Réanimation Pédiatrique et Néonatale, Département d'Anesthésie Réanimation, Hôpital Nord, Assistance-Publique Hôpitaux de Marseille, Marseille, France.
Pediatr Crit Care Med. 2011 Mar;12(2):e69-72. doi: 10.1097/PCC.0b013e3181e89d91.
To determine whether a sound-activated light-alarm device could reduce the noise in the central area of our pediatric intensive care unit and to determine whether this reduction was significant enough to decrease the noise that could be perceived by a patient located in a nearby room. The secondary objective was to determine the mode of action of the device.
In a 16-bed pediatric and neonatal intensive care unit, a large and clearly noticeable sound-activated light device was set in the noisiest part of the central area of our unit, and noise measurements were made in the central area and in a nearby room. In a prospective, quasi-experimental design, sound levels were compared across three different situations--no device present, device present and turned on, and device present but turned off--and noise level measurements were made over a total of 18 days.
PATIENTS/SUBJECTS: None.
Setting a sound-activated light device on or off.
When the device was present, the noise was about 2 dB lower in the central area and in a nearby room, but there was no difference in noise level with the device turned on vs. turned off.
The noise decrease in the central area was of limited importance but was translated in a nearby room. The sound-activated light device did not directly decrease noise when turned on, but repetition of the visual signal throughout the day raised staff awareness of noise levels over time.
确定声音激活的灯光警报器是否可以降低我们儿科重症监护病房中心区域的噪音，并确定这种降低是否足以降低位于附近房间的患者可感知的噪音。次要目的是确定该设备的作用模式。
在一个有 16 张病床的儿科和新生儿重症监护病房中，在我们病房中心区域最嘈杂的地方设置了一个大型且明显可见的声音激活灯光设备，并在中心区域和附近的房间进行了噪音测量。在一项前瞻性、准实验设计中，在三种不同情况下（无设备、设备开启和设备关闭）比较了声音水平，并在总共 18 天内进行了噪音水平测量。
患者/受试者：无。
开启或关闭声音激活灯光设备。
当设备存在时，中心区域和附近房间的噪音降低了约 2 分贝，但设备开启与关闭时的噪音水平没有差异。
中心区域的噪音降低虽然有限，但在附近的房间里却有明显的效果。当设备开启时，声音激活灯光设备并没有直接降低噪音，但随着时间的推移，视觉信号的重复会提高工作人员对噪音水平的意识。
