Noise levels in a neonatal transport incubator in medically configured aircraft

Sittig, Steven E.; Nesbitt, Jeffrey C.; Krageschmidt, Dale A.; Sobczak, Steven C.; Johnson, Robert V.

doi:10.1016/j.ijporl.2010.10.012

Cited by 25 publications

(26 citation statements)

References 24 publications

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“…The average sound level during the whole transport was almost 73 dBA, clearly higher than the current recommendation of the IEC standard (5). The average sound levels presented in earlier studies are comparable with our results (3,26). The sound levels were higher during flight than any other part of the transport.…”

Section: Discussionsupporting

confidence: 92%

“…Being in flight exposes the infant to high sound levels for a relatively long period of time; therefore, it is reasonable to put focus on reducing sound levels during this part of the transportation. A recent study reported no reduction in sound levels inside the transport incubator after covering it with cell foam (26). The consequent use of earmuffs (MiniMuffs®; Natus Medical Inc, Seattle, WA, USA) seems to be a simple method to reduce the sound levels at least 7 dBA as specified by the manufacturer.…”

Section: Discussionmentioning

confidence: 99%

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Sound and vibration: effects on infants’ heart rate and heart rate variability during neonatal transport

Karlsson

Lindkvist

Karlsson³

et al. 2011

Acta Paediatrica

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This is an accepted version of a paper published in Acta Paediatrica. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the published paper: Karlsson, B., Lindkvist, M., Lindkvist, M., Karlsson, M., Lundström, R. et al. (2012) "Sound and vibration: effects on infants' heart rate and heart rate variability during neonatal transport." Acta Paediatrica, 101(2): 148-154 URL: http://dx.doi.org/10.1111/j. 1651-2227.2011.02472.x Access to the published version may require subscription. ABSTRACTAim: To measure the effect of sound and whole-body vibration on infants' heart rate and heart rate variability during ground and air ambulance transport.Methods: Sixteen infants were transported by air ambulance with ground ambulance transport to and from the airports. Whole-body vibration and sound levels were recorded and heart parameters were obtained by ECG signal.Results: Sound and whole-body vibration levels exceeded the recommended limits. Mean whole-body vibration and sound levels were 0.19m/s 2 and 73dBA, respectively. Higher whole-body vibration was associated with a lower heart rate (p<0.05), and higher sound level was linked to a higher heart rate (p=0.05). The heart rate variability was significantly higher at the end of the transport than at the beginning (p<0.01). Poorer physiologic status was associated with lower heart rate variability (p<0.001) and a lower heart rate (p<0.01). Infants wearing earmuffs had a lower heart rate (p<0.05). Conclusions:Sound and whole-body vibration during neonatal transport exceed recommended levels for adults and sound seem to have a more stressful effect on the infant than vibrations. Infants should wear earmuffs during neonatal transport because of the stress reducing effect.Key-words: heart rate variability, neonatal transport, sound, stress, whole-body vibration Key Notes: We have measured effects of sound and whole-body vibration on heart rate and heart rate variability on infants transported by air and ground ambulance. Sound and vibration during neonatal transport exceeded the recommended limits for adults. Neither sound nor whole-body vibration had an effect on heart rate variability, but high sound levels seems to cause a higher heart rate indicating a stressful effect on the infant while high vibration did not.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Sound and vibration: effects on infants’ heart rate and heart rate variability during neonatal transport

Karlsson

Lindkvist

Karlsson³

et al. 2011

Acta Paediatrica

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“…2 Previous research has shown that mortality and morbidity are higher in outborn infants compared with their inborn counterparts. 3,4 The transport environment exposes infants to known physiological stressors, and infants requiring transport are already in a compromised state. Sensory development in preterm infants is immature, and critically ill term infants lack the necessary physiological reserves to handle stress, preventing the habituation to sensory stimulation.…”

mentioning

confidence: 99%

“…Therefore, the transport process may compromise their already tenuous health. 4 In the 1990s, Macnab et al noticed an unexplained deterioration in some infants toward the end of transport and not only reported changes in heart rate and blood pressure but also noticed bulging and receding of infants fontanelles during the takeoff and landing of air transport, perhaps indicating changes in intracranial pressure. 5 Two of the major stressors associated with transport are excessive sound and vibration.…”

mentioning

confidence: 99%

Modern Neonatal Transport: Sound and Vibration Levels and Their Impact on Physiological Stability

et al. 2018

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“…Sittig et al. 's study, which compared sound levels inside and outside empty transport incubators during a medical flight, found that the level in the incubators was 6 dB lower than in the crew cabin . However, this study only examined the empty incubators for 30 minutes.…”

Section: Discussionmentioning

confidence: 92%

Sound levels in a neonatal intensive care unit significantly exceeded recommendations, especially inside incubators

et al. 2017

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Noise levels in a neonatal transport incubator in medically configured aircraft

Cited by 25 publications

References 24 publications

Sound and vibration: effects on infants’ heart rate and heart rate variability during neonatal transport

Sound and vibration: effects on infants’ heart rate and heart rate variability during neonatal transport

Modern Neonatal Transport: Sound and Vibration Levels and Their Impact on Physiological Stability

Sound levels in a neonatal intensive care unit significantly exceeded recommendations, especially inside incubators

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