There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
Atrial fibrillation(AF)is the commonest arrhythmia worldwide and can lead to significant morbidity and mortality, posing an increasing public health burden. Restoration of sinus rhythm (SR) is the preferred strategy in symptomatic patients but outcomes with anti-arrhythmic drugs (AAD) are poor. The alternatives to AAD are two-fold.Firstly, catheter ablation (CA)- a technique that uses catheters (thin tubes) to deliver small 'heat lesions' to areas of the heart to eliminate AF. Secondly, surgical ablation, where multiple incisions are made in the atria to restore SR. Long term results from this traditional surgical approach are excellent however as it is technically difficult open-heart procedure with significant morbidity and mortality, it is seldom used. CA is very effective in restoring SR in the early stages of AF when it is a paroxysmal (intermittent) rhythm disturbance. If not treated at this stage AF inevitably evolves into a more persistent or permanent state and becomes more difficult to treat with CA. Therefore, the optimum approach to treat patients with symptomatic long standing persistent AF has yet to be determined and remains a key area of on-going research. New minimally invasive, thoracoscopically assisted surgical(closed-heart)approaches have recently developed which ablate a wide area around the pulmonary veins, and may offer advantages over the best current strategies in CA. There are also clear advantages for patients with greater safety and less discomfort when compared to traditional surgical open-heart procedures. At present there is small amount of encouraging data on this thoracoscopic surgical technique but there is no data comparing these two modalities of treatment in persistent AF patients. The investigators therefore wish to prospectively investigate the safety and efficacy of this thoracoscopic surgical technique and compare with CA in this group of patients. MRI scanning will also be used to visualise the effects of ablation by analysis of scar formation. The study hypothesises that thoracoscopics surgical ablation is a
Comparison of epidural anesthesia and general anesthesia for laparoscopic cholecystectomy, patients in the surgery and the effectiveness of anesthesia after surgery, the incidence of side effects or complications, and postoperative recovery of the body of the differences
The aim of this study is the comparison between the effects of supplementation with vitamin A (retinyl palmitate) or placebo for 6 months on gene expression of T CD4+ lymphocyte in multiple sclerotic patient.
With a worldwide proliferation of simulation centers, it is essential to explore the optimal setting for laparoscopic training and investigate different learning approaches, e.g. a self-directed approach. Therefore, the researchers investigated the following in a randomized controlled trial: the impact of instructor feedback vs. an independent, self-directed approach when training a complex operational task on a laparoscopic virtual reality simulator. The study hypothesis is that instructor feedback has a pivotal effect on surgical skills when training on a virtual reality simulator.
Cases of physical and psychological stress problems is the need to prevent the risk of depression, primary care model will help to prevent depression. Many scholars have advocated for depression treatment not only concern symptom control and relief, prevention of recurrence should also be aware. The literature found cases had depression, with cognitive strategy bias , may cause recurrence of depression, under the influence of stress. The study was to assist the physical and mental disorder patient caused by stress and depression patient having cognitive and emotional regulation, and increased adapting Ability by ongoing two separate treatment groups ,Mindfulness-based Cognitive Group Therapy and psycho-physiological stress regulation Group Therapy. In addition, psychological groups can also help regulation daily Trivia stress, study will try to know about how group therapy's effects on patient's immune system.Research has three purposes,to validation 2 group model's results in assisting psycho-physiological stressed and depression patient, to establish group leader training center and prepare groups' standard procedure manuals,and to understand the patient's psycho-physical stress reaction on the immune system and fat cell hormone.
Cocaine/Crack Dependence has been associated with neuropsychological impairments mainly in executive functions and decision-making, which are predominantly managed by the prefrontal cortex (PFC) in the brain. However, none study in Neuropsychological Rehabilitation (NR) has been done in order to remediate the executive functioning in this population. The aim of this research is to investigate the impact of neuropsychological intervention based on the stimulation of cognitive functions such as attention, planning, organization, logical reasoning, executive functioning, and decision making. For this research it will be proposed interventions through motivational strategies and board games, especially chess because it has been associated with PFC functioning, since it is a game which requires complex cognitive abilities, such as: inhibitory control, mental flexibility, sustained attention, future planning and decision-making. There will be two groups of patients with cocaine/crack dependence (n = 56), one with NR (group A, n = 28) and another without NR (group B, n = 28). Group B will be submitted to the placebo intervention. Both groups will be submitted to an extensive battery of neuropsychological tests and psychopathological rating scales before and after interventions. A sub-group will also be submitted to functional magnetic resonance imaging and biomarkers measures (BDNF and cortisol). The hypothesis is that group A will present a pronounced improvement not only on the neuropsychological test but also on the PFC functioning in neuropsychological functions compared to group B.
It is inevitable that nearly both anesthesiologist and nurse anesthetist take a zero tolerance approach to avoidable safety problems in the provision of anesthesia. We would like to study the stress upon anesthesia personnel by using Suanprung Stress Test (SST) - a well-documented, psychological stress test, and Siriraj Anesthesia-related Stress Test (SAST) - a new developed open-ended opinion poll, to scrutinize the daily rounds stress and yield the solution to eradicate or alleviate those worries as well as improve both physical and mental health to handle the situation of difficulties.
The purpose of this study is to determine if repeated sessions of transcranial direct current stimulation (tDCS) are effective for treating chronic subjective tinnitus. Previous studies have reported brief improvements in tinnitus after safe and noninvasive stimulation of the auditory cortex or limbic system. The investigators hypothesize that a greater improvement in tinnitus will be achieved following repeated sessions of tDCS that target both auditory and limbic systems.
Good glycemic control is superior to poor glycemic control in reducing risk of interventricular septum thickness among fetuses of diabetic mothers
Based on the study about carbon monoxide in human inflammatory and other beneficial physiological function , now we'll be going to research its application in neonates .Phase 1 Study as a foundation for the further test is, the safety and Adverse reaction study of newborn to inhaled CO