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Understanding implementation of HEARTS for hypertension and diabetes in Guatemala: Qualitative and mixed-methods
Taryn M Valley1,2, Chris Santizo-Malafronti3, Irmgardt Alicia Wellmann4
1School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Insights
Implementing the HEARTS program in Guatemala showed high feasibility but revealed challenges in sustainability and supply chains. Refinements are needed for successful national scale-up of hypertension and diabetes care.
Area of Science:
- Public Health
- Primary Care
- Health Systems Strengthening
Background:
- Latin American countries are adopting the HEARTS initiative for hypertension and diabetes management.
- A pilot study was conducted in Guatemala to assess and refine the HEARTS approach for broader implementation.
Purpose of the Study:
- To understand and refine a HEARTS pilot program for successful scale-up within Guatemala's primary care system.
- To identify barriers and facilitators for the integration of the HEARTS initiative into national health strategies.
Main Methods:
- Semi-structured interviews were conducted with 30 patients and health workers across 10 primary care facilities.
- Convergent mixed methods, including inductive-deductive analysis and the Tailored Implementation in Chronic Diseases framework, were employed.
Main Results:
- Health workers reported competing responsibilities, and patients navigated an unreliable system, impacting retention.
- Sustainability concerns and supply chain issues were identified, despite improved medication availability.
- Gaps in education and treatment gains favoring hypertension over diabetes were noted.
Conclusions:
- The HEARTS pilot met quantitative targets but highlighted critical qualitative barriers to scale-up.
- Refinements include simplifying protocols, enhancing diabetes care, targeted training, supply chain reform, and securing Ministry of Health commitment.
Objectives:
Most countries in Latin America have committed to adopting HEARTS, PAHO's recommended approach for managing hypertension and diabetes in national primary care health systems. This study aimed to understand and refine a HEARTS pilot for scale-up in Guatemala.
Methods:
Team members conducted semi-structured interviews with 30 patients and health workers participating in a HEARTS pilot across 10 primary care facilities in Guatemala's Ministry of Health system. Researchers analyzed interviews using a combined inductive-deductive approach alongside the Tailored Implementation in Chronic Diseases framework and used convergent mixed methods to generate meta-inferences.
Results:
Despite high feasibility and acceptability scores, health workers described tensions between HEARTS and competing responsibilities. Patients described rational navigation of an unreliable system, a more fitting explanation for low retention than noncompliance. Both patients and health workers understood HEARTS as another externally funded project with uncertain sustainability. Medication availability improved during the pilot, but district and facility-level incentive structures perpetuated supply unreliability. Greater absolute treatment gains for hypertension than for diabetes likely reflected health worker comfort and preexisting access to blood pressure monitoring supplies. Both patients and health workers identified education gaps. Integration of qualitative and quantitative findings suggested concrete scale-up refinements, including simplifying treatment protocols, strengthening diabetes components, focusing training on nurses, reforming central-level pharmaceutical supply policies, and securing high-level Ministry of Health commitments.
Conclusions:
A HEARTS pilot trial in Guatemala met pre-specified quantitative outcomes, but qualitative and mixed-methods approaches revealed key barriers. These findings will assist in refining HEARTS in Guatemala for planned national scale-up.
Trial Registration:
ClinicalTrials.gov (NCT06080451).
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