CARLOS ROBERTO RIBEIRO DE CARVALHO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Cardio-Pneumologia, Faculdade de Medicina - Docente
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina
LIM/09 - Laboratório de Pneumologia, Hospital das Clínicas, Faculdade de Medicina - Líder
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina
LIM/09 - Laboratório de Pneumologia, Hospital das Clínicas, Faculdade de Medicina - Líder
16 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 16
- Adenopathy and Pulmonary Infiltrates in a Japanese Emigrant in Brazil(2011) KAWASSAKI, Alexandre M.; HAGA, Hironori; DANTAS, Thiago C. A.; MUSOLINO, Rafael S.; BALDI, Bruno G.; CARVALHO, Carlos R. R.; KAIRALLA, Ronaldo A.; MAUAD, Thais
article 0 Citação(ões) na Scopus Avaliação dos artigos de pneumologia publicados em periódicos brasileiros além do Jornal Brasileiro de Pneumologia(2011) BALDI, Bruno Guedes; CARVALHO, Carlos Roberto RibeiroIn Brazil, research on pulmonology has become increasingly more visible in recent years. In addition to the Brazilian Journal of Pulmonology, other journals have contributed to that by publishing relevant articles in this area. The objective of this article was to briefly report the most relevant studies on pulmonology that were published in other important Brazilian journals between 2009 and 2010. Altogether, there were 56 articles related to the various subareas that compose the field of respiratory diseases.article 37 Citação(ões) na Scopus Doxycycline use in patients with lymphangioleiomyomatosis: safety and efficacy in metalloproteinase blockade(2011) PIMENTA, Suzana Pinheiro; BALDI, Bruno Guedes; ACENCIO, Milena Marques Pagliarelli; KAIRALLA, Ronaldo Adib; CARVALHO, Carlos Roberto RibeiroObjective: Lymphangioleiomyomatosis (LAM) is characterized by lung cysts, whose development is associated with matrix metalloproteinase (MMP) hyperactivity, principally that of MMP-2 and MMP-9. Our objective was to compare LAM patients and controls in terms of the levels of these MMPs, as well as to determine the safety and efficacy of treatment with doxycycline, a potent MMP inhibitor. Methods: Prospective clinical study involving female LAM patients who received doxycycline (100 mg/day) for six months. Urine and blood samples were collected for the quantification of MMP-2 and MMP-9 before and after the treatment period. Samples from 10 healthy women were also collected. Results: Of the 41 LAM patients who started the treatment, 34 completed the protocol. Serum and urinary MMP-9 levels were significantly lower in the controls than in the LAM patients (p < 0.0001). Comparing pre- and post-treatment values, we found that the median level of MMP-9 in serum decreased from 919 ng/mL to 871 ng/mL (p = 0.05), whereas that of MMP-9 in urine decreased from 11,558 pg/mL to 7,315 pg/mL (p = 0.10). After treatment, the median level of MMP-2 in serum was significantly lower (p = 0.04) and urinary MMP-2 levels were undetectable. Nausea, diarrhea, and epigastric pain were the most prevalent adverse affects and were often self-limiting. There was only one case in which the patient discontinued the treatment because of side effects. Conclusions: We have demonstrated, for the first time, a decrease in serum and urine levels of MMPs in LAM patients treated with doxycycline, which proved to be a safe medication, with mild and well-tolerated side effects.- Images in Pulmonary, Critical Care, Sleep Medicine and the Sciences Diffuse Micronodules with Spontaneous Resolution(2011) KAIRALLA, Ronaldo; KAWANO-DOURADO, Leticia; BALDI, Bruno; CARVALHO, Carlos
- Small airway remodeling in acute respiratory distress syndrome: a study in autopsy lung tissue(2011) MORALES, Maina M. B.; PIRES-NETO, Ruy C.; INFORSATO, Nicole; LANCAS, Tatiana; SILVA, Luiz F. F. da; SALDIVA, Paulo H. N.; MAUAD, Thais; CARVALHO, Carlos R. R.; AMATO, Marcelo B. P.; DOLHNIKOFF, MarisaIntroduction: Airway dysfunction in patients with the Acute Respiratory Distress Syndrome (ARDS) is evidenced by expiratory flow limitation and dynamic hyperinflation. These functional alterations have been attributed to closure/obstruction of small airways. Airway morphological changes have been reported in experimental models of acute lung injury, characterized by epithelial necrosis and denudation in distal airways. To date, however, no study has focused on the morphological airway changes in lungs from human subjects with ARDS. The aim of this study is to evaluate structural and inflammatory changes in distal airways in ARDS patients. Methods: We retrospectively studied autopsy lung tissue from subjects who died with ARDS and from control subjects who died of non pulmonary causes. Using image analysis, we quantified the extension of epithelial changes (normal, abnormal and denudated epithelium expressed as percentages of the total epithelium length), bronchiolar inflammation, airway wall thickness, and extracellular matrix (ECM) protein content in distal airways. The Student's t test or the Mann-Whitney test was used to compare data between the ARDS and control groups. Bonferroni adjustments were used for multiple tests. The association between morphological and clinical data was analyzed by Pearson rank test. Results: Thirty-one ARDS patients (A: PaO(2)/FiO(2) <= 200, 45 +/- 14 years, 16 males) and 11 controls (C:52 +/- 16 years, 7 males) were included in the study. ARDS airways showed a shorter extension of normal epithelium (A:32.9 +/- 27.2%, C:76.7 +/- 32.7%, P < 0.001), a larger extension of epithelium denudation (A:52.6 +/- 35.2%, C:21.8 +/- 32.1%, P < 0.01), increased airway inflammation (A:1(3), C:0(1), P = 0.03), higher airway wall thickness (A:138.7 +/- 54.3 mu m, C:86.4 +/- 33.3 mu m, P < 0.01), and higher airway content of collagen I, fibronectin, versican and matrix metalloproteinase-9 (MMP-9) compared to controls (P = 0.03). The extension of normal epithelium showed a positive correlation with PaO(2)/FiO(2) (r(2) = 0.34; P = 0.02) and a negative correlation with plateau pressure (r(2) = 0.27; P = 0.04). The extension of denuded epithelium showed a negative correlation with PaO(2)/FiO(2) (r(2) = 0.27; P = 0.04). Conclusions: Structural changes in small airways of patients with ARDS were characterized by epithelial denudation, inflammation and airway wall thickening with ECM remodeling. These changes are likely to contribute to functional airway changes in patients with ARDS.
- The impact factor for the Brazilian Journal of Pulmonology is arriving(2011) CARVALHO, Carlos Roberto Ribeiro
- The epidemiology of acute respiratory failure in hospitalized patients: A Brazilian prospective cohort study(2011) FRANCA, Suelene Aires; TOUFEN JUNIOR, Carlos; HOVNANIAN, Andre Luiz D.; ALBUQUERQUE, Andre Luis P.; BORGES, Eduardo R.; PIZZO, Vladimir R. P.; CARVALHO, Carlos Roberto RibeiroPurpose: The purpose of this study was to assess risk factors associated with the development of acute respiratory failure (ARF) and death in a general intensive care unit (ICU). Materials and Methods: Adults who were hospitalized at 12 surgical and nonsurgical ICUs were prospectively followed up. Multivariable analyses were realized to determine the risk factors for ARF and point out the prognostic factors for mortality in these patients. Results: A total of 1732 patients were evaluated, with an ARF prevalence of 57%. Of the 889 patients who were admitted without ARF, 141 (16%) developed this syndrome in the ICU. The independent risk factors for developing ARF were 64 years of age or older, longer time between hospital and ICU admission, unscheduled surgical or clinical reason for ICU admission, and severity of illness. Of the 984 patients with ARF, 475 (48%) died during the ICU stay. Independent prognostic factors for death were age older than 64 years, time between hospital and ICU admission of more than 4 days, history of hematologic malignancy or AIDS, the development of ARF in ICU, acute lung injury, and severity of illness. Conclusions: Acute respiratory failure represents a large percentage of all ICU patients, and the high mortality is related to some preventable factors such as the time to ICU admission.
- An Official ATS/ERSARS/ALAT Statement: Idiopathic Pulmonary Fibrosis: Evidence-based Guidelines for Diagnosis and Management(2011) RAGHU, Ganesh; COLLARD, Harold R.; EGAN, Jim J.; MARTINEZ, Fernando J.; BEHR, Juergen; BROWN, Kevin K.; COLBY, Thomas V.; CORDIER, Jean-Francois; FLAHERTY, Kevin R.; LASKY, Joseph A.; LYNCH, David A.; RYU, Jay H.; SWIGRIS, Jeffrey J.; WELLS, Athol U.; ANCOCHEA, Julio; BOUROS, Demosthenes; CARVALHO, Carlos; COSTABEL, Ulrich; EBINA, Masahito; HANSELL, David M.; JOHKOH, Takeshi; KIM, Dong Soon; KING JR., Talmadge E.; KONDOH, Yasuhiro; MYERS, Jeffrey; MUELLER, Nestor L.; NICHOLSON, Andrew G.; RICHELDI, Luca; SELMAN, Moises; DUDDEN, Rosalind F.; GRISS, Barbara S.; PROTZKO, Shandra L.; SCHUENEMANN, Holger J.This document is an international evidence-based guideline on the diagnosis and management of idiopathic pulmonary fibrosis, and is a collaborative effort of the American Thoracic Society, the European Respiratory Society, the Japanese Respiratory Society, and the Latin American Thoracic Association. It represents the current state of knowledge regarding idiopathic pulmonary fibrosis (IPF), and contains sections on definition and epidemiology, risk factors, diagnosis, natural history, staging and prognosis, treatment, and monitoring disease course. For the diagnosis and treatment sections, pragmatic GRADE evidence-based methodology was applied in a question-based format. For each diagnosis and treatment question, the committee graded the quality of the evidence available (high, moderate, low, or very low), and made a recommendation (yes or no, strong or weak). Recommendations were based on majority vote. It is emphasized that clinicians must spend adequate time with patients to discuss patients' values and preferences and decide on the appropriate course of action.
- Follow-up after acute respiratory distress syndrome caused by influenza a (H1N1) virus infection(2011) TOUFEN JR., Carlos; COSTA, Eduardo Leite V.; HIROTA, Adriana Sayuri; LI, Ho Yeh; AMATO, Marcelo Brito Passos; CARVALHO, Carlos Roberto RibeiroBACKGROUND: There are no reports on the long-term follow-up of patients with swine-origin influenza A virus infection that progressed to acute respiratory distress syndrome. METHODS: Four patients were prospectively followed up with pulmonary function tests and high-resolution computed tomography for six months after admission to an intensive care unit. RESULTS: Pulmonary function test results assessed two months after admission to the intensive care unit showed reduced forced vital capacity in all patients and low diffusion capacity for carbon monoxide in two patients. At six months, pulmonary function test results were available for three patients. Two patients continued to have a restrictive pattern, and none of the patients presented with abnormal diffusion capacity for carbon monoxide. All of them had a diffuse ground-glass pattern on high-resolution computed tomography that improved after six months. CONCLUSIONS: Despite the marked severity of lung disease at admission, patients with acute respiratory distress syndrome caused by swine-origin influenza A virus infection presented a late but substantial recovery over six months of follow-up.
- Immunoglobulin G4-related systemic sclerosing disease in a patient with sclerosing cholangitis, inflammatory pseudotumors of the lung and multiple radiological patterns: a case report(2011) DIAS, Olivia Meira; KAWASSAKI, Alexandre de Melo; HAGA, Hironori; CUKIER, Alberto; CARVALHO, Carlos Roberto Ribeiro