Table 1.
General characteristics of patients at study enrolment
| Total recruitment | 570 (100%) |
| Women | 306 (54%) |
| Age ± SD | 61 ± 17 |
| Primary Indication | |
| Unexplained syncope | 517 (91%) |
| Unexplained pre-syncope | 42 (7%) |
| Other | 11 (2%) |
| History | |
| Hypertension | 277 (49%) |
| Coronary artery disease | 84 (15%) |
| Valvular heart disease | 30 (5%) |
| Cardiomyopathy | 18 (3%) |
| Stroke/TIA | 57 (10%) |
| Diagnostic work-up before ILR implant | |
| In an initial phase of diagnostic work-up of syncope | 128 (22%) |
| After full evaluation of mechanism of syncope | 386 (68%) |
| Device Implanted | |
| Reveal DX | 264 (46%) |
| Reveal XT | 52 (9%) |
| Reveal Plus | 254 (45%) |
| Age at first syncope | 55 ± 20 |
| Previous syncopes median (IQ range) | 4 (2–6) |
| Syncopes in the last 2 years median (IQ range) | 3 (2–4) |
| Syncopal episodes per year median (IQ range) | 2 (1–3.5) |
| Median interval between first and last episode years (IQ range) | 2 (0–4) |
| Any previous hospitalization because of syncope | 399 (70%) |
| Any syncopal episodes without prodromes | 339 (59%) |
| Any syncopal episodes with severe trauma | 204 (36%) |
| Any syncopal episodes suggestive of vasovagal origin | 86 (15%) |
| Any situational syncope | 39 (7%) |
| Characteristics of last syncope | |
| After effort | 28 (5%) |
| During effort | 144 (25%) |
| At rest | 294 (52%) |
| Unknown | 97 (17%) |
| Missing | 7 (1%) |
| Symptoms | |
| Muscle spasms (one sided) | 8 (1%) |
| Muscle spasms (two sided) | 19 (3%) |
| Grand mal | 10 (2%) |
| Other muscle spasms | 14 (2%) |
| Transpiration | 73 (13%) |
| Cyanosis | 19 (3%) |
| Angina pectoris | 23 (4%) |
| Palpitations | 76 (13%) |
| Dizziness | 163 (29%) |
| Dyspnoea | 33 (6%) |
| Fatigue | 95 (17%) |
| Other | 80 (14%) |
| None | 266 (47%) |