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 |