Answers on Thursday {hopefully}

We followed up with immunology today... Before I dive into the specifics, I want to explain a few things. I have had some friends and family tell me that they are so lost in the medical lingo but they try to keep up with the boys. I am going to try and break it down for you :)

• Immunodeficiency - as with many other things, can be of varying degrees, can be short-term (transient) or long-term (chronic, life-long)... without getting too specific, basically on some level, their immune system appears to not be working like it should be. 
• Their immune systems did not respond to one of the normal childhood vaccines, PCV-7 specifically. This vaccination offers protection against ear infections, sinusitis, pneumonia, meningitis and blood infections. It is given in 4 doses - at 2 months, 4 months, 6 months and 12-15 months. Once you've completed the 4 dose series, you can receive PCV-13 (protection against an additional 6 strains of pneumococcal bacteria). According to immunology, after 3 doses, a child should have adequate protection. Pierce and Brice both received 4 doses of PCV-7 and Brice received 1 dose of PCV-13.
  They each had bloodwork to look at their titers (antibodies in the blood reflective of past exposure to an antigen - or something that the body did not recognize as being a part of itself). The test looked at 14 different pneumococcal strains (the most common strains). Pierce showed protection against 2/14 and Brice was 1/14. Even without the respective 4 and 5 vaccines they each received, their levels should have been higher given their past history with infections.
• IVIG - this is a type of therapy that can be used for many different health conditions, one of which is immunodeficiency. IVIG = Intravenous Immunoglobulin is basically IV infusion of antibodies. I explained the process a little more HERE

Okay, I hope that clarified things a little more :) Now onto updates ---

• Brice --- presently on a prophylactic dose of 250mg Amoxicillan once a day (for headaches, tender sinuses upon palpation , purple under eyes). His Memory B Cell function came back low (labs are in the car but I will post when I can). On a scale of 8-19, he was a 4 and his IgM memory was a 9 (scale of 10-19). If his titers come back low, he will start IVIG.
• Pierce --- presently on a prophylactic dose of 480mg Amoxicillan once a day (poor Pierce starts with fever no more than 2 days after he completes a course of antibiotics - previous courses include 10 days of Omnicef, 3 weeks of Augmentin). His Memory B Cell function came back low. On a scale of 8-19, he was a 2 and his IgM memory was a 4 (scale of 10-19). If his titers come back low, he will start IVIG.

About Memory B Cell functioning, as I previously mentioned,  it's experimental. It is something that Children's Immunology is doing research on. They have a general threshold set (8-19) but it is not age-specific (that is what they're still researching). Since memory b cell functioning is reliant upon previous exposure to a microbe, the theory is that it is going to be lower for younger individuals. But it's a catch 22 because both the boys have a rather extensive history of infection. Those results are not for diagnostic purposes but they will be used, with all of their other labs, infection history and clinical findings, as support for insurance authorization for IVIG.

Brice also had bloodwork to check for some of the more common food allergens. He showed a slight issue with wheat but not as a "true" allergy. Given his GI issues, the gameplan is to treat this empirically. We will remove wheat/gluten for a 3 week trial - if we see improvement with his stool and belly pains, we know it's real. If we don't, then we re-introduce wheat/gluten. His level could be the beginning of an issue or it could be nothing.

And because my memory stinks lately and I use my blog for referencing at doctor appointments...
Brice - 92.5cm ( 23rd% ) and 13.6kg ( 34th% )
Pierce - 80.6cm ( 19th% ) and 10.6kg ( 12th% )

Check back on Thursday for our update - have a Happy Tuesday!