High complexity chronic heart failure management programmes: Programme characteristics and 12 month patient outcomes

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Chronic heart failure management programmes (CHF-MPs) have been developed to improve, clinical outcomes in response to the high burden of disease from chronic heart failure (CHF). Programmes vary in model, duration, complexity of interventions and incorporation of evidence-based guidelines for programme delivery. Few studies have explored patient outcomes at 12 months from enrolment in a CHF. The aim of the current study was to explore the characteristics and clinical outcomes of patients enrolled in four high complexity CHF-MPs at 12 months after initial enrolment. A secondary aim was to explore the adoption of key evidence-based CHF management strategies in these programmes. After ethics approval, a multisite mixed methods design was implemented incorporating survey and chart audit. Programme characteristics and interventions used in four CHF-MPs were surveyed in Stage 1. Stage 2 involved a chart audit of patients enrolled in the programmes (N = 135) on or after the 1/1/07. Primary endpoints were all-cause hospitalisation and/or mortality at 12 months. Data were analysed using descriptive and inferential statistics. All programmes implemented a high complexity of evidence-based interventions consistent with national guidelines. However, documentation of New York Heart Association functional class was rare; limiting quantifiable evaluation of response to therapy throughout programme enrolment. The majority of patients (73%) had severe systolic heart failure with high co-morbidities reflected in a mean Charlson's total co-morbidity score of 3 (± 2.1). The high rate of baseline evidence-based, pharmacothe- rapy (beta-blocker: 86%, n = 112 and ACE inhibitor: 76%, n = 103) was maintained at 12 months (71% and 84% respectively). At 12 months all cause hospitalisation and/or mortality was 57% (n = 77). The CHF-MPs in this study implemented complex evidence-based interventions resulting in high rates of key medication prescription. However, despite the implementation of several evidence-based interventions, over a period of 12 months, more than half of the patients were rehospitalised or died.