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Published on: November 7, 2020
Liver transplantation during infancy: No increased rate of neurological complications
Markus Ameres1, Michael Melter1, Robert Zant1
1KUNO University Children's Hospital Regensburg, Bavaria, Germany.
Insights
Pediatric liver transplantation (pLT) in young children rarely leads to neurological complications (NCs), with new-onset seizures being the most common. The prognosis for seizures in survivors is excellent, and NCs do not significantly impact survival rates in this age group.
Area of Science:
- Pediatric Hepatology
- Pediatric Neurology
- Transplantation Medicine
Background:
- Pediatric liver transplantation (pLT) is a vital treatment for end-stage liver and metabolic diseases in children.
- Neurological complications (NCs) are a concern post-pLT, particularly in younger, more vulnerable populations.
- Limited data exists on NCs in infants under 24 months undergoing pLT.
Purpose of the Study:
- To investigate the incidence and types of neurological complications (NCs) in children under 24 months following pediatric liver transplantation (pLT).
- To identify potential risk factors associated with NCs in this specific pediatric cohort.
- To evaluate the outcomes and prognosis of NCs in very young children post-pLT.
Main Methods:
- Retrospective study evaluating 40 children aged 19 days to 22 months who underwent pLT.
- Analysis of neurological complication types and associated clinical data.
- Statistical analysis to identify significant risk factors for NCs.
Main Results:
- Neurological complications (NCs) occurred in 20% (8/40) of patients.
- New-onset seizures were the primary NC, observed in all affected patients.
- Significant risk factors included hypothermic circulatory arrest (HAT), prolonged surgery, retransplantation, and duration of catecholamine, ventilation, and sedation therapies.
- The 3-year mortality rate was 10% (4/40 patients).
Conclusions:
- The incidence of NCs in children under 24 months post-pLT is comparable to older pediatric populations.
- New-onset seizures are the main NC, with an excellent prognosis and low risk of epilepsy in surviving infants.
- NCs did not significantly affect mortality or survival in this very young patient group.
Abstract:
pLT is a highly standardized therapy for children with end-stage liver disease and liver-based metabolic diseases. However, NCs after transplantation occur and especially younger children are considered as more vulnerable and susceptible to NCs. Up to now, detailed data particularly for the very young age group do not exist. We therefore retrospectively studied NCs in children after pLT under age of 24 months. Forty children aged between 19 days and 22 months were evaluated according to type of NC and potential risk factors. NCs occurred in 8/40 patients (20%). All experienced new-onset seizures and in 1/6 surviving patients, seizures evolved into epilepsy. Other NCs were intracerebral abscess (1/8 patients) and subdural hemorrhage (1/8 patients). The overall 3-year mortality rate was 10% (4/40 patients). Significant risk factors for NCs and therefore seizures were HAT (P = 0.020), total surgery time (P = 0.009), retransplantation (P < 0.001), period of catecholamine therapy (P = 0.024), period of mechanical ventilation (P = 0.014), and period of sedation (P = 0.010). Our study is the first to provide detailed information on NCs after pLT in children under 24 months of age. The incidence of NCs in this particular group of very young patients was not increased compared to previously published data of children of all ages. Main NC was new-onset seizure. In the surviving infants, prognosis of seizure was excellent and the risk of developing epilepsy was low. Even more, the occurrence of NCs did not significantly affect mortality or survival in this particular age group.
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