The Scary thing about Epilepsy Drugs

As I may have mentioned in the past, I have epilepsy in addition to CVID, and was diagnosed with it just a few years before my January 2010 CVID diagnosis. In 2009 I was put on a drug that seemed like a miracle to me (Trileptal...aka Oxcarbazapine), as it controlled my seizures with minimal side effects.

Fast-forward to May 2011, when I found a case study written by Dr. Charlotte Cunningham-Rundles (the leading CVID researcher in the country) linking Trileptal to the cause of CVID in a patient! I was shocked, confused, excited, and even a little bit heart-sick. I spent many days weighing which disease was easier to live with as I knew that my many sensitivities had ruled out most of the seizure drugs that would work on my kind of epilepsy. The thing that made me decide that epilepsy would be the better disease to have to live with was seeing what some of my CVID support group friends suffer with every day, and knowing that I'm not at that point yet but it could be in my future.

The patient in the case study was taking Trileptal to control pain, and once she was taken off of it her body started rebuilding antibodies within 2 months of stopping it, and had fully recovered except for IgA after 8 months. I then realized that the only way to find out whether Trileptal had caused the CVID would be to stop the taking it, but in order to find out whether my body was building its own antibodies would be to stop my IVIG treatments as well. That seemed like a completely impossible option, as I had just started a new job and didn't see any way I could change seizure drugs without going on extended medical leave while my body and brain adapted to new medications. I tried going onto Topamax with the intent of easing off of Trileptal, but my body didn't like that one at all. After a full week of constant intense nausea and not decreasing the Trileptal dose, my neurologist told me to stop the Topamax, and then he began research to find something else that I could take.

Time passed. In August I went to an allergist at Stanford to help me with my allergic reactions that I experience despite testing negative to allergens (because I have very low IgE due to the CVID). That Dr ran a test of my blood sodium level and found that it was dangerously low (121). He told me to get an emergency visit with my neurologist to get off of the Trileptal, as Trileptal is known for pushing blood sodium levels down in some people. Luckily, my neurologist had found a new seizure drug called Vimpat (Lacosamide) that seems to work well for me, is not on the list of seizure drugs that may cause CVID, and has minimal side effects...another miracle drug...I hope it is as good as it seems.

Appointment with Immunologist

Last week I saw Dr. Lewis at Stanford again and he gave me the results of all the tests that they ran last time. IMy IgA was undetectable, IgM was up, and IgG is now over 1500! They said they don't want it to go higher. I responded well to Diptheria, Tetanus, Pertussis, and had normal results for Tuberculosis.

Dr Nelson, the Fellow who works with me most, said that they might run the IgA antibody test on me, at least, I think that's what she said. At first I thought she meant they'd run a test on me to see if I'm allergic to IgG, which she said I could be since I'm having so many reactions to my treatments, so I'm really not certain what test they mean to run.

Dr Lewis recommended various specialists for me who at least know him, and hopefully are familiar with CVID too.

We discussed ways to deal with my treatments, and for now we're going to continue as is with taking my asthma medicine regularly, taking my rescue inhaler 20 minutes before treatment and again 4 hours later, taking 2 prednisone, 2 Tylenol, and 2 Benadryl. I get exhausted just writing about it. ;) He also recommended that I start pushing hydration, even harder than I normally would for an infusion, starting the day before and continuing for 2 days afterward.

If those suggestions don't work, then they will add in using my nebulizer before/during treatment, and that would mean I'd also have to take Clonazepam to stave off seizures. What fun! I'm hoping and praying that it won't come to that. If that doesn't work, then they'll move on to about 20ml treatments / day probably for 5 days of the week. If I still have problems with that, then they will take me off of Ig therapy and put me on prophylactic antibiotics.

So, now that I know all the possibilities, I'm more coming to terms with my fears over the worst case scenario. Dr Lewis thinks that I should adapt to the current treatment and that the realistic worst it will be for me is to add in the nebulizer. That's much more acceptable to me than trying to wing it with antibiotics.

Here are some of the questions I asked while I was there:

Question: Can I eat sushi safely?

Answer: Yes, although eating exclusively saltwater sushi is safest, and salmon is the most dangerous.

Question: What wording should I use on my medic-alert bracelet?

Answer: IgA deficient with CVID

Question: What is IgM?

Answer: IgM is the body's first line of defense against infection, but IgG covers for it.

Question: IgA is for protecting our eyes, mouths, and mucus membranes from bacteria/viruses, do I need to be extra cautious of infection in those places due to not having IgA?

Answer: IgG will protect those places also

Dr Lewis told me that many of his CVID patients get daily migraines, and also migraines that precipitate IVIG. He recommended a drug called Diamox, but when I mentioned it to my neurologist the neurologist said that Diamox is for brain swelling, and gave me Verapamil instead. Apparently Verapamil is good for neurologic migraines.

Thanksgiving and my Fourth Gammagard Infusion

On Thanksgiving Day I had 2 asthma attacks and a migraine. I was doing ok, but the candles at dinner, smoke on people's clothing and perfume all served to aggravate my breathing and I ended up having a very embarrassing (all public attacks embarrass me) asthma attack in front of my boyfriend's family. They were great about it, and helped me get some tea and water (tea helps loosen my chest), and were very considerate and kind about everything. I just hate being the center of attention like that, especially when I don't know people that well. I took 2 Benadryl, had extra caffeine in the hot tea, and took my inhaler probably about 3-4 times.

Then we went to my home for dinner #2 with my mom. I was doing better and pretty much held my breath from the car to the house because of all the chimney smoke in the air (I was wearing a mask too). I sat up in bed to recuperate from the attack until dinner was ready. I felt hungry but exhausted and nauseous. When dinner was ready I was so nauseous I could hardly eat despite feeling hungry, and I had a migraine on top of it. I took some Tylenol for the migraine. On the way back to my boyfriend's house, when he put the car's heater on defrost the smoke sucked into the car, which triggered attack #2. Luckily it wasn't as bad as the first one.

The Infusion

Friday morning I woke up with the headache, but it wasn't as bad as the night before. I got ready to start my infusion and had just put the first needle in when I started vomiting violently and came very close to fainting. I was so sick that I thought I'd have to go to the hospital. My vision became completely obscured by what looked like snowflakes, and I wasn't able to focus for probably close to 5 minutes. My boyfriend got me a Zofran, and totally took care of me; about 10 minutes after that I felt better. I don't know why I threw up, but I do know it wasn't related to my infusion. I had to teach my boyfriend how to do my infusion because I was not functioning very well; he put most of the needles in for me. I had taken a prednisone about 40 minutes to an hour before I vomited, and I was hoping that I'd have enough in my system to keep me from reacting to the infusion. I also took my inhaler, along with the 2 Benadryl and 2 Tylenol as premeds. Once again I put the 60 ml/hr tubing in series with the 120 ml/hr, and the infusion lasted for a total of 6 hours. I had some swelling and pinching at the injection sites, but never enough that I had to turn the pump off. I didn't have any breathing problems either! I took my inhaler again 4 hours into the infusion, and I had a very slight tightness in my chest at the very end and took my inhaler once more. Overall, I felt that the infusion was very successful! :)

The Next Day

Today I woke up feeling very weak and shaky. I had trouble sleeping last night after the 2nd prednisone and ended up taking 2 Benadryl again to help me sleep and prevent reactions during the night. I eventually fell asleep about 4:00 AM and slept fitfully til noon. My chest hurts a lot. It hurts to breathe deeply or laugh or cough, but I'm hoping that's just from the vomiting yesterday, and not my lungs. I'm eating very cautiously and very small meals because I want to avoid a recurrence of yesterday. I'm still in bed because I feel so weak, but I don't have a migraine, and the shortness of breath I've had seems more related to the chest pain rather than asthma.

Visit to my Neurologist

The week  following  the infusion I was able to see my neurologist about the temporary blindness that happened after I vomited. He believes that the blindness was caused by a migraine and put me on a blood pressure medication called Verapamil to help relieve the pressure in my head. He said that there's a migraine specialist who he knows at UCSF who treats neurological migraines (ones with strange things like blindness, numbness, the room spinning, etc) with the short-acting form of it, so I have to take it 3 times a day. The medication seems to be helping because I've been having fewer headaches.