Clinical Trials

The study is to investigate that the worsening orthostatic tachycardia and symptoms after glucose ingestion in POTS patients are due to a greater increase in splanchnic venous capacitance and excessive blood pooling during an orthostatic challenge.

The goal of this project is to improve risk-stratification for patients who present to the emergency department (ED) with syncope (transient loss of consciousness), in order to better delineate which patients require admission and which can be safely discharged home. Syncope and pre-syncope (the sensation of impending loss of consciousness) are common reasons to present to the ED, representing over 1.3 million visits per year in the United States.

PREVENTABLE is a multi-center, randomized, parallel group, placebo-controlled superiority study. Participants will be randomized 1:1 to atorvastatin 40 mg or placebo. This large study conducted in community-dwelling older adults without cardiovascular disease (CVD) or dementia will demonstrate the benefit of statins for reducing the primary composite of death, dementia, and persistent disability and secondary composites including mild cognitive impairment (MCI) and cardiovascular events.

PREVENTABLE is a large study conducted in community-dwelling older adults without cardiovascular disease (CVD) or dementia. It will demonstrate the benefit of statins for reducing the primary composite of death, dementia, and persistent disability and secondary composites including mild cognitive impairment (MCI) and cardiovascular events.

Have you been diagnosed with orthostatic intolerance? This study aims to find out how the body’s regulation of basic functions, such as heart rate and blood pressure, is altered in people who have orthostatic intolerance. This condition, which has an unknown cause, is characterized by a racing heartbeat, dizziness, lightheadedness, and other symptoms that occur when a person stands up. To participate in this study, you must be between 18 and 80 years old and have orthostatic intolerance. This study is located in Nashville, Tennessee.

Are you a female between 18 and 55 years old who has postural tachycardia syndrome (POTS)? This study is looking at the sympathetic nervous system and its effect on the increased heart rate and dizziness upon standing that people with POTS experience. This study is located in Nashville, Tennessee.