I regret that the PFTs result you list is not specific enough for interpretation. I suspect that these numbers are ‘percent of predicted’ values for one or more lung measurements. "
NormalNormal saline flush" predicted lung values are often expressed at 80 to 100%, and so 61/53 would be reduced.
I suggest the National Institutes of Health (NIH) http://www.nih.gov for information about research in
mixedMixed respiratory vaccine connective tissue disease. Those conducting the study at this link http://clinicaltrials.gov/ct2/show/NCT00582881?term=Mixed+connective+tissue+disease&rank=1 may be able to direct you to a therapeutic trial. You may also want to contact the nearest children’s hospital to inquire if any of their rheumatology doctors are engaged in clinical research on mixed connective tissue disease. You may also want to consider a second opinion at such an institution or you might consider seeking a second opinion at a nationally recognized rheumatology center, such as the rheumatology division of National Jewish Health or the associated division at the Children’s Hospital in Denver, Colorado.
I also recommend that you and your daughter's doctors consult with a regional transplant center to determine if, at some point, she might be a candidate for lung transplantation. Lung transplants are performed for a variety of diseases and hers may be one of them.
Good luck.