Primary aldosteronism (PA) is common but rarely recognized cause of hypertension that carries excess cardiovascular and renal risk and has approved targeted treatments. Despite current clinical guidelines that recommend screening in a defined set of high-risk populations, less than 5% of eligible patients are ever screened for PA. This study aims to evaluate the impact of a computer decision support Best Practice Advisory (BPA) alert on rates of screening for PA in guideline-eligible patients, referral to specialist PA care, and treatment with mineralocorticoid receptor antagonists.
The study protocol is a single-center Quality Improvement initiative performed as a cluster-randomized controlled trial designed to evaluate the impact of an EPIC electronic health record Best Practice Advisory (BPA) alert on rates of screening for PA in guideline-eligible patients. 1600 patients meeting inclusion/exclusion criteria for Primary Aldosteronism (PA) screening will comprise the study population, with randomization of alert/no alert occurring at the level of their treating clinician (Attending Physician, Nurse Practitioner, or Physician Assistant) to minimize spillover/contamination effects of the BPA onto other patients treated by the same clinician. Treating clinicians within primary care and relevant specialties including endocrinology, nephrology, and cardiology will be randomized 1:1 to receive or not receive a BPA prompting screening for PA with laboratory testing of plasma aldosterone, plasma renin activity, and a basic metabolic panel, as well as an order for an e-consult to provide guidance on interpretation of results, for eligible patients. Outcomes will be ascertained by electronic health record review at 6 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SCREENING
Masking
SINGLE
Enrollment
12,501
For patients randomly assigned to the BPA Alert Group, an on-screen electronic alert will be issued during the outpatient clinical encounter than notifies the clinician that their patient should be screened for PA. The clinician will be provided with on-screen details of which patient-specific risk factors qualified them for PA screening and with an option to order a plasma renin activity, aldosterone, and basic metabolic panel. If screening labs are ordered, the clinician will also receive an option to order an eConsult for expert guidance on interpretation of the test results. If the clinician does not order the PA screening labs, they will be able to continue with clinical EHR documentation but will need to select a reason they opted not to follow the alert's evidence-based clinical practice recommendation.
Brigham and Women's Hospital
Boston, Massachusetts, United States
Frequency of PA testing orders by provider
The primary outcome is the frequency of aldosterone/renin laboratory testing orders by providers.
Time frame: 6 months
Frequency of PA-related Specialty Referral
Frequency of referral to PA specialists, particularly in endocrinology and cardiology
Time frame: 6 months
Frequency of Empiric Mineralocorticoid Receptor Antagonist (MRA) Prescription
Frequency of prescription of empiric MRA such as spironolactone, eplerenone, or finerenone
Time frame: 6 months
Frequency of new PA-related diagnoses
Frequency of new ICD Diagnostic Code for PA, Secondary Hypertension, or Endocrine Hypertension
Time frame: 6 months
Frequency of E-Consult order by provider
Frequency of provider ordering an E-Consult with a PA-specialist
Time frame: 6 months
Frequency of "Positive" PA results
Frequency of a "Positive" screening test result suggestive of PA among patients who are screened.
Time frame: 6 months
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