Electrocardiography as the First Step for the Further Examination of Cardiac Involvement in Myasthenia Gravis

Table 1

Characteristics of electrocardiographic abnormality.

Characteristic	(%)	With left ventricle damage,
Persistent atrial fibrillation	6 (10.3)	3
Atrioventricular block	4 (6.8)	3
ST depression	17 (29.3)	9
Negative T wave	17 (29.3)	8