Based on my prior knowledge, the presence of paroxysms of supraventricular tachycardia (SVT) at the time of admission to the intensive care unit (ICU) could potentially be related to the development of chronic heart failure in patients with myocardial infarction complications.

To analyze the relationship between the SVT_POST feature and the presence of chronic heart failure, we need to compare the distribution of SVT_POST values for patients with and without chronic heart failure.

Here is the dictionary generated based on the analysis:

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

Explanation:
- For the target class "no" (patients without chronic heart failure), the only possible value for SVT_POST is "no". Therefore, the list of possible values for the feature SVT_POST in this class is ["no"].
- For the target class "yes" (patients with chronic heart failure), both "no" and "yes" are possible values for SVT_POST. Therefore, the list of possible values for the feature SVT_POST in this class is ["no", "yes"].

Please note that this analysis assumes that the feature SVT_POST is directly related to the presence of chronic heart failure. Further statistical analysis or machine learning modeling may be necessary to determine the significance and predictive power of this feature.