Dengue hemorrhagic fever and cardiac involvement

Table 1 Clinical presentation of the patients with acute myocarditis

	Clinical presentation of acute myocarditis
1	No clinical manifestations
2	Abnormal ECG or X-ray
3	Unexplained sinus tachycardia
4	Atrial or ventricular premature beats
5	Atrial or ventricular tachycardia
6	Partial or complete heart block
7	Ventricular fibrillation/cardiac arrest
8	Acute cardiac failure
9	Circulatory collapse (shock)

ECG: Electrocardiogram.