Clinical trials

In adults and children low or high blood chloride levels are linked to the risk of death. The aim of this observational study is to determine whether there is a relationship between low or high blood chloride levels and the risk of death or long-term lung problems. We will also learn the risk factors and associated conditions of high or low blood chloride levels. We will include infants born before 32 weeks of pregnancy or have a birth weight of less than 1500 grams in the study. The main question it aims to answer is: Is there a relationship between low or high blood chloride levels in the first 4-6 weeks of life and risk of death or long-term lung problems in premature babies? We will examine the medical reports of babies who were followed up in neonatal intensive care unit over the past 5 years.

Carpal tunnel syndrome is one of the most common conditions caused by compression of a nerve at the wrist. It can lead to numbness, tingling, pain, weakness, and difficulty performing daily activities. Although nerve conduction studies are widely used to confirm the diagnosis and assess disease severity, ultrasonography has become an increasingly important, non-invasive diagnostic tool. However, the relationship between ultrasound findings, nerve conduction study results, hand function, and symptom severity has not been fully clarified. The purpose of this study is to investigate the relationship between the clinical severity of carpal tunnel syndrome and ultrasonographic, electrophysiological, and functional parameters. Participants with carpal tunnel syndrome will undergo ultrasonographic measurement of the median nerve, nerve conduction studies, hand grip strength assessment, pressure pain threshold measurement, and completion of the Boston Carpal Tunnel Questionnaire. The investigators hypothesize that greater clinical severity will be associated with larger median nerve cross-sectional area, more severe electrophysiological abnormalities, reduced hand grip strength, lower pressure pain threshold, and poorer functional status. The findings of this study may improve the understanding of the relationship between structural, electrophysiological, and functional changes in carpal tunnel syndrome and contribute to clinical evaluation and patient management.

This prospective observational study aims to evaluate the association between daily screen exposure duration and postoperative emergence delirium in children aged 2 to 11 years undergoing elective lower abdominal surgery. Daily screen time will be assessed using a parent-reported questionnaire administered preoperatively. Postoperative emergence delirium will be evaluated using the Pediatric Anesthesia Emergence Delirium (PAED) scale at 5, 10, 15, and 30 minutes after surgery. The primary outcome is the association between daily screen time and PAED score within the first 30 minutes postoperatively. Secondary outcomes include the associations between PAED score and age at first screen exposure, type of viewed content, parental screen use, passive screen exposure, and the presence of a screen in the child's bedroom. The study is designed to improve understanding of whether screen-related environmental factors are associated with postoperative behavioral recovery in pediatric surgical patients.

Renal transplantation is a major abdominal surgical procedure that may cause moderate to severe postoperative pain. Opioids are commonly used as part of multimodal analgesia; however, opioid-related adverse effects such as sedation, respiratory depression, nausea, vomiting, and constipation may delay recovery and mobilization. The quadroiliac plane block is an ultrasound-guided interfascial plane block performed near the attachment of the quadratus lumborum muscle to the iliac crest. The technique may provide analgesia over a broad lower abdominal area and may reduce postoperative opioid requirements. This prospective, randomized, double-blind, controlled clinical trial will compare an ultrasound-guided unilateral quadroiliac plane block with surgical wound infiltration in adult patients undergoing renal transplantation. Participants will be randomly assigned to receive either a quadroiliac plane block with 40 mL of 0.25% bupivacaine or surgical wound infiltration with 10 mL of 0.25% bupivacaine. All participants will receive standardized multimodal analgesia and intravenous patient-controlled analgesia with tramadol. The primary objective is to compare cumulative tramadol consumption during the first 24 hours after surgery. Postoperative pain scores, dermatomal sensory distribution, motor block, nausea, vomiting, sedation, and quality of recovery will also be evaluated.

Hip fracture surgery is commonly associated with moderate to severe postoperative pain, which may delay mobilization and increase the need for opioid analgesics. The deep iliacus plane block is a recently described ultrasound-guided regional anesthesia technique designed to provide analgesia by allowing local anesthetic spread toward the femoral nerve, lateral femoral cutaneous nerve, and articular branches supplying the hip. This prospective, randomized, double-blind, sham-controlled clinical trial will evaluate the analgesic efficacy of the deep iliacus plane block in adult patients undergoing hip fracture surgery under spinal anesthesia. After surgery, participants will be randomly assigned to receive either an ultrasound-guided deep iliacus plane block with local anesthetic or a sham block with normal saline. All participants will receive standardized multimodal postoperative analgesia, including patient-controlled analgesia. The primary objective is to determine whether the deep iliacus plane block reduces postoperative opioid consumption during the first 24 hours after surgery. Postoperative pain scores, rescue analgesic requirements, sensory distribution, motor block, nausea and vomiting, quality of recovery, patient satisfaction, and block-related complications will also be evaluated.

This study will evaluate whether ultrasound-guided quadro-iliac plane block provides better postoperative pain control than local infiltration analgesia in patients undergoing single-level lumbar microdiscectomy. Adult patients scheduled for elective single-level lumbar microdiscectomy will be randomly assigned to receive either bilateral quadro-iliac plane block plus patient-controlled analgesia or local infiltration analgesia plus patient-controlled analgesia. The main outcome of the study will be total fentanyl consumption during the first 24 hours after surgery. Pain scores, need for rescue analgesia, opioid-related side effects, patient satisfaction, and recovery quality will also be evaluated.

Osteoporosis is a major cause of morbidity and fragility fractures in postmenopausal women. Bone mineral density (BMD) alone may not fully reflect fracture risk and skeletal fragility. Lumican, an extracellular matrix proteoglycan involved in collagen organization and musculoskeletal tissue homeostasis, has emerged as a potential biomarker for bone health. This prospective observational study aims to investigate the relationship between serum lumican levels, bone mineral density, muscle strength, and clinical fragility indicators in postmenopausal women. Approximately 100 participants will undergo routine osteoporosis assessment including DEXA, laboratory testing, FRAX evaluation, and handgrip strength measurement. The study will evaluate whether serum lumican levels can identify a hidden fragility phenotype beyond conventional bone mineral density measurements.

The Functional Muscle-Bone Incongruity Index (FKUI) is a novel approach developed to evaluate the relationship between muscle function and bone health. This prospective observational study aims to investigate the clinical applicability of FKUI, which combines handgrip strength, total hip bone mineral density (BMD), and lumbar-hip BMD discordance. Approximately 200 adult participants undergoing routine DXA assessment will be enrolled. The study will examine whether the combined evaluation of muscle function and bone health parameters provides a more comprehensive assessment of musculoskeletal status than individual measures alone.

This prospective observational study aims to investigate whether central sensitization influences the response to physical therapy in patients with partial supraspinatus tendon tears. Participants will undergo standardized clinical evaluation before treatment and after a 6-week physical therapy program. Pain intensity, shoulder function, disability, and central sensitization-related symptoms will be assessed using validated outcome measures. The study seeks to determine the relationship between baseline central sensitization status and treatment outcomes, thereby identifying factors that may predict rehabilitation success and support individualized treatment strategies for patients with partial supraspinatus tears.

Knee osteoarthritis is one of the most common degenerative joint diseases and is associated with chronic pain, functional impairment, and reduced quality of life. Psychological factors may influence both symptom severity and response to treatment. Alexithymia, characterized by difficulty in identifying and expressing emotions, has been associated with poorer outcomes in chronic pain conditions. The aim of this prospective observational study is to investigate whether the presence of alexithymia affects the clinical response to a standardized physical therapy program in patients with knee osteoarthritis. Participants will undergo a standard physical therapy regimen and will be evaluated before treatment, immediately after treatment, and 6 weeks after treatment completion. Pain, functional status, alexithymia, anxiety, and depression will be assessed using validated clinical scales. The study seeks to determine whether alexithymia is an independent predictor of treatment response in patients with knee osteoarthritis.

Lipedema is a chronic and progressive adipose tissue disorder characterized by symmetrical fat accumulation, pain, tenderness, and easy bruising, predominantly affecting women. Increasing evidence suggests that chronic low-grade inflammation and impaired resolution of inflammation may contribute to its pathophysiology. Maresin-1 is a specialized pro-resolving lipid mediator with potent anti-inflammatory and tissue-protective properties; however, its role in lipedema remains largely unknown. This cross-sectional observational study aims to evaluate serum Maresin-1 levels in women with lipedema and to investigate their associations with pain severity, inflammatory markers, central sensitization, and quality of life. Serum Maresin-1 levels and clinical characteristics will be compared among women with lipedema, obese women without lipedema, and healthy controls to explore the potential value of Maresin-1 as a biomarker in lipedema.

This prospective, randomized, assessor-blinded clinical trial aims to compare the effects of robot-assisted gait training and quadriceps neuromuscular electrical stimulation (NMES) when added to a standard exercise rehabilitation program in patients with Parkinson disease. Participants will be randomly assigned to two parallel groups. Both groups will receive a standard rehabilitation program, while one group will additionally undergo robot-assisted gait training and the other group will receive quadriceps NMES. The interventions will be administered five days per week for six weeks. Clinical outcomes, including balance, functional mobility, gait performance, and disease severity, will be evaluated at baseline, post-treatment, and follow-up (week 14). In addition, ultrasound-based assessments of quadriceps muscle thickness and cross-sectional area will be performed to investigate muscle adaptations. The results of this study are expected to provide comparative evidence regarding the effectiveness of these two rehabilitation approaches and contribute to optimizing rehabilitation strategies in Parkinson disease.

This prospective observational study aims to evaluate the effect of internal jugular vein catheterization on intracranial pressure using optic nerve sheath diameter (ONSD) measurements and carotid artery Doppler ultrasonography in adult patients undergoing surgery under general anesthesia. ONSD will be measured noninvasively using transorbital ultrasonography, and carotid Doppler parameters will be assessed at two time points: after endotracheal intubation and approximately 5 minutes after catheterization. The primary objective is to assess short-term changes in ONSD following catheterization. Secondary objectives include evaluating changes in carotid Doppler measurements and their relationship with ONSD, as well as associations with physiological parameters such as blood pressure, heart rate, oxygen saturation, and end-tidal carbon dioxide.

Urge urinary incontinence is a prevalent condition characterized by involuntary leakage of urine accompanied by a sudden, compelling urge to void. It significantly impairs quality of life and is associated with substantial physical, psychological, and social burden. Noninvasive treatment modalities, including pulsed electromagnetic field (PEMF) therapy and posterior tibial nerve stimulation (PTNS), have gained attention due to their safety and ease of application. This study is designed as a prospective, randomized, assessor-blinded clinical trial conducted in women diagnosed with urge urinary incontinence. Eligible participants will be randomly assigned to one of two intervention groups: PEMF therapy or tibial nerve stimulation. Both interventions will be applied over a predefined treatment period under standardized conditions. Outcome measures will include symptom severity, frequency of incontinence episodes, and quality of life, assessed using validated instruments such as the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), bladder diaries, and quality-of-life scales. Assessments will be performed at baseline and after completion of the treatment period. The primary aim of the study is to compare the efficacy of PEMF therapy and tibial nerve stimulation in reducing urinary symptoms. Secondary objectives include evaluating improvements in quality of life and functional outcomes. The findings of this study are expected to contribute to the optimization of noninvasive treatment strategies for urge urinary incontinence.

Fibromyalgia is a chronic pain syndrome characterized by widespread musculoskeletal pain, fatigue, sleep disturbances, and cognitive symptoms. Central sensitization is considered a key mechanism in the pathophysiology of fibromyalgia; however, the underlying biological markers have not been fully clarified. Brain-derived neurotrophic factor (BDNF) and S100B protein have been suggested to play roles in neuroinflammation and central pain processing. This observational, cross-sectional study aims to evaluate serum S100B and BDNF levels in patients with fibromyalgia and to investigate their relationship with central sensitization and sleep quality. Serum biomarker levels and clinical assessment scales will be compared between patients with fibromyalgia and healthy controls.

Knee osteoarthritis is a common degenerative joint disease characterized by pain, stiffness, and functional limitation, significantly affecting quality of life. In addition to mechanical factors, cartilage degradation and extracellular matrix remodeling play a key role in disease progression. Therefore, identifying reliable biomarkers reflecting disease severity has become an important research focus. Cartilage oligomeric matrix protein (COMP) is a structural component of cartilage associated with cartilage turnover, while matrix metalloproteinase-3 (MMP-3) is a proteolytic enzyme involved in extracellular matrix degradation. Both biomarkers have been suggested to be elevated in osteoarthritis and may reflect disease severity. The aim of this cross-sectional observational study is to evaluate the relationship between serum COMP and MMP-3 levels and clinical and radiological severity in patients with knee osteoarthritis. Pain severity will be assessed using the Visual Analog Scale (VAS), functional status with the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and radiological severity with the Kellgren-Lawrence classification. Functional performance will also be evaluated using the 5 Times Sit-to-Stand Test. Additionally, serum COMP and MMP-3 levels will be compared between patients with knee osteoarthritis and healthy controls. The findings of this study are expected to contribute to a better understanding of the relationship between biochemical markers and clinical severity in osteoarthritis and may provide insight into their potential diagnostic and prognostic value.

This study aims to evaluate the relationship between serum myostatin and irisin levels and bone mineral density and muscle strength in postmenopausal women. Participants will be grouped according to bone mineral density as normal, osteopenic, or osteoporotic. Serum myostatin and irisin levels will be measured, and muscle strength will be assessed using handgrip strength and the five times sit-to-stand test. The associations between biochemical and functional parameters will be analyzed.

This prospective observational study aims to evaluate whether daily screen exposure duration is associated with preoperative anxiety levels in children aged 2-5 years undergoing elective surgery. Screen exposure in early childhood has been associated with emotional and behavioral outcomes, including increased anxiety. However, its potential impact on anxiety in acute stress situations such as surgery has not been previously investigated. Preoperative anxiety in children is associated with difficult anesthetic induction, increased postoperative agitation, prolonged recovery, and behavioral disturbances. In this study, parents will complete a structured questionnaire assessing their child's daily screen exposure duration and related factors. Children will be categorized into three groups according to reported daily screen time: less than 1 hour per day, 1-2 hours per day, and more than 2 hours per day. Preoperative anxiety will be assessed immediately before anesthesia induction using the Modified Yale Preoperative Anxiety Scale (mYPAS), a validated observational tool for measuring anxiety in young children. No additional medical interventions will be performed beyond routine clinical care. The study seeks to determine whether higher screen exposure is associated with increased preoperative anxiety levels and to identify potential risk factors contributing to anxiety in preschool children undergoing surgery.

The goal of this study is to learn how accurately two artificial intelligence (AI) models, Gemini 2.5 Pro and ChatGPT-5.1, can interpret ultrasound videos of the Transversus Abdominis Plane (TAP) block, a regional anesthesia technique used for pain control after surgery. The main questions this study aims to answer are: How accurately can each AI model identify anatomical structures on TAP block ultrasound videos? Can the AI models correctly evaluate the spread of local anesthetic and determine whether the block is successful? How closely do the AI models' answers match the evaluations of expert anesthesiologists? No additional procedures will be performed on patients. TAP blocks will be done as part of routine clinical care, and the ultrasound videos will be recorded and de-identified. Participants will not need to do anything extra for the study. Experienced anesthesiologists will review the videos and provide expert answers. The AI models will be given the same videos and asked the same questions. A second expert, who does not know which answers came from humans or AI, will compare all responses. The results will help researchers understand whether advanced AI systems can safely support clinicians in interpreting ultrasound-guided regional anesthesia procedures and improve education and decision-making in anesthesia practice.

This study compares two different methods of helping patients breathe by placing a tube in their airway (intubation) in an emergency setting. These methods are called Rapid Sequence Intubation (RSI) and Delayed Sequence Intubation (DSI). The study focuses on adult patients who are still breathing on their own but need a breathing tube for medical reasons not related to an injury (non-trauma). The main goal of the research is to compare: * Oxygen levels before and after the procedure. * The patient's vital signs (such as heart rate and blood pressure). * The number of attempts needed to successfully place the tube and the time the procedure takes. * Blood gas results and any complications that occur during or shortly after the procedure. * Early survival (mortality) rates. While there are previous studies on trauma patients or small observational reports, there is currently no large-scale, multicenter randomized controlled trial that includes all non-trauma adult patients. What makes this study unique? Confirmation of Tube Placement: Researchers will use a specific measurement called end-tidal CO2 (etCO2) to confirm the tube is in the right place, a method not used in similar previous studies. Assessing Difficulty: This study will use the Cormack-Lehane classification system to measure how difficult the intubation was for each patient. Standardization: For the first time, breathing machine (ventilator) settings will be standardized for all patients in this type of study. Real-World Practice: By involving all emergency department physicians as practitioners, the study aims to show how these methods work across a wide range of medical teams.

This study aims to compare the effectiveness of Extracorporeal Shockwave Therapy (ESWT) with conventional physical therapy in patients with Greater Trochanteric Pain Syndrome (GTPS). GTPS is a common cause of lateral hip pain, often related to gluteal tendinopathy rather than trochanteric bursitis. Sixty patients will be randomly assigned to two groups: ESWT or conventional physical therapy (TENS, hot pack, ultrasound). Pain (VAS), hip function (Harris Hip Score), lower limb function (LEFS), and global improvement will be evaluated at baseline, week 3, and week 12. The purpose of this study is to determine which treatment provides greater pain relief and functional improvement.

Plantar fasciitis is a degeneration of the plantar aponeurosis and is the most common cause of heel pain (11-15%). Although seen in both sexes, plantar fasciitis is more common in women, usually unilateral and bilateral in 30% of cases . The most widely accepted view regarding the formation of plantar fasciitis is that it is a degenerative process caused by myxoid degeneration, microtears, collagen necrosis, and angiofibroblastic hyperplasia, resulting from repetitive microtrauma to the plantar fascia, particularly at the calcaneal insertion site. It is not inflammatory . The purpose of this study was to compare the effectiveness of prolotherapy, a regenerative treatment, and ESWT in the treatment of plantar fasciitis.

This study is a randomized controlled trial comparing two minimally invasive surgeries-laparoscopic lateral suspension and laparoscopic sacrocolporopexy-for women who develop vaginal cuff prolapse after hysterectomy. Vaginal cuff prolapse occurs when the top of the vagina loses support after the uterus is removed, which can cause discomfort, bulging, or urinary and bowel problems. The goal of this study is to determine which surgical approach is safer, more effective, and improves quality of life for patients. Women enrolled in the trial will be randomly assigned to one of the two surgeries, and outcomes such as prolapse recurrence, complications, recovery time, and patient satisfaction will be carefully monitored. By comparing these two techniques, this study aims to provide clear guidance for surgeons and patients to make informed decisions about the best surgical treatment for post-hysterectomy vaginal cuff prolapse.

The goal of this prospective observational study is to evaluate whether left ventricular function parameters assessed via transthoracic echocardiography (TTE) can predict weaning success from mechanical ventilation in adult intensive care unit (ICU) patients. The main questions it aims to answer are: Can the Left Ventricular Outflow Tract Velocity Time Integral (LVOT VTI) predict successful extubation? What is the prognostic value of other echocardiographic measures such as Mitral Annular Plane Systolic Excursion (MAPSE), E/e' ratio, E/A ratio, Mitral Deceleration Time (MDT), and Myocardial Performance Index (Tei index) in forecasting weaning outcomes? Participants will: Be adults receiving mechanical ventilation and scheduled for weaning Undergo transthoracic echocardiography (TTE) within 2 hours after meeting weaning criteria Have the following parameters measured: LVOT VTI, MAPSE, E/e', E/A, MDT, and Tei index Be monitored for 24 hours post-extubation to determine if they remain off ventilatory support, including reintubation, non-invasive ventilation, or high-flow oxygen therapy This study aims to provide a comprehensive understanding of how systolic, diastolic, and global cardiac functions influence extubation success, potentially improving ICU decision-making and reducing complications, length of stay, and healthcare costs.

The goal of this prospective observational study is to evaluate whether right ventricular (RV) function parameters assessed via transthoracic echocardiography (TTE) can predict weaning success in adult intensive care unit (ICU) patients who are mechanically ventilated. The main questions it aims to answer are: Can the TAPSE (Tricuspid Annular Plane Systolic Excursion) value predict successful extubation? Do other right heart parameters (tricuspid S', RV-FAC, right atrial area, pulmonary valve acceleration time) provide additional prognostic value for weaning outcomes? Participants will: Be adult ICU patients planned for weaning from mechanical ventilation. Undergo transthoracic echocardiography within 2 hours after meeting clinical weaning criteria. Have the following echocardiographic parameters measured: TAPSE, tricuspid S', RV-FAC, right atrial area, and pulmonary valve acceleration time. Be monitored for 24 hours after extubation to assess weaning success (defined as no need for reintubation, non-invasive ventilation, or high-flow oxygen support).