Key result
Programmed RV stimulation reveals decremental retrograde conduction at the coronary sinus ostium in narrow QRS tachycardia.
Case Report (n=1)
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This case highlights a potential pitfall in the diagnostic criteria for narrow QRS tachycardia during electrophysiological evaluation.
Nagashima et al. (2025) conducted a case report in Narrow QRS tachycardia (n=1). Electrophysiological study and programmed right ventricular stimulation was evaluated on Electrophysiological findings. Programmed right ventricular stimulation in a 13-year-old male with narrow QRS tachycardia revealed decremental retrograde conduction with earliest atrial activation at the coronary sinus ostium.
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