Results: 1197

Criterios de laboratorio clínico y su utilidad como predictores del diagnóstico de síndrome cardiopulmonar por hantavirus

Rev. chil. infectol; 36 (3), 2019
Resumen Introducción: La infección por hantavirus es una zoonosis emergente, endémica en Chile, generando el síndrome cardiopulmonar por hantavirus (SCPH), caracterizado por disfunción cardiopulmonar con falla respiratoria rápidamente progresiva y altamente letal. Para una orientación clínica pr...

Role of low dose 256-slice CT perfusion imaging in predicting mediastinal lymph node metastasis of lung cancer

SUMMARY OBJECTIVE: CT perfusion (CTP) is an imaging technique that can be used to evaluate the changes in the microcirculation of tumor tissues. Our study aimed to investigate the role of CTP in predicting mediastinal lymph node metastasis. METHODS: Clinical data of 58 patients who received surgical re...

Sexually transmitted infections - laboratory diagnosis

The Guidelines Project, an initiative of the Brazilian Medical Association, aims to combine information from the medical field in order to standardize producers to assist the reasoning and decision-making of doctors. The information provided through this project must be assessed and criticized by the phy...

The expression of and preoperative correlation between heat-shock protein 70, euroscore, and lactate in patients undergoing cabg with cardiopulmonary bypass

Abstract Objetive: Coronary artery bypass grafting (CABG) with cardiopulmonary bypass (CPB) improved symptoms and increased survival and quality of life in patients with coronary artery disease. However, it should be the main cause of a complex organic systemic inflammatory response that greatly contrib...

Diagnostic performance of qfr for the evaluation of intermediate coronary artery stenosis confirmed by fractional flow reserve

Abstract Introduction: Quantitative flow ratio (QFR) is a novel method enabling efficient computation of FFR from three-dimensional quantitative coronary angiography (3D QCA) and thrombolysis in myocardial infarction (TIMI) frame counting. We decided to perform a systematic review and quantitative meta-...

Clinical and biomedical applications of surface plasmon resonance systems

Rev. invest. clín; 71 (2), 2019
Abstract Surface plasmon resonance (SPR)-based biosensors offer superior analytical features such as simplicity, sensitivity, and specificity when compared to conventional methods in clinical analyses. In addition, they deliver real-time monitoring of label-free analytes with high-throughput approaches r...

Validation of multiplex PCR for the diagnosis of acute bacterial meningitis in culture negative cerebrospinal fluid

Arq. neuropsiquiatr; 77 (4), 2019
ABSTRACT This study evaluated the operational characteristics of the multiplex polymerase chain reaction (PCR) for cerebrospinal fluid (CSF) from patients with cellular and biochemical characteristics of acute bacterial meningitis and positive or negative CSF cultures. Methods: Multiplex PCR was perform...

Serum PTH reference values in an adult Brazilian population: implications for the diagnosis of hyperparathyroidism

ABSTRACT Objective: To define serum parathyroid hormone (PTH) reference values in carefully selected subjects following the recommended pre-analytical guidelines. Subjects and methods: First, 676 adults who would be submitted to thyroidectomy were evaluated. Patients using interfering medications or wi...

Prediction of gestational diabetes mellitus in the first trimester: comparison of maternal fetuin-A, N-terminal proatrial natriuretic peptide, high-sensitivity C-reactive protein, and fasting glucose levels

ABSTRACT Objective We investigated the utility of maternal fetuin-A, N-terminal proatrial natriuretic peptide (pro-ANP), high-sensitivity C-reactive protein (hs-CRP), and fasting glucose levels at 11-14 gestation weeks for predicting pregnancies complicated by gestational diabetes mellitus (GDM). Subj...

Could semiquantitative analysis of real-time ultrasound elastography distinguish more liver parenchyma alterations of nonalcoholic fatty liver disease in patients with polycystic ovary syndrome?

ABSTRACT Objective: Nonalcoholic fatty liver disease is the commonest diffuse liver disease, of which women with polycystic ovary syndrome are at an increased risk. The aim of the present study was to assess the diagnostic value of the semiquantitative strain parameters of real-time ultrasound elastogra...