Novel Diagnostic Imaging Approach for Patients With Spontaneous Coronary Artery Dissection: The Utility of 18 F-FDG PET Imaging.

ABSTRACT: Spontaneous coronary artery dissection (SCAD) is an underdiagnosed etiology of acute coronary syndrome in women. Accurate diagnosis remains challenging but is imperative for treatment and prevention. We show here the utility of 18 F-FDG PET imaging in SCAD diagnosis. We present 1 representative case of 4 women with suspected SCAD on coronary angiography from the EVACS (Evolocumab in Acute Coronary Syndromes) clinical trial. 18 F-FDG PET imaging showed acute inflammation in the distribution of the suspected dissected coronary artery identified on angiography. Localized myocardial inflammation identified on 18 F-FDG PET imaging can aid in diagnosing SCAD suspected on coronary angiography.

Evaluation and Management of Patients With Stable Angina: Beyond the Ischemia Paradigm: JACC State-of-the-Art Review.

Coronary heart disease is a chronic, systemic disease with a wide range of associated symptoms, clinical outcomes, and health care expenditure. Adverse events from coronary heart disease can be mitigated or avoided with lifestyle and risk factor modifications, and medical therapy. These measures are effective in slowing the progression of atherosclerotic disease and in reducing the risk of thrombosis in the setting of plaque disruptions. With increasing effectiveness of prevention and medical therapy, the role of coronary artery revascularization has decreased and is largely confined to subgroups of patients with unacceptable angina, severe left ventricular systolic dysfunction, or high-risk coronary anatomy. There is a compelling need to allocate resources appropriately to improve prevention. Herein, we review the scientific evidence in support of medical therapy and revascularization for the management of patients with stable coronary heart disease and discuss implications for the evaluation of patients with stable angina and public policy.

A Clinician's Guide to Healthy Eating for Cardiovascular Disease Prevention.

Despite continued advances in health care, the cardiovascular disease (CVD) mortality rate has plateaued in recent years and appears to be trending upward. Poor diet is a leading cause of obesity and type 2 diabetes mellitus, which are leading contributors to CVD morbidity and mortality. Although dietary modification is a cornerstone of CVD prevention, implementation in clinical practice is limited by inadequate formal training in nutrition science. In this report, we review the individual components of a heart-healthy diet, evidence-based dietary recommendations, and the impact of diet on CVD risk factor prevention and management. Furthermore, we examine the unique difficulties of dietary counseling in low-socioeconomic-status environments and provide an evidence-based approach to better serve these populations. We utilized PubMed searches in adults with no date restriction with the following search terms: "carbohydrate," "fat," protein," "DASH," "Mediterranean," "plant-based," "vegetarian," "cardiovascular disease," "obesity," "weight loss," "diabetes," "socioeconomic status," and "race." In this review, we demonstrate that patients should focus on implementing a general diet plan that is high in fruits, whole grains, legumes, and nonstarchy vegetables while low in trans-fats, saturated fats, sodium, red meat, refined carbohydrates, and sugar-sweetened beverages. The Dietary Approaches to Stop Hypertension, Mediterranean, and vegetarian diets have the most evidence for CVD prevention. Clinicians should understand the barriers that patients may face in terms of access to healthy dietary choices. Further research is needed to determine the dietary changes that are most economically, socioculturally, and logistically feasible to reduce these barriers. Improvement in diet is a public health priority that can lead to a significant population-level reduction in CVD morbidity and mortality. It is imperative that clinicians understand current dietary practice guidelines and implement evidence-based dietary counseling in those at high risk for CVD.

The Relationship between Obstructive Sleep Apnea and Atrial Fibrillation: A Complex Interplay.

In recent years, growing evidence suggests an association between obstructive sleep apnea (OSA), a common sleep breathing disorder which is increasing in prevalence as the obesity epidemic surges, and atrial fibrillation (AF), the most common cardiac arrhythmia. AF is a costly public health problem increasing a patient's risk of stroke, heart failure, and all-cause mortality. It remains unclear whether the association is based on mutual risk factors, such as obesity and hypertension, or whether OSA is an independent risk factor and causative in nature. This paper explores the pathophysiology of OSA which may predispose to AF, clinical implications of stroke risk in this cohort who display overlapping disease processes, and targeted treatment strategies such as continuous positive airway pressure and AF ablation.