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Clinical Trial Summary

This is a prospective, observational study that will examine endothelial dysfunction in atrial fibrillation before and after treatment with anti-arrhythmic agents and the extent to which baseline endothelial dysfunction improves after treatment.


Clinical Trial Description

This will be a prospective, observational study and roughly 60 patients will be recruited based on strict inclusion/exclusion criteria. Goal population includes adult patients with a diagnosis of paroxysmal or persistent atrial fibrillation seen in the electrophysiology clinic and admitted to the UPMC Presbyterian electrophysiology service for initiation of anti-arrhythmic medications. The primary goal of the study will be to evaluate the degree of endothelial function recovery seen after initiating anti-arrhythmic medical therapy. We will assess genetic markers, arterial stiffness and vasodilation in response to acetylcholine iontophoresis, nitroprusside iontophoresis, local thermal hyperemia and reactive hyperemia. Laser speckle contrast imaging will be employed to evaluate the microvasculature. SphygmoCor (arterial tonometry) will be used to assess macrovasculature. Testing will be performed at baseline prior to the 1st dose of anti- arrhythmic therapy and repeated again 1-3 months later at outpatient follow-up visit. Additionally, follow-up phone calls or office visits will take place at 6 and 12 months after the initial data collection visit to document recurrence rate of atrial fibrillation. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04128878
Study type Observational
Source University of Pittsburgh
Contact
Status Completed
Phase
Start date May 1, 2019
Completion date December 31, 2020

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