Cardiac memory T-wave changes after ventricular tachycardia in pregnancy

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A 36-year-old pregnant woman (20 weeks) was admitted to the coronary care unit because of ventricular tachycardia (VT). 12-Lead electrocardiogram showed a monomorphic regular wide QRS tachycardia with a ventricular rate of 220 beats/min and left bundle branch block morphology. Her electrocardiogram after the termination of the tachycardia returned to baseline with the T-wave inversions in V1-V6 and DII, DII, aVF. The marked T-wave inversions demonstrate cardiac memory due to the preceding abnormal ventricular activation caused by VT. Because the T-wave inversion happened after the conversion from VT to sinus rhythm, it may be explained by the cardiac memory phenomenon.

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