Abstract 242: Evaluating the Impact and Barriers to a Collaborative Physician-pharmacist Care Model to Control Hypertension in a Low-income Population

Abstract

Objectives: Physician-pharmacist collaborative practice models have emerged as an effective model for managing hypertension (HTN). We implemented this model in a low-income, hospital-based cardiology clinic and sought to identify programmatic features necessary to control HTN in this vulnerable population. Methods: Patients with persistently elevated blood pressure (>130/80) were referred by their primary cardiologist. Patients were excluded if they were pregnant, had acute kidney injury, or acute cardiovascular complaints including anginal chest pain, decompensated heart failure, or unstable arrhythmia. The initial pharmacist appointment occurred within 2 weeks of referral, with the goal of bi-weekly visits for 6 weeks or until blood pressure was controlled. Patients were prescribed home blood pressure cuffs and given specific instructions for home-based monitoring. Telehealth visits were made available to interested patients. During each encounter, pharmacists assessed response and side effects to medication, adherence, lifestyle behaviors, stressors, and social barriers to blood pressure control. Clinical management and barriers to HTN control were reviewed at standing weekly staff meetings that included cardiologists and pharmacists. Early results: Among 35 people referred, 22 patients attended at least one pharmacist visit. A total of 139 reminder or follow-up calls were made for these 22 patients. Among the first 35 referrals (mean age 58; 57% male; 65% African American or Latinx), 26% have documented substance use disorders, 34% have a mental health comorbidity, 20% were not taking their medications as prescribed on intake, and 17% had side effects from 2 or more prior antihypertensive medications. Medications adjustments were made in 21/43 patient visits (49% of visits). In 8/43 visits more than 1 medication change was made. The most common patient reported barriers to care include transportation (20%) and language barriers (11%). Discussion and Future Direction: Managing HTN in a low-income population requires attention to the social and contextual factors impacting blood pressure control. We plan to: 1) support the uptake of telehealth to address issues of transportation and access; 2) pilot blue-tooth connected blood pressure cuffs to facilitate home monitoring and management; and 3) partner with community health workers to assess best practices for capturing and addressing social determinants of health in the clinical setting.