There are about 173942 clinical studies being (or have been) conducted in United States. 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.
Background: The Human Motor Control Section does tests for people with movement disorders. In order to be sure when a test is normal or abnormal, normal values must be determined in a large group of healthy volunteers (HVs). Therefore, the researchers want to study the techniques in HVs. They will use the results as the standard of comparison in future clinical studies. Objective: To get enough normal results in movement tests to use in clinical studies. Eligibility: Healthy adults ages 18-68 Design: Participants will be screened with medical history and physical and neurological exams. Participants will have 1 to 3 visits. They may have: Small sticky electrodes attached to the skin on the hands/arms and neck. These will measure muscle activity. Tiny shocks given to a finger. Participants will be asked if they felt 1 or 2 shocks. This will be done to each hand over about 30 minutes total. A questionnaire about anxiety. Acoustic startle reflex test. Small electrodes will be stuck to the eye, hand, and leg. Sensors will be stuck to the palms. Small metal electrodes on the chest and inner arm will measure heart rate. Participants will wear headphones. Once everything is in place, participants will hear a low sound for about 10 minutes. They will hear a short louder sound every 45 60 seconds.
Occipital neuralgia and subsequent headaches are associated with significant morbidity and impact quality of life and ability to work. Treatment is primarily medical and consists of non-steroidal anti-inflammatory medications and medications to treat neuropathic pain. Many patient exhaust medical management options and suffer from persistent symptoms. Surgical management of chronic headaches including occipital neuralgia is emerging as a tool to relieve pain and the burden of morbidity associated with this condition. Dr. Bahman Guyuron has been reporting positive results in the literature for the past 20 years. In a systematic review of 14 papers it has been demonstrated that peripheral nerve surgery for migraines is effective and leads to an improvement of symptoms for 86% of patients. Complication rates were low across all studies included. Additionally, Dr Ivica Ducic has reported success specifically treating occipital neuralgia headaches, with significant improvements in subjective pain outcomes post-operatively. The mechanism behind this is thought to be similar to carpal tunnel syndrome, whereby peripheral nerve compression causes nerve irritation and pain. The ensuing inflammatory response to tissue injury can cause sensitization of nociceptors, resulting in hyperalgesia or allodynia. Surgical release of tight surrounding soft tissues results in nerve decompression and relief of symptoms. Although there are multiple case series and empiric evidence supporting the safety and efficacy of occipital migraine surgery, there are no randomized controlled studies comparing surgical intervention with continued medical management. As part of the present study, the investigators intend to randomize patients who have exhausted maximal medical treatment of post-traumatic occipital headaches to either a surgical management group or a continued medical management group. Surgical intervention will consist of neurolysis, or release, of the occipital nerves.
The purpose of this research study is to examine home safety and fall risk for patients who have undergone hip replacement surgery. The investigators want to know whether evaluating home safety impacts perceived and real risk of falls at home. The study will utilize a fall risk assessment which is a questionnaire that focuses on perceived and real risk of falls at home, as well as a home safety assessment application, the Home for Life App. The participant will be asked about the home environment, including areas of the home such as the entrance, bedroom, and bathroom, and modification recommendations will be made to potentially increase safety.
Lumbar discectomy study, collection and evaluation of incidence of large annular defects.
This research study will test how well a new drug affects bronchiectasis or chronic bronchitis. The new drug, Ivacaftor (KALYDECO), is a drug that has recently been approved by the U.S. Food and Drug Administration (FDA) for patients with a lung disease called Cystic Fibrosis (CF). It has not been approved for use in patients with bronchiectasis or chronic bronchitis.
"Test-Retest Reliability of ocular vestibular evoked myogenic potentials (oVEMPs) across different electrode montages." The purpose of this project is to compare the response characteristics of the ocular vestibular evoked myogenic potential in patients grouped by decade (i.e. 20's-90's) using two different recording montages and two different stimulus types (i.e. air and bone conducted sound). The long-term goal is to increase the sensitivity and specificity of the oVEMP when used clinically to identify vestibular disorders affecting the utricle and superior portion of the vestibular nerve.
Concussion is widely recognized as a major public health concern in the United States and worldwide. Although many concussions resolve completely and spontaneously, almost 1 in 4 patients will go on to experience post-concussion syndrome (PCS). In the United States, PCS diagnoses have increased 100% from 2010-2015. Concurrently, recent advances in EEG evoked response potential analysis have led to a novel technique for assessing brain network activation (BNA) patterns. The purpose of this study is to explore the use of BNA in individuals who are diagnosed with PCS or have the risk of experiencing PCS due to a recent injury.
The objective of the study is to analyze the different implications (such as graft loss and conversion of indeterminate depth burns) of biofilm infections in burn patients. Additionally, it also aims at comparing children's resistance to biofilm infection at wound site than adults'. 300 subjects from 3 different age groups will be enrolled in 3 arms.
This pilot study will look at whether it is possible to give better physical therapy to people with cognitive limitations who have had a hip fracture.
Mechanical ventilation has been known to produce changes in the flow of blood through the major blood vessels in the body. These changes may go undetected, but with continuous arterial blood pressure measurements, changes in the arterial waveform can be visualized. Although we know that these arterial pressure variations occur during mechanical ventilation, little is known about the effects of various modes of mechanical ventilation on these changes. The most common modes of ventilation used in ICU are Volume control, Pressure control and Airway pressure release ventilation. Objective We have designed a prospective randomized pilot study to determine the effects of the commonly used ventilator modes on the arterial pressure.