Paeds · fetal-neonatal-and-perinatal
Apnoea of prematurity
Also known as Apnea of prematurity · Neonatal apnoea · Prematurity apnoea · Caffeine-responsive apnoea · Mixed neonatal apnoea
Fellowship guide to apnoea of prematurity — the definition and the three physiological types, the immature brainstem and chemoreceptor pathophysiology, the caffeine-first stepwise management, and the pitfalls that turn a self-limiting developmental phenomenon into a missed sepsis or an unsafe discharge.
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Target exams
Red flags
- New, worsening, or clustered apnoea after a stable period is late-onset sepsis or necrotising enterocolitis until proven otherwise — never assume immaturity alone
- Onset in a term infant is never apnoea of prematurity — pursue seizure, sepsis, metabolic disease, or airway obstruction
- Apnoea persisting beyond 43 to 44 weeks postmenstrual age is pathological and demands investigation for neurological or metabolic disease
- Treating every desaturation alarm as apnoea over-treats; treating new apnoea as reflex delays the septic work-up that matters most
- Reflex antireflux therapy for coincidental gastro-oesophageal reflux exposes the infant to unnecessary drugs with no proven benefit
- Caffeine toxicity — tachycardia, feed intolerance, jitteriness, seizures — is missed if dose is not reconciled at every prescription
Life stages
Care settings
Clinical exam formats
Board mappings
- Neonatology
- General and Community Paediatrics
- Apnoea of prematurity
- Neonatal and perinatal medicine competencies
- Recognition and management of neonatal respiratory compromise
- Current 2026 PREP curriculum — neonatal respiratory control and pharmacotherapy
- Clinical Applications
- Management of apnoea of prematurity and neonatal respiratory control
- Short Cases
- Neonatal scenarios
- 1. Good clinical care: Managing complexity
- Neonatology: Recognises and manages apnoea of prematurity
- Foundation of Practice (FOP)
- Applied Knowledge in Practice (AKP)
- Neonatology and perinatal medicine
- Clinical
- Neonatal assessment and management
- Communication
- General Pediatrics Content Outline — Domain 8: Neonatal conditions
- Neonatal respiratory disorders and apnoea
- General Pediatrics EPA: Manage neonatal apnoea
- Patient Care: Neonatal resuscitation and stabilization
- Medical Knowledge: Neonatal physiology and pharmacology
- Systems-Based Practice: safe discharge and follow-up of the preterm infant
- Medical Expert
- Neonatal respiratory management
- Pediatrics Core EPA — Managing neonatal apnoea
Overview & Definition
Walk onto the neonatal unit at three in the morning and the question is almost always the same. A baby born at 26 weeks, now four days old, has set off the alarm — the monitor shows a flat breathing trace and a heart rate falling toward 70. The team moves through it from memory: a flick of the foot, a gentle rub, and the numbers climb back. This is apnoea of prematurity, the most common breathing disorder of the very preterm infant, and the skill lies not in the rescue but in deciding when the pause is benign immaturity and when it is sepsis in disguise. [4]
The definition examiners want is precise and worth memorising word for word. Apnoea of prematurity is a cessation of breathing lasting 20 seconds or longer, or a shorter pause accompanied by bradycardia (a heart rate below 80 beats per minute), central cyanosis, or an oxygen desaturation below roughly 80 to 85 percent. It is a diagnosis of developmental immaturity, made in an infant born before 37 weeks, emerging after the first 24 hours of life, and expected to resolve by 43 to 44 weeks postmenstrual age. Crucially, it is a label you can only apply once you have excluded the things that mimic it. [4] [12]
The distinction that catches candidates is the one between apnoea and periodic breathing. Periodic breathing is a benign immature pattern of at least three pauses, each lasting more than three seconds, separated by less than 20 seconds of normal breathing, with no bradycardia and no colour change. You reassure the parents and do not treat it. Apnoea, by contrast, carries physiological consequences and warrants intervention, because the recurrent dips in oxygen that accompany it are what you are really trying to prevent. [4]
References12ShowHide
- [1]Schmidt B, Roberts RS, Davis P, et al Caffeine therapy for apnea of prematurity. N Engl J Med, 2006.PMID 16707748
- [2]Oliphant EA, Hanning SM, McKinlay CJD Caffeine for apnea and prevention of neurodevelopmental impairment in preterm infants: systematic review and meta-analysis. J Perinatol, 2024.PMID 38553606
- [3]Bruschettini M, Brattström P, Russo C, et al. Caffeine dosing regimens in preterm infants with or at risk for apnea of prematurity. Cochrane Database Syst Rev, 2023.PMID 37040532
- [4]Erickson G, Dobson NR, Hunt CE Immature control of breathing and apnea of prematurity: the known and unknown. J Perinatol, 2021.PMID 33712716
- [5]Atik A, Harding R, De Matteo R Caffeine for apnea of prematurity: Effects on the developing brain. Neurotoxicology, 2017.PMID 27899304
- [6]Henderson-Smart DJ, Steer PA Caffeine versus theophylline for apnea in preterm infants. Cochrane Database Syst Rev, 2010.PMID 20091506
- [7]Henderson-Smart DJ, Steer P Methylxanthine treatment for apnea in preterm infants. Cochrane Database Syst Rev, 2000.PMID 10796304
- [8]Evans S, Avdic E, Pessano S, et al Doxapram for the prevention and treatment of apnea in preterm infants. Cochrane Database Syst Rev, 2023.PMID 37877431
- [9]American Academy of Pediatrics Committee on Fetus and Newborn Apnea, sudden infant death syndrome, and home monitoring. Pediatrics, 2003.PMID 12671135
- [10]Rhein LM, Dobson NR, Darnall RA, et al Effects of caffeine on intermittent hypoxia in infants born prematurely: a randomized clinical trial. JAMA Pediatr, 2014.PMID 24445955
- [11]Jensen EA, Whyte RK, Schmidt B, et al Association between Intermittent Hypoxemia and Severe Bronchopulmonary Dysplasia in Preterm Infants. Am J Respir Crit Care Med, 2021.PMID 34428130
- [12]Kreutzer K, Bassler D Caffeine for apnea of prematurity: a neonatal success story. Neonatology, 2014.PMID 24931325