Totally side effect free if we ignore the risk of stroke from cardiopulmonary bypass (at least 0.5%), infection of the chest cavity (0.5-3% incidence of mediast

Totally side effect free if we ignore the risk of stroke from cardiopulmonary bypass (at least 0.5%), infection of the chest cavity (0.5-3% incidence of mediastinitis after median sternotomy), anesthesia complications, post op pulmonary embolism, pneumonia, UTI, etc.