Your kidney damage or stroke that occured during or just after heart surgery may from a drug given to control bleeding during the surgery called Trasylol. It is worth investigating. According to Opednews.com,
The researcher’s determined that patients treated with Trasylol, had a risk of kidney failure 259% greater than patients who received no drugs. The problem for surgery patients who may have been harmed by Trasylol, is that most people are never told what drugs they received during surgery. And while Trasylol is only approved for heart surgery, the drug has been used off-label during many other types of surgeries as well.