
Clinical Phenotypes of COPD Patients Between in Plateau and Plain
Pulmonary DiseaseChronic ObstructiveWe aimed to collect clinical and radiological data of patients with stable COPD in plateau and plain, and compare the clinical phenotypic characteristics and imaging features of COPD patients in these two areas.

Comparison of Genomic and Transcriptomic Patterns Between CTC and Metastatic Tumormetastatic Tumor...
NSCLC Stage IVNSCLC Stage IIIBThis study aims to understand the metastasis in advanced NSCLC through comparing genomic and transcriptomic patterns between the circulating tumor cells and metastatic tumor cells by single cell sequencing analysis.

Involvement of Polymorphonuclear Neutrophils and Platelets in Severe Form of COVID-19
Covid19The main objective is to quantify the population of reverse migrating neutrophils in patients with COVID-19.

Structural and Microbiological Characterization of Endotracheal Tube Biofilm in Patients at Increased...
Biofilm FormationStructural and Microbiological Characterization of Endotracheal Tube Biofilm1 moreVentilator-associated pneumonia (VAP) remains the most frequent healthcare-associated infection (HAI) in the intensive care unit (ICU) and one of the most critical risk factors associated with both significant morbidity as well as mortality. Although VAP treatment relies on early and appropriate antimicrobial therapy, several preventive measures have been described in the literature in order to limit its incidence and clinical impact in the ICU. Among these, preventing biofilm formation on the inner surface of the endotracheal tube appears to hold promise. Yet there is a lack of clinical relevant data documenting a causal relation between biofilm formation and VAP. Designed to overcome this critical limitation, the BIOPAVIR study intends to provide a better structural and microbiological characterization of endotracheal tube biofilm in critically ill patients at increased risk for the development of VAP in ICU during COVID-19 pandemic.

Analysis of SARS-CoV2 Urine Viral Particles and Association With Proximal Tubular Dysfunction
SARS-CoV2 InfectionProximal Tubule DysfunctionThe primary goal is to detect Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV2) urine viral particles in patients in intensive care units, hospitalized for coronavirus Coronavirus Disease-19 (COVID-19) infection, and correlate the presence of the virus in the urine with proximal tubular dysfunction (defined by the association of at least 2 abnormalities: tubular proteinuria, renal phosphate leak, uricosuria, normoglycemic glycosuria, amino aciduria)

Pulmonary Inflammation in COVID-19 ARDS
ARDS Due to Disease Caused by Severe Acute Respiratory Syndrome Coronavirus 2COVID-19 Acute Respiratory Distress SyndromePatients older than 18 years of age, with COVID-19 related ARDS (C-ARDS) hospitalized in the ICU and invasively mechanically ventilated will be included in the study. This is an observational cohort study. After informed consent by the next of kin, and within the first 72 hours of invasive mechanical ventilation a blood and a Broncho Alveolar Lavage Fluid (BALF) sample will be collected. If the patients remain invasively mechanically ventilated a second and third blood and BALF sample will be collected every 7-10 days.

Perspectives and Management of Atypical Asthma
AsthmaTo evaluate the awareness/knowledge, clinical practice of atypical asthma among respiratory specialists and primary care practitioners (PCPs) in China.A total of 1166 respiratory specialists and 799 PCPs participated in the questionnaire survey via WeChat. The questionnaire included six major items, divided into physician demographic characteristics, awareness, diagnosis, medication prescription, assessment/education, and proposal.

Risk Factors Analysis After Anterior Cervical Surgery
Cervical SpondylosisThis study is to collect and summarize the cases of airway obstruction after anterior cervical operation through retrospective case analysis, to explore the risk factors of airway obstruction after anterior cervical operation, to provide the basis for the construction of evaluation system and provide reference for the nursing of postoperative complications.

Practical Usability of EGFR Mutation Detection in ctDNA From Resectable NSCLC
Lung NeoplasmsThe aim of the study is to assess the practical usability of EGFR mutation detection in ctDNA from early NSCLC.

HOspital NEtwork STudy - Preparation for a Randomized Evaluation of Anti-Pneumonia Strategies
Hospital-acquired PneumoniaVentilator Associated PneumoniaHospital Acquired and Ventilator Associated Pneumonia (HAP/VAP) pose a significant burden to patients admitted to the Intensive Care Unit (ICU). Reported incidence ranges from 10-16% in all ICU patients (including HAP and VAP) and around 20-30% in ventilated patients (VAP). Patients with HAP/VAP have a high mortality rate. The estimated attributable mortality of VAP is 6-13%. Randomized Controlled Trials (RCTs) are the gold standard for evaluating medical interventions, but are difficult to perform in this population. Several preventive and therapeutic treatment options are being developed that will require evaluation in phase-III trials. These trials are challenging due to the relatively low incidence of the outcome (e.g. HAP/VAP) or of the domain under study (e.g. specific antibiotic resistant infections) and the requirement of informed consent in critically ill patients. There is a need for a well-organized and well-trained international RCT network that enables efficient execution of a series of RCTs in this population. The aim of the current study is to set up an infrastructure to prospectively enroll patients at risk of HAP/VAP in ICUs in several European countries. Site personnel will be trained to obtain a GCP (Good Clinical Practice) certification (if not already done), to timely identify and enroll patients at risk of HAP/VAP, to timely identify occurrence of HAP/VAP, collect informed consent forms, collect source data, enter data into a clinical database, and use a dedicated system to reply to queries. Site sample collection, processing, identifying the causative organism, and antibiotic susceptibility testing will be validated and adapted if required where possible. Where site infrastructure and regulations allow, the possibility of automated data collection of included participants will be explored to ensure sustainability of the future platform. Furthermore, collected data will be used to inform future diagnostic, preventive and therapeutic trials. E.g. they may support assumptions in sample size calculations and expected number of enrolled participants, they may help in prioritizing interventions, or they may be used in simulations of adaptive trials to optimize decision rules.