Two Steps Forward, One Step Back

It seems like the nature of treatment that we are never able to quite get clear of things before we have a setback. We progress, things improve, and then something happens and we are back where we were a few months ago in terms of medications and precautions. It IS improvement in a big picture sense, but it’s bittersweet and stressful day to day.

Zoe is back on track now, and our worst fears have been put to rest. She does not have a recurrence of HLH, her graft came back at >98% again, the same as before and a clear sign that her transplant has taken and HLH is gone (forever we hope). The fear of a return of HLH was due to a rash that appeared very similar to an HLH rash, but the chimerism result reassures us that is not the explanation.

GvHD Rash before treatment

She does however have GvHD, which has required her to restart Tacrolimus and go on a short term run of Prednisolone, the old nasty steroid, again. Why she has GvHD was a big point of confusion to us given her chimerism results, so I will do my best to explain briefly.

Zoe has a new immune system, and that immune system is completely donor material. This is the result we want, since her old immune system was dysfunctional and susceptible to HLH. Her new immune system however has not yet come to terms with it’s new home, meaning her old body is still considered a threat to it to some degree. When left unsupressed, her new immune system attempts to fight her old body, causing the rashes and other GvHD symptoms.

We had gotten her off of almost all of her meds slowly over months of weaning, when the rashes started to appear. It seems that she is not quite ready to be off of them, so we have restarted the routine and we’ll see where she is in another 3 months or so.

There is a question of whether or not she will be ready to enter pre-school this fall, but I’ve been told by reliable sources — Zoe’s two teacher-grandparents — that she is too young to need to be in school anyway. Yes it was what we had planned and yes it would be helpful, particularly socially, but it’s not going to hold her back to wait another 6 months or year to be safe.

In the meantime, she is back to looking good and feeling good most days, which is a relief. We are going to finally be able to remove her port despite the complications of these past weeks, so that too is progress. At this point I’m wishing that we had started putting little patches on Zoe’s well-worn diaper bag for each medical scare, not unlike notches in a gunslinger’s holster or emblems on a jet fighter. She’d have them racked up by now.

 

 

The Spring of our Discontent

Where to begin? So much has happened in the past couple of months since my last update. First, an apology for a lack of news for those still following Zoe’s progress. My father became ill in April, and over the course of 2 months was in and out of the hospital. He lost his fight on May 26th, his health was just too poor and immune system too weak to fight off infections. A bitter irony, to be sure.

Michelle and I have been juggling the girls, work, and illness of one kind or another now for so long, it has become our norm. We’re still hoping for that break in the clouds though, when Zoe’s health is clear and the rest of the family remains in good health as well. Oh for the days of just work and family.

Zoe has generally done very well in recent months, with one unsettling exception. She has had rashes that have come and gone regularly, but seemed to get worse as we tapered her tacrolimus, which is the immuno-suppressent medication that she was expected to be on for approximately a year post-transplant. We’ve passed that point and so continued with her taper, but when we actually stopped it, the rashes seemed to get worse to the point where we felt we had to restart.

Michelle and the girls went to Duke on Monday, and their level of concern was high over the rashes. So high, there was even talk of a return of HLH, though we have to believe that’s not possible. The thinking until now was that the rashing was the result of a drug interaction (possibly sun sensitivity, a side-effect of tacrolimus) or something else, perhaps hay fever or an allergy. There is also a risk it could be GvHD.

Zoe’s last chimerism test to determine how much of her immune system is donor and how much was hers was very positive, >98% donor. As I understand the science, this should mean little or no GvHD, which is why everyone has continued to feel the rash was something else. It has proven persistent enough and has increased not decreased, so we have to find the cause.

We’ve ordered a new chimerism and we’re very anxious and scared about the results. Hopefully the result is the same and there is something else going on with her skin. If her graft has begun to dip, things will get much harder for Zoe again. She was due to have her port out in a week — that’s not looking like it will happen yet.

Zoe’s mood is good, she’s had a great few months learning to play with her sister and having new experiences since the end of flu season. She’s been able to play with new kids, visit lots of places she didn’t get to go this past year, and even spend a week at the beach (inside during the day). She looks good, not withstanding the rash, and when she’s not itchy she feels good.

We are trying to remain optimistic that we’re still on course and that this is just a confusing detour. Everything has gone nearly perfectly so far, it would be heartbreaking to have to restart any portion of her treatment, and a nightmare to contemplate another transplant and the huge risks that that would entail. I’ll update again when we have news to share.

 

httpv://www.youtube.com/watch?v=_Ja5VaPXyTg