There are about 36818 clinical studies being (or have been) conducted in China. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The project will apply the methods of clinical observation experiment, (1) to collect the cognitive function data preoperatively and early postoperatively, as well as the pain score data at multiple time points pre- and postoperatively, and to observe the role of the degree of recovery of early postoperative cognitive function on acute pain and chronic pain after surgery. (2) to collect the resting-state electroencephalography (EEG) preoperatively, and to assess the role of EEG index system on the prediction of the degree of recovery of early postoperative cognitive function as well as the acute pain and chronic pain after surgery.
This clinical trial will compare antibiotic therapy with laparoscopic appendectomy in the treatment of pediatric chronic appendicitis in china. Enrolled patients will be randomised and an allocation ratio of 1:1 will be made via weighted minimisation, where half of the patients will receive antibiotic therapy with intravenous Ceftazidime sodium, while the other half will have a laparoscopic appendicectomy.
The concentration of folic acid and homocysteine in the blood can be used as independent risk factors for a variety of diseases. A sustained decrease in blood folate concentration and an increase in homocysteine concentration can damage vascular endothelial cells, causing varying degrees of neurodevelopmental abnormalities. Many clinical studies have found that anesthetics can affect blood folate and homocysteine concentration, but the effects of sevoflurane and propofol on blood folate and homocysteine concentrations are not clear. Therefore, this study aims to investigate the effects of sevoflurane and propofol on blood folate and homocysteine levels in children.
This study evaluates the effect of Expanded Pedicled Deltopectoral Flap on facial-cervical scars repair, including flap sensation, L*a*b* value,flap's elasticity,melanin content, hemoglobin content, and evaluation of scar and patient, doctor, and third-party satisfaction
Remote ischemic conditioning(RIC) is a protective systemic strategy by organs brief and sublethal ischemia to confer protection from subsequent severe ischemia in distant organs, especially for heart and brain. This study will discuss whether RIC can play a part in preventing the patients with coexistence of cerebral and coronary atherosclerosis from the recurrence of cerebral vascular disease(CVD) or coronary artery disease(CAD). This study selects patients who suffered an ischemic stroke within 14 days prior to enrollment. All patients complete cerebral and coronary artery assessment. And then the the investigators select the patients who both have at least one cerebral vascular and at least one coronary artery stenosis over 50%, or the patients who both have at least one cerebral vascular stenosis over 50% and myocardial ischemic events history. These patients will randomly divide into two groups, RIC group and non-RIC group. Non-RIC group will only accept cardio-cerebrovascular disease secondary prevention treatment. RIC group will use not only cardio-cerebrovascular disease secondary prevention treatment, but also RIC everyday for three months, 5 cycles 5min ischemic-5min reperfusion each day. For the first month, the the investigators will call RIC group patients every week for insuring compliance and adverse effect. All patients will follow up endpoint events, cardio-cerebrovascular disease secondary prevention treatment, and the adverse effect every three months, up to one year.
Clinical results on intra-arterial adjuvant chemotherapy for prevention of liver metastasis following curative resection of pancreatic cancer
We design this randomized controlled trial to compare the safety and efficacy of Oxycodone and Sufentanil for postoperative patient-controlled analgesia in patients undergoing hip surgery, with a view to finding the optimal postoperative analgesic regime with fewer adverse reactions and promoting patients' rehabilitation.
Study ROR-PH-303, ADVANCE EXTENSION, is an open-label extension (OLE) study for participants with WHO Group 1 PAH who have participated in another Phase 2 or Phase 3 study of ralinepag.
1.1 Research objectives A．To observe the fundus changes in the posterior pole (morphology, thickness, asymmetry, blood flow density, etc) with the myopia progression. B．To observe morphological changes in choroid and peripheral region of retina with myopia progression. C. To observe changes of visual function (contrast sensitivity, Microperimetry, etc) with myopia progression. D. To detect the susceptibility genes related to high myopia and myopic fundus changes; to test the levels of Vitamin D, riboflavin, transforming growth factor（TGF）, insulin-like growth factor（IGF）, fibroblast growth factor（FGF）, etc. E. To observe the changes of living quality, psychology, behavior and social activities of high myopic children. 1.2 Research design Prospective cohort study. After completing the baseline survey, the planned follow-up frequency is once a year. 1.3 Research cycle 2018.06~2038.06 (at least). 1.4 Expected results A． Registration completed a study of high myopia research for children and adolescents covering around 3,000 people; B． Establish a database information management system and workflow SOP（standard operating procedure）file for the study of high myopia registration in children and adolescents; C． Further clarify the changes in the retinal, choroidal and scleral tissue structures, blood flow density, etc. in the macular area and the optic disc; D． Revealing the changes of the retina, choroid and other tissues in the peripheral area with the progression of myopia; E． To clarify the relationship between changes in the fundus structure and changes in visual function in the posterior pole; F． Further clarify the etiology and pathogenesis of high myopia, pathological myopia and myopic fundus lesions, and identify the relationship between high myopia and pathological myopia; G． From the perspectives of society, behavior and psychology, the effects of high myopia and pathological myopia on children and adolescents will be fully demonstrated. 2. Research object 2.1 General characteristics of the research object Based on the refraction development archive system that has been constructed in Shanghai, the list of children and adolescents with high myopia was selected from the database of children's refractive development archives information in Shanghai. Children of different ages with high myopia must meet the following conditions: 1. 4-5 years old, equivalent spherical error(SE) ≤ -4.0 diopter(D）; 2. 6-8 years old, equivalent spherical error(SE) ≤ -6.0 diopter(D）; 3. 9-18 years old, equivalent spherical error(SE) ≤ -8.0 diopter(D）. 2.2 Sample size A total of 1.25 million children and adolescents are currently registered, 4,006 (0.32%) of which meet the entry requirements. Among the 4~5 year olds, there are 815 people with SE≤-4D; 842 people with SE≤-6 D among the 6~8 year olds; 2349 people with SE≤-8D among the people aged 9 and over . Taking into account the 50% non-response and the proportion of the exclusion, the initial registration number is about 2,000. 2.3 Source of study object Children and adolescents who meet the inclusion criteria in the Shanghai Children's Refractive Development Archives Information Database System.
Purpose: To compare the accuracies of computed tomographic (CT) enterography and magnetic resonance (MR) enterography for the detection and radiomics characterization of small-bowel tumors (including gastrointestinal stromal tumors, adenomas and lymphomas, etc); Hypothesis: MR enterography was noninferior to CT enterography for the diagnosis and evaluation of small bowel tumors in generally well-distended small bowel.