Long term follow-up after haematopoietic stem cell transplantation for mucopolysaccharidosis type I-H: a retrospective study of 51 patients.

Mucopolysaccharidosis type I-H (MPS I-H) is a rare lysosomal storage disorder caused by α-L-Iduronidase deficiency. Early haematopoietic stem cell transplantation (HSCT) is the sole available therapeutic option to preserve neurocognitive functions. We report long-term follow-up (median 9 years, interquartile range 8-16.5) for 51 MPS I-H patients who underwent HSCT between 1986 and 2018 in France. 4 patients died from complications of HSCT and one from disease progression. Complete chimerism and normal α-L-Iduronidase activity were obtained in 84% and 71% of patients respectively. No difference of outcomes was observed between bone marrow and cord blood stem cell sources. All patients acquired independent walking and 91% and 78% acquired intelligible language or reading and writing. Intelligence Quotient evaluation (n = 23) showed that 69% had IQ ≥ 70 at last follow-up. 58% of patients had normal or remedial schooling and 62% of the 13 adults had good socio-professional insertion. Skeletal dysplasia as well as vision and hearing impairments progressed despite HSCT, with significant disability. These results provide a long-term assessment of HSCT efficacy in MPS I-H and could be useful in the evaluation of novel promising treatments such as gene therapy.

Delivery room deaths of extremely preterm babies: an observational study.

OBJECTIVE: Many extremely preterm neonates die in the delivery room (DR) after decisions to withhold or withdraw life-sustaining treatments or after failed resuscitation. Specific palliative care is then recommended but sparse data exist about the actual management of these dying babies. The objective of this study was to describe the clinical course and management of neonates born between 22 and 26 weeks of gestation who died in the DR in France. DESIGN, SETTING, PATIENTS: Prospective study including neonates, who were liveborn between 22+0 and 26+6 weeks of gestation and died in the DR in 2011, among infants included in the EPIPAGE-2 study at the 18 centres participating in this substudy of extremely preterm neonates. Data were collected by a questionnaire completed by the professional caring for each baby. RESULTS: The study included 73 children, with a median (IQR) gestational age of 24 (23-24) weeks. Median (IQR) duration of life was 53 (20-82) min. All but one were both wrapped and warmed. Pain was assessed for 72%, although without using any scale. Gasping was described for 66%. Comfort medications were administered to 35 children (50%), significantly more frequently to babies with gasping (p=0.001). Mother-child contact was reported for 78%, and psychological support offered to parents of 92%. CONCLUSIONS: Non-pharmacological comfort care and parental support were routinely given. Comfort medication was given much more frequently than previously reported in other DRs. These data should encourage work on the indications for comfort medication and the interpretation of gasping.