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Pericarditis ECG

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Developments in 4 stages:

Stage I:

Subepicardial injury: ST segment elevation in upper concavity, early, fleeting, not including the T wave, positive.

Stage II (2nd week):

ST return to the isoelectric line with flattened T waves

Stage III:

Negativity of the T wave, which can persist for several weeks (most constant sign and most durable: 2-6 weeks)

Various stages of pericarditis

– Essential fact: it’s images are diffuse and no images in mirrors.

– Other signs: QRS low volts (microvoltage) if effusion; sub-offset PQ segment (of high diagnostic value);extrasystoles and atrial fibrillation are common; appearance of alternating electrical abundant effusion (changes the direction of the electrical axis of the heart).

– Tamponade: the only sign of value is the electrical wave (variation of the amplitude and the morphology of the QRS, with variation of the electrical axis of the heart).

Pathological ECG
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