56 Clinical Trials for Various Conditions
Sphere-9 VT is a prospective, multi-center, non-randomized, unblinded feasibility study. Adult subjects with recurrent, sustained, monomorphic ventricular tachycardia due to prior myocardial infarction will be enrolled and treated with the Sphere-9 Catheter and Affera Ablation System.
The purpose of the study is to evaluate the performance of ECG classification algorithms and their ability to classify heart rhythms into multiple categories of rhythms and heart rates.
The purpose of this study is to assess the overall clinical performance of a contact lens made with a modified manufacturing process.
This Performance Assessment Study will focus on testing the performance of the VitalSigns Camera under various suboptimal use cases. The software makes it possible to measure the pulse rate (PR) and respiration rate (RR) without the device being in contact with the subject. The software delivers fast and accurate results (in less than one minute). Vital signs camera (VSC) product will be used via a demonstrator app on one of the smartphones during the study sessions (camera of the phone will be used by the VSC product). Devices will be provided by the researchers. The subject will be asked to perform a number of assignments with the software application. The study involves taking a number of measurements of the subject's PR using the VitalSigns Camera software application (which is installed on a smartphone or laptop). In this study only PR is measured and not RR as the latter parameter is not affected by the designed test cases. The total duration of the session will be approximately 1 hour. In total, approximately 30 healthy volunteers will participate in this study.
The purpose of this study is to obtain on-eye performance data to inform contact lens product development.
The purpose of this study is to compare visual acuity between two daily disposable contact lenses.
A novel measure of nociception is the nociception level (NoL) index. The NoL index ranges from 0 to 100 and is based on a combination of nociception-related physiologic variables, which estimates the nociceptive/antinociceptive state. The purpose of this project is to conduct an observational study of the PMD-200 noninvasive monitor (Medasense Biometrics Ltd., Ramat Gan, Israel), As this is an observational study, this monitor will not be used for clinical decision making, and the point of the study is to assess what happens with the NoL index during routine care. After thorough discussion with patients and written informed consent is provided in the pre-operative unit, patients will be transferred to the operating room. Patients will be connected to a vital sign monitor and any other medical equipment needed for the surgical procedure, as required by the standard of practice. The PMD-200 finger probe will be connected to the left hand middle finger (or right). The PMD-200 will be activated after the induction of general anesthesia. A calibration period of 1-2 minutes will be performed. At the conclusion of the surgical procedure, the PMD200 will be disconnected from the patient. All the phases of anesthetic care are performed at the discretion of the anesthesiologist, but the time of administration of analgesics, muscle relaxants and other medications during anesthetic care will be recorded. The investigators will also record the time point of intubation (placement of breathing tube), extubation (removal of breathing tube), skin incision and any other significant surgical stimulation or noxious stimulation during the procedure. The investigators will be comparing NOL values prior to and following noxious stimuli, administration of analgesic agents and during non-noxious periods.
Recorded cutaneous ECG containing arrhythmia events are separately analysed by an expert Electrophysiologist and the ISSD detection algorithm, to allow assessment of the correct detection of tachyarrhythmia events and discrimination of supra-ventricular arrhythmia of the algorithm,m compared to the expert.
This study will evaluate the performance of the Zephyr BioPatch in measuring heart rate, respiration rate, posture, and activity level compared to reference devices in healthy adult subjects during a variety of situations including hospital room movements, talking, and a short bout of exercise.
Performance assessment testing may be a useful tool to evaluate the impact of ranibizumab on day-to-day visual function in patients with Diabetic Macular Edema (DME).
The purpose of this study is to use the MURDOCK Horizon 1.5 infrastructure (Duke Instutional Review Board Pro00011196) to specifically target and enroll 1,000 participants across age groups and other demographic categories in order to develop a diverse cohort with specific physical and cognitive performance data paired with biological samples.
Emphasizing the growing popularity of motion metrics are the majority of available virtual reality simulators and some newer hybrid models that offer motion tracking for performance assessment. A popular hybrid model (PROMIS) allows training with regular laparoscopic instruments in a box-trainer while automatically recording task duration and movement efficiency (pathlength and smoothness) that are immediately offered as feedback to trainees. Despite the increasing availability of simulators that track motion, our knowledge of the impact those metrics have on trainee learning is severely limited. We do not know if it is more important to use speed, accuracy, motion efficiency or a combination thereof for performance assessment and how these metrics impact skill transfer to the OR. Based on sound educational principles we have developed a proficiency-based laparoscopic suturing simulator curriculum. This curriculum focuses on deliberate and distributed practice, provides trainees with augmented feedback and sets expert-derived performance goals based on time and errors. We have previously demonstrated that this curriculum leads to improved operative performance of trainees compared to controls. To measure operative performance and determine transferability, we will use a live porcine Nissen fundoplication model. Instead of placing actual patients at risk, the porcine model is preferable for this purpose as it offers objective metrics (targets are established, distances measured, knots are disrupted for slippage scoring), complete standardization, and allows multiple individuals to be tested on the same day. We hypothesize that proficiency-based simulator training in laparoscopic suturing to expert-derived levels of speed and motion will result in better operative performance compared to participants training to levels of speed or motion alone. The study is powered to detect an at least 10% performance difference between the groups. Specific Aims 1. Compare whether any performance differences between the groups persist long-term 2. Assess whether the groups demonstrate differences in safety in the operating room by comparing the inadvertent injuries in the animal OR between the groups 3. Identify the training duration required by novices to reach proficiency in laparoscopic suturing based on speed, motion efficiency, or a combination of these metrics 4. Identify any baseline participant characteristics that may predict individual metric-specific performance
Crews of future long-duration exploration missions will have to cope with a wide range of stressors that present significant challenges for maintaining optimal performance. Crews will have to operate under conditions of high workload, reduced sleep and circadian dysregulation, limited sensory stimulation, confinement and extended separation from family and friends, and communication delays isolating them from real-time interaction with ground support, which may be particularly critical in the event of emergencies. These factors present significant risks to optimal cognitive/behavioral functioning and performance, across individuals and teams, and such challenges will only increase in criticality as human exploration moves beyond Earth's orbit to targets such as the Moon and Mars. To help mitigate these risks, Massachusetts General Hospital, along with collaborators at the Massachusetts Institute of Technology, will investigate a novel, personalized and scalable, closed-loop platform technology for on-board behavioral health management-one which adapts the local working environment to optimize performance based on biosensor feedback.
The purpose of the IM ABLE(Injuries Managed with Advanced Bracing for Lower Extremities) study is to determine if advanced (ADV) ankle foot orthoses (AFOs) will enable users to achieve greater levels of physical and self-reported function compared with conventional (CONV) AFOs for those ambulating at or above the independent community level of ambulation.
This study assesses the performance status in stage I-III triple negative breast cancer patients who are receiving neoadjuvant chemotherapy. Information collected in this study may help doctors learn if movement and fitness trackers can be used to predict side effects in cancer patients receiving chemotherapy.
For hemiplegic, stroke patients wheelchair transfers is a critical, safety-related area of physical function. This project will develop a personalized training and clinical assessment instrument based on the Video-Based F-PAT (Functional Performance Assessment and Training.) The objectives of the study are: (1) Enhance the pilot F-PAT web site to allow clinicians password-protected access to the digitized video and assessment information; and (2) train an Occupational Therapist collaborator to create the personalized videotapes for patients to take home with them. This study has the dual goal of evaluating the effectiveness of the personalized training videotapes and the effectiveness of the video-based assessment methodology.
Cancer survivorship has dramatically improved within the last four decades and a greater number of Americans are living after cancer diagnosis. An increase in the number of survivors has highlighted the need to investigate the quality of life experienced by these survivors. While Survivorship research has improved our understanding of the challenges faced by some cancer survivors, there is a paucity of research on the functional and cognitive health status of head and neck cancer survivors. The purpose of this study is to evaluate the functional and cognitive changes that occur in head and neck cancer patients as a result of cancer treatment, in an attempt to increase our understanding of the complex interactions between cancer treatment, comorbid health ailments and quality of life.
A retrospective, non-interventional, observational, multi-center, chart review study to be conducted in participants who underwent placement of the XEN 45 Gel Stent as a standalone procedure or in combination with phacoemulsification from 1 January 2014 to 1 October 2015.
This study plans to assess the effectiveness of performance-based functional assessments (PBFAs) and cognitive assessments in diagnosing Alzheimer's disease in Hispanic/Latino populations. The information from this study will be analyzed with data from the Rocky Mountain Alzheimer's Disease Center Bio-AD study (NCT02612376).
Condition: Prostate cancer Intervention: Biopsy and inherited risk assessment
The study evaluates the performance of the EyeArt system for detecting diabetic retinopathy from images captured using retinal cameras and operators.
The study evaluates the performance of the EyeArt system for detecting diabetic retinopathy from images captured using multiple retinal imaging devices and operators.
The purpose of the study is to determine if the ShuntCheck test can correctly identify flow or no flow in a ventriculoperitoneal shunt in patients with asymptomatic normal pressure hydrocephalus.
The purpose of this project is to explore the degree to which performance consistency on neuropsychological measures varies in a sample of Operation Iraqi Freedom (OIF)/Operation Enduring Freedom (OEF) Veterans with a history of mild traumatic brain injury (mTBI) with persistent self-reported symptoms.
To assess visual performance in patients with low levels (0.5-0.75 Diopters) of corneal astigmatism.
This study will evaluate new assessment tools and equipment and new ways of using existing tools and equipment in the NIH Clinical Center s Rehabilitation Medicine Department in order to maximize patients function. The Department assesses and treats NIH patients with chronic pain, problems in walking or getting around, activities of daily living, performing tasks needed for jobs or hobbies, communicating and chewing and swallowing. Children and adults of all ages with disabilities and healthy normal volunteers may be eligible for this study. The following kinds of assessments are evaluated in this study: Assessments of Impairments Impairments are problems such as loss of movement, weakness or loss of sensation. Assessments may include measurements of range of motion, strength, sensation, pain, joint stability or mobility, joint angles, limb and girth, gait, exercise tolerance, stamina, or ultrasound imaging of muscle and swallowing function. Assessments of Function and Performance Functional and performance assessments look at how well subjects perform actions, such as walking or getting around, dressing, or preparing meals. They may include evaluations of activities of daily living, leisure activities, fatigue, vocational activity, school activity, coping skills, and quality of life. The assessments may be done by questionnaires or interviews and by watching subjects perform the activities. Assessments of Treatment Techniques Treatment techniques are assessed by evaluating methods and equipment used to treat patients with impairments or problems with function. They may evaluate, for example, the use of heat, cold, strengthening exercises, fitness exercises, TENS units, splinting and orthotics, or shoe modifications.
DEEPVESSEL FFR is a medical device that is designed to extract three- dimensional coronary tree structures and generate computed tomography-derived fraction flow reserve (FFR) values from coronary CT angiogram images. The primary objective of this multi-center clinical validation study is to validate the clinical performance of DEEPVESSEL FFR in identifying patients with myocardial ischemia due to significant obstructive coronary artery diseases.
Open enrollment study to collect data for the optimization of machine learning models for use in an app for the early detection of mental health and suicidal risk.
This is an open enrollment study to collect data for the optimization of smartphone-based algorithms for the early detection of mental health and suicidal risk in a student population. Approximately 2000 students, ages 8-23, will be recruited by therapists across 30 schools and mental health centers.
Prospective, open label, single center clinical study enrolling 70 subjects to study Performance, Human Factors, and Usability for the Carbon Monoxide Breath Sensor System (COBBS)