For a social scientist of a particular kind, the first thought that springs to mind in association with ‘inconsistency’ is Arrow’s famous impossibility theorem. The association is a natural one because, in the original formulation, inconsistency plays a double role in Arrow’s theorem. At the first level, the requirement that any aggregate ‘community’ ranking of social states be transitive is ak...

From the Aphorisms of Hippocrates to the sports fields of the twenty-first century, by both the lay public and the medical community, the cardiomyopathies have been recognized as causes of sudden cardiac death (SCD). Prevention of SCD in the cardiomyopathies is a 2-fold challenge. First, and central to clinical practice, is the need for reliable prognostication in individuals with established d...

From the Section of Electrophysiology, Division of Cardiovascular Medicine, University of Pennsylvania, Philadelphia, PA (R.D.); Division of Preventive Medicine and Cardiovascular Medicine, Center for Arrhythmia Prevention, Brigham and Women’s Hospital, Boston, MA (C.M.A.). Correspondence to Christine M. Albert, MD, MPH, Division of Preventive Medicine and Cardiovascular Medicine, Center for Ar...

Sudden unexpected death is defined as a natural unexpected fatal event that occurs within 1 hour of the onset of symptoms in an apparently healthy subject or in one whose disease was not so severe as to predict such an abrupt outcome. Approximately 294 851 adults and 2000 children die of sudden unexpected death in the United States each year. Evidence from a Danish population suggests an incide...

To clarify the natural history and management of patients with aberrant origin of a coronary artery from the aorta, we reviewed 18 patients whose right (RCA) or left (LCA) coronary artery arose aberrantly and passed between the aorta and right ventricular infundibulum. Nine patients had aberrant LCA. Three young males died suddenly after exertion, each with proximal focal LCA stenosis. None of ...

To clarify the natural history and management of patients with aberrant origin of a coronary artery from the aorta, we reviewed 18 patients whose right (RCA) or left (LCA) coronary artery arose aberrantly and passed between the aorta and right ventricular infundibulum. Nine patients had aberrant LCA. Three young males died suddenly after exertion, each with proximal focal LCA stenosis. None of ...