Impact of Primary Aldosteronism in Resistant Hypertension.
Konstantinos Stavropoulos, Konstantinos P Imprialos, Dimitrios Patoulias...
https://pubmed.ncbi.nlm.nih.gov/35445928Actively Recruiting
Led by First Affiliated Hospital of Chengdu Medical College · Updated on 2024-01-29
196
Participants Needed
1
Research Sites
26 weeks
Total Duration
Researchers are investigating the relationship between blood pressure changes and catecholamine levels in the adrenal venous and peripheral venous blood of patients with primary aldosteronism (PA) who have high blood pressure and undergo percutaneous selective adrenal artery embolization (SAAE). This study aims to understand why some patients experience large blood pressure spikes during SAAE while others do not, and to explore the possible mechanisms behind these blood pressure fluctuations caused by the treatment. The study involves collecting blood samples from two groups: one from the adrenal vein and another from the peripheral vein in patients with PA undergoing SAAE. This minimally invasive procedure blocks blood flow to the affected adrenal gland to reduce excess aldosterone production. Blood pressure and hormone levels including norepinephrine, adrenaline, dopamine, renin, aldosterone, sodium, and potassium will be measured immediately and at intervals up to 30 minutes after embolization. The study will capture detailed blood pressure readings before and after the procedure using invasive and 24-hour monitoring. Participants will be monitored closely during the procedure with multiple blood and blood pressure measurements taken at specific times. Researchers will analyze changes in blood pressure and hormone levels to better understand the physiological effects of SAAE. The study is observational, following patients who meet strict diagnostic and blood pressure criteria for PA. Participants will provide informed consent and be observed until the study concludes at the end of 2026. The findings aim to improve knowledge about blood pressure control during this minimally invasive treatment for PA.
CONDITIONS
Comparison of Catecholamine Concentrations in Venous Blood During Selective Adrenal Artery Embolization
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Procedure day with monitoring up to 30 minutes after embolization
Participants undergo percutaneous selective adrenal artery embolization to treat primary aldosteronism. Blood samples from adrenal and peripheral veins and blood pressure measurements are taken during and immediately after the procedure to study hormone levels and blood pressure changes.
1 procedure visit with multiple blood pressure and blood sampling assessments immediately, and at 5, 15, and 30 minutes post-procedure
Duration - 2 days around the procedure
Participants have 24-hour dynamic blood pressure monitoring before and after the embolization procedure to observe blood pressure changes related to treatment.
2 visits for 24-hour blood pressure monitoring before and after embolization
Total: 1 location
1
The First Affiliated Hospital of Chengdu Medical College
Chengdu, Sichuan, China, 610500
Actively Recruiting
P
Peijian Wang, PhD
S
Sen Liu, MD
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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