Study population (N=455)
Age (years) 64.9 ± 15.7
Females 110 (24.3%)
Device type: ICD – single chamber
ICD – dual chambers
CRTD
S-ICD
163 (35.82%) 75 (16.48%) 180 (39.56%) 37 (8.13%)
Indication: Ischemic heart disease
Non-ischemic dilated cardiomyopathy
Hypertrophic cardiopathy
Arrhythmic disease
Brugada Syndrome
Other
Other
183 (40.22%) 148 (32.53%) 42 (9.23%) 55 (12.09%) 16 (3.51%) 39 (8.57%) 27 (5.93%)
Prevention type: Primary
Secondary
358 (79.20%) 94 (20.80%)
History of previous device therapy 89 (19.56%)
History of recent device therapy (< 12 months) 25 (5.49%)
Treatment with antiarrhythmic drugs Beta-blockers
Amiodarone
Mexiletine
346 (85.86%) 138 (34.24%) 14 (3.47%)
Mean lower cut off for tachycardia discrimination (bpm) 182.7 ± 20.9
Mean lower cut off for tachycardia monitor (bpm) 156.2 ± 13.7
Mean cut off for VF discrimination (bpm) 206.7 ± 15.8