CARLOS AUGUSTO VENTURA PINTO

(Fonte: Lattes)
Índice h a partir de 2011
3
Projetos de Pesquisa
Unidades Organizacionais
LIM/44 - Laboratório de Ressonância Magnética em Neurorradiologia, Hospital das Clínicas, Faculdade de Medicina

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  • article 10 Citação(ões) na Scopus
    Analysis of risk factors and diseases associated with atherosclerosis in the progression of carotid artery stenosis
    (2016) BATAGINI, Nayara Cioffi; SILVA, Erasmo Simao da; PINTO, Carlos A. V.; PUECH-LEAO, Pedro; LUCCIA, Nelson de
    Objective The objective of this study was to analyze the roles of demographic, clinical, and laboratory factors on the progression of atherosclerotic stenosis in carotid bifurcation. It was based on prospective information from records entered on a specific application form for follow-up outpatients at a tertiary university service. Methods Consecutive symptomatic and asymptomatic patients (n=210) who had undergone more than one carotid duplex scan but no surgical intervention were selected for the analysis. The patients were divided into two groups: patients whose duplex scans did not show bilateral progression of carotid stenosis and patients with carotid stenosis progression of <50%, 50%-69%, or >70%. Clinical and demographic parameters were compared between groups. Results Group II levels of plasma urea (51.627.8mg/dl) and fibrinogen (493.2 +/- 113.3mg/dl) were higher than the Group I levels (43.0 +/- 14.9mg/dl and 441.3 +/- 106.7mg/dl, respectively) with statistical significance (p urea=0.013 and p fibrinogen=0.018). Paradoxically, the mean body mass index was higher in Group I (26.4 +/- 4.6kg/m(2)) than in Group II (24.6 +/- 3.9kg/m(2); p=0.02). Conclusions Traditional risk factors for the development of atherosclerosis in a carotid bifurcation are important but not unique. Metabolic and inflammatory factors can contribute to disease progression.
  • article 12 Citação(ões) na Scopus
    Volumetry and biomechanical parameters detected by 3D and 2D ultrasound in patients with and without an abdominal aortic aneurysm
    (2016) BATAGINI, Nayara Cioffi; VENTURA, Carlos Augusto Pinto; RAGHAVAN, Madhavan L.; CHAMMAS, Maria Cristina; TACHIBANA, Adriano; SILVA, Erasmo Simao da
    The objective was to demonstrate the ability of ultrasound (US) with 3D properties to evaluate volumetry and biomechanical parameters of the aorta in patients with and without abdominal aortic aneurysm (AAA). Thirty-one patients with normal aortas (group 1), 46 patients with AAA measuring 3.0-5.5 cm (group 2) and 31 patients with AAA 5.5 cm (group 3) underwent a 2D/3D-US examination of the infra-renal aorta, and the images were post-processed prior to being analyzed. In the maximum diameter, the global circumferential strain and the global maximum rotation assessed by 2D speckle-tracking algorithms were compared among the three groups. The volumetry data obtained using 3D-US from 40 AAA patients were compared with the volumetry data obtained by a contemporary computed tomography (CT) scan. The median global circumferential strain was 2.0% (interquartile range (IR): 1.0-3.0), 1.0% (IR: 1.0-2.0) and 1.0% (IR: 1.0-1.75) in groups 1, 2 and 3, respectively (p < 0.001). The median global maximum rotation decreased progressively from group 1 to group 3 (1.38o (IR: 0.77-2.13), 0.80o (IR: 0.57-1.0) and 0.50o (IR: 0.31-0.75), p < 0.001). AAA volume estimations by 3D-US correlated well with CT (R-2 = 0.76). In conclusion, US with 3D properties is non-invasive and has the potential to evaluate volumetry and biomechanical characteristics of AAA.