HEART RATE VARIABILITY (HRV)

This study looks at whether adding special breathing exercises to a standard exercise program can improve heart and lung function in people with multiple myeloma. About 26 adults currently on a specific cancer drug will take part. One group will do the breathing exercises at home…

This study tests if a mild, painless nerve stimulation on the ear can help reduce depression in people who have had a heart attack and a stent placed. About 120 adults will use a small device at home for 8 weeks, either active or sham. The goal is to see if this approach improves…

This study looks at whether listening to music can help reduce anxiety in people having outpatient surgery for the first time. Researchers will measure anxiety levels, heart rate, blood pressure, and heart rate variability in 90 adults. Participants will either listen to their ow…

This study follows 60 adults with pulmonary hypertension to see how sleep-related breathing problems and heart rate changes evolve over two years. Participants will have overnight sleep tests at the start, 12 months, and 24 months. The goal is to find better ways to predict and m…

This study looks at whether the natural variation in heartbeats (heart rate variability) can signal when a patient on high-flow oxygen therapy needs a flow adjustment. Researchers will gradually lower the oxygen flow in 20 adults already on this breathing support and monitor thei…