IntroductionHeart failure is associated with recurrent hospitalizations and high mortality. Guideline directed medical treatment (GDMT), including beta blockers (BBs), angiotensin converting enzyme inhibitors (ACE-Is), angiotensin receptor blockers (ARBs) and aldosterone antagonists (AAs) has shown to improve outcomes. Current guidelines recommend the use of these medication classes at maximally tolerated dosages. Despite the evidence, < 25% of patients with heart failure with reduced left ventricular ejection fraction (HFrEF) are on the appropriate medical regimen titrated to the target doses. As such, we sought to assess the utility of a focused GDMT clinic to reduce this gap.MethodsWe conducted a retrospective chart review through existing patient data in a single center teaching hospital of patients referred to a focused GDMT clinic primarily staffed with heart failure trained nurse specialists, physician assistants and cardiologists. Management guidelines were developed with protocols for the initiation and uptitration of all therapeutic agents considered as GDMT.Our primary objective was to determine whether enrollment into a dedicated nursing led guideline directed medical therapy clinic would increase the proportion of patients with heart failure with reduced ejection fraction on appropriate medications as well as medication dosages in patients, the percentage of patients on the following medications and percentage at target doses: Renin-Angiotensin-Aldosterone System Blockers, Evidence Based Beta Blockers, and Aldosterone Antagonists. Our secondary objective was to determine if there was any clinical benefit on objective measures including renal function, hospital admissions, mortality and implantable defibrillator shocks.ResultsBetween October 2015 and March 2017, 63 patients were identified by requisition forms, in which 61 were able to be identified based on legibility of identifying information. Mean duration of follow up was 264.44 ± 162.68 days over 7 ± 3.94 days. Mean ejection fraction was 21.8 ± 7.3%. New onset cardiomyopathies (diagnosed within 30 days) compiled 21% of the patient population while those with demonstrated cardiomyopathies (> 90 days) compiled 48% of the patient population. Patients with NYHA class III heart failure compiled 65% of the patient population.There was a statistically significant increase in the mean number of GDMT at any dose (2.31 ± 0.76 to 2.74 ± 0.66; p < 0.001) and mean number of GDMT at target doses (0.54 ± 0.79 to 1.52 ± 1.1; p < 0.001). Percentage of the population that were on no target doses at initial visit was 62% which was reduced to 18% after intervention.Clinical improvement was reflected in significant improvement in ejection fraction from 21.8 ± 7.8% to 36.2 ± 14.3% (p < 0.001). Increases in sodium and chloride were statistically small but significant. There a significant reduction in heart failure hospitalizations in comparison to a year prior to after the initial encounter in the clinic (p < 0.001).ConclusionThis pilot study showed that a nurse direc...
The frequency of advanced cardiopulmonary imaging has increased the incidence of diagnosis of coronary artery anomalies, but this poses an interesting management dilemma of what to do with them once these anomalies are found. We present the case of a 57-year-old female with a past medical history of postpartum cardiomyopathy, recovered heart failure with reduced ejection fraction (EF), and alcohol use disorder who presented with chest pain, shortness of breath, nausea, vomiting, and palpitations. A CT angiogram was performed to rule out pulmonary embolism. No pulmonary embolism was found; however, the CT scan revealed an anomalous right coronary artery originating from the left coronary cusp, which had a malignant interarterial course (ARCA-LCC-IA) with a right dominant pattern of myocardial circulation. Subsequent nuclear stress testing did not show evidence of ischemia. Echocardiogram revealed a recurrently reduced EF of 40%. Our patient poses a management dilemma since she presented with possible angina and was found to have an anomalous right coronary artery (ARCA) with a malignant course, but subsequently she had a negative exercise stress test with nuclear perfusion imaging. We will review the literature on ARCA-LCC-IA and its clinical manifestations both generally and with its connection to this case as well as its management. We discuss the incidence, diagnosis, and management of ARCA-LCC-IA, with a focus on incidentally found lesions.
A 52-year-old man presented with acute onset of chest pain and was found to have an inferolateral ST-segment elevation myocardial infarction and acute mitral regurgitation due to papillary muscle rupture. This case describes a rare, potentially fatal mechanical complication of acute myocardial infarction. (
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