Table 1.
Design of studies and characteristics of participants.
| First Author [Ref. #] | Type of Study, Country, Year | Criteria for Inclusion of Participants | Number of Patients | Male Gender | Age (Years) | Ejection Fraction (%) | Indications | Underlying Heart Disease | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary Prevention | Secondary Prevention | CM (Ischemic, Non Ischemic, Dilated) |
CAD/ IHD | HCM | Others | |||||||||||||||||
| ICD-S | ICD-TV | ICD-S (%) | ICD-TV (%) | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | ICD-S | ICD-TV | |||
| Köbe et al. [13] | Case-control, Germany, 2013 | Primary and secondary prevention | 69 | 69 | 50 (72) | 50 (72) |
45.7 | 47.7 | 46.2 | 40.6 | 41 (59) |
34 (49) |
28 (41) |
35 (51) |
25 (36) |
32 (46) |
11 (16) |
13 (19) |
10 (14) |
4 (6) |
24 (35) |
22 (32) |
| Pedersen et al. [14] | Case-control, Czech Republic, Denmark, Germany, Italy, Netherlands, New Zealand, Portugal, United Kingdom, 2016 | Primary and secondary prevention | 167 | 167 | 122 (73) | 120 (72) |
54 | 55 | NR | NR | 123 (74) |
115 (69) |
44 (26) | 52 (31) | 37 (22) |
51 (30) |
- | - | 22 (13) |
18 (11) |
76 (45) |
82 (49) |
| Brouwer et al. [12] | Case-control, Netherlands, 2016 | Primary and secondary prevention | 140 | 140 | 84 (60) | 87 (62) |
41 | 42 | 50 | 49 | 93 (66) |
86 (61) |
47 (34) | 54 (39) | 54 (39) |
71 (51) |
- | - | - | - | 84 (61) |
68 (49) |
| Botto et al. [11] | Cohort, Italy, 2017 | Primary and secondary prevention | 62 | 448 | 45 (73) |
354 (79) |
47 | 67 | 49 | 34 | 30 (48) | 357 (80) | 32 (52) |
91 (20) |
21 (34) |
362 (81) |
18 (29) |
275 (61) |
9 (14) |
16 (4) |
9 (14) |
47 (10) |
| Knops et al. [15,24] | Non-inferiority trial, Germany, Netherlands, United Kingdom, United States, 2020 | Primary and secondary prevention | 426 | 423 | 337 (79.1) | 345 (81.6) | 63 | 64 | 30 | 30 | 346 (81.2) | 339 (80.1) | 80 (18.8) | 84 (19.9) | 388 (91) | 396 (93.6) | NR | NR | 15 (3.5) | 7 (1.7) | 38 (8.9) | 27 (6.38) |
CM= cardiomyopathy; CAD= coronary artery disease; IHD= ischemic Heart Disease; HCM= hypertrophic cardiomyopathy; ICD-S= subcutaneous implantable cardioverter defibrillator; ICD-TV= transvenous implantable cardioverter defibrillator.