Hematopoietic Stem Cell Dysfunction in the Elderly After Severe Injury
Trauma InjuryTraumatic injury is a leading cause of morbidity and mortality in young adults, and remains a substantial economic and health care burden. Despite decades of promising preclinical and clinical investigations in trauma, investigators understanding of these entities is still incomplete, and few therapies have shown success. During severe trauma, bone marrow granulocyte stores are rapidly released into the peripheral circulation. This release subsequently induces the expansion and repopulation of empty or evacuated space by hematopoietic stem cells (HSCs). Although the patient experiences an early loss of bone marrow myeloid-derived cells, stem cell expansion is largely skewed towards the repopulation of the myeloid lineage/compartment. The hypothesis is that this 'emergency myelopoiesis' is critical for the survival of the severely traumatized and further, failure of the emergency myelopoietic response is associated with global immunosuppression and susceptibility to secondary infection. Also, identifying the release of myeloid derived suppressor cells (MDSCs) in the circulation of human severe trauma subjects. This process is driven by HSCs in the bone marrow of trauma subjects. Additionally, MDSCs may have a profound effect on the nutritional status of the host. The appearance of these MDSCs after trauma is associated with a loss of muscle tissue in these subjects. This muscle loss and possible increased catabolism have huge effects on long term outcomes for these subjects. It is the investigator's goal to understand the differences that occur in these in HSCs and muscle cells as opposed to non-injured and non-infected controls. This work will lead to a better understanding of the myelopoietic and catabolic response following trauma.
Local Injection for the Treatment of Chronic Wounds and Pain Caused by Chronic Wounds
PainChronic WoundChronic wounds are wounds or ulcers that do not heal properly and are generally classified as venous, arterial, diabetic, traumatic and pressure chronic wounds and is often associated with inflammatory and neuropathic pain. Preliminary clinical studies have confirmed that injection of freshly prepared HA35 promoted the healing of chronic wounds and relieved the pain associated with chronic wounds. This clinical study is a prospective repeated experiments. The purpose of this study was to verify the effectiveness of HA35 injection therapy.
Pulse Glucocorticoid Therapy in Patients With ST-Segment Elevation Myocardial Infarction
ST Elevation Myocardial InfarctionInflammatory Response2 moreThe overall primary objective of the PULSE-MI trial is to test the hypothesis that administration of single-dose glucocorticoid pulse therapy in the pre-hospital setting reduces final infarct size in patients with ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI)
Adjuvant Versus Neo-adjuvant Radiotherapy in Patients With Resectable Soft Tissue Sarcoma in Extremities...
Resectable Soft Tissue SarcomaExtremities1 moreExtremity soft tissue sarcomas (ESTS)s are rare mesenchymal cancers that considered a challenge for orthopaedic surgeons. Soft tissue sarcomas (STS) comprise less than 1% of malignant cancers, commonly occur in the proximal extremities and trunk. Limb-sparing surgery mostly are targeted in most of the patients, so adjuvant or neoadjuvant radiotherapy is usually added. Preoperative radiotherapy (neoadjuvant) or postoperative radiotherapy (adjuvant) offers local control and survival rates, but the local complications are controversial. However, different retrospective studies had shown that preoperative radiotherapy cause higher wound complication rate, while both preoperative and postoperative radiotherapy had the same results regarding local recurrence
Study of the Relay Pro® Thoracic Stent-Graft in Subjects With Traumatic Injury of the Descending...
Other Specified Injury of Thoracic AortaThe purpose of this study is to investigate the safety and effectiveness of the RelayPro Thoracic Stent-Grafts in subjects with traumatic injury of the descending thoracic aorta (DTA)
STIMO: Epidural Electrical Simulation (EES) With Robot-assisted Rehabilitation in Patients With...
Spinal Cord InjurySTIMO is a First-in-Man (FIM) study to confirm the safety and feasibility of a closed-loop Epidural Electrical Stimulation (EES) in combination with overground robot assisted rehabilitation training for patients with chronic incomplete spinal cord injury (SCI). Patients will participate during 8-12 months, during which there will be: Pre-implant evaluations (6-8 weeks) Device implantation and stimulation optimization (6-8 weeks) Overground rehabilitation training with EES (5-6 months). In the period after implantation, participants need to be present for testing and training, 4 days per week at the CHUV University Hospital in Lausanne (lodging can be provided). It is possible to complement the neuro-rehabilitative training at CHUV with training outside the rehabilitation room by making use of the Home-use system. At the end of the protocol, the study aims to make the patients walk better and faster. As this is the first study of its kind, success is not guaranteed. However, the potential benefits outweigh the potential risks. An optional extension of the study up to 3 years is offered. During this period, the patient can continue the training with the Home-use system.
Medical and Resource Facilitation Intervention After Traumatic Brain Injury
Brain InjuriesTraumatic2 moreMayo Clinic's Traumatic Brain Injury (TBI) Model System Center (TBIMSC) will capitalize on longstanding collaborations with the non-profit Minnesota Brain Injury Alliance (MN BIA) and Minnesota Department of Health (MDH) to test a new way of delivering medical and social services. This trial will address chronic unmet needs expressed by individuals with TBI and their families in the U.S. pertaining to the ineffective connection to specialized medical and community resources in the transition from hospital to community-based care, limited access to TBI experts, and lack of primary care provider (PCP) knowledge about the complex needs of individuals with TBI. Target populations for this study are: 1) individuals with TBI eligible for MN BIA provided Resource Facilitation (RF), 2) their families, and 3) their PCPs. This clinical trial will use a theory-driven complex behavioral intervention that integrates the medical-rehabilitation, therapy, and TBI expertise of Mayo's Brain Rehabilitation Clinic (BRC) with MN BIA's highly developed RF program (a free two-year telephone support service offering assistance in navigating life after brain injury). Mayo Clinic's medical-rehabilitation expertise will be integrated with RF services to deliver direct clinical care remotely using telemedicine and other information and communication technology to test whether outcomes over time are better in a group receiving this model of care compared to a group that receives usual care in their communities. Costs between usual care and intervention groups will be compared in collaboration with the MDH. The overarching goal is development of a replicable, sustainable, and cost effective model of telemedicine care that integrates TBIMS Centers and BIAs nationwide and builds TBI expertise and capacity among PCPs.
Prehospital Kcentra for Hemorrhagic Shock
Trauma InjuryThis is a pilot trial being performed to evaluate the feasibility, to include the ability of EMS to identify patients in shock and the ability to package, store, and administer Kcentra in the field.
High Doses of 4-aminopyridine in Clinically Complete Chronic Spinal Cord Injury Patients.
Spinal Cord InjuriesChronic150 patients with clinically complete chronic spinal cord Injury will be included in a randomized, parallel, placebo controlled, multi-centric, phase III trial. Patients will be evaluated before starting the medication, and at the end of the treatment in the locomotor, sensory, grade of independence, sensitivity and control of bladder and anal sphincters, quality of life, and psychogenic erection in males. Patients will be divided randomly into two groups where one will receive placebo and the other one 4-Aminopyridine (4-AP) in a maximum of 30 weeks in increasing doses.
Stem Cells in Spinal Cord Injury
Spinal Cord InjuriesAcute Spinal Cord Injury3 moreThis is a multicenter, randomized, double-blind, placebo-controlled and delayed-start phase II/III clinical study.