In acute pulmonary embolism, the ECG finding may include all except
The most frequently cited abnormality, in addition to sinus tachycardia, is the S1Q3T3 sign: an S wave in lead I, a Q wave in lead III, and an inveed T wave in lead III. This finding is relatively specific but insensitive. RV strain and ischemia cause the most common abnormality, T-wave inversion in leads V1 to V4.Ref: Harrison's 19e pg: 1633
S1Q3T3 pattern
P. pulmonale
Sinus tachycardia
T-wave inversion in leads V1 to V4
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