Intellectual Functioning of Children With Isolated PRS, PRS-Plus, and Syndromic PRS

OBJECTIVE

Describe the intelligence quotient (IQ) of children with Pierre Robin sequence (PRS).

DESIGN

Prospective cohort study.

SETTING

Neurodevelopmental follow-up clinic within a hospital.

PATIENTS

Children with PRS (n = 45) who had been in the Neonatal Intensive Care Unit (NICU) were classified by a geneticist into 3 subgroups of isolated PRS (n = 20), PRS-plus additional medical features (n = 8), and syndromic PRS (n = 17) based on medical record review and genetic testing.

MAIN OUTCOME MEASURE

Children with PRS completed IQ testing at 5 or 8 years of age with the Wechsler Preschool and Primary Scale of Intelligence, Third Edition (WPPSI-III) or Fourth Edition (WPPSI-IV) or the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV) or Fifth Edition (WISC-V).

RESULTS

IQ scores were more than 1 to 2 standard deviations below the mean for 36% of the overall sample, which was significantly greater compared to test norms (binomial test P = .001). There was a significant association between PRS subtype and IQ (Fisher's exact P = .026). While only 20% of children with isolated PRS were within 1 standard deviation below average and 35% of children with syndromic PRS were below 1 to 2 standard deviations, 75% of PRS-plus children scored lower than 1 to 2 standard deviations below the mean.

CONCLUSION

PRS subgroups can help identify children at risk for cognitive delay. The majority of children with PRS-plus had low intellectual functioning, in contrast to the third of children with syndromic PRS who had low IQ and the majority of children with isolated PRS who had average or higher IQ.

Functional measures on PEDI are associated with BSID-3 scales at 2 years, following neonatal surgery

BACKGROUND

Neonates requiring early surgical intervention for major non-cardiac congenital anomalies are at high risk of adverse neurodevelopmental outcomes. Early recognition of potential neuro-developmental delay is critical to facilitate access to early childhood intervention services and therefore maximise the functional capabilities of these children.

AIMS

This study aims to compare Bayley's Scales of Infant and Toddler Development (BSID-3) and the Paediatric Evaluation of Disability Inventory (PEDI) as early screening tools in predicting neuro-developmental disability across multiple domains. In addition, it looks at determining which pre, peri and post-operative risk factors lend themselves to more adverse outcomes.

STUDY DESIGN

Retrospective cohort study.

SUBJECTS

Neonates requiring surgical intervention at the Royal Children's Hospital from 2012 to 2018 who subsequently underwent neurodevelopmental assessment at 2 years of age.

OUTCOME MEASURES

The main outcome was the relationship between performance on the PEDI compared with the BSID-3, in 2-year-olds following neonatal surgery.

RESULTS

Parent -reported functional measures across all domains on PEDI strongly related to the more formal measures of cognition, language, and motor development assessed on BSID-3 (p < 0.05).

CONCLUSIONS

The questionnaire-based PEDI tool could be considered a reliable replacement to the formal Bayley (BSID-3) scale in low-risk infants and provide a more accessible means of assessment where there are deficiencies in availability of suitably trained clinicians or limited resource centres.

Impact of Comorbid Prematurity and Congenital Anomalies: A Review

Preterm infants are more likely to be born with congenital anomalies than those who are born at full-term. Conversely, neonates born with congenital anomalies are also more likely to be born preterm than those without congenital anomalies. Moreover, the comorbid impact of prematurity and congenital anomalies is more than cumulative. Multiple common factors increase the risk of brain injury and neurodevelopmental impairment in both preterm babies and those born with congenital anomalies. These include prolonged hospital length of stay, feeding difficulties, nutritional deficits, pain exposure and administration of medications including sedatives and analgesics. Congenital heart disease provides a well-studied example of the impact of comorbid disease with prematurity. Impaired brain growth and maturity is well described in the third trimester in this population; the immature brain is subsequently more vulnerable to further injury. There is a colinear relationship between degree of prematurity and outcome both in terms of mortality and neurological morbidity. Both prematurity and relative brain immaturity independently increase the risk of subsequent neurodevelopmental impairment in infants with CHD. Non-cardiac surgery also poses a greater risk to preterm infants despite the expectation of normal in utero brain growth. Esophageal atresia, diaphragmatic hernia and abdominal wall defects provide examples of congenital anomalies which have been shown to have poorer neurodevelopmental outcomes in the face of prematurity, with associated increased surgical complexity, higher relative cumulative doses of medications, longer hospital and intensive care stay and increased rates of feeding difficulties, compared with infants who experience either prematurity or congenital anomalies alone.

Cognitive, academic, and behavioral functioning in school-aged children born with esophageal atresia

PURPOSE

To characterize cognitive, academic, and behavioral functioning in children who underwent neonatal surgical repair of esophageal atresia (OA) and compare outcomes according to clinical characteristics (presence of additional congenital anomalies, longer hospitalization, and prematurity).

METHODS

Intellectual, language, attention, and executive functioning were assessed in 71 5-year-olds and 72 8-year-olds born with OA. At 8 years, memory and academic skills were also assessed. Parents rated children's executive functioning and behavior via questionnaires. Outcomes were compared to normative data and within subgroups of the sample.

RESULTS

Intellectual functioning varied depending on the assessment tool, with some evidence of lower than expected intellectual development in children with OA. At 5 years, children with OA showed age-appropriate language and self-regulation, but reduced verbal attention. At 8 years, the OA group had lower than expected sustained attention, divided attention, and mathematics but typical memory and literacy. Parents consistently reported increased working memory difficulties. Other executive functioning and behavioral symptoms were transiently observed. Findings did not consistently differ according to clinical characteristics.

CONCLUSIONS

Children with OA may be at risk of transient and persisting cognitive difficulties, particularly in attention and working memory. Difficulties were not strongly associated with additional congenital anomalies, longer hospitalization, or prematurity.

LEVEL OF EVIDENCE

Level IV.

Outcome of vein of Galen malformation presenting in the neonatal period

OBJECTIVE

Vein of Galenaneurysmal malformation (VGAM) is a rare but important congenital malformation presenting to neonatal intensive care units (NICUs), and with a change from surgical to endovascular management, survival for this condition has improved. However, there is little reported about the medical management decisions of infants with this condition and the associated long-term neurodevelopmental outcomes. We aim to report a single centre experience of both acute treatment and long-term outcomes of VGAM for those infants admitted to our NICU soon after birth.

DESIGN

Retrospective cohort study over a 15-year period from 2001 to 2015 inclusive.

SETTING

A quaternary NICU at The Royal Children's Hospital, Melbourne, Australia.

PARTICIPANTS

24 newborn infants referred for management of VGAM. There were no eligibility criteria set for this study; all presenting infants were included.

INTERVENTIONS

None.

MAIN OUTCOMES MEASURES

Clinical neuroimaging data were gathered. Surviving children were formally assessed with a battery of tests administered by a neuropsychologist and occupational therapist/physiotherapist at various ages across early to middle childhood.

RESULTS

Fifteen neonates with VGAM did not survive beyond their NICU admission. 10 of these were not offered endovascular intervention. Of the nine surviving infants, only one had a normal neurodevelopmental outcome.

CONCLUSIONS

The mortality of VGAM presenting in the neonatal period was high, and rates of normal neurodevelopmental outcome for survivors were low. These findings contribute to our understanding of which neonates should be treated and highlights the importance of providing clinical neurodevelopmental follow-up to survivors beyond their infant years.

Associations of Neonatal Noncardiac Surgery with Brain Structure and Neurodevelopment: A Prospective Case-Control Study

OBJECTIVE

To examine the associations of neonatal noncardiac surgery with newborn brain structure and neurodevelopment at 2 years of age.

STUDY DESIGN

Infants requiring neonatal noncardiac surgery for congenital diaphragmatic hernia, esophageal atresia, or anterior abdominal wall defect were compared with infants who did not require surgery, matched for sex, gestation at birth, and postmenstrual age at magnetic resonance imaging. Cerebral magnetic resonance imaging was performed at a mean (SD) postmenstrual age of 41.6 (1.7) weeks. Images were assessed qualitatively for brain maturation and injury and quantitatively for measures of brain size, cerebrospinal fluid spaces, and global abnormality. Neurodevelopment was then assessed at 2 years using the Bayley Scales of Infant and Toddler Development, 3rd edition.

RESULTS

Infants requiring surgery (n = 39) were 5.9 times (95% CI, 1.9-19.5; P < .01) more likely to have delayed gyral maturation and 9.8 times (95% CI, 1.2-446; P = .01) more likely to have white matter signal abnormalities compared with controls (n = 39). Cases were more likely to have higher global abnormality scores, smaller biparietal diameters, and larger ventricular sizes than controls. Infants who had surgery had lower mean composite scores in the language (mean difference, -12.5; 95% CI, -22.4 to -2.7) and motor domains (mean difference, -13.4; 95% CI, -21.1 to -5.6) compared with controls.

CONCLUSIONS

Infants requiring neonatal noncardiac surgery have smaller brains with more abnormalities compared with matched controls and have associated neurodevelopmental impairment at 2 years of age. Prospective studies with preoperative and postoperative imaging would assist in determining the timing of brain injury.