Risk of ventricular arrhythmia in patients with myocardial infarction and non-obstructive coronary arteries and normal ejection fraction

Table 3 Acute event rates

	All patients (n = 131)	MI (n = 34)	Myocarditis (n = 47)	“No LGE” (n = 50)	P
Ventricular event, n (%)	18 (13.8)	9 (26.5)	7 (14.9)	2 (4.0)1	0.013
VT, n (%)	17 (13.0)	9 (26.5)	6 (12.8)	2 (4.0)1	0.011
Prolonged VT or VF, n (%)	8 (6.1)	4 (11.8)	4 (8.5)	01	0.06
VF, n (%)	1 (0.8)	0	1 (2.1)	0	0.41

¹P significant between MI and “no LGE” groups. MI: Myocardial infarction; LGE: Late gadolinium enhancement; VF: Ventricular fibrillation; VT: Ventricular tachycardia.