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1.
Int Cancer Conf J ; 13(1): 17-21, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38187177

RESUMO

Dermatomyositis is an idiopathic inflammatory myopathy with cutaneous manifestations, which is associated with several types of malignancies, yet it has been rarely linked to neuroendocrine tumors (NETs). Here we report two cases of dermatomyositis associated with NETs of differing primary sites. Case 1: A 46-year-old female presented with a facial rash and proximal muscle weakness of both extremities. Investigations revealed elevated creatine kinase (CK) and positive anti-transcriptional intermediary factor 1-γ antibody (TIF1γ). The patient had been diagnosed with dermatomyositis and underwent a total body CT scan, which revealed prominent mediastinal lymphadenopathy, which a subsequent biopsy determined to be neuroendocrine carcinoma of small cell type. Treatment with high-dose corticosteroids was initiated, in addition to chemotherapy-based oncological management. Case 2: A 54-year-old female presented with a facial rash, progressive dyspnea, and general malaise. Laboratory investigations revealed positive anti-melanoma differentiation-associated gene-5 (MDA5) and positive anti-Ro antibody, with a normal level of creatine kinase (CK). A chest CT scan revealed multiple ground-glass opacities. Despite treatment with high-dose intravenous methylprednisolone, IVIG and an infusion of the anti-IL-6 sarilumab [Kevzara], the patient rapidly deteriorated and was intubated. Within days, the patient developed bowel ischemia and underwent a laparotomy which was then complicated by an invasive infection. This resulted in patient's death. Pathology results from colonic tissue demonstrated an appendiceal neuroendocrine tumor. These cases demonstrate the heterogeneity and complexity of dermatomyositis in association with neuroendocrine tumors.

3.
West J Emerg Med ; 21(5): 1067-1075, 2020 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-32970556

RESUMO

INTRODUCTION: Pulmonary opacities in COVID-19 increase throughout the illness and peak after ten days. The radiological literature mainly focuses on CT findings. The purpose of this study was to assess the diagnostic and prognostic value of chest radiographs (CXR) for coronavirus disease 2019 (COVID-19) at presentation. METHODS: We retrospectively identified consecutive reverse transcription polymerase reaction-confirmed COVID-19 patients (n = 104, 75% men) and patients (n = 75, 51% men) with repeated negative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests. Two radiologists blindly and independently reviewed the CXRs, documented findings, assigned radiographic assessment of lung edema (RALE) scores, and predicted the patients' COVID-19 status. We calculated interobserver reliability. The score use for diagnosis and prognosis of COVID-19 was evaluated with the area under the receiver operating characteristic curve. RESULTS: The overall RALE score failed to identify COVID-19 patients at presentation. However, the score was inversely correlated with a COVID-19 diagnosis within ≤2 days, and a positive correlation was found six days after symptom onset.Interobserver agreement with regard to separating normal from abnormal CXRs was moderate (k = 0.408) with low specificity (25% and 27%). Definite pleural effusion had almost perfect agreement (k = 0.833) and substantially reduced the odds of a COVID-19 diagnosis. Disease distribution and experts' opinion on COVID-19 status had only fair interobserver agreement. The RALE score interobserver reliability was moderate to good (intraclass correlation coefficient = 0.745). A high RALE score predicted a poor outcome (intensive care unit hospitalization, intubation, or death) in COVID-19 patients; a score of ≥5 substantially increased the odds of having a poor outcome. CONCLUSION: Chest radiography was found not to be a valid diagnostic tool for COVID-19, as normal or near-normal CXRs are more likely early in the disease course. Pleural effusions at presentation suggest a diagnosis other than COVID-19. More extensive lung opacities at presentation are associated with poor outcome in COVID-19 patients. Thus, patients with more than minimal opacities should be monitored closely for clinical deterioration. This clinical application of CXR is its greatest strength in COVID-19 as it impacts patient care.


Assuntos
Betacoronavirus , Regras de Decisão Clínica , Técnicas de Laboratório Clínico/métodos , Infecções por Coronavirus/diagnóstico por imagem , Pulmão/diagnóstico por imagem , Pneumonia Viral/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Área Sob a Curva , Betacoronavirus/isolamento & purificação , COVID-19 , Teste para COVID-19 , Estudos de Casos e Controles , Infecções por Coronavirus/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Pandemias , Prognóstico , Curva ROC , Radiografia Torácica , Reprodutibilidade dos Testes , Estudos Retrospectivos , SARS-CoV-2 , Método Simples-Cego
4.
Harefuah ; 157(6): 365-366, 2018 Jun.
Artigo em Hebraico | MEDLINE | ID: mdl-29964375

RESUMO

INTRODUCTION: Prolonged hospitalizations are a major challenge for any society and to the Israeli health system in particular. Identifications of predictors underlines the areas that require comprehensive interventions to prevent long hospital stays. Analysis of the literature points out that discharges from internal medicine wards should be preplanned and coordinated. It is obvious that the care of those with special needs such as the elderly, dependent, lonely, disabled and patients with comorbidities mandates the development of proper community-based care that will be a continuation of in-hospital therapy. It seems inevitable that this urgent need will require a medical professional whose main task will be coordination of care in and out of the hospital.


Assuntos
Hospitalização , Tempo de Internação , Idoso , Humanos , Israel
5.
J Rheumatol ; 45(3): 310-319, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29335340

RESUMO

OBJECTIVE: Anticitrullinated protein antibodies (ACPA) have major diagnostic significance in rheumatoid arthritis (RA). ACPA are directed against different citrullinated antigens, including filaggrin, fibrinogen, vimentin, and collagen. The presence of ACPA is associated with joint damage and extraarticular manifestations, suggesting that ACPA may have a significant role in the pathogenesis of RA. METHODS: To verify the effect of ACPA on RA-immune cells, peripheral blood mononuclear cells (PBMC) from cyclic citrullinated peptide (CCP)-positive patients with RA and healthy controls were cocultured in vitro with ACPA. ACPA-positive stained cells were analyzed by flow cytometry and the effect of ACPA on mRNA expression levels was evaluated by real-time PCR. We tested whether the stimulatory effects induced by ACPA could be inhibited by the addition of a new multiepitope citrullinated peptide (Cit-ME). RESULTS: We found that ACPA bind specifically to PBMC from CCP-positive patients with RA through the Fab portion. ACPA induce upregulation of pathogenic cytokine expression (4- to 13-fold increase) in PBMC derived from CCP-positive patients with RA. Moreover, ACPA upregulated IL-1ß and IL-6 mRNA expression levels by 10- and 6-fold, respectively, compared to control IgG. Cit-ME, a genuine ligand of ACPA, inhibited the ACPA-induced upregulation of IL-1ß and IL-6 by 30%. CONCLUSION: ACPA bind to a limited percentage of PBMC and upregulate inflammatory cytokine expression, suggesting that ACPA is involved in RA pathogenesis. Targeting ACPA to decrease their pathogenic effects might provide a novel direction in developing therapeutic strategies for RA.


Assuntos
Artrite Reumatoide/sangue , Autoanticorpos/sangue , Citrulina/imunologia , Leucócitos Mononucleares/metabolismo , Peptídeos Cíclicos/metabolismo , Transcriptoma/imunologia , Afinidade de Anticorpos/imunologia , Citrulina/síntese química , Proteínas Filagrinas , Humanos , Fragmentos Fab das Imunoglobulinas/metabolismo , Fragmentos Fc das Imunoglobulinas/metabolismo , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Interleucina-6/genética , Interleucina-6/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase em Tempo Real , Estatísticas não Paramétricas
6.
Autoimmun Rev ; 15(4): 393-6, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26808075

RESUMO

BACKGROUND: Over the last few decades, several studies have demonstrated the connection between Rheumatoid Arthritis (RA) and Ischemic Heart Disease (IHD). The additional risk for RA patients to also suffer from IHD varies based on the definition of the diseases in question, the populations evaluated, and the variables included in the studies. OBJECTIVES: To quantify the association between RA and IHD according to certain demographics as well as traditional cardiovascular risk factors in order to determine their roles in the development of coronary artery disease among patients with RA. METHODS: Using data from the largest HMO in Israel, the Clalit Health Services, we selected for patients with RA. These patients were compared with age and sex matched controls with regards to the prevalence of IHD in a case-control study. Chi-square and t-tests were used for univariate analysis and a logistic regression model was used for multivariate analysis. RESULTS: The study included 11,782 patients with RA and 57,973 age and sex matched controls. The prevalence of IHD in patients with RA was increased compared with the prevalence in controls (16.6% and 12.8% respectively, P<0.001). In a multivariate analysis, RA was associated with higher proportions of IHD (OR 1.346, 95% confidence interval 1.255-1.431).


Assuntos
Artrite Reumatoide/imunologia , Isquemia Miocárdica/complicações , Artrite Reumatoide/complicações , Estudos de Casos e Controles , Humanos , Isquemia Miocárdica/epidemiologia , Prevalência , Fatores de Risco
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