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;Right atrial enlargement is defined as either: | ;Right atrial enlargement is defined as either: | ||
:P >2 | :P >2.5 mm in II / III and / or aVF | ||
:P >1 | :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. | 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. | ||
{{clr}} | {{clr}} |
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