Heart surgery was being performed Monday morning . The hospital said it is working with the family to determine what happened. The vice president 's heart attack and surgery was not expected to disrupt a meeting between Santos and Venezuelan President Hugo Chavez scheduled for Tuesday . The surgery was not expected to disrupt a high-level Colombia-Venezuela meeting Tuesday . Angelino Garzon was sworn into office on Saturday .
Heart surgery was being performed Monday morning . The hospital said it is working with the family to determine what happened. The surgery was not expected to disrupt a high-level Colombia-Venezuela meeting Tuesday . Angelino Garzon was sworn into office on Saturday .