Heart failure (HF) greatly increases mortality and lowers quality of life (QOL). HF is the most common indication for readmission in older adults and the most frequent reason for 30-day readmission. Medications and restriction of dietary sodium constitute crucial therapy to lower HF recurrence. However, adherence to medications and dietary recommendations is low in HF patients. Nonadherence is often due to an interaction among the environment, the patient and providers. In the VALOR in Heart Failure Study, we will assess a novel quality improvement program (QIP) to improve HF care using a pretest-posttest design. This interdisciplinary theory-based prospective experimental study will target improving HF treatment using patient-based behavioral and checklist intervention, as well as provider and system-targeted checklists and treatment defaults (posttest or intervention phase); this will be compared to current best practice (CBP) evaluated in the pretest (pretest or pre-intervention) phase. It is hypothesized that the QIP, which intervenes on patient, provider and system levels, will improve QOL and lower HF recurrence compared to CBP.
The primary specific aims are 1) To test the effect of QIP on HF-specific quality of life compared to the CBP group, and 2) To evaluate the impact of QIP group on general quality of life compared to the CBP group.
Secondary specific aims are to:
1\) assess the effect of QIP on medication adherence at 3 months, 2) examine the effect of QIP on diet adherence at 3 months, and 3) evaluate the effect of QIP on satisfaction, and 4) assess the effect of QIP on intervention acceptability. We will also examine the impact of QIP at 3 months on keeping routine outpatient visits, health-care utilization, exercise capacity, weight, perceived stress, depression, cardiovascular events and deaths.
Exploratory aim is to examine the effect of the QIP on 30 day post-discharge HF readmission rates compared to CBP.
We have enrolled 136 veterans being discharged from the hospital with a diagnosis of HF. Patients enrolled in the pretest phase will receive the HF management based on current best practice (CBP). Patients enrolled in the posttest phase receive the comprehensive quality improvement program (QIP) that intervenes on patient, provider and system levels. The QIP will consist of 3 monthly phone calls to promote diet and medication adherence using the transtheoretical model as a behavioral framework and checklists to facilitate patients' self-monitoring of their diet, physical activity, weight and medication taking. Further, providers during the posttest phase will use checklists for inpatient and outpatient care of HF patients. Data, including quality of life (QOL), medication adherence, and dietary adherence, will be collected from patients at baseline (prior to hospital discharge) and 3 months. Hospital readmissions, emergency room visits, and healthcare utilization will be tracked for 6 months. If, as expected, there are no differences in demographic or other confounders (EF, comorbidities, etc), the pretest and posttest groups will be compared by the Fisher's Exact test for discrete outcomes (30-day readmissions or ER visits). We will use the Student's ttest (two-tailed) for normally distributed outcomes and the Wilcoxon rank-sum test for categorical variables and continuous variables not normally distributed.
This study will inform and enhance quality improvement efforts in heart failure care in VA New York Harbor and elsewhere. It will also provide data for a rigorous effectiveness trial to test this promising intervention that could reduce HF recurrence and improve QOL in HF. If this promising theory-driven approach can work in a clinical setting where improvements in HF care are so urgent, it will be an important scientific contribution.
