As far as broken ribs
are concerned, they are absolutely normal after thoracic surgery
, rather the ribs are deliberately broken or cut in some cases to get proper field of vision during cardiac surgery
The rib fractures are also seen sometimes after vigorous CPR(Cardio Pulmonary Resuscitation
Regarding your swelling, you should let your cardiologist examine it more properly, or rather do a USG scan of the swelling.
hope my info helped you
Dr Hari Om Chandrakar