GENERAL CONSIDERATIONS	Evidence	Strength
Advice TO DO
12-lead ECG should be recorded during conduction system pacing implantation, ideally using an electrophysiology recording system for simultaneous endocardial and ECG signals.	OPN
Endocavitary electrograms with minimally filtered signals showing current of injury should be displayed.24,73	OPN
May be appropriate TO DO
If an EP recording system is not available, use of a 12-lead ECG with a pacing system analyzer for mapping endocardial signals may be used.7	OBS
Advice NOT TO DO
CSP implantation should not be performed without a minimum display of ECG leads I, II, III, V1 and V5 or V6.	OPN