All clinical trials

To understand the pathophysiological basis of heritable pain syndromes. This will consist of a number of components: Determine the genetic basis for heritable pain syndromes. Investigate the pain symptoms, psychological co-morbidity and quality of life in patients with heritable pain syndromes. Use quantitative sensory testing to investigate abnormalities in sensory processing. Use imaging modalities to investigate the neural correlates of pain perception in heritable channelopathies. In select patients to perform skin biopsy to determine if there has been any damage to C-fibres. To perform skin biopsy in order to culture fibroblasts and neural crest stem cells for future studies into the molecular basis of altered pain perception. To use neurophysiological tests, the axon reflex, and conditioning challenges to determine how peripheral nerves, in heritable channelopathies and unusual pain syndromes, have been altered. Microneurographic recordings for directly detecting the function of pain fibres in peripheral nerves. Knowledge gained from the study will be used to aid the further development of genetic testing and specific pain questionnaires for the diagnosis of heritable pain syndromes secondary to channelopathies. Ultimately better knowledge of underlying pathophysiology in these heritable pain conditions may inform the development of novel treatments.

FeNO measurements provide the physician with means of evaluating an asthma patient's response to anti-inflammatory therapy, as an adjunct to the established clinical and laboratory assessments in asthma. Interpretation of FeNO profiles is based on the nitric oxide plateau. To achieve plateau, the duration of exhalation must be sufficient (at least 4 seconds for children <12 years and > 6 seconds for children > 12 years (ATS/ERS, 2005). Measurement of FeNO using the 6-sec mode may provide a viable alternative in children as young as age 4 years who may have difficulty maintaining exhalation for a full 10 seconds.

To investigate the patient-related risk factors for peri-implant disease in partially edentulous patients rehabilitated with implants supported crown or bridge so as to provide evidence for clinical prevention and control.

This study evaluates the perinatal factors influencing body composition at discharge in very preterm infants and the relationship between fat free mass and further neurocognitive development.

The total knee replacement has become a routine procedure. Survival rate of over 90% after 10 years are generally reported. However, complications and reoperation may still occur for many reasons, and some of them may be related to component design: loosening (tibial above), polyethylene wear, knee stiffness, ligamentous instability, etc ... . Therefore, new designs can, at least in theory, improve the results of conventional models. In this study, the investigators want to compare retrospectively data concerning survival rates of patients wearing total knee prosthesis with mobile plate for over 10 years, with the ones published in the literature for conventional fixed-bearing prostheses.

The purpose of this study is to assess the value of circulating tumor cells (CTC)for non-small cell lung cancer in the postoperative recurrence monitoring by comparing the CTCs, CT and tumor markers at different time points.The time of CTC and carcinoembryonic antigen(CEA) detection is baseline, 2~7 days, 3 months, 6 months, 12 months, 24 months, 36 months after the surgery. And the time of CT detection is 6 months, 12 months, 24 months, 36 months after the surgery.

Coronary heart disease (CHD) has a serious health threaten to population. PCI is a well-proved measure in CHD management. However, the knowledge about the real-life PCI use and how evidence-based therapies in routine clinical practice is limited. In a large-scale hospital in Northeast China, the investigators will examine various factors of 3007 consecutive PCI inpatient cases from January 1, 2010 to October 31, 2014. The medical records will be reviewed and abstracted to evaluate the clinical treatment pattern and outcomes. Basic data and innovative evidence will accelerate evidence-based clinical practice, and improve patients' outcomes in future finally.

This study consists of two clinical series. With the first series investigators monitor the healing of skin grafts with bioimpedance measurements. The bioimpedance measurement is done with a purpose built patch that has electrodes in contact with the wound and reference electrodes. In the second series the investigators monitor closed operational wounds (breast reconstruction surgery patients) with bioimpedance measurements. This series is also conducted with bioimpedance measurements but the wounds are operational wounds. Both groups will have 20 patients.

The aim of this study is to determine whether clinical, sensory and motor development correlated with the values obtained from Electroneuromyography and DTI in postoperative follow up patients who underwent primary repair after the total median nerve injuries. Median nerve is one of three major nerves of hand and forearm and often injure with glass etc, in follow up of healing; clinical examination and ENMG are often used. Both of these methods are subjective, noninvasive and objective new method is required. In this context; differences between intact, recovering and not healed nerve tissue's diffusions have led to the hypothesis; "The recovery of the repaired nerve tissue can be monitored by Diffusion Tensor Imaging method".

Chronic Hemodialysis is a treatment for kidney failure. It involves the construction of three treatment sessions per week extrarenal lasting 4 hours each. This treatment is necessary but it has an impact on the quality of life of patients.The investigators believe that to improve the overall quality of life in hemodialysis patients, the quality of each hemodialysis session must be improved. The quality criterion is not only medical, it must also take into account the patient's perception about the course of its meeting : that's what we call quality of experience of the dialysis session. Our daily healthcare practice shows that each hemodialysis session is experienced differently by the patient according to different factors : physical, psychological, relational, technical, temporal. The quality of the experience of a hemodialysis session could be positively influenced by the use of supplements occupational assets or liabilities, for improving patient satisfaction or by enhancing its relationship with the staff. Indeed, a preliminary study ( in the nephrology unit of our establishment in January 2012) of 8 patients undergoing active occupational educational activity during hemodialysis, showed that the experience of the hemodialysis session was potentially improvable (experienced patients improved, reduced cramps ... ). However, to assess the impact of such measures on the lives of the dialysis session and the quality of life in general, the investigators need to measure the quality of living of a dialysis session. There is not, at present, specific tool to measure the quality of the experience of a hemodialysis session. This tool would measure the impact of a caregiver support occupational during dialysis sessions. The main objective of this study is to create and validate an instrument to measure the quality of living of a hemodialysis of chronic renal insufficiency subject.