Primary aldosteronism screen cost-effective in resistant HTN

Primary aldosteronism screen cost-effective in resistant HTN

(HealthDay)—For patients with resistant hypertension (RH), computed tomography (CT) scanning followed by adrenal venous sampling (AVS) is a cost-effective screen for primary aldosteronism (PA), according to a study published online Nov. 10 in Circulation: Cardiovascular Quality and Outcomes.

Carrie C. Lubitz, M.D., M.P.H., from Massachusetts General Hospital in Boston, and colleagues examined whether the long-term cardiovascular benefit of identifying and treating surgically correctable PA outweighs the increased . A decision-analytic model was used to compare aggregate costs and changes for six diagnostic strategies for PA in a simulated population of at-risk RH patients. A seventh strategy whereby all patients were treated with a mineralocorticoid-receptor antagonist without further testing was also evaluated. Changes in systolic blood pressure were converted into gains in quality-adjusted life-years (QALYs); incremental cost-effectiveness ratios were calculated using QALYs and lifetime costs.

The researchers found that, compared with treating all, the incremental cost-effectiveness ratio for CT followed by AVS was $82,000/QALY. For CT alone and AVS alone, the incremental cost-effectiveness ratios were $200,000/QALY and $492,000/QALY, respectively; other strategies were less effective and more costly.

"Primary hyperaldosteronism is a common disease that is currently, grossly underdiagnosed and treated," the authors write. "Our results suggest that CT followed by AVS is a cost-effective strategy to screen for PA among with RH."

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Citation: Primary aldosteronism screen cost-effective in resistant HTN (2015, November 16) retrieved 28 March 2024 from https://medicalxpress.com/news/2015-11-primary-aldosteronism-screen-cost-effective-resistant.html
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