Based on my prior knowledge, there might be a relationship between the presence of ventricular paroxysmal tachycardia in the anamnesis (feature nr_08) and the likelihood of chronic heart failure in myocardial infarction complications.

To analyze this relationship, I will compare the values of feature nr_08 for the target classes of "no" (indicating no chronic heart failure) and "yes" (indicating chronic heart failure).

Here is the dictionary containing the analysis:

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

This dictionary indicates that for the target class "no" (no chronic heart failure), the possible value for feature nr_08 is "no". And for the target class "yes" (chronic heart failure), the possible value for feature nr_08 is "yes".

Please note that if there are other possible values for feature nr_08 that are hard to predict or not mentioned, they are not included in the dictionary.