It appears that his left ventricle is has deteriorated slightly from the previous test, but is still within normal range. And the right ventricle prolapse has increased but is still functioning sufficiently. But the pulmonary valve and arteries are dilated.
For the left and right ventricle: both are still within normal range, though worse that when he was last tested. Treatments options are limited and are usually reserved for if the heart cannot work sufficiently as medications come with there own complications. It is likely the doctor just wants to monitor him for now.
For the pulmonary valve & arteries: The dilation is most likely a symptom but may be treatable. You could look into pulmonary valve conduits (http://www.medtronic.com/us-en/patients/treatments-therapies/heart-valve-repair-replacement/contegra-pulmonary-valved-conduit.html)
Overall, it seems like this test shows that his heart is still within normal range, which is likely why he was not prescribed anything.