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.
Patients with successful left bundle branch pacing in our center were included in this study from April 2018 to December 2019. Baseline data was collected, and pacing parameters, ECG and echocardiographic results were analyzed during 3 years follow-up. According to whether or not a potential was recorded and the specific potential characteristics at implantation, the patients were divided into 3 groups: left bundle branch potential group; Purkinje potential group; and no-potential group. During the 3 years follow-up, the investigators collected the ECG、UCG and pacemaker parameters to analyze.
The goal of this clinical trial is to compare the postoperative outcomes based on superficial temporal versus cervical recipient vessels for midface and scalp advanced oncologic defects using free tissue flap for reconstruction. The main question it aims to answer is: • Which recipient vessel is most suitable for performing microanastomosis using free flaps for advanced midface and scalp oncologic defect. Participants will be undergo resection of advanced malignant tumors of the midface and scalp with subsequent oncological reconstruction using free tissue flap. Researchers will compare two groups where those in whom superficial temporal vessels will be used as the recipient vessels (group A) and those in whom cervical vessels will be used as the recipient vessels (group B) to see if there is a recipient vessel who is most suitable for performing microanastomosis using free flaps for advanced midface and scalp oncologic defect.
GOIZ ZAINDU ("caring early" in Basque) is a pilot study to adapt the Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER) methodology to the Basque population and evaluate feasibility and adherence to a FINGER-like multidomain intervention program. Additional aims included the assessment of efficacy on cognition and collecting data to design a large efficacy trial.
Background: Atypical atrial flutter (AAF) is an increasingly relevant clinical problem. Despite advancements in mapping and ablation techniques, the general management of these patients remain challenging especially when mapping cannot be performed during ongoing arrhythmia. There are no data whether induction of AAF is a feasible approach in these cases. Methods: The investigators retrospectively analyzed patients who underwent catheter ablation of AAF and compared procedural results between patients with ongoing tachycardia when starting the procedure and patients with induced AAF. For this retrospective study, the investigators analyzed patients undergoing ablation of AAF between April 2018 and January 2021 that were identified from the ablation database at the West German Heart and Vascular Center, Essen. All patients were followed up in the outpatient clinic as part of the clinical standard routine or contacted by telephone to assess the occurrence of clinical recurrence of any arrhythmia. In case the documentation was not performed at the institution, relevant documents and ECGs were requested and reviewed. This single-center cohort study was conducted at the University Hospital Essen, Germany, in accordance with the Declaration of Helsinki and its amendments and was approved by the institutional review board of the University of Essen (number 21-10341-BO). Written informed consent was obtained from all study participants. The primary study endpoint was to evaluate the outcome of patients with induced AAF in comparison to patients with ongoing AAF when starting the procedure. Furthermore, the investigators analyzed the type of recurrence during follow-up as well as the occurrence and results of repeat ablations at the institution. The investigators also evaluated if the recurrent AAF form was the same or de-novo compared to the AAF during previous procedure.
Considering the lack of data in the literature concerning the success of Er,Cr:YSGG laser in pulpotomy treatment of primary teeth, the present study aimed to compare this laser system with two different chemical hemostatic agents regarding its clinical and radiographic success.
Background: Some people with Amyotrophic Lateral Sclerosis (ALS) have a high level of the virus HERV-K in their blood. Researchers do not think this virus causes ALS. But they don t know why some people with ALS have a high level of it. They want to know if HERV-K can be suppressed by drugs that are used to treat HIV infection. Objectives: To learn how drugs usually taken for HIV infection affect people with Amyotrophic Lateral Sclerosis (ALS). Eligibility: Adults at least 18 years old with ALS and high levels of HERV-K but no HIV. Design: Interested participants can contact the study team and, if eligible, the study team will arrange for a screening blood draw to determine the HERV-K level. Participants with a high HERV-K level will be screened with medical history, physical exam, questionnaires, nerve conduction test, lumbar puncture, and blood and breathing tests. After screening, participants will start taking the 4 study drugs. Participants will have up to 12 study visits over a period of 72 weeks. After starting study drugs, they will have study visits at Weeks 1 and 4 and then every 4 weeks until Week 28. They will be asked how they are feeling and have an exam and blood drawn. At 3 visits, they will have tests of nerve conduction, breathing, and their ALS symptoms. At Week 24, they will stop taking the study drugs and may have a repeat lumbar puncture. After the Week 48 visit, their participation is finished.
The optimized CO-Rebreathing is an efficient method to evaluate the red cell mass and has been used in the vast majority of studies in sport medicine. However, this method has never been evaluated on a large scale in the diagnosis of primitive or secondary polycythemia. The standard procedure to evaluate the red cell mass is based on isotopic measurement using Cr51-labelled red cells, but its lack of availability in many centers highlights the need for a non-invasive and rapid alternative method. The purpose of this study is to evaluate and validate the CO-Rebreathing method in this set of indications.
The overall goals of this study are to examine the relationship between chronic inflammation and threat and reward sensitivity, and to determine the effects of acute inflammation on threat sensitivity, in individuals with and without moderate to severe PTSD symptoms. The investigators will first conduct an observational study to examine the relationship between chronic inflammation and neural and behavioral measures of threat sensitivity. Then, the investigators will conduct a randomized, double-blind, placebo-controlled, between-subjects study to examine the effects of acute inflammation on neural and behavioral measures of threat sensitivity.
Fibromyalgia (FM) is a prevalent and disabling disease, that affects mostly women and its main characteristic is chronic pain. Several studies have shown that hydrotherapy is effective in the improvement of symptoms and quality of life of this population; other studies have shown that Pain Therapeutic Education (PTE) is also effective in this sense. PTE is one cheap, easy to apply intervention, with very positive results in chronic pain situations. However, there is a lack of studies that have shown the effects of this intervention on FM. Hence, this study will aim to verify the effectiveness of the hydrotherapy and PTE on women with FM. Sixty women will be randomly allocated in two groups: hydrotherapy and hydrotherapy + PTE. Before treatment start, the investigators will evaluate pain (visual analogue scale, presence of myofascial trigger points and pressure pain threshold over the scalene, upper trapezius, infraspinatus, piriformis, iliopsoas and soleus, bilaterally), quality of life (Fibromyalgia Impact Questionnaire and medical outcomes study 36-item short-form health survey), depression (Beck Depression Inventory), anxiety (Beck Anxiety Inventory) and sleep quality (Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale). Hydrotherapy treatment will last 12 weeks. Women will be evaluated other 3 times: after 6 and 12 weeks (treatment middle and end) and 12 weeks after treatment completion (follow-up). Women in the hydrotherapy group will receive a folder with explanations on FM. Women in the hydrotherapy + PTE will participate of 4 meetings over 12 treatment weeks, in which themes like pain physiology, pain chronification and exacerbation and pain self-management, as well as information on FM will be approached. Statistical analysis will include qualitative and quantitative variable description. Correlation among variables will also be analyzed. Level of significance will be set at 5%.
This study will investigate the impact of a 12-week powdered meal replacement on inflammatory, metabolic, and hormonal markers of obesity-associated conditions and to correlate this response to compositional shifts within the gut microbiota. Moreover, resting energy expenditure, body composition, appetite sensations and soy metabolomics will be explored. This study will be a randomized, parallel group, clinical trial of a 12-week nutritional intervention. A sample size of n=88 participants will be randomly allocated into one of the following groups: - Control group (CON): Participants will be asked to maintain their usual dietary intake over 12 weeks. Their usual dietary intake is expected to reflect the North American dietary pattern (i.e. ~15% of total energy intake coming from protein, ~50% from carbohydrate and ~35% from fat). - Powdered Meal Replacement group (PMR): Participants will be asked to maintain their usual dietary intake and consume a powdered meal replacement composed of soy protein, honey and yogurt twice daily (in two snacks) over 12 weeks. The addition of the meal replacement to a North American Dietary Pattern (described on the CON group diet) will result in a diet composed of, approximately, 22% of protein, 48% of carbohydrate and 30% of fat of total energy intake. The following variables will be analyzed: - Interleukin (IL)-6. - Gut microbiota diversity and composition, specifically taxa that have been associated with health benefits, obesity, and weight loss. - Systemic inflammatory biomarkers (high-sensitivity C-reactive protein, IL-8, IL-10 and tumor necrosis factor-α); - Metabolic blood markers (glucose, insulin, lipid panel, peptide tyrosine-tyrosine, glucagon-like peptide-1, ghrelin, adiponectin, leptin, free glycerol, free fatty acids, and thyroid stimulating hormone) - Resting energy expenditure; - Body composition; - Appetite sensations (hunger, satiety, fullness, and prospective food consumption); - Soy polyphenols' metabolomics. - Gene expression and genetic polymorphisms. At baseline and after 6 and 12 weeks, individuals will attend our Human Nutrition Research Unit where all assessments will take place. In order to assess participants' adherence and follow-up, dietary intake, body weight and appetite sensations (only for participants assigned to the PMR group) will be assessed weekly during the 12-week intervention period. Additionally, participants will be contacted by phone weekly and reminded to maintain their journal/log.