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Left ventricular hypertrophy (LVH)

There are many different criteria for LVH.

Sokolow + Lyon (Am Heart J, 1949;37:161) S V1+ R V5 or V6 > 35 mm Cornell criteria (Circulation, 1987;3: 565-72) SV3 + R avl > 28 mm in men SV3 + R avl > 20 mm in women Framingham criteria (Circulation,1990; 81:815-820) R avl > 11mm, R V4-6 > 25mm S V1-3 > 25 mm, S V1 or V2 + R V5 or V6 > 35 mm, R I + S III > 25 mm Romhilt + Estes (Am Heart J, 1986:75:752-58) Point score system

Left atrial abnormality (dilatation or hypertrophy)

M shaped P wave in lead II prominent terminal negative component to P wave in lead V1 (shown here)

with permision from the site of Dr. Dean Jenkins
Date
Source EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill
Author Michael Rosengarten BEng, MD.McGill
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