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Chamber Hypertrophy and Enlargment: Difference between revisions
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==Left atrial enlargement== | |||
;Criteria for left atrial voor left atrial enlargement. Either | ;Criteria for left atrial voor left atrial enlargement. Either | ||
:P wave with a broad (>0,04 sec or 1 small square) and deeply negative (>1 mm) terminal part in V1 | :P wave with a broad (>0,04 sec or 1 small square) and deeply negative (>1 mm) terminal part in V1 | ||
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==Right atrial enlargement== | |||
;Right atrial enlargement is defined as either: | ;Right atrial enlargement is defined as either: | ||
:P >2,5 mm in II / III and / or aVF | :P >2,5 mm in II / III and / or aVF | ||
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==Biatrial enlargement== | |||
;Biatrial enlargement | ;Biatrial enlargement | ||
:Biphasic p wave in V1 of more than 0.04 sec duration. The positive initial part is > 1.5mm and the negative terminal part > 1mm | :Biphasic p wave in V1 of more than 0.04 sec duration. The positive initial part is > 1.5mm and the negative terminal part > 1mm | ||
In biatrial enlargement is the ECG whos signs of both left and right atrial enlargement. In V1 the p wave has large peaks first in positive and later in negative direction. | In biatrial enlargement is the ECG whos signs of both left and right atrial enlargement. In V1 the p wave has large peaks first in positive and later in negative direction. | ||