• Suzanne J Tan, Renata Libianto, Jun Yang, and Jennifer Wong.
• Department of Endocrinology, Monash Health, Melbourne, Victoria, Australia.
• Intern Med J. 2023 May 1; 53 (5): 709716709-716.

BackgroundPrimary aldosteronism (PA) is the most common endocrine cause of hypertension. It is associated with higher cardio-metabolic risk than essential hypertension. Hypertension is common in patients with type 2 diabetes who carry increased cardiovascular risk; however, it is unknown how frequently they are tested for PA.AimTo assess the extent to which the Endocrine Society's 2016 PA screening guidelines have been applied in a tertiary diabetes care setting and evaluate the demographic, clinical and biochemical characteristics of patients who met screening criteria compared with those who did not.MethodsThis is a retrospective cohort study. Data were collected from 272 patients who attended tertiary diabetes clinics and had two or more blood pressure measurements from January to December 2018.ResultsOf 272 patients, 60 (22.1%) had indication(s) for PA screening, but only 14 (23.3%) of 60 were screened using the aldosterone-to-renin ratio (ARR). Five patients who did not meet screening criteria were screened. Only one of 19 patients screened had an abnormal ARR; however, 16 were taking medications known to affect aldosterone and/or renin production.ConclusionsIn a tertiary diabetes outpatient setting, only a minority of patients who fulfilled the Endocrine Society criteria for PA screening were actually screened. Appropriate screening for PA in the diabetic hypertensive population is necessary for the diagnosis and targeted treatment of a highly modifiable cardiovascular risk factor. Further studies are needed to develop feasible strategies to identify patients with PA in this population.© 2022 Royal Australasian College of Physicians.

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