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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f14_0_14346

©2013 UpToDate ® Print Email Duchenne's muscular dystrophy Classic findings in Duchenne's muscular dystrophy include resting sinus tachycardia, deep infero- lateral Q waves, and a tall R in lead V1 due to the underlying cardiomyopathy which is often associated with posterobasal fibrosis of the left ventricle. Left atrial enlargement, as indicated by the prominent negative P wave in lead V1, and marked right axis deviation are also present. Courtesy of Ary Goldberger, MD.