MTHFR Gene Mutations / Mother & Daughter

My daughter was a full term baby that had an IVH in uetro.  She has left hemiparsis and hydrocephalus from the event.  When she was born (in 2002) all of her blood work came back normal.  We also revisited hematology when she was two (in 2004) and had them do a full workup and all came back normal again.  This year our pediatric neurologist wanted to do some further blood clotting tests and my daughter tested positive for homozygous MTHFR c677t gene mutations.  The neurologist also suggested that I be tested and I am compound heterozygous for MTHFR c677t and a1298c.

My question concerns the treatment of this genetic defect.  Both my daughter and my serum folate and homocyctine levels are normal and we are taking a multivitamin with folic acid, but our doctors are suggesting more treatment.  My daughter's neurologist would like her to have a lumbar puncture to see if she has cerebral folate deficiency so they can start her on folinic acid.  I have suffered from bouts of anexity and depression, so when I told my psychiatrist that I had this gene mutation, he recommended putting me on Deplin (l-methylfolate).

My concern for my daughter is that she has a VP Shunt and her neurosurgeon has said that the LP could cause a shunt failure (which we would not like to happen).  She had 5 revisions in her first year of life.

Do these treatments sound reasonable?  Thank you.

[wjs9393]

Thank you for your comments.  What type of doctor should I see about this?  Most of the physicians seem confused about how best to treat this.