Outcomes and resource usage of infants born at ≤ 25 weeks gestation in Canada

Objectives: To determine the outcomes and resource usage of infants born at ≤ 25 weeks gestational age (GA). Methods: Retrospective study of infants born between April 2009 and September 2011 at ≤ 25 weeks\u27 GA in all neonatal intensive care units in Canada with follow-up in the neonatal follow-up clinics. Short-term morbidities, neurodevelopmental impairment, significant neurodevelopmental impairment, and resource utilization of infants born at ≤ 24 weeks were compared with neonates born at 25 weeks. Results: Of 803 neonates discharged alive, 636 (80.4%) infants born at ≤ 25 weeks\u27 GA were assessed at 18 to 24 months. Caesarean delivery, lower birth weight, and less antenatal steroid exposure were more common in infants born ≤ 24 weeks as compared with 25 weeks. They had significantly higher incidences of ductus arteriosus ligation, severe intracranial hemorrhage, retinopathy of prematurity as well as longer length of stay, central line days, days on respiratory support, days on total parenteral nutrition, days on antibiotics, and need for postnatal steroids. Neurodevelopmental impairment rates were 68.9, 64.5, and 55.6% (P=0.01) and significant neurodevelopmental impairment rates were 39.3, 29.6, and 20.9% (P\u3c0.01) for infants ≤ 23, 24, and 25 weeks GA, respectively. Postdischarge service referrals were higher for those ≤ 23 weeks. Nonsurviving infants born at 25 weeks GA had higher resource utilization during admission than infants born less than 25 weeks. Conclusions: Adverse outcomes and resource usage were significantly higher among infants born ≤ 24 weeks GA as compared with 25 weeks GA

Conserved Genes Act as Modifiers of Invertebrate SMN Loss of Function Defects

Spinal Muscular Atrophy (SMA) is caused by diminished function of the Survival of Motor Neuron (SMN) protein, but the molecular pathways critical for SMA pathology remain elusive. We have used genetic approaches in invertebrate models to identify conserved SMN loss of function modifier genes. Drosophila melanogaster and Caenorhabditis elegans each have a single gene encoding a protein orthologous to human SMN; diminished function of these invertebrate genes causes lethality and neuromuscular defects. To find genes that modulate SMN function defects across species, two approaches were used. First, a genome-wide RNAi screen for C. elegans SMN modifier genes was undertaken, yielding four genes. Second, we tested the conservation of modifier gene function across species; genes identified in one invertebrate model were tested for function in the other invertebrate model. Drosophila orthologs of two genes, which were identified originally in C. elegans, modified Drosophila SMN loss of function defects. C. elegans orthologs of twelve genes, which were originally identified in a previous Drosophila screen, modified C. elegans SMN loss of function defects. Bioinformatic analysis of the conserved, cross-species, modifier genes suggests that conserved cellular pathways, specifically endocytosis and mRNA regulation, act as critical genetic modifiers of SMN loss of function defects across species

The Experiences of Fathers in a Family Integrated Care (FICare) Program

OBJECTIVE: To describe the experiences of fathers of infants born at 320/7 to 346/7 weeks’ gestational age admitted to a Level II neonatal intensive care unit (NICU) and enrolled in a randomized controlled trial evaluating the Alberta Family Integrated Care (FICare) program. METHODS: A descriptive phenomenology study using semi-structured interviews with 13 fathers and 24 father-written journal entries. FINDINGS: Fifteen themes were generated by triangulating data from interviews and journals: mental preparation, fear of the unknown, reassurance of medical care, level of communication, identifying the fathers role, parenting with supervision, effect of medical staff, effective communication, physical environment, perceived health of infant, balancing life, teamwork through adversity, preparing for discharge home, post-NICU medical care, and relationship to child. CONCLUSIONS: Fathers enrolled in the Alberta FICare program attributed their level of confidence and positive NICU experience that continued post-discharge to the attention and the care they received at the bedside.M.Sc