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2.
Ann Vasc Surg ; 2020 May 29.
Artigo em Inglês | MEDLINE | ID: covidwho-437505

RESUMO

COVID-19 may predispose patients to an increased risk of thrombotic complications through various pathophysiological mechanisms. Most of the reports on a high incidence of thrombotic complications are in relation to deep vein thrombosis and pulmonary embolism, while the evidence about arterial thrombosis in patients with COVID-19 is limited. We describe 4 cases of aortic thrombosis and associated ischemic complications in patients with severe SARS-CoV-2 infection.

3.
Ann Vasc Surg ; 67: 10-13, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32474145

RESUMO

COVID-19 may predispose patients to an increased risk of thrombotic complications through various pathophysiological mechanisms. Most of the reports on a high incidence of thrombotic complications are in relation to deep vein thrombosis and pulmonary embolism, while the evidence about arterial thrombosis in patients with COVID-19 is limited. We describe 4 cases of aortic thrombosis and associated ischemic complications in patients with severe SARS-CoV-2 infection.


Assuntos
Anticoagulantes/uso terapêutico , Doenças da Aorta/etiologia , Betacoronavirus , Infecções por Coronavirus/complicações , Pneumonia Viral/complicações , Terapia Trombolítica/métodos , Trombose/etiologia , Idoso , Doenças da Aorta/diagnóstico , Doenças da Aorta/tratamento farmacológico , Infecções por Coronavirus/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/epidemiologia , Trombose/diagnóstico , Trombose/tratamento farmacológico , Tomografia Computadorizada por Raios X
6.
Angiol. (Barcelona) ; 71(4): 167-169, jul.-ago. 2019. ilus
Artigo em Espanhol | IBECS | ID: ibc-190301

RESUMO

Las variaciones anatómicas en la vascularización arterial renal son altamente prevalentes y su conocimiento es de especial interés clínico. Nuestro objetivo es describir una variante anatómica de las arterias renales poco conocida en la literatura actual


The anatomical variations in renal arterial vascularization are highly prevalent and their knowledge is of special clinical interest. Our aim is to describe an anatomical variant of the renal arteries little known in current literatura


Assuntos
Humanos , Feminino , Idoso , Embolia/diagnóstico por imagem , Embolia/cirurgia , Artéria Renal/anormalidades , Artéria Renal/diagnóstico por imagem , Nefropatias/diagnóstico por imagem , Nefropatias/cirurgia
9.
Ann Vasc Surg ; 41: 271-278, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27913124

RESUMO

BACKGROUND: Oxidative stress is increased in atherosclerosis, manifested both in blood and tissue (atherosclerotic plaque). We aim at describing the expression of a number of genes related to oxidative stress response in carotid atherosclerotic plaques and their relation to symptomatic state. METHODS: We have studied the messenger RNA expression levels for genes related to oxidative stress in a population of 44 patients undergoing carotid endarterectomy, according to the presence (24 patients) or absence (20 patients) of symptoms. Samples were homogenized, RNA was extracted, and gene expression was measured by quantitative reverse transcription polymerase chain reaction arrays. RESULTS: Data showed a decrease in expression of oxidative stress protective genes in symptomatic patients and increased expression of pro-oxidant genes. Asymptomatic patients maintain higher levels of expression of protective genes in the tissue. CONCLUSIONS: This study establishes a close relationship between symptoms and levels of expression of genes that protect against oxidative stress. We propose the existence of a mechanism that silences these genes, causing a more severe atherosclerotic disease state.


Assuntos
Antioxidantes/metabolismo , Artérias Carótidas/metabolismo , Estenose das Carótidas/genética , Estenose das Carótidas/metabolismo , Estresse Oxidativo , Placa Aterosclerótica , RNA Mensageiro/genética , Artérias Carótidas/patologia , Artérias Carótidas/cirurgia , Estenose das Carótidas/complicações , Estenose das Carótidas/cirurgia , Regulação para Baixo , Endarterectomia das Carótidas , Humanos , RNA Mensageiro/metabolismo
10.
Med. clín (Ed. impr.) ; 146(6): 254-257, mar. 2016. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-150137

RESUMO

Fundamento y objetivo El tratamiento anticoagulante oral durante más de 6 meses en pacientes con un episodio de enfermedad tromboembólica idiopática es controvertido. El objetivo fue determinar los signos clínicos predictores que permiten identificar a los pacientes con mayor riesgo de recurrencia tromboembólica después de suspender el tratamiento anticoagulante de 6 meses, tras un episodio de trombosis venosa profunda (TVP) idiopática. Pacientes y métodos Es un estudio prospectivo en el que se incluyeron 306 pacientes consecutivos diagnosticados de un primer episodio de TVP idiopática desde junio de 2012 a junio de 2014. Se recogieron los datos de variables predictoras de enfermedad tromboembólica recurrente y los episodios de recurrencia durante el seguimiento de los pacientes (28,42 meses). Realizamos un análisis multivariable para analizar las posibles variables predictoras (p < 0,20) y un análisis de supervivencia de Kaplan-Meier para establecer el tiempo medio libre de recidiva. Resultados: Identificamos 91 episodios de enfermedad tromboembólica recurrente durante el seguimiento de los pacientes (37,5% varones y 20,3% mujeres) (OR 1,84; IC al 95% 1,25-2,71). En el análisis de regresión de Cox estratificado por sexo se mostraron significativas las variables presencia de trombo hiperecogénico (p = 0,001) en varones y persistencia de trombo residual en mujeres (p = 0,046). El tiempo medio libre de recidiva fue más corto en ambos grupos. Conclusiones: La presencia de trombo hiperecogénico en los varones y la existencia de TVP residual en las mujeres fueron 2 signos clínicos predictores asociados a un mayor riesgo de recurrencia tromboembólica después de suspender el tratamiento anticoagulante de 6 meses, tras un episodio de TVP idiopática en nuestro estudio (AU)


Background and objective: Oral anticoagulant therapy for more than 6 months in patients with an episode of idiopathic thromboembolic disease is controversial. The objective was to determine predictive clinical signs that identify patients at increased risk of thromboembolic recurrence after stopping anticoagulant therapy for 6 months after an episode of idiopathic deep vein thrombosis (DVT). Patients and methods: A prospective study which included 306 consecutive patients with a first episode of idiopathic DVT from June 2012 to June 2014. Predictor variables of recurrent thromboembolic disease and episodes of recurrence during follow-up of the patients (28.42 months) were collected. We performed a multivariate analysis to analyze possible predictors (P < .20) and an analysis of Kaplan-Meier to establish mean recurrence-free survival. Results: We identified 91 episodes of residual vein thrombosis on follow-up of the patients (37.5% men and 20.3% women) (OR 1.84; 95% CI 1.25-2.71). In the Cox regression analysis stratified by gender, variables showed significant presence of hyperechoic thrombus (P = .001) in males, and persistence of residual thrombus in women (P = .046). The mean recurrence-free survival was shorter in both groups. Conclusions: The presence of echogenic thrombus in men and the existence of residual DVT in women were 2 clinical signs associated with increased risk of thromboembolic recurrence after stopping anticoagulant therapy for 6 months after an episode of idiopathic DVT in our study (AU)


Assuntos
Humanos , Masculino , Feminino , Trombose Venosa/complicações , Trombose Venosa/diagnóstico , Trombose Venosa/prevenção & controle , Trombose Venosa/terapia , Tromboembolia/terapia , Tromboembolia Venosa/diagnóstico , Tromboembolia Venosa/terapia
11.
Med Clin (Barc) ; 146(6): 254-7, 2016 Mar 18.
Artigo em Espanhol | MEDLINE | ID: mdl-26803448

RESUMO

BACKGROUND AND OBJECTIVE: Oral anticoagulant therapy for more than 6 months in patients with an episode of idiopathic thromboembolic disease is controversial. The objective was to determine predictive clinical signs that identify patients at increased risk of thromboembolic recurrence after stopping anticoagulant therapy for 6 months after an episode of idiopathic deep vein thrombosis (DVT). PATIENTS AND METHODS: A prospective study which included 306 consecutive patients with a first episode of idiopathic DVT from June 2012 to June 2014. Predictor variables of recurrent thromboembolic disease and episodes of recurrence during follow-up of the patients (28.42 months) were collected. We performed a multivariate analysis to analyze possible predictors (P<.20) and an analysis of Kaplan-Meier to establish mean recurrence-free survival. RESULTS: We identified 91 episodes of residual vein thrombosis on follow-up of the patients (37.5% men and 20.3% women) (OR 1.84; 95% CI 1.25-2.71). In the Cox regression analysis stratified by gender, variables showed significant presence of hyperechoic thrombus (P=.001) in males, and persistence of residual thrombus in women (P=.046). The mean recurrence-free survival was shorter in both groups. CONCLUSIONS: The presence of echogenic thrombus in men and the existence of residual DVT in women were 2 clinical signs associated with increased risk of thromboembolic recurrence after stopping anticoagulant therapy for 6 months after an episode of idiopathic DVT in our study.


Assuntos
Embolia Pulmonar/etiologia , Trombofilia/complicações , Trombose Venosa/etiologia , Anticoagulantes/uso terapêutico , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Modelos de Riscos Proporcionais , Estudos Prospectivos , Embolia Pulmonar/diagnóstico por imagem , Embolia Pulmonar/epidemiologia , Recidiva , Fatores de Risco , Trombofilia/tratamento farmacológico , Trombofilia/epidemiologia , Trombofilia/genética , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/epidemiologia , Trombose Venosa/prevenção & controle
12.
Rev Port Cir Cardiotorac Vasc ; 20(2): 97-101, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24730019

RESUMO

Visceral aneurysms are rare clinical entities, being the most common in this group of pathology the aneurysms of the splenic artery. Its prevalence is estimated between 0.2 and 9.7%, according to different authors, however the introduction of imaging techniques to assess abdominal pathology have increased the incidental findings of these cases. Once diagnosed, treatment should be considered, when they are larger than 2 cm. in size. Conventional surgery in most cases, together with splenectomy and aneurysm resection is often required. Endovascular procedures emerge as a less aggressive and effective treatment option. Our institutional experience is presented in the treatment of 13 cases of splenic aneurysms, analyzing the profile of the patients, treatments performed and results obtained. This type of therapy and the current literature are also analysed.


Assuntos
Aneurisma/cirurgia , Procedimentos Endovasculares , Artéria Esplênica/cirurgia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
14.
Arch. esp. urol. (Ed. impr.) ; 64(7): 629-631, sept. 2011. ilus
Artigo em Espanhol | IBECS | ID: ibc-94335

RESUMO

OBJETIVO: Revisar la presentación, diagnóstico y tratamiento de una entidad poco frecuente como los aneurismas de la arteria renal.MÉTODOS: Presentamos el caso de un paciente monorreno con un aneurisma renal calcificado sintomático.RESULTADOS: Los aneurismas de la arteria renal pueden provocar hipertensión, hematuria, dolor en flanco, o ser totalmente asintomáticos. Las causas más frecuentes son laarteriosclerosis y la displasia fibromuscular y el diagnóstico se basa en la tomografía computerizada y en la angiografía. El tratamiento puede ser quirúrgico, endovascular o expectante.CONCLUSIONES: Los aneurismas de la arteria renal son una patología sobre la que, por su baja prevalencia, no existen pautas claras de actuación. El número de casos diagnosticados ha aumentado en las últimas décadas y el tratamiento endovascular se muestra como una buena opción(AU)


OBJECTIVE: To review presentation, diagnosis and treatment of renal artery aneurysms, a very uncommon disease.METHODS: We report the case of a male with a calcified renal artery aneurysm in a solitary kidney.RESULTS: Symptomatic effects may be hypertension, hematuria or flank pain. Arteriosclerosis and medial dysplasia are the most frequent causes and diagnosis is based on CT scan and angiography.CONCLUSIONS: The renal artery aneurysm is a disease with low prevalence and there is no clear protocol for management. The number of cases has increased over the last decades and endovasculrar treatment is a good therapeutic option(AU)


Assuntos
Humanos , Masculino , Aneurisma/complicações , Aneurisma/diagnóstico , Hipertensão/complicações , Hematúria/complicações , Dor no Flanco/complicações , Dor no Flanco/etiologia , Displasia Fibromuscular/complicações , Displasia Fibromuscular/diagnóstico , Procedimentos Endovasculares/métodos , Procedimentos Endovasculares/tendências , Artéria Renal/patologia , Dor no Flanco/diagnóstico , Arteriosclerose/complicações , Arteriosclerose/diagnóstico
15.
Rev. argent. cir. cardiovasc. (Impresa) ; 9(2): 88-98, mayo-ago. 2011. tab
Artigo em Espanhol | LILACS | ID: lil-696156

RESUMO

La angioplastía es un procedimiento que se ha introducido en el tratamiento de las lesiones oclusivas de los miembros inferiores con resultados prometedores. No obstante, son importantes los nuevos aportes de datos sobre los resultados obtenidos, teniendo en cuenta la falta de homogeneidad de los pacientes tratados afectados por diferentes procesos obstructivos arteriales, tratados en diferentes situaciones clínicas y con una muy variada extensión de las lesiones. Se realiza un análisis de 239 casos incluidos en un estudio prospectivo con el objetivo de analizar los resultados en relación a los diversos factores que afectan a los pacientes. Se analizan los resultados y se valoran los mismos.


A angioplastia é um procedimento que foi introduzido no tratamento das lesões oclusivas dos membros inferiores com resultados prometedores. Entretanto, são importantes as novas contribuições de dados sobre os resultados obtidos, levando em consideração a falta de homogeneidade dos pacientes tratados afetados por diferentes processos obstrutivos arteriais, tratados em diferentes situações clínicas e com uma muito variada extensão das lesões. Realiza-se uma análise de 239 casos incluídos em um estudo prospectivo com o objetivo de analisar os resultados com relação aos diversos fatores que afetam os pacientes. Analisam-se os resultados e se valorizam os mesmos.


Angioplasty is a procedure that has been introduced with promising results in the treatment of occlusive lesions of the lower limbs. However, it is necessary further input of data on the results obtained taking into account the lack of homogeneity of patients suffering from obstructive arterial different processes, treated in different clinical situations and with a very wide extent of the injury. An analysis of 239 cases in a prospective study to analyze the results in relation to the various factors that affect patients. The results are analyzed and valued the same.


Assuntos
Humanos , Masculino , Feminino , Doenças Vasculares Periféricas/cirurgia , Extremidades/irrigação sanguínea , Isquemia/terapia , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Procedimentos Cirúrgicos Vasculares/instrumentação , Stents , Doenças Vasculares Periféricas/complicações , Isquemia/etiologia , Salvamento de Membro
16.
Rev Port Cir Cardiotorac Vasc ; 18(2): 99-104, 2011.
Artigo em Português | MEDLINE | ID: mdl-23560269

RESUMO

PURPOSE: The clinical utility of monitoring by Doppler ultrasound patients undergoing carotid endarterectomy is not clearly established. Our goal is to evaluate by echo-Doppler the progress of contralateral stenosis in a real environment, in order to assess its usefulness. MATERIAL AND METHODS: Retrospective study with Doppler ultrasound monitoring in patients undergoing carotid endarterectomy for a period of 3 years. We included cases with Doppler echography before and at least one post-surgery. We excluded patients with contralateral thrombosis, contralateral stenosis, established surgical indication or prior carotid surgery. Analysis was performed using Kaplan-Meier curves to estimate the rate of patients free of progression and / or surgery, as well as an analysis of risk factors for progression of contralateral stenosis. RESULTS: We included 119 patients (41.2% symptomatic) age 68.3 +/- 8.41 years. The follow-up was 40.5 +/- 23.2 months, with a mean of 2.64 +/- 1.58 scans per patient. The likelihood of progression of contralateral carotid stenosis was estimated at 91, 86, 81 and 79% at one, two, three and four years respectively. The only significant risk factor for progression was the presence of moderate or greater contralateral stenosis (30% or more) at the time of surgery. CONCLUSIONS: The evolution of the contralateral carotid atherosclerosis is relatively common. The degree of stenosis correlates with early progression, the study by echo-Doppler plays an important role in monitoring these patients.


Assuntos
Doenças das Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/cirurgia , Endarterectomia das Carótidas , Ultrassonografia Doppler , Ultrassonografia de Intervenção , Idoso , Progressão da Doença , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco
17.
Ann Vasc Surg ; 24(6): 747-51, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20472389

RESUMO

BACKGROUND: Patients undergoing open aortoiliac surgery constitute a high-risk subgroup. The aim of this study was to evaluate the relationship between postoperative troponin T (TnT) elevation with the associated postoperative mortality, and mean hospital stay. METHODS: This was a prospective observational study of consecutive patients who underwent open aortoiliac surgery during 2006. TnT levels in the first 72 hours after the operation, immediate mortality, postoperative care unit stay, and total postoperative hospital stay were recorded. Statistical analyses were performed with the program SPSS 14.0; the chi-square test (or the Fisher's exact test) was used for qualitative variables and the Mann-Whitney test for quantitative variables. RESULTS: Of the 65 patients included in the study, postoperative TnT was elevated in 14 (21.5%) patients. No significant differences were found in age, sex, hypertension, dyslipidemia, smoking, diabetes mellitus, ischemic heart disease, heart failure, bronchopathy, or renal failure between groups. Mortality in patients with elevated TnT levels was significantly higher (42% compared with 3.92%; relative risk 10.93 +/- 0.76; p = 0.001). Likewise, their mean postoperative intensive care unit stay was significantly greater (23.21 +/- 6.96 days compared to 2.86 +/- 1.96; p < 0.001). This finding resulted in a significantly longer postoperative hospital stay (32.57 +/- 25.38 days compared with 12.47 +/- 2.21). CONCLUSION: TnT level in the immediate postoperative period is a highly relevant indicator of prognosis in patients undergoing major vascular surgery.


Assuntos
Doenças da Aorta/cirurgia , Artéria Ilíaca/cirurgia , Doenças Vasculares Periféricas/cirurgia , Troponina T/sangue , Procedimentos Cirúrgicos Vasculares/mortalidade , Idoso , Idoso de 80 Anos ou mais , Doenças da Aorta/mortalidade , Biomarcadores/sangue , Distribuição de Qui-Quadrado , Feminino , Mortalidade Hospitalar , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/mortalidade , Valor Preditivo dos Testes , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Espanha , Fatores de Tempo , Resultado do Tratamento , Regulação para Cima , Procedimentos Cirúrgicos Vasculares/efeitos adversos
18.
Ann Vasc Surg ; 24(5): 696-8, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20363106

RESUMO

We describe the endovascular treatment given to a patient who, after surgery on the ascending thoracic aorta due to acute type A dissection (Bentall's procedure), developed a pseudoaneurysm 12 cm in diameter of the ascending aorta at the brachiocephalic trunk. Firstly, an extra-anatomical carotid-carotid bypass was performed, which was followed by endovascular treatment, excluding the aortic arch from the origin of both coronary arteries to the origin of the left common carotid artery, occluding the brachiocephalic trunk. For accurate placement of the endoprosthesis, the device was released after cardiac arrest with adenosine.


Assuntos
Aneurisma Dissecante/cirurgia , Falso Aneurisma/cirurgia , Aneurisma da Aorta Torácica/cirurgia , Implante de Prótese Vascular/efeitos adversos , Adenosina/administração & dosagem , Falso Aneurisma/diagnóstico , Falso Aneurisma/etiologia , Aortografia/métodos , Prótese Vascular , Implante de Prótese Vascular/instrumentação , Parada Cardíaca Induzida , Humanos , Angiografia por Ressonância Magnética , Pessoa de Meia-Idade , Desenho de Prótese , Reoperação , Tomografia Computadorizada por Raios X , Resultado do Tratamento
19.
Interact Cardiovasc Thorac Surg ; 8(3): 353-7, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19068496

RESUMO

OBJECTIVES: To analyze the postoperative complications of patients who have undergone surgical repair of femoral pseudoaneurysm after cardiac catheterization. DESIGN: Prospective study. MATERIALS: Cardiovascular risk factors, related to surgery and cardiac catheterization were collected prospectively in 79 patients from 2003 to 2006 in Valladolid University Hospital. The indications of surgery included necrosis of adjacent soft tissue, rapid growth, infection, bleeding, hemodynamic instability or failure of the percutaneous treatment (US-guided compression and US-guided percutaneous thrombin injection). METHODS: Patient and management related predictors for 30-day outcome were analyzed. RESULTS: Fifty-six patients (56/79, 71%) experienced some type of postoperative complication, the most frequent being the need for a transfusion. Infection (15/79, 19%) and dehiscence of the surgical wound (10/79, 12.7%) were the other two most common complications. The mortality related to the intervention was 3.8% (3/79). The mean hospital stay was 32.5 days (+/-28.4 days). Significant risk factors in logistic regression model were gender (P=0.023, OR=9.66), 70 years old (P=0.049, OR=0.15) and the concurrent use of anticoagulation or antiplatelet therapy after the cardiac catheterization (P=0.005, OR=0.03). CONCLUSION: Patients who undergo surgical treatment of femoral pseudoaneurysm post-cardiac catheterization experience a high postoperative morbidity and hospital stay. Factors such as female gender, age over 70 years and treatment with anticoagulants or antiplatelets increase the postoperative morbidity. A seasonal influence was appreciated, with a higher frequency during the summer period.


Assuntos
Falso Aneurisma/cirurgia , Cateterismo Cardíaco/efeitos adversos , Artéria Femoral/cirurgia , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Falso Aneurisma/etiologia , Anticoagulantes/efeitos adversos , Transfusão de Sangue , Feminino , Humanos , Tempo de Internação , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Inibidores da Agregação de Plaquetas/efeitos adversos , Hemorragia Pós-Operatória/etiologia , Hemorragia Pós-Operatória/terapia , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Estações do Ano , Fatores Sexuais , Deiscência da Ferida Operatória/etiologia , Infecção da Ferida Cirúrgica/etiologia , Fatores de Tempo , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/mortalidade
20.
Angiología ; 59(1): 29-37, ene.-feb. 2007. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-051920

RESUMO

Introducción. El control clínico del tratamiento endovascular de la enfermedad aneurismática de la aorta abdominal se basa en la valoración de la evolución del tamaño del aneurisma, la permeabilidad de la endoprótesis y la detección de fugas. Objetivo. Comparar la ecografía Doppler (ED) color con la tomografía axial computarizada (TAC) en la evaluación del tamaño del aneurisma y la detección de fugas en el tratamiento endovascular de aneurismas de aorta abdominal. Pacientes y métodos. Estudio prospectivo entre enero y diciembre de 2005. En 14 pacientes sometidos a tratamiento endovascular se realizó ED color y TAC a 1, 6 y 12 meses. Se compararon los tamaños del aneurisma mediante la prueba t para muestras dependientes y estudio de correlación. Sensibilidad, especificidad, valor predictivo positivo y valor predictivo negativo y el coeficiente de concordancia kappa se calcularon para la detección de fugas. Resultados. El control clínico medio fue de 9,4 meses y se compararon 49 exploraciones. El diámetro medio del aneurisma a los tres meses de control clínico fue de 51,2 cm con ED color y de 52,5 cm con TAC (p = no significativo). El coeficiente de correlación ascendió a 0,97 (p < 0,001). Todos los dispositivos se mantuvieron permeables. En detección de fugas, el estudio ED color obtuvo una sensibilidad, especificidad, valor predictivo positivo y valor predictivo negativo de 75, 61, 20 y 95%, respectivamente (kappa = 0,61). Conclusiones. El estudio ED color obtiene una excelente correlación con la TAC en la medida del tamaño de los aneurismas. En cambio, posee un valor predictivo positivo muy bajo para la detección de fugas


Introduction. Clinical monitoring of the endovascular treatment of aneurysmal disease of the abdominal aorta is based on evaluating the progression of the size of the aneurysm, the patency of the stent and the detection of leaks. Aim. To compare colour Doppler ultrasonography (DU) with computerised axial tomography (CAT) for evaluating the size of the aneurysm and the detection of leaks in the endovascular treatment of abdominal aortic aneurysms. Patients and methods. A prospective study between January and December 2005; colour DU and CAT scans were conducted in 14 patients submitted to endovascular treatment at 1, 6 and 12 months. Sizes of the aneurysms were compared by means of the t test for dependent samples and correlation studies. Sensitivity, specificity, predictive positive value and predictive negative value and the kappa coefficient of agreement were calculated for leak detection. Results. The mean period of clinical monitoring was 9.4 months and 49 examinations were compared. The mean diameter of the aneurysm at three months’ clinical monitoring was 51.2 cm with colour DU and 52.5 cm with CAT scanning (p = non-significant). The correlation coefficient was 0.97 (p < 0.001). Patency was maintained in all the devices. In the detection of leaks, the results of the colour DU study for sensitivity, specificity, predictive positive value and predictive negative value were 75, 61, 20 and 95%, respectively (kappa = 0.61). Conclusions. The colour DU study correlates very well with CAT in the measurement of the size of aneurysms. In contrast, it has a very low predictive positive value for the detection of leaks


Assuntos
Humanos , Aneurisma da Aorta Abdominal/cirurgia , Ecocardiografia Doppler em Cores , Tomografia Computadorizada por Raios X , Aneurisma da Aorta Abdominal , Aneurisma da Aorta Abdominal , Reprodutibilidade dos Testes , Estudos Prospectivos , Sensibilidade e Especificidade , Seguimentos , Valor Preditivo dos Testes
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