Hypertrophic Cardiomyopathy

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Abstract
(Second of Two Parts)Interrelation between Pathophysiologic Mechanisms and Disease ManifestationsSymptomsThe chief symptoms of hypertrophic cardiomyopathy are exertional angina, dyspnea, fatigue, and impaired consciousness (transient spells of lightheadedness, near-syncope, and syncope). However, a direct, one-to-one correlation between a particular symptom and a single pathophysiologic mechanism does not always exist. For example, in a population of patients with hypertrophic cardiomyopathy, a general relation exists between the severity of symptoms and the magnitude of left ventricular hypertrophy19; however, this correlation is not absolute, and some patients with mild and localized hypertrophy may have severe symptoms,36 whereas other patients with . . .