Affiliation:
1. From the Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
Abstract
OBJECTIVE— Despite the high prevalence of hypertension in patients with type 2 diabetes, the prevalence of primary aldosteronism in this population has not been determined.
RESEARCH DESIGN AND METHODS— One hundred subjects with type 2 diabetes and resistant hypertension, defined as blood pressure >140/90 mmHg despite the use of ≥3 antihypertensive agents, were screened for primary aldosteronism. Screening was performed by measuring the plasma aldosterone (PAC)-to-plasma renin activity (PRA) ratio. Subjects with a PAC-to-PRA ratio >30 ng · ml−1 · h−1 underwent confirmatory salt load testing. Diagnostic criteria included 24-h urine aldosterone ≥12 μg during the 3rd day of the oral salt load or a PAC ≥5 ng/dl after the 4-h intravenous saline load.
RESULTS— Thirty-four subjects had a PAC-to-PRA ratio >30 ng · ml−1 · h−1. Fourteen subjects (14% [95% CI 7.2–20.8]) had a confirmed diagnosis of primary aldosteronism. Ninety-three patients were African Americans. There were no differences in age, glycemic control, and number of antihypertensive drugs between subjects with and without primary aldosteronism. Subjects with primary aldosteronism had lower serum potassium (3.7 ± 0.4 vs. 4.0 ± 0.4 mmol/l, P = 0.012), higher PAC (15.6 ± 8 vs. 9.1 ± 6 ng/dl, P = 0.0016), and higher PAC-to-PRA ratio (98 ± 74 vs. 21 ± 30 · ml−1 · h−1, P < 0.001) than patients without primary aldosteronism.
CONCLUSIONS— Primary aldosteronism is common in diabetic patients with resistant hypertension, with a prevalence of 14%. Our results indicate that diabetic subjects with poorly controlled hypertension who are taking ≥3 antihypertensive drugs should be screened for primary aldosteronism.
Publisher
American Diabetes Association
Subject
Advanced and Specialized Nursing,Endocrinology, Diabetes and Metabolism,Internal Medicine
Cited by
96 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献