Systolic Heart Failure and Optimization of Medical Therapy: A Quality Improvement Study

Abstract

Introduction: Congestive heart failure (CHF) accounts for significant medical costs and patient mortality. There are ways to mitigate these parameters by providing patient and provider education, optimizing medications, and applying life-saving devices with a referral for a left ventricular assist device (LVAD) when appropriate. We retrospectively observed the charts of 40 patients at our Dayton Veterans Affairs Medical Center (VAMC) for areas of improvement. Methods: Charts were manually reviewed over 2019 for ejection fraction (EF) at the time of diagnosis and ischemic cardiomyopathy (ICM) vs. nonischemic cardiomyopathy (NICM) etiology of heart failure. Information on the titration of beta-blockers (BB), angiotensin-converting enzyme inhibitors (ACE-I), angiotensin receptor blockers (ARBs), and advanced heart failure medications was collected. Readmission rates and heart failure follow-up appointment rates were gathered, and further details were investigated regarding the application of a life vest and automatic implantable cardioverter-defibrillator (AICD) when clinically appropriate. Results: Median EF for patients was 34%, consistent with systolic heart failure. 65% of patients had ICM. For medications, BB was maximally titrated for 85% of patients within a wide data range. ACE-I/ARBs titration was appropriate in 75% of patients. An average of 4.7 dose adjustments for BB and 3.6 dose adjustments for ACE-I/ARBs occurred. Advanced CHF medications were rarely prescribed. Exacerbation rates were 60%, from 1–5 readmissions and an average of 1.07 readmissions. 98% of patients received CHF-specific follow-up after each CHF admission. 60% were eligible for advanced life support devices, 25% were offered life vests, and 62% were offered AICD. No patient was referred to a tertiary center for LVAD. Conclusion: We should work towards 100% medication titration to improve outcomes, especially BB which is known to have morbidity value. We can continue to reduce heart failure readmission rates by providing patient and provider education and continuing to do well at heart failure follow-up appointments. Life vest and AICD should be offered more consistently, and tertiary referral to receive LVAD should remain offered per standard of care.