```json
{
	"no": ["no"], 
	"yes": ["yes"]
}
```

Based on prior knowledge, we can assume that if a patient has LBBB (anterior branch) on ECG at the time of admission to the hospital, it can be an indication of chronic heart failure. Therefore, the presence of LBBB (anterior branch) on ECG at the time of admission to the hospital ('yes' category of the feature n_p_ecg_p_08) suggests that the myocardial infarction complications data of this patient shows chronic heart failure.