Factors influencing the implementation of pharmaceutical care in outpatient settings: A systematic review applying the Consolidated Framework for Implementation Research.

BACKGROUND: Pharmaceutical care in outpatient settings is a type of health service that has been shown to contribute to decreasing drug-related morbidity and mortality rates. However, every process of implementing a new service brings about changes and transformations in the work routine, thus posing challenges. OBJECTIVES: This systematic review aims to identify barriers to and facilitators for the implementation of pharmaceutical care in outpatient settings by applying the CFIR method, a framework based on the theory of health services, used to analyze and synthesize research data, which can direct strategies for the service to work as planned. METHODS: A systematic review was conducted exploring the barriers to and facilitators for the implementation of pharmaceutical care in outpatient settings. The MEDLINE, EMBASE, CINAHL, COCHRANE, and LILACS databases were consulted. RESULTS: Eight studies were included: five qualitative ones, two mixed-method ones, and a quantitative one. The most frequent CFIR constructs identified were Patient Needs and Resources (n = 30, 10.75%), Knowledge and Beliefs about the Intervention (n = 31, 11.11%), Networks and Communications (n = 34, 12.19%), and Available Resources (n = 56, 20.07%). The most cited barriers were: insufficient human resources, patients' unawareness of the existence of the pharmaceutical care service, and pharmacists' resistance to changes. Facilitators included: the opportune presentation of the service to the healthcare team; the use of electronic devices for specific guidance; and the assessment of patient satisfaction. CONCLUSIONS: This systematic review allowed detecting key guidelines to improve the implementation process, including (1) defining an implementation method and exploring it extensively during the pre-implementation phase, (2) ensuring human and financial resources, (3) determining how the new service will interact with other existing services. More research is needed to understand how these factors can affect the implementation of clinical services.