AUTONOMIC DYSFUNCTION

This study tests whether the drug landiolol can safely keep heart rate below 90 beats per minute during major surgery in 114 patients with heart risks. The goal is to see if this approach is feasible and might reduce heart injury after surgery. Participants receive the drug throu…

This study tests whether a noninvasive spinal cord stimulation device can safely improve bladder, bowel, and sexual function in people with spinal cord injury. About 60 veterans and adults in Canada and Ukraine will receive either real or sham stimulation alongside standard rehab…

This study tests whether repetitive transcranial magnetic stimulation (rTMS) can improve heart rate variability and quality of life in people who have had a stroke. 44 participants will receive either real or sham rTMS for 4 weeks. The goal is to see if this brain stimulation can…

This study tests if a nerve block injection in the neck can reduce long-COVID symptoms like fatigue, brain fog, and heart palpitations. About 78 adults with post-COVID condition will get either the real block or a fake injection to see if it helps. The goal is to find a safe, eff…

This study tests whether a non-invasive spinal cord stimulation device can improve autonomic functions like blood pressure, bladder, bowel, and sexual control in people with chronic spinal cord injury. Thirty participants will receive targeted stimulation over several weeks. The …

This study tests a prescription wrist device called NightWare that detects when a veteran with PTSD is having a nightmare and gently disrupts it without waking them. Researchers want to see if better sleep from fewer nightmares can also improve blood vessel and heart health. 125 …

This study looks at how the autonomic nervous system—which controls heart rate and blood pressure—works in people with Down syndrome. Researchers will measure stress responses using virtual reality, cold water, pain patches, caffeine, and exercise in 200 participants. The goal is…

This study looks at how the body controls blood pressure and heart rate in healthy young adults and older adults with high blood pressure. Participants will do tests like standing up and cycling while their heart and blood vessels are monitored. The goal is to better understand t…

This study looks at why some people develop POTS (a condition causing rapid heartbeat and dizziness) after COVID-19. Researchers think a part of the nervous system that normally fights inflammation may not work well in these patients. They will compare 150 adults with and without…

This study is looking at children ages 7 to 18 who have been newly diagnosed with high blood pressure. Researchers want to understand how certain hormones in the body, like angiotensin-(1-7), may contribute to damage in the heart, kidneys, and blood vessels. Over two years, they …

This study is a registry that collects information from 1,000 adults who have conditions like fainting, rapid heartbeat, or low blood pressure and have received a procedure that adjusts nerve signals to the heart. Researchers will track whether symptoms return within a year. The …