Abstract P301: Evaluating the Impact of a Pharmacist-Managed Hypertension Collaborative Care Model in Vascular Neurology Patients in an Inpatient Acute Care Setting

Abstract

Introduction: The utility of pharmacist-managed collaborative practice agreements (CPA) in the management of hypertension is well established in the outpatient setting. There has been little evaluation of the use of CPAs in the inpatient acute care setting, and none described specifically in the vascular neurology population. Treatment of hypertension is a critical intervention for the secondary prevention of acute ischemic stroke. This quality improvement project evaluated the implementation of a CPA for the inpatient acute care management of hypertension in vascular neurology patients at University of Virginia Health. Methods: A CPA was developed between the neurosciences clinical pharmacist group and the inpatient vascular neurology service, legally vetted, and implemented in June 2019. All vascular neurology patient charts in which an electronic CPA referral was placed from June 2019 through June 2020 were reviewed. Patients were excluded if they were discharged within 24 hours of the referral being placed. The primary objective was to describe and evaluate the implementation of a pharmacist-driven hypertension management practice in the inpatient acute care setting. All patient demographic and clinical data were analyzed using descriptive statistics. Secondary safety outcomes included documented hypotensive events (SBP <90) and acute kidney injury (AKI, increase in SCr by 0.3 mg/dl within 48 hours). Results: During the study period, 26 referrals were placed, and 19 patients were included for review. On average, patients were on 2 anti-hypertensive medications prior to admission. From the time of referral to discharge (mean 6 days), systolic blood pressure (SBP) was reduced on average by 36 mmHg (mean percentage reduction 20%) and diastolic blood pressure (DBP) by 12 mmHg (mean percentage reduction 7%). Ten patients (53%) met the goal of SBP < 140 at discharge. There were 5 hypotensive events and 4 instances of AKI, all of which were mild and recovered prior to discharge. Conclusion: A pharmacist-managed hypertension CPA was successfully implemented in vascular neurology patients in the inpatient acute care setting. The practice demonstrated improved blood pressure control and minimal adverse outcomes.