Regular narrow QRS tachycardia. What is the mechanism?

A 45‐years‐old lady with no structural heart disease on echocardiogram presented with recurrent episodes of palpitation. There was no baseline preexcitation. Twelve lead surface electrocardiograms (ECG) recorded during one of the episodes are provided. What is the likely mechanism of the tachycardia...

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Bibliographic Details
Published in:Pacing and clinical electrophysiology 2021-04, Vol.44 (4), p.720-722
Main Authors: Mohanan Nair, Krishna Kumar, Prabhu, Mukund Aravind, Balaguru, Sridhar, Namboodiri, Narayanan, Valaparambil, Ajitkumar
Format: Article
Language:English
Subjects:
Cardiac arrhythmia
Coronary artery disease
Diagnosis, Differential
Echocardiography
EKG
Electrocardiography
Female
Heart diseases
Humans
Middle Aged
Tachycardia
Tachycardia - diagnosis
Tachycardia - physiopathology
Ventricle
“AT,” “atrial overdrive pacing,” “narrow QRS tachycardia”
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Summary:A 45‐years‐old lady with no structural heart disease on echocardiogram presented with recurrent episodes of palpitation. There was no baseline preexcitation. Twelve lead surface electrocardiograms (ECG) recorded during one of the episodes are provided. What is the likely mechanism of the tachycardia? 1 FIGURE A)–12 lead surface electrocardiogram during the tachycardia. (B)–12 lead surface electrocardiogram during the tachycardia showing the response to spontaneous ventricular premature beat
ISSN:0147-8389
1540-8159
DOI:10.1111/pace.14207