• Garcia Guerra Gonzalo G Department of Pediatrics, University of Alberta, Edmonton, AB, Canada; Stollery Children's Hospital, Edmonton, AB, Canada., Ari R Joffe, Cathy Sheppard, Jodie Pugh, Elham Khodayari Moez, Irina A Dinu, Hsing Jou, Lisa Hartling, Sunita Vohra, SedationWithdrawal and Analgesia Team (SWAT), and Canadian Critical Care Trials Group (CCCTG).
• Department of Pediatrics, University of Alberta, Edmonton, AB, Canada; Stollery Children's Hospital, Edmonton, AB, Canada.
• J Crit Care. 2018 Apr 1; 44: 318-322.

PurposeTo describe noise levels in a pediatric cardiac intensive care unit, and to determine the relationship between sound levels and patient sedation requirements.Materials And MethodsProspective observational study at a pediatric cardiac intensive care unit (PCICU). Sound levels were measured continuously in slow A weighted decibels dB(A) with a sound level meter SoundEarPro® during a 4-week period. Sedation requirement was assessed using the number of intermittent (PRNs) doses given per hour. Analysis was conducted with autoregressive moving average models and the Granger test for causality.Results39 children were included in the study. The average (SD) sound level in the open area was 59.4 (2.5) dB(A) with a statistically significant but clinically unimportant difference between day/night hours (60.1 vs. 58.6; p-value < 0.001). There was no significant difference between sound levels in the open area/single room (59.4 vs. 60.8, p-value = 0.108). Peak noise levels were > 90 dB. There was a significant association between average (p-value = 0.030) and peak sound levels (p-value = 0.006), and number of sedation PRNs.ConclusionSound levels were above the recommended values with no differences between day/night or open area/single room. High sound levels were significantly associated with sedation requirements.Copyright © 2017 Elsevier Inc. All rights reserved.

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