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—In sudden cardiac death, the lesion almost universally present in the coronary arteries is atherosclerosis in varying advanced degrees that may or may not completely occlude the arterial lumen at one or more points, in the opinion of David M. Spain, MD, of the Downstate Medical Center of the State University of New York in Brooklyn. (Nov 2, pp 49-51)
—Recent studies of electrophysiology of the specialized heart tissues have provided information requiring revision of ECG criteria used to establish the presence of heart block—particularly those relating to delay or failure of AV transmission and variability in the site of conduction delay. This was urged by Brian F. Hoffman, MD of Columbia University. (Nov 2, pp 51)
—Although post-mortem examinations of sudden death patients reveal only one small embolism in a peripheral pulmonary artery, the principal mechanisms which may be involved include sudden, marked dilatation
MEDICAL NEWS. JAMA. 1963;186(13):21–34. doi:10.1001/jama.1963.03710130005002
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