AIM: To evaluate the implementation of current pharmacotherapy guidelines of heart failure and to identify factors associated with high pharmacotherapy guideline adherence in heart failure patients. METHODS AND RESULTS: We pooled data from seven studies performed in the context of the German Competence Network Heart Failure selecting patients with chronic systolic heart failure and left ventricular ejection fraction (LVEF) <45% (n = 2,682). The quality of pharmacotherapy was evaluated by calculating the guideline adherence indicator (GAI), which considers three (GAI-3) or five (GAI-5) of the recommended heart failure substance classes and accounts for respective contraindications. GAI-3 was categorized as perfect (GAI = 100%: 71% of the cohort), medium (GAI = 50-99%: 22%), and poor adherence (GAI <50%: 7%). In ordinal regression, the following factors were positively associated with perfect adherence: history of revascularization (odds ratio 1.59, 95% confidence interval 1.27-1.98), prior ICD implantation (2.29, 1.76-2.98), and LV ejection fraction <30% (1.45, 1.19-1.76), whereas age (per 10 years; 0.82, 0.77-0.89), NYHA III/IV (0.15, 0.12-0.18), unknown duration of heart failure (0.69, 0.53-0.89), and antidepressant medication (0.61, 0.42-0.88) were negatively associated with perfect adherence. Better GAI-3 at baseline predicted favorable changes of LV ejection fraction and end-diastolic diameter after 1 year. One-year mortality risk was closely related to GAI-3 in both groups of NYHA functional class I/II (excellent vs. poor GAI-3: 7.2 vs. 14.5%, log rank = 0.004) and class III/IV (13.5 vs. 21.5%, log rank = 0.005). CONCLUSIONS: This large pooled analysis showed that a high level of guideline adherence is achievable in the context of clinical studies. Those receiving and tolerating optimal pharmacotherapy experience a better prognosis. Nevertheless, the implementation of heart failure medication needs further improvement in female and elderly patients, especially those in NYHA functional class >II and patients with LVEF ≥30%.
AIM: To evaluate the implementation of current pharmacotherapy guidelines of heart failure and to identify factors associated with high pharmacotherapy guideline adherence in heart failurepatients. METHODS AND RESULTS: We pooled data from seven studies performed in the context of the German Competence Network Heart Failure selecting patients with chronic systolic heart failure and left ventricular ejection fraction (LVEF) <45% (n = 2,682). The quality of pharmacotherapy was evaluated by calculating the guideline adherence indicator (GAI), which considers three (GAI-3) or five (GAI-5) of the recommended heart failure substance classes and accounts for respective contraindications. GAI-3 was categorized as perfect (GAI = 100%: 71% of the cohort), medium (GAI = 50-99%: 22%), and poor adherence (GAI <50%: 7%). In ordinal regression, the following factors were positively associated with perfect adherence: history of revascularization (odds ratio 1.59, 95% confidence interval 1.27-1.98), prior ICD implantation (2.29, 1.76-2.98), and LV ejection fraction <30% (1.45, 1.19-1.76), whereas age (per 10 years; 0.82, 0.77-0.89), NYHA III/IV (0.15, 0.12-0.18), unknown duration of heart failure (0.69, 0.53-0.89), and antidepressant medication (0.61, 0.42-0.88) were negatively associated with perfect adherence. Better GAI-3 at baseline predicted favorable changes of LV ejection fraction and end-diastolic diameter after 1 year. One-year mortality risk was closely related to GAI-3 in both groups of NYHA functional class I/II (excellent vs. poor GAI-3: 7.2 vs. 14.5%, log rank = 0.004) and class III/IV (13.5 vs. 21.5%, log rank = 0.005). CONCLUSIONS: This large pooled analysis showed that a high level of guideline adherence is achievable in the context of clinical studies. Those receiving and tolerating optimal pharmacotherapy experience a better prognosis. Nevertheless, the implementation of heart failure medication needs further improvement in female and elderly patients, especially those in NYHA functional class >II and patients with LVEF ≥30%.
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