Table 3.
Baseline and Post-Transplant Laboratory Monitoring | |
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Time interval of evaluation: baseline; post-transplant at 3 months ± 2 weeks; 6 months ± 4 weeks; 12 months ± 4 weeks; years 2-5 post-transplant every 12 months ± 6 months; beyond five years post-transplantation every 3 years ± 1 year after the first five years. | |
Recommended Studies | |
Quantitative immunoglobulins |
IgG, IgA, IgM with notation as to whether the patient is currently on IVIG and if so the dose and date of last administration |
Isoagglutinins | Anti-A and anti-B titers (include patient and donor blood type) |
Immunization | Provide vaccine used, pre and post (include time following immunization) titers, information regarding use of IVIG and if on IVIG replacement therapy, provide timing of the pre and post titers relative to IVIG administration |
Lymphocyte proliferation |
Mitogen PHA: provide percent of normal response = the patient raw data cpm (or dpm) of stimulated cells divided by the lowest cpm (or dpm) of the control (normal) response established for the performing lab Other mitogens including CD3 can be reported but are not essential |
Antigen (if performed) Tetanus: provide percent of normal response = the patient raw data cpm (or dpm) of stimulated cells divided by the lowest cpm (or dpm) of the control (normal) response established for the performing lab and date of last tetanus immunization Candida: provide percent of normal response = the patient raw data cpm (or dpm) of stimulated cells divided by the lowest cpm (or dpm) of the control (normal) response established for the performing lab | |
Flow cytometry | Testing for T cell and B cell surface antigens to be performed as follows; recommended to be performed centrally |
Surface antigens: The following should be evaluated at each interval and both percent and absolute number should be reported: CD3, CD4, CD8, CD19 (or CD20), CD3-/CD16/56 | |
Naïve T cells: CD4/CD45RA/CD45RO and CD8/CD45RA/CD45RO as three color studies reporting CD4+/CD45RA+ and CD8+/CD45RA+ (additional markers for naïve cells are not required but could be evaluated including CD27, CD31, CD62L and CCR7) | |
B cell subset: CD19/CD27/anti-IgD as a three color tube (report CD19+/CD27+/IgD+ and CD19+/CD27+/IgD−) | |
Thymopoiesis | TREC analysis: Guthrie card blood spot method will be performed centrally. |
Chimerism | T cell, B cell and myeloid chimerism should be performed at 12 months and the method used should also be reported. |
Genotyping | All patients not previously genotyped should have a genetic diagnosis established. |
Disease-specific assay | The following examples are provided For SCID or CID: Expression of disease-specific proteins in different lineages and at various developmental stages (eg, gamma chain in naïve vs. memory B cells in patients with mixed chimerism) Expression of MHC II molecules in different lineages (for Bare Lymphocyte Syndrome) For WAS: WAS protein levels For CGD: NADPH oxidase activity |