TABLE 2.
Clinical Scenarios Along the SDM Spectrum in Pediatric Genomic Testing
| Clinician-Guided SDM | Blended (Clinician- and Parent-Guided) SDM | Parent-Guided SDM | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Oncology | Neurology | Pulmonary | Oncology | Neurology | Pulmonary | Oncology | Neurology | Pulmonary | |
| Clinical scenario | 3-y-old with new diagnosis of B-ALL | 2-mo-old with profound hypotonia, suspected spinal muscular atrophy | 2-mo-old with a positive newborn screen for cystic fibrosis and positive sweat test | 7-y-old with suspected relapse of rhabdomyo-sarcoma | 3-y-old with new epilepsy and normal brain MRI | 4-y-old with concern for primary ciliary dyskinesia | 3-y-old with new brain tumor | 7-y-old with severe intellectual disability | 2-mo-old child with unexplained respiratory failure and dysmorphic facies |
| Genetic/ genomic test |
Leukemia FISH panel on marrow sample | Single gene testing for SMN1 | Single gene testing for CFTR | Multigene cancer panel on tumor biopsy | Multigene epilepsy panel | Primary ciliary dyskinesia panel | Whole exome sequencing on paired tumor/ normal samples | Whole exome sequencing | Whole exome sequencing |
| Potential clinical utility | Risk stratify, optimize upfront treatment regimen | Initiate time-sensitive treatment | Initiate time-sensitive treatment | Identify targeted treatment | Identify targeted treatment (ie, optimal antiseizure medication) | Identify targeted therapies | Identify cancer predisposition syndrome, unlikely to impact current treatment | Identify etiology of intellectual disability, unlikely to impact current treatment | Identify etiology of respiratory failure, unlikely to impact current treatment |
| Suggested language to discuss testing with parenta | • “…we send this test for all children who we think might have this diagnosis…” | • “…we would recommend this test…” | • “…we have the option of sending this test if it is something you would like…” | ||||||
| • “…trying to identify particular a particular gene change (or changes) seen in this diagnosis…” | • “…hope to identify if genetic changes seen in other children with this diagnosis are present for your child….” | • “…we would send a sample of your child’s own healthy cells to look for gene changes…” | |||||||
| • “…this testing is time-sensitive…” | • “…this might identify a targeted therapy for your child…” | • “…it could tell us health information about your child or other family members…” | |||||||
| • “…this might change the treatment for your child…” | • “…could reveal a change that is in all of the cells in your child’s body…” | • “…we might learn information that has no effect on your child, information that we don’t fully understand, or not learn any new information at all…” | |||||||
| • “…might learn about your child’s or other family members’ risk for developing certain illnesses…” | • “…because the results are unlikely to change your child’s current care for this diagnosis, we recommend taking time to fully consider whether you are interested in this…” | ||||||||
B-ALL, B-cell acute lymphocytic leukemia.
These example phrases are intended to demonstrate possible ways, as part of a larger discussion, to clarify the parent’s role in a given decision and the purpose of the testing being discussed.