Follow-up after high-risk birth and NICU discharge — formative SAQs

SAQ 1 (10)

A former 26-week, 720-gram infant is now 5 months corrected age. The neonatal course included a grade 3 intraventricular haemorrhage, bronchopulmonary dysplasia with home oxygen, and laser treatment for retinopathy of prematurity. At today's visit the General Movements Assessment shows absent fidgety movements, the Hammersmith Infant Neurological Examination scores 38, and the head circumference has been static across the last two visits. The parents ask whether their baby is "going to be okay." [3]

1. Define corrected age and explain how you will apply it to this child's growth and developmental assessment. (2) [11] [12]
2. Interpret the absent fidgety General Movements, the Hammersmith score of 38, and the static head circumference, and state your diagnostic conclusion and its evidence base. (4) [3] [4] [5]
3. Outline the immediate management plan, including referral, intervention and investigation. (2) [5] [13]
4. Explain to the examiner how you will counsel the parents and what you will and will not promise. (2) [2] [9]

Model answer

Corrected age. Corrected age equals chronological age minus the number of weeks the infant was born before forty weeks. This infant was born fourteen weeks early, so at five months corrected age I plot growth on Fenton charts to a post-menstrual age of fifty weeks then WHO or INTERGROWTH-21st standards, and I interpret milestones as a five-month-old. I continue correcting for at least two years for milestones. [11] [12]

Diagnostic conclusion. Absent fidgety General Movements at nine to twenty weeks post-term carries a high positive predictive value for cerebral palsy (Prechtl 1997); a Hammersmith Infant Neurological Examination score under the 40 to 60 range at this age raises cerebral palsy concern (Novak 2017); and a static head circumference over two visits is a neurological red flag demanding urgent investigation rather than reassurance. Combined with the known grade 3 intraventricular haemorrhage, this triad meets the international criteria for an early, accurate diagnosis of cerebral palsy before six months corrected (Novak 2017; Morgan 2021). [3] [4] [5]

Immediate management. Refer urgently for goal-directed active motor-task-oriented early intervention per the Morgan 2021 guideline, because the window for motor plasticity is early; arrange a brain MRI if one is not recent and a full audiology and ophthalmology review; investigate the static head circumference (cranial imaging, metabolic consideration); and coordinate the multi-disciplinary team — physiotherapy, occupational therapy, speech-language, dietetics and the medical home. The Cochrane evidence supports a modest motor benefit of post-discharge early developmental intervention. [5] [13]

Counselling. I would explain in plain language that the early signs indicate a motor disorder consistent with cerebral palsy, that we will start therapy now to support movement and development, and that we will continue to assess thinking, language and behaviour through to school age. I would not promise a specific level of function, because outcome is probabilistic and depends on the evolving trajectory; I would commit to close, honest, longitudinal follow-up and to supporting the family, and I would avoid both false reassurance and a catastrophic framing. [2] [9]

SAQ 2 (10)

A former 25-week, 650-gram infant had an uncomplicated neonatal course apart from respiratory distress syndrome and is now two years corrected age. The Bayley-III cognitive composite is 95, the language composite is 92, and the motor composite is 98. The parents are reassured and ask whether their child can now be discharged from follow-up. [2]

1. Interpret the Bayley-III composite scores against the population reference (mean 100, SD 15). (2) [2]
2. Explain why discharging this child from follow-up at two years would be a mistake, and cite the evidence for the late-emerging burden. (4) [2] [9] [10]
3. Outline the corrected-age follow-up plan from now to school age, naming the assessment focus at each point. (2) [1] [8]
4. State the sensory follow-up that must continue or be confirmed complete. (2) [7]

Model answer

Bayley interpretation. Bayley-III composites have a mean of 100 and a standard deviation of 15. A composite under 70, more than two standard deviations below the mean, indicates significant delay. This child's cognitive, language and motor composites are all within the average range at two years corrected, so there is no major impairment at this point. [2]

Why not discharge. The largest population-level burden of extremely preterm birth is not cerebral palsy or severe cognitive impairment but school-age learning difficulty, attention-deficit and executive dysfunction. The EPICure follow-up (Marlow, NEJM 2005) showed persistent cognitive, executive and behavioural difficulties at six years, and Hack's work confirmed behavioural morbidity at eight years, even in children with average early scores. Roughly half of extremely preterm survivors need educational support. A single normal early Bayley score does not close the file; the late-emerging signal will be missed if follow-up stops at two years. [2] [9] [10]

Follow-up plan to school age. Continue corrected-age surveillance: a review at three to four years assessing language, behaviour and social development with ASQ and milestone checks; a formal cognitive and executive assessment at four to six years (school age) including attention and learning, with a plan for educational support if needed; and ongoing vision and hearing review. The family and the school need to know that learning and behavioural support may be required. [1] [8]

Sensory follow-up. Retinopathy of prematurity follow-up must be confirmed complete to retinal vascular maturity per the AAP and American Academy of Ophthalmology schedule for any infant with a birthweight under 1500 g or gestational age of 30 weeks or less. Hearing surveillance continues beyond the newborn AABR screen because late-onset, progressive or auditory neuropathy loss can be missed; I would confirm a recent, normal audiology assessment before considering sensory surveillance closed. [7]