A new path to explore
What is the problem?
Survival rates for babies born very preterm—before 32 weeks of gestation—have improved significantly in recent decades. However, this progress also means that more babies are surviving with serious complications related to preterm birth.
In the United Kingdom, neonatal care is routinely funded until babies reach 44 weeks corrected gestational age (CGA). After this point, care transitions to paediatric services. For babies requiring ongoing intensive care, this may include admission to paediatric intensive care units (PICUs).
Despite these transitions, very little data is currently available on paediatric patients who move from neonatal intensive care units (NICUs) to PICU care.
van Hasselt TJ, Newman S, Kanthimathinathan HK, Davis PJ, Draper ES, Gale C, Battersby C, Seaton SE; United Kingdom Neonatal Collaborative and the Paediatric Critical Care Society Study Group (PCCS-SG). Transition from neonatal to paediatric intensive care of very preterm-born children: a cohort study of children born between 2013 and 2018 in England and Wales. Arch Dis Child Fetal Neonatal Ed. 2024 Dec 9:fetalneonatal-2024-327457. doi: 10.1136/archdischild-2024-327457. Epub ahead of print. PMID: 39653499.
Aim of the study
The authors wanted to use nationally linked data to understand the characteristics of very preterm children transitioning from neonatal care to PICUs in England and Wales as they approached term-corrected gestational age.
What did they do?
They used linked data from the National Neonatal Research Database and the Paediatric Intensive Care Audit Network (PICANet) to look at all babies born <32 weeks and admitted to neonatal units (NNUs) in England and Wales from 2013 to 2018 and identify babies who were transitioned to PICUs within England and Wales ≥36 weeks CGA. They also assessed Office for National Statistics mortality data.
What were the results?
Of 46,684 babies born <32 weeks and admitted to NNUs in England and Wales during the study period, 276 (0.6%) were transitioned to PICUs ≥36 weeks CGA.
Although absolute numbers per year were relatively small (~40-50), there was a trend towards increasing numbers of babies transitioning from 2013 to 2018.
The most common reason for transition was respiratory disease, accounting for 44%, followed by cardiovascular disease at 21%. Additionally, 19% of children had congenital anomalies.
Children who transitioned to PICU were followed up until the age of two to assess their care and outcomes. Among the 276 children transferred, 32 (12%) died, and 144 (59% of survivors) required further PICU admissions.
Of all PICU admissions, one-third of children (n=92) experienced at least one prolonged stay of 28 days or more, while one-quarter (n=70) required tracheostomy ventilation during their time in PICU.
The overall mortality rate, including deaths in any location after transition and before the age of two, was 22%.
What do the findings of this study mean?
There is a relatively small but potentially growing number of very preterm children who receive ongoing intensive care and transition from neonatal to PICU services.
Many of these children died before their second birthday, and results suggest that many have long-term health conditions, as shown by those children with long stays in PICU and tracheostomy ventilation.
To improve the care and experiences of children and their families, the results of this study suggest that transitioning infants may benefit from the early involvement of multidisciplinary teams, including medical complexity teams and parallel planning, considering the potential benefit of palliative care input where the outcome for children is uncertain.
Where do we go from here?
British Association of Perinatal Medicine has formed a working group to help transition care from neonates to paediatrics.
The Paediatric Critical Care Society (PCCS) has formed a Special Interest Group (SIG) on children with complex critical illness which will encompass a small (but growing) portion of the children who transition from NICU to PICU.
In addition to the PCCS SIG, a new national parental advisory group has been established for children with complex critical illnesses. Incorporating the family’s perspective is essential to ensuring that everything we do as professionals is guided by their voice.
There is no current unifying definitional term for ‘long-term health conditions,’ ‘children with medical complexity,’ or ‘multi-morbidity’ in children. Therefore, when children with multiple long-term illnesses receive care, it is recorded under each individual ailment without a comprehensive definition across various healthcare settings (such as community services, primary care, or hospitals).
The Roald Dahl Charity is currently working to establish a definition for children with medical complexity (CMC). Additionally, one of the authors is embarking on a pragmatic sub-definition creation for children with complex critical illnesses in critical care settings. This involves collaboration with the national parental advisory group and a team of experts. This sub-definition aims to identify the subset of CMC patients who require more intensive care, specifically at the level of PICU or HDU.
PICANet is expanding its scope to include long-term ventilation and high-dependency care. This enhancement will provide a more comprehensive understanding of the current care and management practices of medically complex children.
While considerable progress is being made to refine definitions and improve understanding of hospital-based care, addressing other aspects of healthcare is equally vital. Many families must navigate a complex system, moving between primary care, emergency departments, and multiple specialist appointments. They may also encounter varying levels of support in areas such as education, respite care, and hospices. These challenges highlight opportunities to use data to create a more unified and seamless pathway of care.
Together, we hope this can evolve and aid in the development of policy, pathways, and guidance within the NICU, PICU, and beyond to care for and champion this group of children to the best of our abilities.Â
And finally, a special note from the parent and author Suzy Newman
Parents are the constant in their child’s life and their expertise comes from their hours by the bedside, they may not know the medical terminology but will be able to tell if something is different or not right.
Listening to parents may help them to deal with the enormity of what they are going through and give them back some hope and purpose. Even in the darkest days the feeling of helplessness can be made better by being your child’s voice and their constant.Â
What I realise now is that I was the expert on my child and telling specialists when you think things aren’t right might just help them to give your child the best possible care they deserve. After all, we are all part of a team that is ultimately working towards the same goal.
References
van Hasselt TJ, Newman S, Kanthimathinathan HK, Davis PJ, Draper ES, Gale C, Battersby C, Seaton SE; United Kingdom Neonatal Collaborative and the Paediatric Critical Care Society Study Group (PCCS-SG). Transition from neonatal to paediatric intensive care of very preterm-born children: a cohort study of children born between 2013 and 2018 in England and Wales. Arch Dis Child Fetal Neonatal Ed. 2024 Dec 9:fetalneonatal-2024-327457. doi: 10.1136/archdischild-2024-327457. Epub ahead of print. PMID: 39653499.