Table 2. Characteristics of the ICDs in the Study Population .
| Variable | Study Population (n = 255) |
|---|---|
| ICD type, n (%) | |
| Single chamber device | 65 (25.4) |
| Dual chamber device | 110 (43.1) |
| Biventricular device | 80 (31.3) |
| ICD manufacturer, n (%) | |
| Medtronic | 140 (54.9) |
| St. Jude | 109 (42.7) |
| Bostone | 6 (2.4) |
| RA leads (n = 190) | |
| Capsure | 110 (57.8) |
| Tendril | 66 (34.7) |
| Isoflex | 11 (5.7) |
| Flextend | 3 (1.5) |
| RV leads (n = 255) | |
| Endotalk | 2 (0.7) |
| Sprint Quattero | 101 (39.6) |
| Riata | 79 (30.9) |
| Durata | 32 (12.5) |
| Sprint Fidelis | 41 (16.0) |
| LV leads (n=80) | |
| Attain | 47 (58.7) |
| QuickSite | 24 (30.0) |
| Epicardial | 5 (6.2) |
| QuickFlex | 4 (5.0) |
Abbreviations: ICD, Implantable cardioverter defibrillator; LV, Left ventricle; RA, Right atrium; RV, Right ventricle