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Table 3 Cardiovascular and neurally-mediated diagnostic tests

From: Syncope and Epilepsy coexist in ‘possible’ and ‘drug-resistant’ epilepsy (Overlap between Epilepsy and Syncope Study - OESYS)

  Total population (n = 107) Possible Epilepsy (n = 63) Drug-resistant Epilepsy (n = 44)
Abnormal ECGa, n (%) 9 (8.4) 6 (9.5) 3 (6.8)
Orthostatic Hypotension, n (%) 33 (30.8) 17 (27.0) 16 (36.4)
Head-up Tilt testing
 Performed, n (%) 92 (86.0) 55 (87.3) 37 (84.1)
 Diagnostic, n (%) 52 (48.6) 35 (55.6) 17 (38.6)
 Myoclonic jerks, n (%) 18 (16.8) 16 (25.4) 2 (4.5)
Carotid Sinus Massage
 Performed, n (%) 104 (97.2) 60 (95.2) 44 (100.0)
 Diagnostic, n (%) 7 (6.5) 5 (7.9) 2 (4.5)
Echocardiography performed b, n (%) 43 (40.2) 27 (42.9) 16 (36.4)
24 h Holter monitoring performedc, n (%) 43 (40.2) 20 (31.7) 23 (52.3)
Exercise test performed, n (%) 13 (12.1) 10 (15.9) 3 (6.8)
Electrophysiological study performed, n (%) 3 (2.8) 2 (3.2) 1 (2.3)
ILR implanted d, n (%) 13 (12.1) 6 (9.5) 7 (15.9)
  1. ECG electrocardiogram, ILR intermittent loop recorder
  2. aLeft bundle-branch block, bifascicular block, previous myocardial infarction, atrial fibrillation
  3. bRevealed 1 severe aortic stenosis
  4. cRevealed 1 bradycardia/tachycardia syndrome and 1 advanced second-degree AV block
  5. dRevealed 1 ventricular tachycardia and 2 asystolic pauses