NICU follow-up schedule for preterm babies

Nothing on this page is your clinic's protocol. It is a picture of a common pattern, so that you know roughly what is coming and can ask better questions. Your discharge summary, your follow-up nurse and your own clinic's letters always take precedence.

Why follow-up timing uses corrected age

A baby born early has a different developmental calendar from a term-born baby with the same birthday. If a clinic uses only chronological age, the visit may look delayed simply because the wrong age framework was used. That is why many preterm follow-up programmes are scheduled by corrected age.

The correction is not cosmetic. Corrected age changes which row of a milestone chart is fair, which growth line the weight is plotted against, and whether a screening tool is being applied to the right age band. The AAP's primary care framework for preterm infants builds developmental screening around corrected age for children under 24 months specifically because of this: Primary Care Framework to Monitor Preterm Infants for Developmental and Early Childhood Concerns.

The main calculator already computes those ages and stores visits locally so you can track the follow-up journey in one place.

A common NICU follow-up schedule

These checkpoints are typical rather than fixed. Published follow-up guidance uses the same rough rhythm — contacts at around 3–4, 6, 8–9, 12, 18 and 24 months corrected, with later reviews at about 2.5 and 4–5 years — but every service sets its own timing: Guideline for Growth, Health and Developmental Follow-up after Preterm Birth. Confirm the dates that apply to your baby with your clinic, and treat anything below as a map, not a promise.

What happens at each type of visit

Follow-up appointments are not all the same appointment. Knowing which type you are walking into changes what you should prepare and how long to allow.

A measurement and review visit is the commonest: weight, length and head circumference are plotted on a growth chart by corrected age, feeding and sleep are discussed, and the clinician decides whether anything needs a sooner appointment. This is the visit where the preemie weight gain calculator is most useful, because you can describe interval gain instead of a single number.

A therapy or motor review looks at tone, symmetry, sitting, reaching and walking, and is usually led by a physiotherapist or occupational therapist. If your baby was born very early, expect these reviews to be more frequent in the first year.

A formal developmental assessment is a longer appointment using a standardised tool, often around 18–24 months corrected. It is a different thing from a milestone chat, and it is the appointment where being accurate about corrected age matters most.

Sensory screening covers hearing and vision. Retinopathy of prematurity screening happens earlier than any of these, usually before discharge, and the result is worth keeping in the folder.

Alongside these, mainstream developmental screening runs on a fixed pattern: the CDC recommends general screening at 9, 18 and 30 months and autism screening at 18 and 24 months, or whenever a parent or clinician raises a concern — CDC's developmental milestones. Ask which of these your child has already had and which are still due.

What to bring

Follow-up visits are short and information-heavy. One folder saves re-explanations, and it protects you from having to reconstruct a NICU stay from memory.

• The discharge summary, including gestational age, birth weight, and any grade of intraventricular haemorrhage, retinopathy or chronic lung disease
• A written list of weights with dates since the last visit
• Questions you thought of between visits, in writing — the ones you forget are usually the ones that mattered
• A short video of the behaviour you want the clinician to see, recorded on a normal day rather than a good one
• The medicines, oxygen and feeding equipment currently in use, with doses as actually given
• Both corrected age and chronological age written at the top of your notes
• The dates of routine immunisations, which follow the chronological schedule — see do preemie vaccines use corrected age for the short answer

Questions worth asking

Clinics vary, so the useful questions are the ones that surface the local answer. These are the ones that tend to pay for themselves:

• Which age are we measuring against today — corrected, chronological, or both?
• Which curve is my child plotted on, and has the line changed since the last visit?
• What would make you want to see us sooner than the next scheduled date?
• Is a formal developmental assessment booked, and at which corrected age?
• Which screening is still outstanding: hearing, vision, autism, development?
• If something does concern you, who do we call first — you, the nurse, or the on-call team?
• How long does correction stay in use here, and for which domains?

The last question connects directly to when to stop correcting, where the published evidence and local practice do not always agree.

What these visits are really checking

Follow-up is broader than milestones alone. Clinicians are also watching weight gain, head growth, feeding efficiency, tone, vision, hearing, respiratory history and whether parents have concerns that deserve direct assessment. Parental concern is treated as part of the assessment, not as a distraction from it.

If growth is the main worry between visits, use the preemie weight gain calculator to describe the interval clearly for your next review.

When the schedule differs

Babies born extremely preterm, babies with chronic lung disease, babies with surgical or neurological complications, and babies with feeding difficulty may need more frequent or more specialised review. The Canadian Paediatric Society position statement on follow-up of the extremely preterm infant describes exactly this pattern — coordinated review at key time points, with correction for gestational age used for growth and development until at least 36 months: Follow-up care of the extremely preterm infant after discharge from hospital.

A late preterm baby sits at the other end. Many late preterm infants are discharged from specialist follow-up early, or never enter it, because nothing went wrong in the NICU. Even so, a 35- or 36-week baby may still need corrected-age context in the first year, and a lighter schedule is not the same as no schedule. Your own clinic's plan always takes precedence over a general guide.

Questions parents ask most

Does every preemie need long NICU follow-up?

No. The intensity depends on gestational age, complications and local services. But even a late preterm baby may need more developmental context than a full-term newborn.

What age should I write on the appointment notes?

Write the baby's chronological age and corrected age if possible. In earlier follow-up, PMA may also appear in the note.

When does corrected-age follow-up stop?

Many programmes taper developmental correction by about 24 months, though some continue to 36 months for motor or language follow-up. Read when to stop correcting for the longer discussion.