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Chamber Hypertrophy and Enlargment

No change in size, 18:47, 22 January 2010
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;Right atrial enlargement is defined as either:
:P >2,.5 mm in II / III and / or aVF :P >1,.5 mm in V1.
Right atrial enlargement can result from increased pressure in the pulmonary artery, e.g. after pulmonary embolization. A positive part of the biphasic p-wave in lead V1 larger than the negative part indicates right atrial enlargement. The width of the p wave does not change.
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