About this trial
Observational two phase, retrospective and prospective registry study to assess the prevalence of and characterize outcomes of autonomic dysfunction (AD) in patients who undergo bariatric surgery (BS) and to better define the underlying pathophysiology of AD following BS.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Between the age of 18 - 85 years
Can provide consent
Negative urine B-hCG
Continued follow-up with the bariatric surgery team.
Disqualifiers
Unable to provide consent
Pregnant or breastfeeding
BMI < 35
Revision surgery of one of the following BS from above
Trial population
Phase I: who have undergone bariatric surgery in the last 3 years. Phase II: who will undergo bariatric surgery within the next 3 months.
Trial design
Cohort
Other
Treatments tested in this trial
Development of AD/OI after BS
Other interventionOI is a type of AD that results in chronic supine-to-standing hypotension and disabling dizziness, lightheadedness, and even syncope. Whether arising from malabsorption, vagus nerve damage, or splanchnic vasodilation, the pathophysiology of OI in bariatric surgery is not clear and requires more investigation. Treatment of OI usually consists of dietary and lifestyle changes, which may include compression stockings and abdominal binders. Medical options include peripheral vasoconstrictors and mineralocorticoids; some patients may be referred to Cardiology for further testing. Management is difficult and endurance and tilt training, inflatable abdominal bands, and beta-blockers have been proposed. One recent study demonstrated the treatment of refractory OI with Droxidopa. Yet, the success of treatment is individualized and necessitates more novel approaches.
Treatment groups
Trial outcomes
Primary outcomes
To assess the prevalence of and characterize outcome of autonomic dysfunction (AD) in patients who undergo bariatric surgery (BS)
Sponsors and contacts
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Kansas City Heart Rhythm Research Foundation
Lead sponsor
Kansas City Heart Rhythm Institute
Collaborator
Bariatric and Metabolic Specialists, Overland Park, KS
Collaborator