Active clinical trials for "Pneumonia"

Solid organ transplant (SOT) recipients have increased incidence of infections with MDRO pathogens. This difference leads to a disparity in antibiograms between SOT recipients and other hospitalized patients.

Coronavirus 2 (SARS-CoV2) has been identified as the pathogen responsible for severe acute respiratory syndrome associated with severe inflammatory syndrome and pneumonia (COVID-19). Haemostasis abnormalities have been shown to be associated with a poor prognosis in these patients with this pneumonia. In a Chinese series of 183 patients, the hemostasis balance including thrombin time, fibrinogenemia, fibrin degradation products and antithrombin III were within normal limits. Only the D-Dimer assay was positive in the whole cohort with an average rate of 0.66 µg / mL (normal <50 µg / mL). These hemostasis parameters were abnormal mainly in patients who died during their management; the levels of D-dimers and fibrin degradation products were significantly higher while the antithrombin III was reduced. The findings on the particular elevation of D-dimers in deceased patients as well as the significant increase in thrombin time were also reported in another series. Higher numbers of pulmonary embolisms have been reported in patients with severe form of SARS-COV2 (data in press). This research is based on the hypothesis that the existence of deep vein thrombosis (DVT) could make it possible to screen patients at risk of pulmonary embolism and to set up a curative anticoagulation. The main objective is to describe the prevalence of deep vein thrombosis in patients hospitalized in intensive care for acute respiratory failure linked to documented SARS-COV2 pneumonia, within 24 hours of their admission.

Covid-19 infection is an on-going pandemic with worse diagnosis in adults with comorbid conditions such as hypertension and cardiopulmonary diseases. Obstructive sleep apnea (OSA) is common in those comorbidities and may contribute to worse prognosis for the Covid-19 cases.

The investigators intend to investigate the carriage of pneumococci and other respiratory microbes since the introduction of pneumococcal conjugate vaccines (Prevenar 7 and Prevenar 13). The principal aim is to gain a collection of samples that can be used to help investigate any changes that might occur in the epidemiology of microbes that are carried in the upper respiratory tract and which may cause respiratory disease, sepsis or meningitis after the introduction of Prevenar. Nasopharyngeal and nasal swabs will be taken from up to 2,000 children aged 4 years and under in each year of the study. Swabs will be processed using traditional microbiology and molecular diagnostic techniques and isolated microbes such as S. pneumoniae further characterised using molecular methods. The investigators will also ask parents to complete a short questionnaire requesting: basic demographic data; vaccine history; recent illness; overseas travel and antibiotic usage. The study will contribute to the success of the introduction of pneumococcal conjugate vaccines and will play a central role in maintaining confidence. The study will also help provide information for future vaccine policy as further vaccines are developed against microbes which cause respiratory disease, sepsis and meningitis.

According to various studies Covid 19 pneumonia has a very similar clinical course to Acute Respiratory Distress Syndrome (ARDS) which has clarified by Berlin definition. Based on this similarity, extracellular fluid of lungs and diffuse alveolar damage should be observed in covid 19 pneumonia as well. Extracellular water (ECW) can be determine by using whole body bioimpedence system (NİCaS). The aim of this study is to investigate the effect of ECW on the clinical apperence of covid 19 pneumonia clinical course.

Our overall hypothesis is that genetic variations in innate immunity genes predispose patients to varying responses after injury by altering the systemic and local inflammatory responses. In addition, we hypothesize that these genetic differences are associated with different clinical outcomes

A prospective observational study to evaluate clinical, dosimetrical, functional, and biological factors in predicting radiation pneumonitis.

In order to verify the clinical value and safety of Xiyanping injection in children with CAP, we intend to carry out this multi-center, large-sample, non-intervention clinical research through more rigorous and scientific design. Considering the current status of clinical research in children in China,research use real-world research methods.

Severe COVID-19 is associated with a hypercoagulable state, with a high risk of thrombotic phenomena such as pulmonary thromboembolism (PE). Its diagnostic suspicion is complicated, due to the overlap of symptoms of PE with those of COVID-19 itself. Therefore, it is essential to improve PE prediction to optimise the performance of confirmatory imaging tests such as thoracic CT angiography. Early diagnosis has relevant therapeutic implications, as it justifies starting anticoagulant treatment early, with a possible positive impact on the clinical evolution of these patients. The CHOD risk scale has recently been described: the acronym for C-reactive protein concentration, heart rate, oxygen saturation, and D-Dimer levels. Its initial description was carried out in a study in a single hospital centre. proving to be an easy-to-apply tool, useful for predicting the appearance of PE in patients hospitalized for COVID-19. The objective of this study is to carry out an external validation of this scale in patients hospitalized for COVID-19 pneumonia, through an observational, cross-sectional, multicenter, real-life study in patients hospitalized for severe COVID-19 pneumonia, confirmed by objective methods, and showing high D-dimer values. Imaging tests with CT angiography will be performed in patients with elevated D-Dimer, following international clinical practice regulations. Given that they will be consecutive patients, CT angiography will be performed in all patients regardless of the patient's clinical probability of PE as long as they meet the inclusion criteria and none of the exclusion criteria. To calculate the PE predictive power of the CHOD scale in the validation cohort, a methodology similar to that used in the construction cohort will be used, that is, the use of a ROC curve. Taking into account that a similar predictive value (with a maximum error of 5%) between the CHOD scale in the construction cohort and that of this study (validation cohort) will be considered as an adequate external validation, and taking into account a statistical power of 80%, an alpha error of 5% and a maximum loss of patients of 15%, the required sample size is 245 patients. Since 7 centres initially participate, each of which will have to contribute 35 valid consecutive patients for the analysis.

A retrospective, blineded, multicenter study of the InferRead CT Pneumonia.AI to evaluate the performance in identifying non-contrast chest CT scans containing pneumonia findings.