Background:
Guideline-directed medical therapy (GDMT) prolongs survival in patients with heart failure with reduced ejection fraction (HFrEF). However, different countries implement GDMT differently, and many patients are still undertreated. Therefore, this study aimed to assess GDMT utilization in patients with chronic HFrEF at the adult cardiac clinics of three selected hospitals in Addis Ababa, Ethiopia.
Methods:
An explanatory sequential mixed-methods (quantitative cross-sectional followed by qualitative phenomenological) study design was used to assess GDMT usage in patients with HFrEF at the study settings from September 25 to November 25, 2022. Simple random and purposive sampling techniques were used to select participants for the quantitative and qualitative studies, respectively. Adherence level was defined as good (adherence score = 1), moderate (0.5 < score <1), and poor (score ⩽0.5). Quantitative data were analyzed using Statistical Package for the Social Sciences (SPSS) version 26.0. Logistic regression model was used to determine the association. Statistical significance was declared at p < 0.05. Qualitative data were analyzed with MAXQDA 2020.
Results:
Three hundred forty-one patients were included in the quantitative study. Adherence to GDMT was good in 128 (37.5%) of the patients. Patient parameters, including female gender (adjusted odds ratio (AOR) = 0.55, 95% CI: 0.32–0.93), unable to read and write (AOR = 0.31, 95% CI: 0.11–0.86), primary education (AOR = 0.27, 95% CI: 0.12–0.63), were negatively associated with Physicians’ good adherence. Hypertension was associated with lower odds of physicians’ good adherence (AOR = 0.41, 95% CI: 0.21–0.78). Absence of comorbidities (other than hypertension; AOR = 2.65, 95% CI: 1.36–5.15) were positive predictors. System, patient, and physician-related factors were reported as barriers to intensifying GDMT.
Conclusion:
Nearly one-fourth of eligible patients were on ⩽50% of guidelines-recommended drugs. Female gender, educational level, and comorbidities were the factors associated with adherence to GDMT. System, patient, and physician-related reasons for poor adherence were identified. Multipronged interventions are required to address those adherence barriers.
Plain language summary
Evaluating Physicians’ adherence to prescribe life-saving drugs for patients who have heart failure in public hospitals in Ethiopia
Introduction: Medications with disease modifying ability prolongs survival in patients with heart failure with contractility problem. However, different countries implement usage of these medications differently, and many patients are still not accessing them.
Aim: To find out what percentage of people are on the medicines and why these medicines are not often given to those eligible patients.
Methods: A retrospective review of patients’ charts and patient interview were employed to quantify usage of these lifesaving heart failure medications between 25th September to 25th November 2022. Global guideline adherence score was used to assess adherence to these lifesaving medications prescription. We looked at the information using a statistical tool to see Physicians’ guideline adherence and what factors prevent them from doing so. Physician interview was then conducted to know the reasons why the low prescription to these medications. By using software, we sorted out similar comments raised during physicians’ interviews together to group related reasons together.
Results: 341 patients were included in the quantitative study. Adherence to prescribe these lifesaving drugs was good in 37.5% (128 out of 341) of the patients. Patient parameters including female gender, unable to read and write primary education were negative contributory factors for Physicians’ good adherence. Absence of comorbid illnesses were positive predictors. System, patient, and physician-related factors were reported as barriers to prescribe the medications.
Conclusion: Nearly one-fourth of eligible patients were on <50% of medications recommended by guidelines. Female gender, educational level, and comorbid illnesses were the contributory factors to low prescription of lifesaving medications. System, patient, and physician-related reasons for low prescription were identified. Multipronged interventions are required to address those adherence barriers.