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J Caring Sci. 2016;5(2): 103-109.
doi: 10.15171/jcs.2016.011
PMID: 27354974
PMCID: PMC4923834
  Abstract View: 1582
  PDF Download: 845

Original Research

Effect of White Noise on Sleep in Patients Admitted to a Coronary Care 

Pouya Farokhnezhad Afshar 1, Fatemeh Bahramnezhad 2*, Parvaneh Asgari 3, Mahmoud Shiri 4

1 Department of Gerontology, University of Social Welfare and Rehabilitation, Tehran, Iran
2 Department of Critical Care Nursing, Nursing and Midwifery Faculty, Tehran University of Medical Sciences, Tehran, Iran
3 Department of Critical Care Nursing, Nursing and Midwifery Faculty, Arak University of Medical Sciences, Arak, Iran
4 Department of Electronic Engineering, Islamic Azad University Iranshahar Branch, Iranshahr, Iran

Abstract

Introduction: Sleep disorders are a common problem in patients in the critical care unit. The objective of the present study was to determine the effect of white noise on the quality of sleep in patients admitted to the CCU. Methods: The present study was single-blind, quasi-experimental study. A total of 60 patients were selected using the purposive sampling method. Quality of sleep was measured with PSQI on the first day in admission, then after three nights of admission without any intervention for control group and for the experimental group quality of sleep measured by white noise with intensity of 50-60 dB then Quality of sleep was measured with PSQI. Data were analyzed by SPSS 13 software. Results: The average total sleep time in the control group before the study reached from 7.08 (0.8) to 4.75 (0.66) hours after three nights of hospitalization, while in the experimental group, no significant changes were seen in the average sleep hours (6.69 ± 0.84 vs. 6.92 ± 0.89, P = 0.15).The average minutes of sleep in the control group before the study reached from 12.66 (7.51) to 25.83 (11.75) minutes after a three- night stay, while in the experimental group, no significant changes were observed in the average sleep duration (12.16 ± 7.50 vs. 11 ±6. 07, P = 0.16). Conclusion: The use of white noise is recommended as a method for masking environmental noises, improving sleep, and maintaining sleep in the coronary care unit.
Keywords: Critical care unit, Noise, Quality of sleep, White noise
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Submitted: 30 May 2016
Accepted: 31 May 2016
ePublished: 31 May 2016
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