Table 2: Pros and Cons of Mini- or Micro-electrode and Multi-electrode Catheters.

Mini- and Micro-electrodes			Multi-electrodes
	Pros	Cons	Pros	Cons
Near field Field of view	‘Real’ near field Small field of view	Noise and artefacts Initial oedema during radiofrequency	Near field Larger field of view	Far field lava mapped?
LAVA endpoint	More sensitive new LAVA endpoint	Confirmation tool needed?	More LAVA, more channels
Mapping resolution	Improved temporal and spatial resolution	Low mapping density: only in area of interest	High-density mapping	Arrhythmogenicity
Contact	Local impedance/contact information	Catheter orientation dependent	Tissue proximity index*	Wavefront dependent No contact info
Other	Lesion formation evaluation Lower pacing threshold		Better entrainment Lower pacing threshold VT activation mapping
Cost-efficiency	Embedded in ablation catheter			Extra catheter needed

*Available on CARTO (Biosense Webster). LAVA = local abnormal voltage activity; VT = ventricular tachycardia.