Registries extend the value of local care by pooling data across centres and countries, clarifying natural history, post-treatment outcomes and unmet need at scale.
What should be monitored over time
While schedules vary by age and clinical context, comprehensive follow-up usually includes:
Growth & development
- Height, weight, head circumference (young children), pubertal staging
- Standardised developmental and cognitive assessments at agreed intervals
Cardiac
- Serial echocardiography and ECG
- Monitoring of valve disease, ventricular function and pulmonary pressures
Respiratory & ENT
- Sleep studies where indicated
- Airway review and lung function testing in older patients
Skeletal & orthopaedic
- Spine, hip and lower limb assessment
- Targeted imaging, pain and mobility review
Neurological & CNS
- Neurological examination
- MRI as clinically indicated; screening for myelopathy and hydrocephalus
Vision & hearing
- Ophthalmology and audiology follow-up
- Input to aids and education planning
Quality of life & function
- Patient- and family-reported outcomes
- Participation, independence and school attendance
Organising follow up in practice
Follow-up works best when delivered through coordinated multidisciplinary pathways.
- Run joint metabolic or metabolic–transplant clinics with core specialties present or readily available.
- Agree standard review intervals (e.g., 3–6 monthly in early childhood; annually or biennially in stable older patients), adjusted to need.
- Plan reviews around milestones such as pre/post-HSCT, school transitions, adolescence and transfer to adult services.
- Consolidate results into a single clinic summary that can also populate registry entries.
Patient & diagnosis
- Age at diagnosis, sex, family history
- Newborn screening status
- Biochemical/molecular results; phenotype classification
Treatment exposure
- HSCT: age, donor, conditioning, engraftment/chimerism
- ERT: start/stop dates, dosing, reasons for change
Organ & functional outcomes
- Cardiac, respiratory, skeletal, neurological assessments
- Neurocognition, education placement
- Mobility, ADLs, pain scores
Safety
- Transplant-related complications
- Serious infections and infusion reactions
- Late effects
Quality of life
- Patient-reported outcomes
- Participation and wellbeing measures
How healthcare professionals contribute
- Identify eligible patients and discuss registry participation with families.
- Obtain informed consent in line with ethical and regulatory frameworks.
- Enter or validate data at diagnosis, HSCT and defined follow-up points.
- Maintain accuracy and completeness, particularly for outcomes and adverse events.
- Use registry reports to benchmark outcomes and support shared decision-making.
Who does what?
Specialist nurses or data coordinators may support data entry; clinicians remain accountable for clinical accuracy and interpretation.
Consent, confidentiality and data quality
- Participation should be voluntary and clearly distinct from routine clinical care.
- Provide age-appropriate information and involve young people in decisions where possible.
- Comply with local and national requirements for data protection, pseudonymisation and sharing.
- Audit registry data periodically and update key fields (e.g., survival status, HSCT outcomes, major surgeries).
- Be transparent about how aggregated data may be used (publications, service planning, trial design).
Turning data into better care
- Benchmark local outcomes against pooled registry data to identify strengths and gaps.
- Use long-term outcome trends to counsel families about realistic expectations.
- Detect patterns of late complications that may prompt changes to surveillance protocols.
- Support business cases and resource planning within hospitals and networks.
Further detail from the source pages
Further detail3 sections
Registries and advanced treatment landscapes
- Established HSCT and ERT cohorts provide essential comparators for emerging gene and cell therapies.
- Registries can evolve to capture exposure and outcomes for new treatments, including safety and durability.
- Longitudinal datasets help define residual unmet need, informing trial design and regulatory dialogue.
- Consistent data capture across cohorts strengthens future comparisons.
Making follow up and registries workable
- Map clinic templates and letters to registry variables for efficient extraction.
- Use checklists or pro formas to avoid missed assessments.
- Define roles for data entry and protect time where feasible.
- Start with a focused core dataset and expand as capacity grows.
- Bring registry outputs into MDT meetings and teaching to demonstrate value.
Key messages on follow up and registries
- Lifelong, structured follow-up is essential to monitor organ function, neurocognition and quality of life after HSCT and ERT.
- Registries strengthen clinical care by aggregating outcomes across centres and countries.
- Clinicians are central to consent, data quality and meaningful interpretation.
- High-quality data improves counselling, service planning and evaluation of new therapies.
- Aligning clinic workflows with registry requirements supports sustainability.