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Severe hypoxaemia in pertussis.
D P Southall1, M G Thomas, H P Lambert
1Department of Paediatrics, Brompton Hospital, London.
Archives of Disease in Childhood
|June 1, 1988
Summary
Infants with pertussis experienced more frequent breathing pauses and low oxygen levels, even while breathing. This suggests abnormal breathing patterns contribute to severe hypoxemia in pertussis.
Area of Science:
- Pediatrics
- Respiratory Medicine
- Infectious Diseases
Background:
- Pertussis (whooping cough) can cause severe health issues in infants.
- Cyanotic episodes and hypoxemia are serious complications observed in infants with pertussis.
Purpose of the Study:
- To investigate breathing patterns and oxygen saturation in infants with pertussis-associated cyanotic episodes.
- To compare these patterns with healthy infants.
Main Methods:
- Overnight polysomnography recording breathing, airflow, and arterial oxygen saturation.
- Comparison of six infants with pertussis and 12 age-matched healthy controls.
Main Results:
- Infants with pertussis showed significantly more frequent apnoeic pauses (≥12.0 seconds) and hypoxemic episodes (O2 sat ≤80% for ≥0.5 seconds).
- Hypoxemia occurred more often during continued breathing in pertussis infants, indicating ventilation-perfusion mismatch.
Conclusions:
- Abnormal apnea and ventilation-perfusion mismatch contribute to rapid, severe hypoxemia in infants with pertussis.
- These findings highlight critical respiratory disturbances in pertussis infants.