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 aim of this study is to evaluate the impact of concomitant main pancreatic duct repair or reconstruction during minimally invasive pancreatic tumor enucleation on long-term patient prognosis and quality of life.
This is a prospective single-arm clinical study to evaluate the role of NAC after chemotherapy among patients with AML can promote hematopoietic recovery and does not affect the remission rate of the leukemia.
This is a single-center, randomized controlled study. The aim of this study is to compare the impact of left bundle branch area pacing versus traditional right ventricular pacing on the incidence of atrial fibrillation in patients with atrioventricular block.
The goal of this clinical trial is to compare the clinical outcomes using different cetrorelix acetate in the context of a GnRH antagonist protocol for ovarian stimulation in women undergoing IVF or intracytoplasmic sperm injection(ICSI) treatment.The main question it aims to answer is whether the generic cetrorelix acetate is non-inferior to the reference product in the GnRH antagonist based protocol for women undergoing IVF. Ovarian stimulation was achieved by several types of follicle-stimulating hormone(FSH) or by FSH combined with luteinizing hormone activity. Daily dose of generic cetrorelix acetate (0.25 mg SC) or original cetrorelix acetate (0.25 mg SC) will be administered when the lead follicle was 14 mm. When more than two follicles reached 17 mm, oocyte maturation was triggered with 250 mcg of recombinant human chorionic gonadotropin.
Infertile women attending for PGT at the Centre of Assisted Reproduction and Embryology, Queen Mary Hospital and Kwong Wah Hospital will be recruited during ovarian stimulation for IVF. Subsequently, they will be randomly assigned on the day of oocyte retrieval by a laboratory staff into one of the following two groups in a 1:1 ratio : (1) the microfluidic chip group and (2) the density gradient centrifugation group for sperm preparation and subsequent use in fertilization. Other IVF procedures will be the same as the standard practice of the Centre. Both women and clinicians will be blinded from the group allocation i.e. a double blind study.
Massive blood loss occurs in metastatic spinal tumor resection and may cause severe complications. The objective of this study is to investigate whether the use of tranexamic acid will reduce perioperative and postoperative bleeding when compared to those without use of tranexamic acid.
This is a real world study to determine the short-term efficacy and safety of Elaboration transcatheter arterial chemoembolization (E-TACE) for hepatocellular carcinoma (HCC)
Orthokeratology(OK) is currently one of the effective methods for treating myopia, reshaping the corneal epithelium to change refractive power. Due to its contact with the ocular surface, long-term wearing could lead to symptoms and signs of dry eye disease(DED) , as well as changes in tear film stability. This prospective study randomly divided 300 children and adolescents with myopia into OK group and spectacles group, with a follow-up of 12 months. At baseline, 1, 3, 6, and 12 months, non-invasive tear breakup time (NIBUT), ocular surface disease index (OSDI) and visual analogue score (VAS) score, tear meniscus height (TMH), conjunctival hyperemia (RS score) and meibomian gland (MG) scores, tear MMP-9 concentration, and point-of-care Lymphotoxin alpha (LTA) test.
Postoperative pulmonary complications(PPCs) is a common complication in patients undergoing surgery under general anesthesia, particularly in obese patients. Relevant studies have shown that PPCs are more common in patients undergoing laparoscopic sleeve gastrectomy, which contribute to significant increases in morbidity, mortality, length of postoperative hospital stay and medical consumption. According to some reports, the incidence of PPCs in obese patients after abdominal surgery is about 40%. The reduction in pulmonary volume and respiratory muscular activation after major abdominal surgery due to surgery-related shallow breathing, pain, longterm bed rest, mucociliary clearance disorder, and diaphragmatic dysfunction may be the main causes of PPCs. Numerous studies have demonstrated physiological improvement related to prone positioning. Prone positioning consists of placing a patient face down. Prone positioning has been used for to improve oxygenation in patients who require invasive mechanical ventilation for acute respiratory distress syndrome (ARDS). It has also been applied to non-intubated patients with acute respiratory failure (ARF), to improve oxygenation and delay or even avoid the need for invasive ventilation. So, the purpose of this study is to observe whether preoperative prone position training can reduce the incidence of pulmonary complications after laparoscopic sleeve gastrectomy.
Validation of CARPET prognostic model for septic shock after allo-HSCT: a multicenter, prospective, and cohort study