Caregivers' response to cardiorespiratory events in preterm infants in the NICU - A quantitative overview.

Aim: Cardiorespiratory events in preterm infants pose a major challenge in the Neonatal Intensive Care Unit as they require a prompt response. We aimed to describe caregivers' responses to these events.

Methods: We performed a prospective observational study in 19 preterm infants (28 ± 2 weeks) on non-invasive respiratory support using video recordings of the inside of the incubator for 72 (55-72) h. Caregivers' responses to these events were then identified from the videos.

Results: We recorded and assessed 1851 cardiorespiratory events with a median duration of 11.0 (5.0-23.0) s. No response was observed in the majority of the events (91.5%). In the remaining 8.5% events, caregivers responded by pausing the alarm, adjusting devices and/or providing tactile stimulation with an average response time of 25.4 (13.8-35.9) s. Stimulation was the most observed response and was applied in 38 different ways. On average, stimulation lasted 18.7 (11.6-44.6) s and the cardiorespiratory events were resolved 30.6 (19.5-47.6) s after stimulation started.

Conclusion: Our study showed that cardiorespiratory events are common in preterm infants in the NICU, but often not followed by intervention of the caregiver. The indication, timing and execution of responses to cardiorespiratory events is highly variable.