Table 2.

Data given as number or mean ± SD (%).* Significant value. CRT (cardiac resynchronization therapy).

Procedural Characteristics
	H2O2-group (n = 429)	Control-group (n = 858)	P-value
Heart Rhythm Device
Pacemaker [PM]	197 (45.9%)	409 (47.7%)	0.59
Single Chamber PM	23 (5.4%)	60 (7.0%)	0.28
Dual Chamber PM	122 (28.4%)	292 (34.0%)	0.04*
CRT-PM	52 (12.1%)	57 (6.6%)	<0.01*
Implantable-Cardioverter-Defibrillator [ICD]	230 (53.6%)	397 (46.3%)	0.01*
Single Chamber ICD	61 (14.2%)	167 (19.5%)	0.02*
Dual Chamber ICD	31 (7.2%)	57 (6.6%)	0.72
CRT-D	138 (32.2%)	173 (20.2%)	<0.01*
Implantable-Loop-Recorder	2 (0.5%)	43 (5%)	<0.01*
Cardiac Contractility Modulation	0%	9 (1.0%)	–
Temporary Pacing
Prior temporary pacing	53 (12.7%)	83 (9.7%)	0.15
Duration [days]	2.9 ± 1.8	3.3 ± 3.0	0.92
Implantation Procedure
1st Procedure	252 (58.7%)	538 (62.7%)	0.18
Follow-Up Intervention	177 (41.3%)	320 (37.3%)	0.18
Generator exchange	29 (6.8%)	104 (12.1%)	<0.01*
Device upgrade	84 (19.6%)	90 (10.5%)	<0.01*
Device explantation	17 (4.0%)	35 (4.1%)	1.0
Complications needing revision	47 (11.0%)	91 (10.6)	0.84
Lead dysfunction	35 (8.2%)	78 (9.1%)	0.60
Pocket Hematoma	6 (1.4%)	16 (1.9%)	0.65
Device Placement
Site of operation [left]	367 (85.5%)	740 (86.2%)	0.73
Sub-cutaneous/sub-fascial	392 (91.4%)	757 (88.2%)	0.13
Sub-muscular	36 (8.4%)	97 (11.3%)	0.12
Venous Access
Puncture (subclavian/axillary vein)	378 (88.1%)	667 (77.7%)	<0.01*
Cephalic cut-down	5 (1.2%)	8 (0.9%)	0.77
Wound Closure
Intracutaneous suture	21 (4.9%)	189 (22.0%)	<0.01*
Dermal Glue	408 (95.1%)	669 (77.9%)	<0.01*
Bleeding Management
Drainage	50 (11.7%)	117 (13.6%)	0.33
D-stat Flowable Hemostat™	39 (9.1%)	30 (3.5%)	<0.01*