropoplíteo. Los peores resultados ocurrieron en los seudoaneurismas postoperatorios infectados. Los resultados globales fueron buenos en el 90% de los casos, quedaron con secuelas el 5%, debieron ser amputados el 3,5% y la mortalidad operatoria fue del l,4%.

Aneurismas arteriales periféricos verdaderos y falsos / Real and false peripheric arterial aneurysms

Presentamos una serie de 140 aneurismas periféricos verdaderos y falsos tratados quirúrgicamente. Los clasificamos en verdaderos y falsos; estos últimos subdivididos en traumáticos, anastomóticos e infecciosos. El tratamiento debe ser siempre quirúrgico por las graves complicaciones que ocurren cuando siguen su evolución natural. La incidencia de los aneurismas periféricos verdaderos fue del 5,1% en relación a la patología obliterante arteriosclerótica operada en el sector femoropoplíteo. Los peores resultados ocurrieron en los seudoaneurismas postoperatorios infectados. Los resultados globales fueron buenos en el 90% de los casos, quedaron con secuelas el 5%, debieron ser amputados el 3,5% y la mortalidad operatoria fue del l,4%. (AU)