Table 1.

Studies using implantable loop recorders in HD patients.

Study	Number	Age (years)	IHD	Follow up (months)	SCD/Total mortality (%)	Brady-arrhythmic SCD	VT-VF	Significant arrhythmic events	Comments
Wong M.C.G. et al., 2015	50	67 ± 11	48%	18 ± 4	8/10 (80%)	6	2	Pacemaker in 1 patient Bradycardia 30% Sinus arrest 28% 2nd degree atrioventricular block 4% Non-sustained VT 20% AF 28%	All SCDs and increased rates of arrhythmias during long interdialytic interval.
Silva et al., 2015	100	59 ± 8.8	34%	14 ± 4	7/18 (39%)	3	1	Bradycardia 25% Asystole 4% Non-sustained VT 56% AF 13%	Left Ventricular dilatation associated with higher occurrence of non-sustained VT.
Sacher et al., 2018	71	65 ± 9	NR	21 ± 7	4/16 (25%)	4	–	Conduction Abnormalities 14% (patient years) Non-sustained VT 9% (patient years) AF 37% (20% de novo)
Roberts et al., 2017	30	68 ± 12	22%	18 ± 12	2/8 (25%)	0	1	Pacemakers in 3 patients (2 dual chamber pacemakers and 1 biventricular pacemaker)	Increased nocturnal bradycardias.
Roy-Chaudhury et al., 2018	66	56 ± 12	48.5%	6	0	–	–	Pacemakers in 5 patients Bradycardia 25.8% Asystolic events∗ 10.6% Non-sustained Ventricular arrhythmias ∗ 77.3% AF∗ 40.9% (device detected)	Increased rates of bradyarrhythmic events at the end of long interdialytic interval.

AF, atrial fibrillation; IHD, ischemic heart disease; NR, not reported; SCD, sudden cardiac death; VT, ventricular tachycardia; VF, ventricular fibrillation. Table was modified with permission by Kalra et al. (2018).