All Clinical Trials

Ultrasound guidance plays a pivotal role in caudal epidural block in pediatric patients. In comparison to conventional single-plane ultrasound, biplane ultrasound offers the advantage of providing simultaneous transverse and longitudinal imaging. Better visualization under biplane ultrasound is postulated to enhance the efficacy of caudal epidural blocks. This improvement is expected to manifest through higher first puncture success rate, shorter procedure time, and longer time to first postoperative analgesics use. Read Less

The proposed research is relevant to public health because stroke is a leading cause of long-term disability among older adults and communication impairments resulting from stroke have a significant negative impact on quality of life. By seeking to better understand post-stroke aphasia, this project lays the groundwork for development of new interventions, and aligns with NIDCD's priority areas 1 (understanding normal function), 2 (understanding diseases), and 3 (improving diagnosis, treatment, and prevention). Read Less

Adolescents with ASD often have co-occurring mental health symptoms like stress, anxiety, and depression. The investigators are conducting this research study to develop interventions for adolescents with ASD that will improve co-occurring mental health symptoms. Read Less

GMK Revision Knee System is part of the Medacta GMK® (Global Medacta Knee) Total Knee System and is indicated when a higher level of varus/valgus constraint is needed. The external shape of the GMK® Revision femoral component is identical to that of GMK® Primary. The GMK® Revision differs from GMK® Primary by three important design features: i. The addition of a box which allows a stem to be inserted into the femoral canal; ii. The addition of screw lugs so that augments can be placed on the distal and posterior resections, and; iii. The box which also allows various levels of constraint to be added to the polyethylene insert. The tibial component offers the ability to place augments. Indications for Use: The GMK® Total Knee System is designed for cemented use in total knee arthroplasty if there is evidence of sufficient sound bone to seat and support the components. This knee replacement system is indicated in the following cases: * Severely painful and/or disabled joint as a result of arthritis, traumatic arthritis, rheumatoid arthritis or polyarthritis * Avascular necrosis of femoral condyle * Post traumatic loss of joint configuration * Primary implantation failure * Ligamentous Instability Tibial augments are to be attached to the tibial baseplate with both the fixing cylinders and bone cement. In case a semi-constrained liner is used, an extension stem must be implanted both on the tibial and on the femoral component. GMK® Revision femoral components are manufactured of Cobalt Chromium Molybdenum (CoCrMo) according to ISO 5832-4:1996, Implants for Surgery- Metallic materials - Part 4: Cobalt-Chromium-Molybdenum Casting Alloy, the same as the GMK® Primary femoral components. They have an asymmetric patellar groove (left and right) with different radii of curvature in coronal plane as well as non-parallel anterior and posterior cuts (wedge shape). The GMK® Revision posterior stabilized femoral components are designed for use without cruciate ligaments when additional stability is required to prevent subluxation of the femur to the tibia in flexion, same as the GMK® Primary femoral components. In case of severe bone loss, the tibial cones and femoral cones may be used to respectively reinforce the proximal tibia cavity and the distal femoral cavity, providing structural support and load redistribution on the remaining bone. Being an integral part of revision TKA for patients with such bone loss, the clinical outcomes for revision TKAs using the cone components are important for the knowledge regarding performance and survivorship of the Revision TKA as a whole. Read Less

Management of postoperative urinary retention often requires the use of indwelling catheters. In a previous study, the investigators determined that patient removal of catheters at home is non-inferior to standard office removal on postoperative day three or four (POD3-4). The purpose of this study is to determine whether patient removal of catheters at home on postoperative day one (POD1) is noninferior to removal on POD 3-4. Read Less

The purpose of this study is to evaluate the effect of Photobiomodulation (PBM) in postoperative pain after endodontic microsurgery (EMS) in patients from the University of Texas Health Science Center at Houston, School of Dentistry Graduate Endodontic Clinic and to assess the soft tissue healing of the vertical releasing incision (VRI) after PBM Read Less

The goal of this clinical trial is to test how safe and effective it is to treat early form of cancer cells found in the upper skin layer of the face, using a light-sensitive gel used in combination with a light source. The main questions this trial aims to answer are: * to confirm using laboratory testing, how much of the affected facial skin cancer section the treatment was able to remove, and; * seeing how many participants had no remaining affected facial skin cancer sections after treatment. Participants who qualify will be asked to complete 14 visits in total and will receive a total of two treatments, after voluntarily consent has been given. Read Less

The goal of this observational clinical trial is to learn if chest tomosynthesis is a potential alternative to computed tomography for the detection of lung cancer. It will also develop artificial intelligence tools to aid in the diagnosis of lung cancer on chest tomosynthesis images. The main questions it aims to answer are: * What is the accuracy of chest X-ray tomosynthesis in diagnosing lung cancer in a population of individuals undergoing lung cancer screening or evaluation of a suspicious lung nodule? * Can artificial intelligence help us detect lung cancer on chest tomosynthesis images? Researchers will compare chest tomosynthesis images to computed tomography scans for each participant to see how they compare in diagnosing lung cancer. Participants will a chest tomosynthesis scan in addition to their routine clinical computed tomography scan. Read Less

The goal of this clinical trial is to examine how alcohol affects young adults' attention in both laboratory and real-world settings through phone-based cognitive tasks. The main questions this trial is designed to answer are: * How well do the phone-based cognitive tasks capture alcohol's effects on attention? * Does the effect of alcohol on attention contribute to risk-taking? Participants will complete cognitive tasks to assess attention before and after consuming a standard amount of alcohol in the laboratory, and during surveys completed through a phone app for eight weekends. Read Less

A study to assess the effect of multiple doses of venetoclax on the pharmacokinetics of ethinyl estradiol and levonorgestrel in female participants with different hematological malignancies. Upon completion of this study, participants receiving clinical benefit in the opinion of the investigator and without any clinically significant evidence of disease progression with no access to venetoclax (not approved for the treated indication) may continue receiving venetoclax at the discretion of the investigator in a separate extension study. Read Less

This Phase I-II dose-finding trial to determine the optimal dose of intravenous (IV) injection dose of donor-derived cytotoxic T lymphocytes (CTLs) specific for CMV, EBV, BKV and Adenovirus. A maximum of 36 patients will be treated in up to 18 cohorts each of size 2, with the first cohort treated at the lowest dose level 1, all successive doses chosen by the EffTox method, and no untried dose level skipped when escalating. The scientific goal of the trial is to determine an optimal IV-CTL cell dose level among the three doses 1.0x107cells/m2, 2 x107cells/m2 and 5x107cells/m2., hereafter dose levels 1, 2, 3. Dose-finding will be done using the sequentially adaptive EffTox trade-off-based design of Thall et al. Read Less

In this exploratory study we explore the use of Shear Wave Elastography to differentiate between Acute Kidney Injury after vascular surgery and among the healthy population. Read Less