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

Based on the given feature description, the feature "ritm_ecg_p_01" has two categories: "yes" and "no". To determine whether the myocardial infarction complications data of this patient show chronic heart failure or not, we can directly map the "ritm_ecg_p_01" feature values to the target classes.

For the target class "no", the possible value of "ritm_ecg_p_01" is "no". This indicates that when the patient has a sinus rhythm with a heart rate of 60-90 at the time of admission to the hospital, it is more likely that the patient does not have chronic heart failure.

For the target class "yes", the possible value of "ritm_ecg_p_01" is "yes". This suggests that when the patient has a sinus rhythm with a heart rate of 60-90 at the time of admission to the hospital, it is more likely that the patient does have chronic heart failure.

Since the feature "ritm_ecg_p_01" only has two distinct values, "yes" and "no", there is no need to include any other values in the dictionary.