Rechercher des études
Résultats de recherche
Glaucoma is the most common threat to vision rehabilitation in patients with Boston keratoprosthesis type 1 (KPro) implantation. High intraocular pressure (IOP) is the most important risk factor for glaucoma and may lead to irreversible retinal and optic nerve damage. Glaucoma drainage device (GDD) surgery is used to divert aqueous humor (AH) from the anterior chamber to an external reservoir to regulate flow and decrease the IOP. The AH is in direct communication with any corneal damage or surgery undertaken in the anterior chamber and can serve as a source of potential biomarkers to detect early inflammatory or glaucomatous changes. Tears are also one of the most accessible and non-invasive source of biomarkers, especially in Kpro eyes where the central optic allows communication between aqueous humor and the tears at the surface of the eye. The investigators propose to test the hypothesis that distinct inflammatory mediators in the AH and tears can serve as biomarkers for glaucoma development and progression after CT, making them specifically amenable to targeted treatment strategies to minimize vision loss.
Conditions:
Inflammation | Glaucoma | Corneal TransplantationEmplacement:
- Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Quebec, Canada
Sexe:
ALLÂges:
Over 18The radial forearm free flap (RFFF) is widely used in head and neck reconstruction. Its thinness, pliability, pedicle length, and vessel size are particularly suited for oropharyngeal and oral cavity reconstruction. Concerns about aesthetic and functional morbidity at the donor site have given rise to various techniques of closing the donor site, two of which are the split-thickness skin graft (STSG), taken from the thigh, and the hatchet flap, which uses a local flap within the radial forearm. This RCT will determine whether retrospectively reported improvements to aesthetic and functional outcomes for STSG patients are greater compared to hatchet flap patients.
Conditions:
Oral Cancer | Donor Site Complication | Oral Cavity CancerEmplacement:
- Vancouver General Hospital, Vancouver, British Columbia, Canada
Sexe:
ALLÂges:
Over 18The I-COACH study will focus on seniors with mental health conditions who are living in senior community housing. This initiative proposes to assess the feasibility and acceptability of a 12-week integrated program of cognitive remediation (CR) in combination with social and physical activity using an open-label design. The program will be provided over three iterative groups of six participants each, with one Personal Support Worker (PSW). The program will be co-designed at a granular level in an iterative process, drawing upon feedback provided by each participant group, PSW, and community housing staff to improve the user experience. We will build the capacity for community personal support workers (PSWs) to deliver this program independently and with fidelity to the intervention model. Our ultimate goal is to help seniors continue to live as long as possible in their homes within the community.
Conditions:
Aging | Mental DisorderEmplacement:
- Center for Addiction and Mental Health, Toronto, Ontario, Canada
Sexe:
ALLÂges:
Over 50The objectives of this group project is to collect synovial fluid (SF) and paired sera and carry out preclinical studies to evaluate, alone or by combination testings, the potential of novel biomarkers for their prevalence and diagnostic/prognostic values in patients with arthritis, and to determine how therapeutic intervention regulate their levels.
Conditions:
ArthritisEmplacement:
- Centre hospitalier universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
Sexe:
ALLÂges:
3 - 95The objective of this study is to study if low level laser therapy will do more good than harm for patients with severe chronic refractory constipation. It is a proof of concept study without a placebo arm.
Conditions:
Chronic ConstipationEmplacement:
- McMaster University, Hamilton, Ontario, Canada
Sexe:
ALLÂges:
6 - 70To evaluate spectacle independence and patient satisfaction and visual outcomes after bilateral PanOptix implantation in patients with previous multifocal contact lens experience.
Conditions:
CataractEmplacement:
- Vivid Laser Center, Kelowna, British Columbia, Canada
Sexe:
ALLÂges:
AnyThis clinical trial is a Phase 2 study that will evaluate the safety and clinical activity of etavopivat in patients with thalassemia or sickle cell disease and test how well etavopivat works to lower the number of red blood cell transfusions required and increase hemoglobin.
Conditions:
Sickle Cell Disease | ThalassemiaEmplacement:
- The Hospital for Sick Children, Toronto, Ontario, Canada
- Master Centre for Canada, Mississauga, Ontario, Canada
- University Health Network - Toronto General Hospital, Toronto, Ontario, Canada
- CHU Sainte-Justine Mother and Child University Hospital, Montreal, Quebec, Canada
Sexe:
ALLÂges:
12 - 65The goal of this clinical trial is to explore the effects of non-invasive brain stimulation protocols using intermittent theta-burst stimulation (iTBS) on brain plasticity in healthy, right-handed individuals aged 18 to 50 years. Brain plasticity is the brain's ability to change through growth or reorganization. iTBS is a form of transcranial magnetic stimulation (TMS), where magnetic pulses are applied to the scalp using a coil. These pulses pass through the scalp, and can alter brain activity in the area underneath the coil. Based on previous research conducted in animals and humans, researchers believe that iTBS can strengthen the connections between cells in the brain, leading to improved brain plasticity. This trial will compare the effects of the compressed iTBS (iTBS-c) protocol, which is commonly used to treat depression, and the spaced iTBS (iTBS-s) protocol. Researchers want to find out which protocol is better able to produce changes in brain plasticity. Sham iTBS (iTBS-sh) will be used as a control to make the results of the study more reliable. Participants will complete 5 study visits within the span of 3 months, including: * Screening assessments to determine eligibility (Visit 0); * Calibration iTBS session (Visit 1) to assess tolerability of brain stimulation; * Three experimental iTBS sessions (iTBS-s, iTBS-c, and iTBS-sh) in a randomized order (Visits 2-4), each separated by at least 72 hours. During each session, the study team will stimulate the motor cortex and record the muscle activity of your thumb to measure changes in brain plasticity.
Conditions:
Healthy Control SubjectsEmplacement:
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
Sexe:
ALLÂges:
18 - 50This proof-of-principle study will determine if breathing an increased concentration of oxygen above the concentration in normal room air results in changes in the sensory and motor function in people with subacute or chronic, severe spinal cord injury (SCI).
Conditions:
Spinal Cord InjuriesEmplacement:
- University of Alberta, Clinical Sciences Bldg, Edmonton, Alberta, Canada
Sexe:
ALLÂges:
18 - 65This study evaluates the impact of intraoperative intravenous lidocaine administered during laparoscopic colorectal surgery on the intraoperative remifentanil consumption as well as postoperative pain and opioid requirements. It will evaluate immune cell activity for 48hours after surgical stress and general anesthesia with or without intravenous lidocaine.
Conditions:
Intravenous Lidocaine and ImmunityEmplacement:
- Hôpital Maisonneuve-Rosemont, CIUSSS de l'Est de l'Ile de Montréal, Montréal, Quebec, Canada