POSTURAL ORTHOSTATIC TACHYCARDIA SYNDROME

This study tests whether intravenous immunoglobulin (IVIG) can reduce symptoms of autonomic dysfunction—such as dizziness, rapid heartbeat, and fatigue—in people with long COVID. Two hundred participants will receive either IVIG or a placebo (saline) for 9 months, plus coordinate…

This study tests whether a mild electrical current applied to the skin of the ear can help people with Postural Orthostatic Tachycardia Syndrome (POTS). POTS causes a rapid heart rate and symptoms like light-headedness and fatigue when standing. The treatment aims to stimulate th…

This study tests whether breathing through a special resistance device can help people with Postural Orthostatic Tachycardia Syndrome (POTS) stand up longer and reduce the rapid heart rate that happens when they stand. Researchers will measure heart rate changes and symptom relie…

This study looks at whether people with Postural Orthostatic Tachycardia Syndrome (POTS) might also have a rare condition called acute hepatic porphyria (AHP), which can cause similar symptoms like rapid heart rate and abdominal pain. Researchers will test 70 adults with POTS usi…

This study at Vanderbilt University Medical Center is looking at whether people with postural tachycardia syndrome (POTS) have higher levels of certain immune proteins that might affect their symptoms. Researchers will measure these proteins in blood samples and test how the hear…

This study compares blood samples from 212 people with and without Postural Orthostatic Tachycardia Syndrome (POTS) to see if those with POTS have higher levels of certain antibodies. Researchers also want to know if these antibodies are more common in people whose POTS started a…

This study looks at why some people, especially young women, feel dizzy, tired, or have a racing heart when they stand up—a condition called orthostatic intolerance. Researchers will measure things like blood volume, sweat response, and heart rate in 260 participants to better un…