Take a look at an ECG on the left and give me your diagnosis.
Note small notches in both lead V1 and lead V2, findings suggestive of tiny myocardial fibrosis in the area reflecting the leads or the anteroseptal wall.
You may make a diagnosis of fragmented QRS, which is defined as 2 or more notches in consecutive leads of the same group (i.e., inferior leads, lateral leads, or leads V1-4). Attention must be paid on ECG with bundle branch blocks, though.
The clinical significance of fragmented QRS remains unestablished but there are some reports to show that fragmented QRS is significantly associated with an increased risk of cardiovascular adverse events in the future.