Active clinical trials for "Fever"

Fever is a common symptom in patients with infectious diseases. This study hopes to understand the epidemiological characteristics of patients hospitalized due to fever through observational research, including: clinical characteristics, etiology of fever and prognosis after treatment. So as to further search for biochemical or other serological indicators to predict the diagnosis and prognosis of infectious fever and non-infectious fever, and try to establish relevant prediction models.

This study intends to target patients who underwent surgery under general anesthesia during the study period and developed malignant hyperthermia during or after surgery. Therefore, the total sample size was estimated to be about 50 people based on the past incidence of this rare disease. Every year, about 20 patients and their families who developed malignant hyperthermia during or after surgery will participate in this nationwide study (estimated by the current incidence of malignant hyperthermia), and about 1-5 patients will be admitted to Peking University Third Hospital participate in this research. Relevant specimens were collected from malignant hyperthermia (MH) patients and their family members for genetic analysis to determine the mutation of MH-related pathogenic gene loci.

Febrile seizures are one of the most common clinical diseases in pediatric neurology. It occurs between 6 months and 6 years of age and occurs in ~2-5% of children. According to the age, frequency, duration, and type of seizures FS is divided into simple febrile seizures and complex febrile seizures Differentiation between febrile seizures and non-ictal events associated with fever such as shivering or dizziness is challenging. Therefore, precise diagnosis of FS after paroxysmal episodes associated with fever is often hindered by the lack of an objective biomarker With the widespread application of technologies, such as molecular biology, in medicine, some biomarkers for predicting or diagnosing FS have attracted attention. Imuekemhe et al in 1989 and 1996 found that lactic acid in the serum and cerebrospinal fluid of children with FS was significantly increased . Arginin-vasopressin hormone AVP released by the pituitary gland, has been shown to be involved in the thermoregulatory response to fever and convulsions Although AVP is unstable in the peripheral blood and, therefore, unsuited for diagnostic use the C-terminal portion of the AVP precursor copeptin has been recognized as a robust marker of AVP secretion . Wellman et al. found that the serum copeptin and Von Willebrand factor of children with FS were significantly higher than those of the control group .

Familial Mediterranean fever (FMF) is the most common auto-inflammatory disease (prevalence: 1-5 / 10,000 inhabitants). It is caused by mutations in the MEFV gene, which encodes variants of the Pyrine inflammasome. Inflammasomes are protein complexes of the innate immunity that produce pro-inflammatory cytokines (interleukin-1β). In vitro, our preliminary results demonstrated that the activation of the inflammatory pyrine (measured by the concentration of interleukin-1β) by kinase inhibitors is significantly increased in FMF patients compared to healthy subjects. Furthermore, a measurement of cell death gave significant results in differentiating the patients from the controls. The performance of this functional has been tested, fast and simple diagnostic test on common mutations and wish to assess its characteristics for MEFV mutations. The investigators hypothesize that this quick and simple functional test can serve as a diagnostic tool for FMF and can quantitatively discriminate against patients with different mutations (genotypes).

In this study, case information and specimens of patients with malignant hyperthermia(MH) will be collected from all over China, and gene fragment analysis, sanger sequencing method and/or high-throughput whole-genome sequencing will be performed. The MH bioinformatics database will be established to find the pathogenic gene and mutation site of MH in Chinese. Based on the bioinformatics database, the genetic law of MH family will be studied. According to the results of the study, the guideline for the diagnosis and treatment of MH that is in line with Chinese population biology characteristics will be formulated.

Acute undifferentiated febrile infection (AUFI) is a common presenting syndrome in low-resource settings and better diagnostics are urgently needed to improve patient management and guide disease prevention interventions. Assessment of the host gene expression response to infection in endemic populations has demonstrated significant promise as a new approach to identifying patients with enteric fever and for potential in differentiating between other causes of AUFI. Signatures identified through new data analytic techniques could be developed into a point-of-care test for use in endemic settings. In this multisite diagnostic evaluation study we will collect prospective clinical, laboratory and diagnostic data from two endemic settings to evaluate host gene expression signatures for detecting enteric fever and for determining the cause of AUFI in LMIC settings.

The study main objective is to assess the immune status of children and adults who have never vaccinated, they will receive the first dose of 17DD yellow fever vaccine provided by the study and will be monitored for 10 years. Depending on the results of the analyzed of the data, the period of monitoring may be extended.

This registry has the aim to collect epidemiological and clinical data of classical FUO cases in Italian Internal medicine Dept. and in Italian Infection diseases Dept.

This prospective multi-site observational study aims to describe causes and clinical outcomes of acute febrile illness as well as host biomarkers in patients aged >28 days residing in rural areas in Laos, Myanmar, Thailand, the Thai-Myanmar border region, and Bangladesh and presenting with acute febrile illnesses (≤ 14 days duration) to participating health facilities. This study is funded by the UK Wellcome Trust. The grant reference number is 215604/Z/19/Z

This is a multi-center, retrospective clinical study to analyze the clinical features, laboratory indicators, imaging changes, treatment options and long-term prognosis in patients with sever fever with thrombocytopenia syndrome. All hospitalized patients with sever fever with thrombocytopenia diagnosed between 2016 and 2022 were included from the electronic medical record system of 8 centers, and demographics, hospitalization information, clinical information, laboratory or imaging examinations, treatment options, and outcomes were collected.