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Table 1 Characteristics of the acute ischemic stroke or TIA cohort by heart dysfunction or normal heart function

From: Heart dysfunction in patients with acute ischemic stroke or TIA does not predict all-cause mortality at long-term follow-up

 

Total

Heart dysfunction

Normal heart function

P-values

 

n = 132

n = 77

n = 55

 

Age (mean ± SD)

73.3 ± 9.2

74.4 ± 8.0

71.7 ± 10.6

0.100

Male (%)

52.3

51.9

52.7

0.930

Stroke (%)

85.6

93.5**

74.5

0.002

TIA (%)

14.4

6.5**

25.5

0.002

NIHSS scores

3.4 ± 4.7

3.9 ± 5.1

2.9 ± 4.1

0.297

mRS at 3-months follow-up

    

  ≤2 (%)

84.7

78.9*

92.7

0.030

  >2 (%)

15.3

21.1*

7.3

0.030

All-cause mortality (%)

29.5

35.1

21.8

0.100

Clinical examinations

    

  Systolic BP (mmHg) (mean ± SD)

169.0 ± 29.5

170.0 ± 32.3

167.8 ± 25.4

0.680

  Diastolic BP (mmHg) (mean ± SD)

94.2 ± 17.6

95.0 ± 19.6

93.1 ± 14.5

0.548

  Heart rate (beats/min) (mean ± SD)

77.2 ± 18.0

77.8 ± 18.3

76.4 ± 17.8

0.660

Laboratory variables

    

  S-Creatinine (μmol/L) (mean ± SD)

84.1 ± 38.2

86.3 ± 43.8

81.0 ± 28.5

0.444

  CRP (mg/L) (mean ± SD)

16.2 ± 32.4

16.7 ± 34.3

15.6 ± 29.7

0.859

  cTNT (μg/L) (mean ± SD)

0.06 ± 0.29

0.08 ± 0.37

0.03 ± 0.04

0.417

Echocardiogram parameters

    

  LVEF (%)

57.6 ± 9.8

56.0 ± 12.0*

60.3 ± 3.2

0.017

  LVDD (cm) (mean ± SD)

4.9 ± 0.8

4.9 ± 0.9

4.7 ± 0.7

0.438

  Left atrium (cm2) (mean ± SD)

19.8 ± 4.4

20.7 ± 4.6**

18.3 ± 3.6

0.004

  Right atrium (cm2) (mean ± SD)

16.2 ± 3.9

16.5 ± 4.2

15.7 ± 3.4

0.309

  PA mmHg (mean ± SD)

31.0 ± 8.4

30.8 ± 6.9

31.4 ± 11.4

0.795

  Stroke volume (mean ± SD)

72.7 ± 19.7

68.8 ± 18.5*

91.0 ± 15.7

0.037

  E/A ratio (mean ± SD)

0.9 ± 0.4

0.9 ± 0.4

0.9 ± 0.3

0.988

  S/D ratio (mean ± SD)

1.4 ± 0.5

1.4 ± 0.5

1.1 ± 0.1

0.324

Cardiovascular risk factors

    

  Smoking (%)

14.4

19.6

8.3

0.102

  Hypertension (%)

59.1

59.7

58.2

0.858

  Diabetes mellitus (%)

18.9

16.9

21.8

0.476

  Hypercholesterolemia (%)1

13.9

15.5

11.8

0.558

Cardiovascular diseases

    

  Myocardial infarction (%)

15.9

19.5

10.9

0.184

  Angina pectoris (%)

15.9

18.2

12.7

0.398

Comorbidity

    

  Pulmonary embolism (%)

1.5

0.0

3.6

0.092

  Previous ischaemic stroke (%)

17.4

19.5

14.5

0.461

  eGFR <60 (mL/min) (%)2

32.3

38.9

23.1

0.063

  Anaemia (%)3

11.7

13.2

9.6

0.541

Pre-stroke medications

    

  ACE inhibitors (%)

19.7

22.1

16.4

0.416

  Angiotensin receptor blockers (%)

18.2

14.3

23.6

0.170

  Beta-blockers (%)

36.4

41.6

29.1

0.142

  Diuretics (%)

26.5

28.6

23.6

0.527

  Aspirin (%)

42.4

44.2

40.0

0.634

  Warfarin (%)

0.8

1.3

0.0

0.396

  Clopidogrel (%)

1.5

1.3

1.8

0.810

  Aspirin + Dipyridamol (%)

1.5

1.3

1.8

0.810

  Dipyridamol (%)

7.6

6.5

9.1

0.578

Post-stroke medications

    

  ACE inhibitors (%)

30.5

34.2

25.5

0.283

  Angiotensin receptor blockers (%)

23.7

21.1

27.3

0.408

  Beta-blockers (%)

44.3

51.3

34.5

0.056

  Diuretics (%)

32.8

34.2

30.9

0.691

  Aspirin (%)

82.4

81.6

83.6

0.760

  Warfarin (%)

8.4

7.9

9.1

0.808

  Clopidogrel (%)

3.1

5.3

0.0

0.084

  Aspirin + Dipyridamol (%)

2.3

3.9

0.0

0.136

  Dipyridamol (%)

46.6

39.5

56.4

0.056

  1. NIHSS, National Institutes of Health Stroke Scale; mRS, modified rankin scale; BP, blood pressure; S-Creatinine, serum creatinine; CRP, C-reactive protein; cTNT, cardiac troponin T; LVEF, left ventricular ejection fraction; LVDD, left ventricular diastolic dimension; PA, pulmonary artery pressure; E/A ration, passive filling of the ventricle (early [E] wave) and active filling with atrial systole (atrial [A] wave); S/D ratio, systolic and diastolic component of pulmonary vein; eGFR, estimated glomerular filtration rate; ACE inhibitors; angiotensin-converting-enzyme inhibitors.
  2. 1Hypercholesterolemia defined as total serum-cholesterol >6 mmol/L.
  3. 2eGFR estimated by Cockcroft-Gault formula.
  4. 3Anaemia according to WHO definition, as hemoglobin <130 g/L (males) and hemoglobin <120 g/L (females).
  5. *, P < 0.05 for comparison of heart dysfunction with normal heart function.
  6. **, P < 0.01 for comparison between heart dysfunction with normal heart function.