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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.