
Bedside biomarkers that allow early identification of infants with bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH) are critically important, given the higher risk of death in these infants. This study hypothesized that infants with BPD-PH have intermittent hypoxemia (IH) patterns that differ from infants without PH. Forty infants with BPD-PH were compared with 40 infants with BPD alone. Infants with and without PH had a similar frequency of IH events, but infants with PH had more prolonged hypoxemic events for desaturations below 80% and 70%. Among infants with BPD-PH, infants who died had longer hypoxemic events below 70%. Longer duration of intermittent hypoxemic events was associated with a diagnosis of BPD-PH and death among infants with BPD-PH.
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