RT info:eu-repo/semantics/article T1 Noise in ICUs: Review and detailed analysis of long-term SPL monitoring in ICUs in northern Spain A1 Althahab, Awwab Qasim Jumaah A1 Vuksanovic, Branislav A1 Al-Mosawi, Mohamed A1 Machimbarrena Gutiérrez, María de la O A1 Arias, Roi K1 Intensive care units K1 Cuidados intensivos, Unidades de K1 Critical care medicine K1 Cuidados intensivos K1 Noise K1 Noise control K1 Ruido, Lucha contra el K1 Fourier analysis K1 Fourier, Transformaciones de K1 Algoritmos K1 Estadística descriptiva K1 Análisis estadístico K1 Statistics K1 2201.05 Ruido K1 1209.01 Estadística Analítica AB Intensive care units (ICUs) are busy and noisy areas where patients and professional staff can be exposed to acoustic noise for long periods of time. In many cases, noise levels significantly exceed the levels recommended by the official health organisations. This situation can affect not only patient recovery but also professional staff, making ICUs unhealthy work and treatment environments. To introduce the measures and reduce the acoustic noise in the ICU, acoustic noise levels should first be measured and then appropriately analysed. However, in most studies dealing with this problem, measurements have been performed manually over short periods, leading to limited data being collected. They are usually followed by insufficient analysis, which in turn results in inadequate measures and noise reduction. This paper reviews recent works dealing with the problem of excessively high noise levels in ICUs and proposes a more thorough analysis of measured data both in the time and frequency domains. Applied frequency domain analysis identifies the cyclic behaviour of the measured sound pressure levels (SPLs) and detects the dominant frequency components in the SPL time series. Moreover, statistical analyses are produced to depict the patterns and SPLs to which patients in ICUs are typically exposed during their stay in the ICU. It has been shown that the acoustic environment is very similar every night, while it can vary significantly during the day or evening periods. However, during most of the observed time, recorded SPLs were significantly above the prescribed values, indicating an urgent need for their control and reduction. To effectively tackle this problem, more detailed information about the nature of noise during each of the analysed periods of the day is needed. This issue will be addressed in the continuation of this project. PB MDPI SN 1424-8220 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/60198 UL https://uvadoc.uva.es/handle/10324/60198 LA eng NO Sensors, 2022, Vol. 22, Nº. 23, 9038 NO Producción Científica DS UVaDOC RD 27-jul-2024