PSVT

A 48 year old female came to JIPMER Hospital, Pondicherry, India with chief complaints of palpitation on and off since last one year. There was no history of dyspnoea, chest pain, giddiness, syncope, or any other systemic illness. ECG of the patient done during the episode of palpitation is shown below.
                                           ECG 1(Click on the image to enlarge it)

 ECG is showing narrow complex regular tachycardia at rate around 180 beats/min, normal axis, no ST-T wave seen, no visible P wave seen, normal axis, so the differential is AVNRT


                                    Another ECG of the same patient during tachycardia

Diagnosis is narrow complex regular tachycardia differential being AVNRT.

Approach in a patient with narrow complex regular tachycardia

Thank you.