ArticleEquity neuroscience2025
Physiologic profiling using plasma renin activity and aldosterone on blood pressure control among Ghanaian stroke survivors: A pilot trial.
Article in Equity neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background and Purpose: Resistant hypertension (RH) is mechanistically driven largely by perturbations in renin-aldosterone, rife among stroke survivors, and portends a poorer prognosis in this population. We sought to evaluate the feasibility of a physiological profiling strategy using plasma renin and aldosterone to tailor medical therapy to control BP among stroke survivors with uncontrolled RH. Methods: This was a pilot randomized clinical trial. We enrolled stroke survivors aged ≥18 years with uncontrolled blood pressure on at least 3 antihypertensive medications at full doses at a tertiary hospital in Ghana. Participants were enrolled between June 16, 2023, and April 19, 2024, and the last participant completed follow-up on October 30, 2024. Participants randomized to the physiologic profiling arm had plasma renin activity and aldosterone levels measured and eplerenone, a mineralocorticoid receptor antagonist, or amiloride was added to their existing BP medications depending on renin-aldosterone profile. Those assigned to the control arm received usual care where physicians added antihypertensive agents as indicated. The primary clinical outcome was proportions with blood pressure < 140/90 mmHg at month 6, by intention-to-treat. Results: Among 60 eligible participants, 30 each were randomized to either the intervention or control arms, 53 % were female, mean (SD) age of 58.4 (10.3) years. The trial was feasible to implement. Primary outcome was achieved in 19 (63.3 %) in the intervention arm vs. 11 (36.7 %) in the usual care arm, p = 0.04. There were 3 major adverse cardiovascular events during follow-up, 1 (3.3 %) non-fatal recurrent stroke in the intervention arm vs 2 (6.7 %) cardiovascular deaths in the usual care arm, p = 0.55. No medication-related adverse events were reported. Conclusions: Among Ghanaian stroke survivors with RH, the addition of eplerenone to background antihypertensive medications based on plasma renin-aldosterone profile demonstrated a signal of efficacy compared with usual care. A larger study with longer follow-up powered to assess hard cardiovascular outcomes among stroke survivors with uncontrolled resistant hypertension is warranted.
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