Navegando por Palavras-chave "angiography"

Agora exibindo 1 - 7 de 7
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Angiotomografia abdominal no paciente com sangramento gastrointestinal ativo
    (Universidade Federal de São Paulo (UNIFESP), 2013-11-27) Reis, Fatima Regina Silva [UNIFESP]; Ippolito, Giuseppe D Ippolito [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    The gastrointestinal bleeding represents a common medical emergency, with considerable morbidity and mortality rates. That’s why the prompt diagnosis is essential for a better prognosis of these patients. Endoscopy is the main diagnostic tool in this context, however, when the gastrointestinal hemorrhage is massive, the bleeding site can be obscured during endoscopy; in addition, endoscopy is not always available and a trained professional might not be present. Bowel preparation is necessary for colonoscopy, which doesn’t evaluate the most part of small intestine. Scintigraphy does not allow precise anatomic localization of the bleeding and it’s unavailable in the emergency setting. The use of capsule endoscopy is inappropriate in the acute setting, particularly in the emergency department at night and it has high costs. Digital angiography is invasive, has risks associated with vascular access, besides little availability in the emergency setting. On the other hand, angiotomography (angio-CT) is fast, highly available and minimally invasive. It is a promising alternative in these patients algorithm, being capable to determine the localization and the cause of bleeding with high accuracy and to guide treatment. Basing in a critical literature review and our own experience, we propose an angio- CT’s protocol for the patient with gastrointestinal bleeding.
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Demographic, clinical, and angiographic data of patients with Takayasu arteritis in Brazil
    (Elsevier B.V., 1998-10-01) Sato, E. I.; Hatta, F. S.; Levy-Neto, M.; Fernandes, S.; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP); Universidade Estadual de Campinas (UNICAMP)
    We collected clinical, demographic, and angiographic data of Takayasu arteritis (TA) patients followed at Rheumatology Division of three Public University Centers (UNIFESP, USP, and UNICAMP) located in São Paulo State, Brazil. Clinical and demographic data were obtained from 73 patients (61 female; 50 white) the mean age at time of diagnosis was 27 y.o. and the mean follow-up time was 5 years. the following clinical features were observed along the evolution of these patients: absent or reduced pulses in upper limbs (85%), arterial bruit (64.5%), claudication of upper members (57%), headache (45%), hypertension (35.5%), dizziness (29%), cardiac bruit (29%), weight loss (27.5%), arthralgia or arthritis (26%), fever (24.5%) and claudication of lower limbs (20.5%). According to new angiographic classification of Takayasu arteritis performed in 28 patients followed at UNTFESP, with routine full aortography, 21% were classified as type I, 4% as type IIa, 4% as type III, 14% as type IV and 57% as type V. No patients had type IIb. Patients with Takayasu arteritis in São Paulo State Brazil showed female predominance and arterial involvement pattern similar to the one observed in Japan, with more than 20% classified as type I with exclusive involvement of the branches from the aortic arch. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Direct Vertebral Artery Access for the Endovascular Treatment of Basilar Artery Aneurysms
    (Edizioni Centauro, 2012-03-01) Vanzin, J. R.; Manzato, L. Bambini; Slaviero, F. [UNIFESP]; Strzelecki, M.; D'Agostini Annes, R.; Universidade de São Paulo (USP); Intervent Neuroradiol Neurol & Neurosurg Serv; Universidade Federal de São Paulo (UNIFESP); Univ Passo Fundo
    The femoral approach has been considered the preferred technique for the endovascular treatment of intracranial aneurysms. Occasionally, aneurysms are not amenable to the standard femoral approach. We describe four cases of basilar artery aneurysm that were treated by the direct vertebral artery access of V1 at the cervical region. The direct vertebral artery access technique can provide an alternative route in selected cases for the treatment of basilar artery aneurysms.
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Spectral domain optical coherence tomography and angiographic findings in central serous chorioretinopathy complicated by bilateral nonrhegmatogenous retinal detachment associated with systemic corticosteroids
    (Taylor & Francis Inc, 2009-10-01) Arantes, Tiago E. F. [UNIFESP]; Garcia, Claudio R. [UNIFESP]; Rossi, Monica R. [UNIFESP]; Muccioli, Cristina [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Purpose: To report spectral domail optical coherence tomography (OCT) and angiographic findings in exudative retinal detachment complicating central serous chorioretinopathy.Design: interventional case report.Methods: 33-year old man with bilateral nonrhegmatogenous retinal. detachment, misdiagnosed as uveitis, iatrogenically treated with systemic corticosteroids.Results: Discontinuation of corticotherapy led to anatomic and visual improvement. Fluorescein angiography demonstrated multiple leakage points; indocyanine green angiography disclosed large hyperfluorescent patches in the choroid and OCT demonstrated retinal detachment with dense subretinal deposits.Conclusion: the recognition of this atypical presentation with a combination of opthalmoscopic, angiographic and OCT findings may avoid inappropriate diagnosis and treatment with corticosteroids.
  • Nenhuma Miniatura disponível
    Item
    Somente Metadadados
    Takayasu arteritis in a Brazilian multicentre study: children with a longer diagnosis delay than adolescents
    (Clinical & Exper Rheumatology, 2014-05-01) Clemente, Gleice [UNIFESP]; Hilário, Maria Odete Esteves [UNIFESP]; Lederman, Henrique Manoel [UNIFESP]; Silva, C. A.; Sallum, A. M.; Campos, L. M.; Sacchetti, S.; Santos, M. C. dos; Ferriani, Virginia Paes Leme [UNIFESP]; Sztajnbok, F.; Gasparello, R.; Oliveira, S. Knupp; Lessa, M.; Bica, B.; Cavalcanti, A.; Robazzi, T.; Bandeira, M.; Terreri, Maria Teresa Ramos Ascensão [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP); Santa Casa Misericordia Sao Paulo; Universidade do Estado do Rio de Janeiro (UERJ); Universidade Federal do Rio de Janeiro (UFRJ); Universidade Federal de Pernambuco (UFPE); Universidade Federal da Bahia (UFBA); Hosp Pequeno Principe
    Objective. To evaluate and compare demographic, clinical, laboratory and angiographic data of Brazilian children and adolescents with Takayasu's arteritis.Methods. In this Brazilian multicentre, retrospective study which included 10 paediatric rheumatology centres, we identified 71 children and adolescents with Takayasu's arteritis which were diagnosed before their 19th birthday. The patients' demographic, clinical, laboratorial and angiographic data were recorded. The participants were divided into two groups: children, defined by the WHO as younger than 10 years old (group 1: 36 patients) and adolescents, defined as individuals aged 10 to 19 years old (group 2: 35 patients). Features of both groups concerning disease manifestations were compared.Results. A total of 21 (58.3%) patients in group 1 and 30 (85.7%) patients in group 2 were girls (p=0.01). The mean age at disease onset, the mean time to diagnosis, and the mean follow-up time were 5.7 and 12.7, 1.8 and 0.7, 7.2 and 3.6 years, respectively, in groups 1 and 2 (p<0.001, 0.001 and <0.001). At initial evaluation, constitutional symptoms (77.5%) were the most predominant symptoms and decreased peripheral pulses (85.9%) was the most predominant clinical sign without differences between groups. The main laboratory findings were increased erythrocyte sedimentation rate followed by leukocytosis. Anaemia, thrombocytosis and higher platelet levels were significantly more frequent in group 1 (p=0.031, 0.001 and 0.018). Angiographic data were similar in both groups.Conclusion. Children presented more laboratory abnormalities but clinical and angio graphic characteristics were similar to those presented by the adolescents. Diagnosis delay is longer in younger patients.
  • Imagem de Miniatura
    Item
    Acesso aberto (Open Access)
    Teste ergométrico precoce após infarto do miocárdio: comparação com ecocardiograma, monitorização eletrocardiográfica e arteriografia coronariana
    (Sociedade Brasileira de Cardiologia - SBC, 2008-03-01) Leite, Wagner Aparecido [UNIFESP]; Gil, Manoel Adan [UNIFESP]; Lima, Valter Correia [UNIFESP]; Luna Filho, Bráulio [UNIFESP]; Servantes, Denise Maria [UNIFESP]; De Paola, Angelo Amato Vincenzo [UNIFESP]; Oliveira Filho, Japy Angelini [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    BACKGROUND: Predischarge exercise testing early after myocardial infarction is useful for risk stratification, exercise prescription, and assessment of prognosis and treatment. OBJECTIVE: The objective of this study was to compare the findings of exercise testing early after myocardial infarction with those of echocardiography, electrocardiographic monitoring (24-hour Holter monitoring) and coronary angiography. METHODS: We evaluated 60 cases (mean age of 51.42 ± 9.34 years), of which 46 were males (77%). The symptom-limited maximal exercise test according to the Naughton protocol12 was performed between the sixth day of hospitalization and hospital discharge, with the patients on medication. During hospitalization, the patients underwent echocardiography, electrocardiographic monitoring and coronary angiography. The significance level was set at 0.05 (a = 5%). RESULTS: Exercise testing had a poor performance in the detection of multivessel coronary artery disease (sensitivity, 42%; specificity, 69%). No significant differences were found when the presence of ischemia on exercise test was compared with multivessel coronary disease, complex ventricular arrhythmias on electrocardiographic monitoring, and the finding of an ejection fraction lower than 60% on echocardiography (p = 0.56), as well as with the presence of multivessel lesions, complex ventricular arrhythmias on electrocardiographic monitoring and abnormal ejection fraction on echocardiography (p = 0.36). CONCLUSION: The presence of ischemia during exercise testing was associated with the occurrence of ventricular arrhythmias on electrocardiographic monitoring, with reduced ejection fraction on echocardiography, as well as with the presence of multivessel coronary lesions, which constitutes an indicator of a high coronary risk.
  • Imagem de Miniatura
    Item
    Acesso aberto (Open Access)
    Visualizing the Choriocapillaris Under Drusen: Comparing 1050-nm Swept-Source Versus 840-nm Spectral-Domain Optical Coherence Tomography Angiography
    (Assoc Research Vision Ophthalmology Inc, 2016) Lane, Mark; Moult, Eric M.; Novais, Eduardo Amorim [UNIFESP]; Louzada, Ricardo N.; Cole, Emily D.; Lee, ByungKun; Husvogt, Lennart; Keane, Pearse A.; Denniston, Alastair K.; Witkin, Andre J.; Baumal, Caroline R.; Fujimoto, James G.; Duker, Jay S.; Waheed, Nadia K.
    PURPOSE. To investigate the appearance of choriocapillaris (CC) flow under drusen by comparing long-wavelength (1050 nm) swept-source optical coherence tomography (SS-OCT) angiography with shorter-wavelength (840 nm) spectral-domain (SD) OCT angiography. METHODS. Patients with drusen imaged on both devices on the same day were selected and graded. Ambiguous OCT angiography (OCTA) signal loss was defined as low OCTA signal on the en face OCTA CC image that also had low OCT signal in the corresponding area on the en face OCT CC image and OCT B-scans. Unambiguous OCTA signal loss was defined as low OCTA signal on the en face OCTA CC image that did not have low OCT signal in the corresponding area on the en face OCT CC image and OCT B-scans. False-positive flow impairment on SS-OCTA was defined as ambiguous OCTA signal loss on SS-OCTA but no OCTA signal loss on SD-OCTA. False-positive flow impairment on SD-OCTA was defined as ambiguous OCTA signal loss on SD-OCTA but no OCTA signal loss on SS-OCTA. RESULTS. Nine eyes from seven patients were enrolled, 23 drusen were analyzed. On 840-nm SD-OCTA, 17 drusen (73.9%) exhibited OCTA signal loss. Fourteen (82.4%) were classified as ambiguous, and three (17.6%) were classified as unambiguous