High predictive accuracy of Aldosteronoma Resolution Score in Japanese patients with aldosterone-producing adenoma

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Primary aldosteronism caused by aldosterone-producing adenoma is the most common curable cause of secondary hypertension, but despite resection, many patients continue to require antihypertensive medications to control their blood pressure postoperatively. The Aldosteronoma Resolution Score is a preoperative 4-item predictive model for the complete postoperative resolution of hypertension. Our aim was to validate the accuracy of this model in predicting postoperative resolution of hypertension in Japanese patients.


The records of 91 Japanese patients who underwent unilateral adrenalectomy for aldosterone-producing adenoma were surveyed retrospectively. Patients were distributed into 2 groups according to whether blood pressure was normal without antihypertensive medications at 6 months postoperatively. Clinical and biochemical data were evaluated at baseline and after the 6-month follow-up.


At 6 months, blood pressure had normalized in 45% of the patients without antihypertensive medications. Multivariate logistic regression analysis revealed that patients who had complete resolution of hypertension were significantly more likely to have been taking ≤2 antihypertensive medications preoperatively, have a duration of hypertension of <6 years, and be female. The predictive accuracy of the Aldosteronoma Resolution Score was assessed using the area under the curve of receiver operator characteristics analysis. The value of the area under the curve was 0.81.


Our external validation revealed that the Aldosteronoma Resolution Score developed using Western data can identify accurately Japanese individuals with aldosterone-producing adenoma who are likely to have complete resolution of hypertension after adrenalectomy.

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