MARCIO VALENTE YAMADA SAWAMURA

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Instituto de Radiologia, Hospital das Clínicas, Faculdade de Medicina

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Assunto: Respiratory System ×

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Agora exibindo 1 - 10 de 23
  • article 126 Citação(ões) na Scopus
    Methotrexate and rheumatoid arthritis associated interstitial, Lung disease
    (2021) JUGE, Pierre-Antoine; LEE, Joyce S.; LAU, Jessica; KAWANO-DOURADO, Leticia; SERRANO, Jorge Rojas; SEBASTIANI, Marco; KODURI, Gouri; MATTESON, Eric; BONFIGLIOLI, Karina; SAWAMURA, Marcio; KAIRALLA, Ronaldo; CAVAGNA, Lorenzo; CASSIONE, Emanuele Bozzalla; MANFREDI, Andreina; MEJIA, Mayra; RODRIGUEZ-HENRIQUEZ, Pedro; GONZALEZ-PEREZ, Montserrat I.; FALFAN-VALENCIA, Ramces; BUENDIA-ROLDAN, Ivette; PEREZ-RUBIO, Gloria; EBSTEIN, Esther; GAZAL, Steven; BORIE, Raphael; OTTAVIANI, Sebastien; KANNENGIESSER, Caroline; WALLAERT, Benoit; UZUNHAN, Yurdagul; NUNES, Hilario; VALEYRE, Dominique; SAIDENBERG-KERMANAC, Nathalie; BOISSIER, Marie-Christophe; WEMEAU-STERVINOU, Lidwine; FLIPO, Rene-Marc; MARCHAND-ADAM, Sylvain; RICHETTE, Pascal; ALLANORE, Yannick; DROMER, Claire; TRUCHETET, Marie-Elise; RICHEZ, Christophe; SCHAEVERBEKE, Thierry; LIOTE, Huguette; THABUT, Gabriel; DEANE, Kevin D.; SOLOMON, Joshua J.; DOYLE, Tracy; RYU, Jay H.; ROSAS, Ivan; HOLERS, V. Michael; BOILEAU, Catherine; DEBRAY, Marie-Pierre; PORCHER, Raphael; SCHWARTZ, David A.; VASSALLO, Robert; CRESTANI, Bruno; DIEUDE, Philippe
    Question addressed by the study: Methotrexate (MTX) is a key anchor drug for rheumatoid arthritis (RA) management. Fibrotic interstitial lung disease (ILD) is a common complication of RA. Whether MTX exposure increases the risk of ILD in patients with RA is disputed. We aimed to evaluate the association of prior MTX use with development of RA-ILD. Methods: Through a case-control study design with discovery and international replication samples, we examined the association of MTX exposure with ILD in 410 patients with chronic fibrotic ILD associated with RA (RA-ILD) and 673 patients with RA without ILD. Estimates were pooled over the different samples using meta-analysis techniques. Results: Analysis of the discovery sample revealed an inverse relationship between MTX exposure and RA-ILD (adjusted OR 0.46, 95% CI 0.24 0.90; p=0.022), which was confirmed in the replication samples (pooled adjusted OR 0.39, 95% CI 0.19 -0.79; p=0.009). The combined estimate using both the derivation and validation samples revealed an adjusted OR of 0.43 (95% CI 0.26 0.69; p=0.0006). MTX ever-users were less frequent among patients with RA-ILD compared to those without II,D, irrespective of chest high-resolution computed tomography pattern. In patients with RA-ILD, ILD detection was significantly delayed in MTX ever-users compared to never-users (11.4 +/- 10.4 years and 4.0 +/- 7.4 years, respectively; p<0.001). Answer to the question: Our results suggest that MTX use is not associated with an increased risk of RA-ILD in patients with RA, and that ILD was detected later in MTX-treated patients.
  • article 21 Citação(ões) na Scopus
    Computed tomography in hypersensitivity pneumonitis: main findings, differential diagnosis and pitfalls
    (2018) DIAS, Olivia Meira; BALDI, Bruno Guedes; PENNATI, Francesca; ALIVERTI, Andrea; CHATE, Rodrigo Caruso; SAWAMURA, Marcio Valente Yamada; CARVALHO, Carlos Roberto Ribeiro de; ALBUQUERQUE, Andre Luis Pereira de
    Introduction: Hypersensitivity pneumonitis (HP) is a disease with variable clinical presentation in which inflammation in the lung parenchyma is caused by the inhalation of specific organic antigens or low molecular weight substances in genetically susceptible individuals. Alterations of the acute, subacute and chronic forms may eventually overlap, and the diagnosis based on temporality and presence of fibrosis (acute/inflammatory HP vs. chronic HP) seems to be more feasible and useful in clinical practice. Differential diagnosis of chronic HP with other interstitial fibrotic diseases is challenging due to the overlap of the clinical history, and the functional and imaging findings of these pathologies in the terminal stages.Areas covered: This article reviews the essential features of HP with emphasis on imaging features. Moreover, the main methodological limitations of high-resolution computed tomography (HRCT) interpretation are discussed, as well as new perspectives with volumetric quantitative CT analysis as a useful tool for retrieving detailed and accurate information from the lung parenchyma.Expert commentary: Mosaic attenuation is a prominent feature of this disease, but air trapping in chronic HP seems overestimated. Quantitative analysis has the potential to estimate the involvement of the pulmonary parenchyma more accurately and could correlate better with pulmonary function results.
  • conferenceObject
    Radiographic Fibrosis Is Associated with Accelerated Lung Function Decline in Patients with Hypersensitivity Pneumonitis
    (2020) KAWANO-DOURADO, L. C.; ARIMURA, F. E.; RODRIGUES, S. C.; SPONHOLZ, M.; LIMA, M. S.; BEDER, T.; STORRER, K. M.; SAWAMURA, M.; CATUNDA, L. G.; CARVALHO, A. Castro De; SANTOS, P. C. C.; BASILIO, C. C.; SANCHEZ, G. J. S.; NAKAGAWA, R. H.; MONTEIRO, J. T. C.; SANTOS, R. K.; PINHEIRO, M. F. S.; CUNHA, T. M.; JOHANNSON, K. A.; KAIRALLA, R. A.
  • article 5 Citação(ões) na Scopus
    Consensus statement on thoracic radiology terminology in Portuguese used in Brazil and in Portugal
    (2021) HOCHHEGGER, Bruno; MARCHIORI, Edson; RODRIGUES, Rosana; MANCANO, Alexandre; JASINOWODOLINSKI, Dany; CHATE, Rodrigo Caruso; JR, Arthur Soares Souza; SILVA, Alexandre Marchini; SAWAMURA, Marcio; FURNARI, Marcelo; ARAUJO-NETO, Cesar; ESCUISSATO, Dante; PINETTI, Rogerio; NOBRE, Luiz Felipe; WARSZAWIAK, Danny; SZARF, Gilberto; TELLES, Gustavo Borges da Silva; MEIRELLES, Gustavo; SANTANA, Pablo Rydz; ANTUNES, Viviane; CAPOBIANCO, Julia; MISSRIE, Israel; SOUZA, Luciana Volpon Soares; SANTOS, Marcel Koeningan; IRION, Klaus; DUARTE, Isabel; SANTOS, Rosana; PINTO, Erique; PENHA, Diana
    Effective communication among members of medical teams is an important factor for early and appropriate diagnosis. The terminology used in radiology reports appears in this context as an important link between radiologists and other members of the medical team. Therefore, heterogeneity in the use of terms in reports is an important but little discussed issue. This article is the result of an extensive review of nomenclature in thoracic radiology, including for the first time terms used in X-rays, CT, and MRI, conducted by radiologists from Brazil and Portugal. The objective of this review of medical terminology was to create a standardized language for medical professionals and multidisciplinary teams.
  • conferenceObject
    High Prevalence of Possible Usual Interstitial Pneumonia Pattern in Chronic Hypersensitivity Pneumonitis at a Brazilian Reference Center
    (2018) AMARAL, A. F.; SCHUBSKY, J. V.; ARIMURA, F. E.; SAWAMURA, M. V.; BALDI, B. G.; CARVALHO, C. R.
  • article 1 Citação(ões) na Scopus
    Automated Computed Tomography Lung Densitometry in Bronchiectasis Patients
    (2022) SAWAMURA, Marcio Valente Yamada; ATHANAZIO, Rodrigo Abensur; NUCCI, Maria Cecilia Nieves Teixeira Maiorano de; RACHED, Samia Zahi; CUKIER, Alberto; STELMACH, Rafael; ASSUNCAO- JR., Antonildes Nascimento; TAKAHASHI, Marcelo Straus; NOMURA, Cesar Higa
  • article 0 Citação(ões) na Scopus
    Tomographic pleuropulmonary manifestations in rheumatoid arthritis: a pictorial essay
    (2023) BRIDI, Guilherme das Posses; SAWAMURA, Marcio Valente Yamada; WANDERLEY, Mark; SOUZA, Luciana Volpon Soares; KAIRALLA, Ronaldo Adib; KAWANO-DOURADO, Leticia; BALDI, Bruno Guedes
    Rheumatoid arthritis ( RA) is an autoimmune inflammatory and heterogeneous disease that affects several systems, especially the joints. Among the extra- articular manifestations of RA, pleuropulmonary involvement occurs frequently, with different presentations, potentially in all anatomic thoracic compartments, and may determine high morbidity and mortality. The most common pleuropulmonary manifestations in patients with RA include interstitial lung disease (ILD), pleural disease, pulmonary arterial hypertension, rheumatoid lung nodules, airway disease (bronchiectasis and bronchiolitis), and lymphadenopathy. Pulmonary hypertension and ILD are the manifestations with the greatest negative impact in prognosis. HRCT of the chest is essential in the evaluation of patients with RA with respiratory symptoms, especially those with higher risk factors for ILD, such as male gender, smoking, older age, high levels of rheumatoid factor, or positive anti-cyclic citrullinated peptide antibody results. Additionally, other etiologies that may determine tomographic pleuropulmonary manifestations in patients with RA are infections, neoplasms, and drug-induced lung disease. In these scenarios, clinical presentation is heterogeneous, varying from being asymptomatic to having progressive respiratory failure. Knowledge on the potential etiologies causing tomographic pleuropulmonary manifestations in patients with RA coupled with proper clinical reasoning is crucial to diagnose and treat these patients.
  • conferenceObject
    A textural approach for quantitative CT in chronic hypersensitivity pneumonitis (cHP)
    (2019) PENNATI, Francesca; DIAS, Olivia; ANTONIAZZA, Alessio; BERETTA, Davide; ALIBONI, Lorenzo; BALDI, Bruno Guedes; SAWAMURA, Marcio; CHATE, Rodrigo Caruso; CARVALHO, Carlos Roberto Ribeiro De; ALBUQUERQUE, Andre; ALIVERTI, Andrea
  • article 26 Citação(ões) na Scopus
    COVID-19 pneumonia: what is the role of imaging in diagnosis?
    (2020) ARAUJO-FILHO, Jose de Arimateia Batista; SAWAMURA, Marcio Valente Yamada; COSTA, Andre Nathan; CERRI, Giovanni Guido; NOMURA, Cesar Higa
  • article 4 Citação(ões) na Scopus
    Post-COVID-19 tomographic abnormalities
    (2022) SAWAMURA, M. V. Y.; VERRASTRO, C. G. Y.; FERREIRA, E. V. M.; ALBUQUERQUE, A. L. P. de; RIBEIRO, S. M.; V, R. Auad; SPERANDIO, P. C. de Abreu; SOUZA, V. C.; LIMA, M. L.; PRUDENTE, R. A.; FRANCO, E. T.; FRANCO, A. C.; BALDI, B. G.; TANNI, S. E.
    BACKGROUND: The prevalence of persistent respiratory symptoms tends to be low in patients with a longer recovery time after COVID-19. However, some patients may present persistent pulmonary abnormalities. OBJECTIVE: To evaluate the prevalence of tomographic abnormalities 90 days after symptom onset in patients with COVID-19 and compare two chest high-resolution computed tomography (HRCT) analysis techniques. METHODS: A multicentre study of patients hospitalised with COVID-19 having oxygen saturation <93% on room air at hospital admission were evaluated using pulmonary function and HRCT scans 90 days after symptom onset. The images were evaluated by two thoracic radiologists, and were assessed using software that automatically quantified the extent of pulmonary abnormalities. RESULTS: Of the 91 patients included, 81% had at least one pulmonary lobe with abnormalities 90 days after discharge (84% were identified using the automated algorithm). Ground-glass opacities (76%) and parenchymal bands (65%) were the predominant abnormalities. Both chest HRCT technical assessments presented high sensitivity (95.9%) and positive predictive value (92%), with a statistically significant correlation at baseline (R = 0.80) and after 90 days (R = 0.36). CONCLUSION: The prevalence of pulmonary abnormalities on chest HRCT 90 days after symptom onset due to COVID-19 was high; both technical assessments can be used to analyse the images.