Table 3.

Surveillance strategy with low-quality AF-screening

Study	Size	AF-screening	Device (n)	AF < 1 m	AF ≥ 1 m
Furlan et al. (2012) [3]	909	ECG 0, 1, 6, 12, 24 m	Starflex (447)	14 (3.1%)	9 (2.0%)
Heinisch et al. (2012) [31]	407	ECG 1, 6 m, yearly	Helex (404)	n n	9 (2.2%)
Kefer et al. (2012) [30]	287 (PFO 175)	ECG 1, 6, 12 m, yearly	Cardia (118), Amplatzer PFO (101), CardioSEAL (24), Occlutech (15), Helex (10)	0	1 (0.6%)
Stanczak et al. (2012) [32]	264	ECG 1, 3, 6, 12 m, yearly	Premere (263)	6 (2.3%)	2 (0.8%)
Meier et al. (2013) [4]	414	ECG 0, 6 m, annually	Amplatzer PFO (204)	1 (0.5%)	5 (2.5%)
Scacciatella et al. (2016) [33]	458	ECG 1, 6, 12 m, yearly	Amplatzer PFO, Amplatzer Cribiform	5 (1.1%)	11 (2.4%)
Mas et al. (2017) [22]	663	ECG every 6 m	Amplatzer PFO (121), Cardia (31), Premere (22), CardioSEAL (21), Amplatzer cribiform (15), Occlutech (15), Atriasept II (3), Amplatzer ASD (2), Occlutech Flex II (2), Cardioform Septal (2), Occlutech ASD (1)	10 (4.3%)	1 (0.2%)
Saver (2017) [20]	980	ECG 1, 6, 12, 18, 24 m	Amplatzer PFO (467)	7 (1.5%)	1 (0.2%)
Lee et al. (2018) [21]	120	ECG 1, 3, 6, 12, 24 m	Amplatzer PFO (120)	1 (0.8%)	1 (0.8%)
Scacciatella et al. (2018) [34]	374	ECG 1, 6, 12 m, yearly	Amplatzer PFO (359)	2 (0.5%)	10 (2.8%)

A amplatzer, AF atrial fibrillation, m month, n n nullum nomen