Table 2. Distribution of CIEDs.

Type of CIED	PM due to AV conduction disturbance	PM not due to AV conduction disturbance	CRT-D	ICD
AAI-PM	0 (0.0)	8 (7.5)
DDD-PM	94 (70.2)	89 (84.0)
VVI-PM	26 (19.4)	7 (6.6)
CRT-P	14 (10.4)	2 (1.9)
CRT-D			31 (100.0)
DDD-ICD				11 (12.8)
VVI-ICD				75 (87.2)
Total	134	106	31	86

Data are expressed as number (%).

AAI: single chamber atrial, AV: atrioventricular, CIED: cardiac implantable electronic device, CRT-D: cardiac resynchronization therapy defibrillator, CRT-P: cardiac resynchronization therapy pacemaker, DDD: dual chamber, ICD: implantable cardioverter defibrillator, PM: pacemaker, VVI: single chamber ventricular.