Heart failure

my father in law of (80) had mrsa in a ulcer which didnt heal.(he is diabetic) He was admitted to Hosp before surgery as he wasboing sick and his heart rate was just over 30.GP suggested he had toxins from his meds so took him off one drug which appeared to settle him for a while.
He was then transfered to another hospital for his amputation which went well.
24hrs after, he had a stomach bug and was tested positive for C-Diff. 2 days later he suffered a stroke. 4days after his heart started to fail and was fitted with a temporary pacemaker. His heart is now at the correct pace but only with the pace maker. They have now found a clot in his right arm!! He is still MRSA positive. The consultant can find no reason why his heart is so slow.
Can MRSA cause organsto fail?This is the 2nd amputation since November forthe same reason. If you do a search on amputation you will find the previous story.
As a note on dirty hospitals....when visiting one day, a soiled pad covered in faeces was left on the floor next to my in-laws bed.
Hygiene and cross infection issue aside, the indignity of the poor man having that to be found by his relatves.
I would appreciate coments please.