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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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NCT05157334
This interventional study aims to investigate the effect of deep breathing (DB) and transcutaneous electrical vagus nerve stimulation (tVNS) on heart rate variability (HRV) in healthy participants and patients with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). HRV is used as a surrogate measure of vagal nerve tone. The study consists of three sub-projects: Sub-project 1: To compare the effect of one session of DB and one session of non-invasive auricular tVNS on vagal nerve tone measured by HRV in healthy participants and in patients with RA and SLE. The hypotheses is that DB has a similar effect on HRV as non-invasive electrical tVNS. Sub-project 2: A dose-response study in healthy participants comparing the effect of 5, 15 and 30 minutes of DB on HRV. The hypothesis was that HRV increases as a function of the number of minutes the DB is performed in healthy participants. Sub-project 3: To investigate the effect of the optimal dose found in sub-project 2 in patients with RA and SLE measured by HRV, and to investigate its reproducibility by doing it twice.The hypothesis was that HRV increases after DB in patients with RA and SLE, and the effect is reproducible. In all three sub-projects the washout period will be investigated by measuring HRV three times after the intervention. We hypothesise that the effect of DB and tVNS on HRV decreases over time.
NCT04132986
The potential value of biological and biosynthetic meshes is their ability to integrate and remodel the wall in a contaminated environment in complex surgical situations. However, postoperative morbidity and recurrence rate for biologic prostheses are high. The delay to evaluate biosynthetic prostheses is not enough at present, and the high cost of biological prostheses requires a parsimonious use of this type of material. The interest of absorbable biosynthetic prostheses remains to be demonstrated in terms of postoperative complications and long-term recurrence. Current studies have been done on groups with few subjects and in clean surgery. The primary purpose is to describe the number of complications of the operative site at 12 months, including infectious and noninfectious complications as hematoma and seroma type. The secondary purpose is to describe the number of recurrent ventral hernia at 12 months. The ventral hernia repair is a frequent operation of general surgery. Thanks to this descriptive work considering the new therapeutic offer with absorbable polymers, it would make possible to update the knowledge of the surgeons and to bring new elements of discussion in the surgical decision.