[Noise in neonatology, the impact of hospital staff]

To identify the various sources of noise in a neonatal intensive care unit in a university hospital centre and to assess the noise level.

The nursing staff was interviewed to obtain a qualitative assessment of the noise in the department. Quantitative observations using a sound level meter and a dosimeter were then made. The measurements presented here were carried out in two different units caring for the newborn: on the heated table and in an incubator.

Many sources of noise were identified in the unit. They were responsible for a noisy environment, the level of which was far greater than current recommendations and left few periods of quiet. The alarms of the various monitors and maintenance apparatuses, the crying of the newborn and the activity of the staff were the principal sources of noise.

The impact of hospital staff on the extent and frequency of sources of noise is crucial. An enhanced awareness strategy should therefore be developed.