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Table 2 Findings on admission ECG related to hs-cTnT

From: Determinants of high sensitivity cardiac troponin T elevation in acute ischemic stroke

  All patients hs-cTnT ≤14 ng/L hs-cTnT > 14 ng/L p value
Heart rate (n = 279) 71.9 (±15.5) 73.2 (±16.2) (n = 127) 76.7 (±20.2) (n = 152) 0.296
Pacemaker (n = 279) 3 (1.1) 1/127 (0.8) 2/152 (1.3) 0.996
Atrial fibrillation/ flutter (n = 276) (2) 72 (25.8) 14/127 (11.0) 58/152 (38.2) <0.001
PR interval (n = 207) (1) 173.4 (±33.0) 167.6 (±31.0) (n = 113) 180.4 (±34.1) (n = 94) 0.005
QRS duration (n = 276) (2) 103.0 (±29.3) 97.7 (±17.1) (n = 126) 107.5 (±35.9) (n = 150) 0.010
QTc interval (n = 276) (2) 416.5 (±38.2) 413.0 (±24.2) (n = 126) 419.5 (±46.7) (n = 150) 0.010
Right bundle branch block (n = 276) (2) 19 (6.9) 4/126 (3.2) 15/150 (10.0) 0.026
Left bundle branch block (n = 276) (2) 12 (4.3) 4/126 (3.2) 8/150 (5.3) 0.381
Q wave (n = 276) (2) 34 (12.3) 11/126 (8.7) 23/150 (15.3) 0.096
Left ventricular hypertrophy (n = 264) (2, 3, 4) 63 (23.9) 21/122 (17.2) 42/142 (29.6) 0.019
ST segment elevation (n = 201) (2, 3, 5) 6 (3.0) 3/101 (3.0) 3/100 (3.0) 0.990
ST segment depression (n = 201) (2, 3, 5) 29 (14.4) 9/101 (8.9) 20/100 20.0) 0.025
T-wave inversion (n = 201) (2, 3, 5) 31 (15.4) 10/101 (9.9) 21/100 (21.0) 0.029
  1. Categorical variables are presented in absolute values with percentages; n (%). Continuous variables are presented as mean (±SD).
  2. hs-cTnT, high sensitivity cardiac troponin T.
  3. (1) Excluded if presence of atrial fibrillation/ flutter.
  4. (2) Excluded if presence of pacemaker.
  5. (3) Excluded if presence of left bundle branch block.
  6. (4) Sokolow-Lyon voltage > 3.5 mV and/or Cornell product > 2440 mm x ms.
  7. (5) Excluded if presence of left ventricular hypertrophy.