Five recommendations for people with NF2
The following is a blog by Dr. Luiz Rodrigues . Originally posted in Portuguese on March 27, 2017. Additions and translation were provided by Dr. Mata-Machado from the NF Clinic at Amita Health/St. Alexis.
Question: I received an NF2 diagnosis today. I’ve never really had anything serious. I’m 34 years old and have a 2-year-old daughter. A few days after she was born I had a ringing in my ears (but couldn’t hear on my left side. But I’m not sure when that happened). I went to an ENT specialist, who barely examined me and told me that I was constipated only. I reported that I had not heard from the left ear for a while and the right was with that buzzing, but he did not seem concerned, as the buzzing ended. So I thought everything was okay. I went on with my life, without caring about it. About 3 weeks ago, I had a new buzz, and I listened very quietly to the only ear I had left. I had moved and decided to look for a new ENT. He asked me for a lot of tests, including a brain MRI, which came with the diagnosis of NF2. I would like your help and guidance.
Here is our advice:
First – NF2 is usually a slowly progressive disease, auditory tumors are ALWAYS benign and only grow about 1 mm per year on average and the symptoms (hearing loss, tinnitus, dizziness) are not always related to the the size of the tumors.
Second – We only perform surgical intervention when the benefit is greater than the risks. That is, we do not operate a tumor just because it is there and we do not prescribe chemotherapy or radiation therapy on NF2 tumors (see expert opinion below).
Third – The fact that your first symptoms appeared only after the age of 30 indicates that you probably have the least severe form of the disease, a slower progression, and fewer complications. The later the first symptom, the less severe the NF2.
Fourth – Your daughter’s chance of having inherited the NF2 from you is less than 50%, and may be as low as 25%, depending on some signs we find on the clinical examination. Heredity in NF2 is complex because in many cases, there is a mosaic form meaning only one part of your body has the mutation.
Fifth – We can now evaluate you and your daughter by performing a relatively simple, quick and safe ophthalmic examination, which is called optical coherence tomography (see HERE for more information on this test), which allows us to better classify the presence or absence of NF2 and how complex it is so that we can act more calmly in the future.
NF2 Tumor Treatments – Expert Opinion For healthcare professionals who read in English and want to know one of the latest scientific papers reviewing the treatment of tumors in NF2, I recommend clicking HERE. In this article we can extract some interesting observations.
1) Surgery and radiotherapy that physicians commonly use in vestibular schwannomas on people without NF2 do not work well in people with NF2. In fact, the side effects of radiotherapy in people with NF2 are sufficient to contraindicate this form of treatment.
2) Since the surgical treatment of vestibular schwannomas is also less efficient in people with NF2, It must be postponed until you are sure that the benefits will outweigh the risks (see HERE ).
3) Meningiomas should also only be treated with surgery in people with NF2 when they present important symptoms, and for them, radiation therapy is also contraindicated.
4) There are several drug studies for the purpose of reducing vestibular schwannomas in people with NF2, but there is no certainty that they should be indicated for the time being. In special cases bevacizumab has been tried, with encouraging results (see HERE ). And radiation therapy is also contraindicated for them.