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Table 1 Baseline characteristics of patients in the VT group and Non-VT group

From: The relationship between J wave and ventricular tachycardia during Takotsubo cardiomyopathy

 

Total (n = 79)

VT group (n = 20)

Non-VT group (n = 59)

P value

Age, years

66.4 ± 15.3

68.6 ± 13.8

65.6 ± 15.7

0.55

Male gender, n (%)

37 (47)

13 (65)

24 (41)

0.07

Body surface area, m2

1.5 ± 0.1

1.6 ± 0.1

1.5 ± 0.1

0.58

Cardiac risk factor

Diabetes, n (%)

19 (25)

5 (25)

14 (25)

1.00

Hypertension, n (%)

40 (50)

8 (40)

32 (53)

0.30

Smoker, n (%)

20 (25)

5 (25)

15 (25)

1.00

LDL-C, mg/dL

83.2 ± 41.9

86.0 ± 43.7

75.7 ± 37.8

0.42

Trigger

Physical triggers

 Asthma attack, n (%)

3 (4)

1 (5)

2 (3)

0.73

 Ischemic stroke, n (%)

3 (4)

0 (0)

3 (5)

0.31

 Bleeding, n (%)

4 (5)

2 (10)

2 (3)

0.24

 Sepsis, n (%)

50 (64)

13 (65)

37 (63)

0.89

 Surgical procedures, n %)

3 (4)

2 (10)

1 (2)

0.09

 Malignancy, n (%)

2 (3)

1 (5)

1 (2)

0.41

 AKI, n (%)

6 (8)

0 (0)

6 (10)

0.14

Emotional triggers

 Depression, n (%)

1 (1)

0 (0)

1 (2)

0.56

 Anxiety, n (%)

2 (3)

0 (0)

2 (3)

0.41

 Suicide attempt, n (%)

1 (1)

1 (5)

0 (0)

0.08

 Idiopathic, n (%)

4 (5)

0 (0)

4 (7)

0.24

Clinical presentation

Chest pain, n (%)

22 (27)

4 (20)

18 (30)

0.76

Dyspnea, n (%)

34 (42)

6 (30)

28 (46)

0.57

Nausea/vomiting, n (%)

4 (5)

1 (5)

3 (5)

1.00

Palpitations, n (%)

5 (6)

2 (10)

3 (5)

0.27

Loss of consciousness, n (%)

5 (6)

4 (20)

1 (1)

0.06

Cardiogenic shock, n (%)

21 (26)

9 (45)

12 (20)

0.028

Pulmonary edema, n (%)

52 (65)

15 (75)

37 (61)

0.59

  1. Values are mean ± SD or number (%); VT ventricular tachycardia; CRF chronic renal failure; LDL-C low-density lipoprotein cholesterol; others idiopathic; P value by Student t-Test and Mann–Whitney U test