Published in:
Open Access 01-01-2017 | Rhythm Puzzle - Question
Regular, narrow QRS, long RP tachycardia – what is the mechanism?
Published in: Netherlands Heart Journal | Issue 1/2017
Login to get accessExcerpt
We report the case of a 45-year-old male patient who was referred to our department due to palpitations for the last six months, with documented episodes of regular, long RP, narrow QRS tachycardias (Fig. 1). The patient had no history of structural heart disease, his transthoracic echocardiography demonstrated normal systolic and diastolic function and the thyroid function tests were within normal limits. The 24-hour Holter monitoring showed multiple, recurrent, self-terminating episodes of regular, long RP tachycardias (Fig. 2).
Fig. 1
Twelve-lead surface ECG of the index regular, long RP, narrow QRS tachycardia
Fig. 2
Tracings from the Holter recording showing repetitive, self-terminating episodes of long-RP tachycardia. The horizontal arrows show the duration of the recurrent bouts of the tachycardia during rhythm recording
× ![]()
× ![]()
…