The results of a blood test done immediately after heart surgery can be a meaningful indicator of postoperative stroke risk, a study by researchers at Wake Forest Baptist Medical Center has found.  An acutely elevated level of blood urea nitrogen (BUN), a measure of kidney function detected through blood testing, was the most powerful predictor of postoperative stroke among the study’s subjects. The team state … Continue reading New blood test identifies stroke risk following heart surgery with greater accuracy than present methods.