All Clinical Trials

This is a prospective interventional trial with healthy volunteers at Methodist Dallas Medical Center. We anticipate data collection to be completed by December 2023. All study participants will be consented regardless of their role as healthy C-spine volunteer or provider volunteer (Appendix C). No compensation will be provided. Provider volunteers will be classified as: * Attending * Resident * Physician assistant, nurse practitioner, or nurse * EMS/Paramedic * Other, as determined by job functions in pre-assessment Read Less

This is a retrospective registry dataset of all adults who presented with cervical and/or skull base fractures or a subdural hematoma at Methodist Dallas Medical Center (MDMC) and had consults to the neurological surgery department beginning in January of 2016, and continuing until a statistically significant number of cases are obtained. Read Less

Retrospective chart review will be conducted on patients at Methodist Dallas Medical Center, meeting the inclusion criteria from January 1, 2019 to December 15, 2020 to determine the transplant free survival and overall survival and other secondary outcome measures. Read Less

This proposal will evaluate a series of peer-mediated interventions (PMIs) for preschool children (3 to 6 years) with ASD and limited or no spoken language, using an innovative Sequential Multiple Assignment Randomized Trial (SMART) design. Available evidence supports the beneficial effects of PMIs for improving social communication in children with ASD. Peer-related social competence is vital to a wide range of child outcomes, such as improved communication and fewer behavioral problems. Unfortunately, approximately 30% of children with ASD remain minimally-verbal in kindergarten, restricting participation in inclusive activities. Recent studies report improved communication after a speech-generating device (SGD) is included in treatment. Effective interventions that can be modified is necessary to ensure optimal communication outcomes when children do not make anticipated progress. A strength of the study is that these interventions can be adopted by community-based, early service providers. All participants will receive an adapted Stay-Play-Talk (SPT) peer-mediated intervention that varies in active ingredients. With SMART designs, it is possible to test and identify alternative combinations of PMI approaches, such as the addition of a SGD. In this study, 132 preschoolers with ASD (and N=264 peers without disabilities) will be initially randomized to SPT and SGD with spoken peer input only (SPT Basic; peers taught to model language) or SPT and SGD with augmented peer input (SPT Plus; peers taught to use verbal language models concurrently with the SGD). Each child's response to treatment after 5 weeks will determine that child's next phase in the SMART design. Children showing a positive response will continue in their originally assigned group; slow responders will be randomly assigned to receive added treatment components to improve communication (either SPT Plus or SPT Advanced). SPT Advanced adds direct instruction strategies (i.e., adult prompts, reinforcers, and teaching trials) to increase child vocalizations in SGD interventions. The use of a SMART design extends our prior work by testing the systematic addition of selected peer-mediated strategies in combination with an SGD that allows for flexible application of interventions based on child response. The investigators have assembled an outstanding team of highly qualified investigators with complementary skills in preschool assessment, language intervention, clinical trials, and statistics. Read Less

The objective is to provide a mechanism to store information regarding the demographic characteristics; pre-, intra-, and post-transplant laboratories; treatment strategies; complications; and outcomes in patients undergoing hepatic transplantation. Read Less

This registry study will investigate the incidence of and outcomes associated with clopidogrel hyper-responsive patients treated at Methodist Dallas Medical Center, beginning in January 2018, who suffered cerebral aneurysms. Read Less

The purpose of this study is to identify improvement in behavioral and social function and changes in the brain following Pivotal Response Treatment (PRT) for Adolescents in highly verbal adolescents with autism spectrum disorder (ASD). Read Less

The purpose of this study is to investigate orthopedic patients undergoing either a total hip replacement (THR) or total knee arthroplasty (TKR) using two dietary supplements, PREPARE and RECOVER, and their recovery times post-surgery. Read Less

Determine the levels of Donor-derived (dd)cell-free DNA(cfDNA )in liver transplant recipients with normal liver function tests (LFTs) indicating stable immunosuppression status (IS). Based on this range use the dd-cfDNA levels to determine over or under IS in liver transplant patients to make changes to their IS medication regimen. Read Less

The purpose of this study is to evaluate the efficacy, safety, and adequacy of Endoscopic Ultrasound (EUS) Portal Pressure Gradient Measurement (PPGM) in patients undergoing EUS-guided liver biopsies. Read Less

The aim of this study is to assess and describe employee characteristics associated with perceived horizontal inter-collegial workplace uncivil behavior within nursing services, and identify any relationships with meaning and joy in work (MJW), and assess job satisfaction. Read Less

The investigator's propose a multicenter prospective observational study to investigate the use of embolization in patients with negative angiogram and to ascertain the optimal level of treatment when the angiogram is positive; non-selective vs. selective embolization. Read Less