This Question Is In Regard To My Mother Who Recently

This question is in regard to my mother who recently suffered a slight heart attack last Wednesday. No blockage was found and she was monitored for two days and sent home. I am concerned about the swelling in her left leg. It appears to be getting worse and wonder what may be causing this? The doctors sent her home indicating no edema was present and yet, I don't like the way it looks. Thoughts?