There are about 15072 clinical studies being (or have been) conducted in Turkey. 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.
At the end of 2019, cases of an unknown respiratory infection were reported in the city of Wuhan in China. It was determined that the cause of this infection was a new virus belonging to the coronavirus family, which was named SARS-CoV-2. After the virus spread worldwide, the World Health Organization (WHO) declared it a pandemic. The clinical picture and disease caused by the virus were named COVID-19 (1). According to the WHO's data on 29.01.2022, the number of cases worldwide has exceeded 365 million, and the number of deaths has exceeded 5 million (2). Fever, cough, fatigue, shortness of breath, myalgia, sore throat, and headache are the main symptoms of COVID-19. Less frequently, it can cause nausea, vomiting, and diarrhea. The disease has a broad spectrum ranging from mild illness to severe illness that can result in death (3). In a study analyzing the data of approximately 72,000 patients in China, it was reported that 81% of the patients had no lung involvement or minimal involvement, 14% had severe involvement, and 5% had respiratory failure, shock, or multiple organ failure (4). Attention is drawn to the long-term complications of COVID-19, such as myocarditis, heart failure, arrhythmia, dyspnea, oxygen dependence, impaired respiratory function tests, increased venous/arterial thromboembolism, decreased fitness, muscle and joint pain, increased anxiety-depression, post-traumatic stress disorder, and renal damage (5). It has been emphasized that patients who have recovered from COVID-19, especially older individuals and those with severe illness, are at risk of sarcopenia (7). It has been suggested that in patients who have recovered from COVID-19, direct viral damage, decreased physical activity level, and malnutrition result in decreased fitness and sarcopenia, which could be associated with increased morbidity in cancer surgeries (8). It is reported that postoperative complications and deaths are higher in active COVID-19 patients than in those who do not have active disease (9). In a multicenter study, it was stated that postoperative pulmonary complications were observed in half of the patients who had COVID-19 during the perioperative period, and this condition was associated with high mortality. Most of these patients are those who need emergency surgical interventions (10). According to studies in the literature, COVID-19 has multi-systemic effects, and some of these effects continue in the long term. It has been shown that the perioperative period with COVID-19 positivity is associated with higher pulmonary complications and mortality. It has been suggested that having had COVID-19 in the past may lead to worse postoperative outcomes. The studies in the literature were mostly conducted on patients who had surgery during the perioperative period while having COVID-19. Most of the patients required emergency surgical interventions. The effect of the patients' functional level on postoperative outcomes has not been examined. Our study focuses on the intraoperative and postoperative period of thoracic surgery patients who underwent surgery in the long term after COVID-19.
Osteoarthritis is the most common type of arthritis, which can affect all joints in the body and includes synovial inflammation, cartilage degeneration, osteophyte formation and bone remodeling in its pathophysiology. Many approaches are used in its treatment, and the effectiveness of exercise in conservative treatment has been proven. Many exercise methods such as strengthening, balance, aquatherapy are applied, but there is no definite consensus on exercise prescribing.Programs that focus on restoring balance and proprioception are called "sensorimotor or neuromuscular trainings". Previous studies have shown that neuromuscular exercises reduce pain, improve function, improve balance, and cause positive biomechanical changes in knee osteoarthritis and meniscus injuries. Progressive Motor Imagery (AMI) is an approach in rehabilitation where the focus is on progressive brain exercise. It is an education that approaches patients with pain, activity limitation and functional loss with a holistic view within the framework of the biopsychosocial model. The aim of this study; to examine the effects of two current treatment programs (AMI, SM training) on symptoms, functionality, balance and proprioception parameters in osteoarthritis rehabilitation.
Researchers are looking for a better way to treat people who have macular edema secondary to retinal vein occlusion (RVO). In people with RVO, a blood vessel that carries blood away from the retina (vein) becomes blocked. The retina is the very back part of the eye. The blocked vein causes fluid and blood to leak into the retina and thereby causes a swelling of the macula (the center of the retina responsible for fine vision). This swelling is called macular edema. When a vein in the retina is blocked, the levels of a protein called vascular endothelial growth factor (VEGF) rises. VEGF helps the growth of new blood vessels. This can lead to macular edema and may cause the vision to become blurry. The study treatment intravitreal (IVT) aflibercept is given as an injection into the eye. It works by blocking VEGF and this can help repair vision problems related to RVO. IVT aflibercept is already available and is prescribed by doctors as the standard of care treatment for macula edema secondary to RVO. Standard of care is a treatment that medical experts consider most appropriate for a disease. Standard of care is given every 4 weeks in people with macula edema secondary to RVO. While repeated injections of aflibercept may prevent worsening of vision, it may place a burden on the patient. However, a higher amount (8 mg) compared to the standard of care (2 mg) of IVT aflibercept is being tested in studies. This higher amount could be given less often. The amount of IVT aflibercept given is measured in milligrams, also known as mg. The main purpose of this study is to learn how well a higher amount of the study treatment aflibercept works in people with macular edema secondary to RVO. To answer this, researchers will measure changes in vision called best corrected visual acuity (BCVA) in the study participants between study start and after 36 weeks of treatment. Changes will then be compared between those participants who received the higher amount of IVT aflibercept and those that received standard of care. To learn how safe the study treatment is in the participants, the researchers will count the number of participants from study start and up to 64 weeks later that have: - adverse events - serious adverse events "Adverse events" are any medical problems that the participants have during a study. Doctors keep track of all adverse events that happen in studies, even if they do not think they might be related to the study treatments. An adverse event is considered "serious" when it leads to death, puts the participants' lives at risk, requires hospitalization, causes disability, causes a baby being born with medical problems or is otherwise medically important. Dependent on the treatment group, the participants will either receive the higher amount of aflibercept or standard of care as an intravitreal injection for up to 60 weeks. The study will consist of a test (screening) phase, a treatment phase and an end of study phase. Each participant will be in the study for up to 64 weeks. One visit to the study site is planned during the screening phase, followed by visits approximately every 4 weeks (16 in total) during treatment and one visit at the end of the study. During the study, the study doctors and their team will: - check patients' eye health using various eye examination techniques - measure patients' eye vision (BCVA) - take blood and urine samples - do physical examinations - check vital signs - examine heart health using electrocardiogram (ECG) - do pregnancy tests in women of childbearing age In addition, participants will be asked to fill a questionnaire on vision-related quality of life.
In this study, the investigators aim to evaluate the relationship between disease severity, quality of life, anxiety and pain level in patients diagnosed with Fibromyalgia Syndrome (FMS) with the parameters according to the American College of Rheumatology (ACR) 2016 diagnostic criteria. According to the 2016 ACR diagnostic criteria, there are 2 separate scales: Widespread Pain Index (WPI) and Symptom Severity (SS) . The relationship between these 2 parameters and the Fibromyalgia Impact Questionnaire, the World Health Organization Short Quality of Life Questionnaire, and the McGill Melzack Pain Questionnaire and Beck Anxiety Questionnaire will be examined.
The goal of this clinical trial is to investigate the effects of a-12-week virtual reality exercise program, applied as tele-exercise, on the exercise capacity of children with cystic fibrosis, whose physical activity level is further restricted during the pandemic. The main questions it aims to answer are: Does aerobic tele-exercise increase functional capacity in cystic fibrosis patients? Will there be a difference in treatment outcomes between the virtual reality group and the online exercise group? Participants will be randomized into two groups; virtual reality group and online group. Physical activity will be provided to the virtual reality group in the form of team activities in a virtual environment, and the other group will be provided online exercises at their home. For this purpose, virtual reality headsets will be provided to patients to give the impression of a natural, immersive environment and realistic experience. Researchers will compare exercise compliance and functional capacity between the virtual reality group and the online group.
The aim of this study is to evaluate the effect of retraction techniques on gingival health. Four different method (212 clamp (Hu-Friedy, USA); Brinker B4 clamp (Coltene Hygenic, USA); dental floss using the simple knot tie method; and using the simple knot tie and 212 clamp together) will evaluated. After rubber dam isolation restorations will be performed, each restoration will take maximum 30 minutes. Changes in periodontal tissues will be evaluate; using plaque index, bleeding on probing, probing depth, keratinized gingiva, attached gingiva, relative gingival margin level, relative attachment level and VAS (visual analogue scale) scoring and patient comfort levels after the procedure at different times (pre-restoration, after restoration, 1 week, 1 month, 3 month). The evaluation time is planned not to exceed 10 minutes, restorations are done by a single specialist in Marmara University Restorative Dentistry Department.
The study seeks to compare the efficacy of conventional direct laryngoscopy using a Macintosh blade with the McGrath videolaryngoscope for rapid sequence endotracheal intubation.
The aim is to ensure that the patients are functionally adequately and painlessly mobilized with the proximal femoral tumor resection prosthesis used, to increase the survival of patients who underwent wide resection, and to determine the complications of the treatment applied and the clinical performance of the Moment Tumor Hip Replacement Products used.
In this study, quadratus lumborum block (QLB), transversus abdominis plane (TAP) block, and local anesthetic infiltration will be performed preoperatively in patients who will undergo unilateral inguinal herniorrhaphy operation under general anesthesia. Quality of recovery (QoR-15) score, postoperative acute and chronic pain levels will be evaluated.
The investigators aimed to determine intracranial pressure changes during spinal and general anesthesia by using optic nerve sheath diameter and near infrared spectrometer in urologic surgery patients in lithotomy position. Also the investigators plan to evaluate to measure intrathoracic pressure effects to intracranial pressure.