Address for Correspondence: Mykhaylo Sorokivskyy, Lviv Regional Cardiology Center, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
Fragment of the ECG was recorded on the 12 leads Holter monitor ( Fig. 1).
Speed of the recording – 25 mm/s.
The permanent pacemaker in DDD mode was implanted to patient.
There are 5 morphologies of PQRST seen on this ECG.
Figure 1. Multichannel Holter ECG recording
ECG - electrocardiogram
The correct description of the PQRST complexes (showed by order of numbers below) morphology on this ECG is:A) 1,2 – atria: sinus rhythm, ventricles: paced rhythm;
Lviv Regional Cardiology Center,
Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
Conflict of Interest: None to Declare
Acknowledgement and funding: None to declare