Evaluation of neurological behaviour in late-preterm newborn infants using the Hammersmith Neonatal Neurological Examination.

AIM: We hypothesise that clinically well late-preterm infants (LPI) (34+0 -36+6 weeks) are neurologically more immature than their term counterparts, and this immaturity persists even when these infants reach term-corrected age (TCA). The primary aim of our study was to characterise and contrast the neurodevelopmental profile of well LPI with full-term infants (FTI) (39+0 -41+6 weeks) using the Hammersmith Neonatal Neurological Examination (HNNE). Our secondary aim was to obtain local reference ranges for the 34 items in the HNNE in an Asian-dominant population. METHODS: LPI were assessed at two time points: 12-72 h of life and at TCA of 39+0 -41+6 weeks, while FTI were assessed at 12-72 h of life using the HNNE. Each of the 34 items on the HNNE was assigned an optimality score (OS) of 0, 0.5 or 1, totalling up to 34. A quantitative comparison of the neurobehavioral patterns was made using two-sample t-tests. RESULTS: A total of 212 infants (79 LPI and 133 FTI) were recruited. Mean OSs for LPI and FTI at birth were (25.11 ± 3.36)/34 and (31.19 ± 1.50)/34, respectively, with a mean difference of 6.08 (P value <0.0001). The mean OS for LPI on reaching TCA was (28.91 ± 2.30)/34, with a mean difference of 2.28 (P value <0.0001). Reference OSs for the 34 items on the HNNE were also obtained. CONCLUSION: LPI are more immature than their term counterparts even on reaching TCA, with discrepancies most apparent in 'tone' and 'movement'. We provide reference OSs of 34 items in the HNNE for infants in an Asian-dominant population.

Minimal enteral nutrition during neonatal hypothermia treatment for perinatal hypoxic-ischaemic encephalopathy is safe and feasible.

AIM: The safety and efficacy of enteral feeding during hypothermia treatment following hypoxic-ischaemic encephalopathy has not been studied before, resulting in variations in practice. Our study compared the benefits and safety of both early minimal and delayed enteral feeding during hypothermia treatment. METHODS: Our retrospective cohort study, from January 2009 to December 2011, compared a Swedish cohort, who received early enteral feeding during hypothermia, and a UK cohort, who received delayed enteral feeding. RESULTS: In Sweden (n = 51), enteral feeds were initiated at a median of 23.6 h and full oral feeding was achieved at 9 days (range 3-23). In the UK (n = 34), the equivalent figures were 100 h and 8 days (range 3-13) (p = 0.01). Both groups achieved enteral feeding at a median 6 days. The median length of hospital stay was 13 days in Sweden and 10 days in the UK (p = 0.04). More babies were fully breastfeeding or breastfed and bottle-fed at discharge in Sweden (85%) than the UK (67%) (p = 0.08). There were no significant differences between the two groups regarding adverse events. CONCLUSION: Early minimal enteral feeding during hypothermia proved feasible, with no significant complications. Delayed enteral feeding did not affect time to full enteral feeding.

Barotrauma-associated posterior tension pneumomediastinum, a rare cause of cardiac tamponade in a ventilated neonate: a case report and review of the literature.

UNLABELLED: Ventilation-associated neonatal barotrauma comprises a spectrum of conditions including pneumothorax, pulmonary interstitial emphysema, pneumopericardium and pneumomediastinum. Whilst pneumothorax is common, mediastinal and particularly posterior mediastinal air collections are rare. We report the case of a neonate, presenting with life threatening pericardial tamponade secondary to posterior tension pneumomediastinum. The infant was successfully resuscitated with an emergency left lateral thoracotomy and chest drain insertion. We believe this to be the first such case reported in the literature. We discuss aspects of pathophysiology, diagnosis and management relating to posterior pneumomediastinum. CONCLUSION: Posterior pneumomediastinum is rare, but can potentially cause fatal tamponade. Such cases must be managed in a tertiary centre where cardiology and surgical expertize are available.

Acute intestinal obstruction as a presentation of cystic fibrosis in infancy.

Intestinal obstruction and dysmotility occur throughout life in cystic fibrosis but rarely present as an acute obstruction beyond the neonatal period. We describe the previously unreported occurrence of acute obstruction of the sigmoid colon as a presenting feature of cystic fibrosis (CF) in a 6-month infant.

Parental perceptions of hypothermia treatment for neonatal hypoxic-ischaemic encephalopathy.

AIMS: Hypothermia Treatment (HT) is now the standard care for neonatal hypoxic-ischaemic encephalopathy (HIE). We conducted a survey to explore parental perceptions of HT as there is little information about this in the current literature. METHODS: Postal questionnaire survey included families (n = 51) whose babies received HT at Princess Anne Hospital, Southampton, UK, with 23 questions covering communication, clinical management, follow-up, and care in general. Statistical analysis of descriptive and analytical tests were done using Minitab 16. RESULTS: The response rate was 60.8%. All parents had concerns amongst which perceptions of pain and distress were described by 41%. Temporary concerns about bonding were common (83.8%), more so in babies transferred from other hospitals (p = .04). Only 61.3% felt they had a good understanding of HT. The need for improvements in the quality (71%) and frequency of communication (48.3%) were also highlighted. CONCLUSIONS: Parents were worried about pain and distress, bonding and about outcomes after HT. Consistency in communication, regular updates, involvement of parents in decision making, strong support mechanisms and balanced discussions about long term outcomes at an early stage are of high importance to families whose babies undergo HT.

Principles of Clinical Management of Patent Ductus Arteriosus in Extremely Preterm Neonates.

The clinical management of a patent ductus arteriosus (PDA) in preterm newborns is a controversial topic, and despite nearly three decades of research, varying opinions remain. This dilemma stems from uncertain causal linkage between PDA and neonatal comorbidities, as well as the lack of clear evidence showing that benefits of treatment outweigh risks. There has been a general shift in the management of PDA in preterm newborns from early and aggressive closure to a more conservative approach of watchful waiting and spontaneous closure. However, a firm recommendation cannot be made due to a lack of randomized controlled trials validating either treatment strategies. Although cyclooxygenase inhibitors, namely indomethacin and ibuprofen, are approved pharmacological treatments for PDA, there is a need to explore alternative medical therapies in view of lack of clinical response in many newborns and concerns over adverse effects. One such recent interest is the use of acetaminophen as a pharmacological agent. This present review tries to address the questions at hand, integrate the current evidence, highlight the principles of PDA management in preterm newborns, and suggest areas for possible future research.

Successful percutaneous ablation of ventricular tachycardia in congenitally corrected transposition of the great arteries, a case report.

Ventricular tachycardia (VT) is rarely recognized in patients with congenitally corrected transposition of the great arteries (CCTGA). We describe a 48-year-old woman with CCTGA, systemic atrioventricular valve replacement for Ebsteinoid malformation of the valve, ventricular dysfunction and ventricular tachycardia related to the previous surgical scar. The patient had successful non-contact mapping and radiofrequency ablation of the offending tachycardia substrate.