Found 64,778 clinical trials
Long Term Health Cohort of Premature Infants
Establish a clinical diagnosis and treatment and long-term follow-up database of preterm infants, and analyze the effects of prenatal factors (including genetic characteristics, maternal diseases, etc.), postnatal diagnosis and treatment measures and family maintenance environment after discharge on preterm infant mortality and major diseases in the near and long term.
Rare Embryonal Tumors of the Central Nervous System: International Registry
Central nervous system (CNS) tumors are the most common solid malignancies among children. Although some types of CNS tumors like medulloblastomas and low-grade gliomas are widespread and well-studied, there is a huge number of rare diseases that need further research. This international registry aims to establish a large multicenter database …
Effects of CPAP Therapy on Blood Pressure and Heart Rate Variability in Obstructive Sleep Apnea
The primary objective of this study is to determine whether the effect of continuous positive airway pressure (CPAP) therapy on 24-hour mean blood pressure (BP) in patients with obstructive sleep apnea (OSA) varies between symptom phenotypes.
The Healthy Elderly Longevity Cohort
With the completion of the human genome project, investigators can now explore new questions in human biology. Previously human genetics focused on highly penetrant, Mendelian traits; however, now rare and common variants can be discovered that affect "common" diseases that have multi-gene architecture with variable penetrance such as breast cancer, …
Molecular Studies on Hereditary Haemorrhagic Telangiectasia Families
This study will examine genes involved in the vascular dysplasia Hereditary haemorrhagic telangiectasia i(HHT)
Prediction of the Post-intensive Care Syndrome
The goal of this observational study is to assess whether a screening of patients at discharge from the intensive care unit (ICU) can predict psychological and physical problems three months later. The main questions to answer are: Can the screening method at ICU discharge predict psychological symptoms three months after …
the Difference of Follow-up Methods of Neonatal Jaundice
The goal of this observational study is to compare the effectiveness and efficiency for precaution of severe hyperbilirubinemia in neonate by different follow-up methods of neonatal jaundice. There are two kinds of follow-up methods in the investigators clinical practice. The one is internet plus follow-up model, the other is conventional …
Evaluation of New Magnetic Resonance Techniques
The aim of this research protocol is to undertake evaluation of new and emerging MR techniques in patients and healthy volunteers following software or hardware upgrades, as well as for newly developed MR techniques; to establish their feasibility, image quality and/or measurement repeatability/ reproducibility.
Ongoing Registry of Treatment of Chronic Venous Diseases
Ongoing registration of patients with varicose veins disease treated by means of conventional surgery, endovenous thermal ablations, sclerotherapy, non-tumescent non-thermal methods
Aortic Valve Diseases RISk facTOr assessmenT and Prognosis modeL Construction
This study is a multicenter cohort study including patients diagnosed with aortic valve disease during hospitalization, including aortic insufficiency and aortic valve stenosis. The primary outcome of the study was all-cause death, and the secondary outcome was cardiovascular events. Through follow-up observation, the prognostic risk factors of patients with aortic …
