When is it safe to resume sexual activity after heart surgery?

It is safe to resume some modified level of sexual activity within four weeks of heart surgery. It is important to understand that the breastbone, if divided, takes approximately six weeks to heal. Sexual positions that stress that incision, should be avoided. More specifically, any sexual position that requires supporting the body weight with arms (i.e missionary position for the male patient), should be deferred until week six.
There is no contraindication to achieving orgasm, after cardiac surgery. Meaning the repair to the heart will not be a risk.