Oxygen therapy and home oxygen in children — branching viva

Branching viva from a hypoxaemic child with pneumonia, through the principle of prescribing oxygen to a saturation target band, the limits of the pulse oximeter, the meaning of a rising oxygen requirement and the rule to ventilate rather than merely oxygenate, to an ex-preterm infant being assessed for home oxygen whose readiness criteria, safety and weaning are tested, and finally the neonatal oxygen target.

branching clinical structured oral2 min readVerification in progress

Prompt

You are the paediatric registrar covering the ward and the respiratory clinic. The examiner asks you to work through a hypoxaemic child with pneumonia whose oxygen requirement is changing, and then an ex-preterm infant with chronic lung disease being considered for home oxygen. Information is released in stages.

Opening — framing the problem

The examiner begins: a two-year-old with pneumonia has a saturation of eighty-eight per cent in air and looks only mildly unwell. How do you think about oxygen here? [10] [6]

I would treat oxygen as a drug given to correct hypoxaemia and titrated to a saturation target band, not to the highest number. This child is genuinely hypoxaemic despite looking settled, which is the common trap of silent hypoxaemia, so I would start supplemental oxygen by nasal cannula, aim for a target band of around ninety-two to ninety-six per cent, and treat the underlying pneumonia. [3] [10]

Paediatrics Fellowship Pro

You have read the opening of this viva. The complete unit — every section and its primary-source references — is part of the Paediatrics Fellowship fellowship atlas.

References11Show ledger

[1]Hayes D Jr; Wilson KC; Krivchenia K; et al Home Oxygen Therapy for Children. An Official American Thoracic Society Clinical Practice Guideline. Am J Respir Crit Care Med, 2019.PMID 30707039
[2]Balfour-Lynn IM; Field DJ; Gringras P; et al BTS guidelines for home oxygen in children. Thorax, 2009.PMID 19586968
[3]O'Driscoll BR; Howard LS; Earis J; et al BTS guideline for oxygen use in adults in healthcare and emergency settings. Thorax, 2017.PMID 28507176
[4]Cunningham S; Rodriguez A; Adams T; et al Oxygen saturation targets in infants with bronchiolitis (BIDS): a double-blind, randomised, equivalence trial. Lancet, 2015.PMID 26382998
[5]Franklin D; Babl FE; Schlapbach LJ; et al A Randomized Trial of High-Flow Oxygen Therapy in Infants with Bronchiolitis. N Engl J Med, 2018.PMID 29562151
[6]Rojas-Reyes MX; Granados Rugeles C; Charry-Anzola LP Oxygen therapy for lower respiratory tract infections in children between 3 months and 15 years of age. Cochrane Database Syst Rev, 2014.PMID 25493690
[7]Askie LM; Darlow BA; Finer N; et al Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA, 2018.PMID 29872859
[8]Manja V; Lakshminrusimha S; Cook DJ Oxygen saturation target range for extremely preterm infants: a systematic review and meta-analysis. JAMA Pediatr, 2015.PMID 25664703
[9]Saugstad OD; Aune D Optimal oxygenation of extremely low birth weight infants: a meta-analysis and systematic review of the oxygen saturation target studies. Neonatology, 2014.PMID 24247112
[10]Graham HR; King C; Duke T; et al Hypoxaemia and risk of death among children: rethinking oxygen saturation, risk-stratification, and the role of pulse oximetry in primary care. Lancet Glob Health, 2024.PMID 38914087
[11]Franklin D; Babl FE; Neutze J; et al Predictors of Intensive Care Admission in Hypoxemic Bronchiolitis Infants, Secondary Analysis of a Randomized Trial. J Pediatr, 2023.PMID 36528052