- Conditions
- Tachycardia, Postural Orthostatic Tachycardia Syndrome
- Interventions
- DAXOR, QSweat, Intrinsic Heart Rate
- Radiation · Procedure · Drug
- Lead sponsor
- Satish R. Raj
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 260 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1996 – 2029
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
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- Conditions
- Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome, Tachycardia, Arrhythmias, Cardiac, Autonomic Nervous System Diseases, Orthostatic Intolerance, Cardiovascular Diseases, Primary Dysautonomias
- Interventions
- phenylephrine, isoproterenol, 25 micro-Ci of radiation, Posture study with blood samples, 24-hour heart rhythm and blood pressure monitoring, Quantitative Axonal Sudomotor Reflex Testing, Autonomic function tests, Rebreathing test, Assessment of splanchnic capacitance, microneurography
- Drug · Radiation · Procedure + 1 more
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 58 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2026
- U.S. locations
- 2
- States / cities
- Oklahoma City, Oklahoma • Nashville, Tennessee