Asunto(s)
Carcinoma de Células de Merkel , Neoplasias Pulmonares , Derrame Pleural Maligno , Derrame Pleural , Neoplasias Cutáneas , Carcinoma de Células de Merkel/complicaciones , Humanos , Neoplasias Pulmonares/patología , Derrame Pleural/etiología , Derrame Pleural/patología , Derrame Pleural Maligno/etiología , Neoplasias Cutáneas/complicacionesRESUMEN
El estudio bioquímico del líquido pleural es, con frecuencia, fundamental para el diagnóstico de la etiología del derrame. Existen parámetros básicos que aportan información relevante de forma inmediata (pH, glucosa, proteínas, lactato deshidrogenasa, adenosina desaminasa). Pero también existen otras magnitudes bioquímicas que pueden permitir el diagnóstico de determinadas causas de los derrames, como beta-2 transferrina, proteína-traza, creatinina, amilasa, bilirrubina, colesterol y triglicéridos o proteína C reactiva. Sin embargo, con frecuencia se solicitan al laboratorio numerosos parámetros de dudosa utilidad. La relación entre el médico asistencial y el laboratorio clínico es esencial para obtener la mayor rentabilidad diagnóstica del análisis bioquímico en líquido pleural. Una adecuada selección de los parámetros bioquímicos, a través del conocimiento y de la información compartida, conlleva una mejor aproximación diagnóstica en el estudio del derrame pleural
Biochemical studies of the pleural fluid are often a key step in the diagnostic workup. Several parameters (pH, glucose, protein, lactate dehydrogenase, adenosine deaminase) add immediate relevant information, or they can help in the diagnosis of specific causes of pleural effusion (beta-2 transferrin, beta-trace-protein, creatinine, amylase, bilirubin, cholesterol, triglycerides, and C-reactive protein). However, parameters of questionable value may also be requested. The relationship between the attending physician and the clinical laboratory is critical in order to obtain higher diagnostic efficiency. An accurate selection of the biochemical tests to perform achieves the best approach to the study of a pleural effusion
Asunto(s)
Humanos , Derrame Pleural/diagnóstico , Toracocentesis/métodos , Derrame Pleural Maligno/patología , Pruebas de Química Clínica/métodos , Neoplasias Pleurales/patología , Biomarcadores de Tumor/análisis , Neoplasias del Sistema Respiratorio/patología , Mesotelioma/patologíaRESUMEN
OBJECTIVES: To assess the accuracy of plasma levels of soluble Triggering Receptor Expressed on Myeloid cells (sTREM)-1 to diagnose infection in critical patients with systemic inflammatory response syndrome (SIRS). DESIGN AND METHODS: We prospectively studied 114 patients with SIRS criteria. The patients' plasma levels of sTREM-1 were measured within 24h of admission to the intensive care unit. The final diagnosis of infection was made independently by two investigators, who were blinded to the levels of sTREM-1. RESULTS: The area under the ROC curve of sTREM-1 for the diagnosis of sepsis was 0.62 (95% confidence interval [95% CI] 0.51-0.72). The diagnostic odds ratio of sTREM-1 after adjusting for the Infection Probability Score and procalcitonin plasma levels was 1.81 (95% CI 0.66-4.98; p=0.2508). CONCLUSIONS: In critical patients admitted with SIRS, sTREM-1 has poor discriminative power to identify patients with infection, and sTREM-1 levels do not add diagnostic information to that provided by other routinely available clinical tests.
