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Developmental respiratory physiology

Daniel Trachsel1, Thomas O Erb2, Jürg Hammer1

  • 1Pediatric Intensive Care and Pulmonology, University Children's Hospital of Basel UKBB, Basel, Switzerland.

Paediatric Anaesthesia
|December 8, 2021
PubMed

Insights

Infants and young children face higher anesthesia risks due to immature respiratory control and airway differences. Understanding pediatric respiratory physiology is crucial for preventing respiratory failure during medical procedures.

Area of Science:

  • Pediatric Anesthesiology
  • Respiratory Physiology
  • Critical Care Medicine

Background:

  • Infants and young children exhibit unique respiratory system development.
  • Immature breathing control and airway anatomy increase risks during anesthesia.
  • Higher metabolic oxygen demand and lower pulmonary reserve exacerbate these risks.

Purpose of the Study:

  • To review developmental aspects of pediatric respiratory physiology.
  • To summarize the implications for anesthesia in infants and children.
  • To highlight risks of respiratory failure and critical incidents.

Main Methods:

  • Literature review of pediatric respiratory physiology.
  • Analysis of developmental changes in breathing control.
  • Examination of airway mechanics and gas exchange in children.
  • Synthesis of anesthetic considerations based on physiological data.

Main Results:

  • Infants display immature breathing control, leading to apneas.
  • Pediatric airways have higher resistance and collapsibility.
  • Reduced lung oxygen reserve and increased oxygen demand hasten desaturation.
  • These factors contribute to a higher incidence of critical incidents during anesthesia.

Conclusions:

  • Developmental respiratory physiology significantly impacts anesthesia safety in pediatric patients.
  • Anesthesiologists must consider these physiological differences to mitigate risks.
  • Further understanding can improve anesthetic management and patient outcomes.

Keywords:
airwayairway obstructionchildcompliancecontrol of breathinggrowthphysiology

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