Impact of sound levels on physiological and consciousness state of cardiovascular patients
Metadatos
Afficher la notice complèteEditorial
Wiley
Materia
Critically ill patient Environment Intensive care units Noise Safety culture
Date
2022-01-20Referencia bibliográfica
Morales-Cané I, Moral-Arroyo JA, Debbia F, et al. Impact of sound levels on physiological and consciousness state of cardiovascular patients. Nurs Crit Care. 2022;1-11. [doi:10.1111/nicc.12746]
Patrocinador
Regional Ministry of Health and Families, Government of Andalusia. Reference: PIGE-0462-2019Résumé
Background
Patients treated in intensive care units (ICUs) experience life-threatening medical conditions but some external factors in ICUs do not help or even adversely affect and complicate their evolution. Among others, such factors include noise pollution due to alarms and medical clinical equipment, as well as the activities of the health care personnel themselves.
Aim
This study aimed to evaluate the influence of elevated sound levels on physiological variables and the consciousness state of patients treated in a cardiovascular area in an ICU.
Design
A longitudinal study with several observations was carried out during 1 month in the cardiovascular area of an ICU of a third-level hospital in southern Spain.
Methods
Sound levels were monitored in different work shifts and patients' physiological data and consciousness status were recorded. Generalized additive mixed models (GAMMs) were developed to detect the variability of the sound levels together with the vital parameters of the patients in the ICU.
Results
Thirty-eight patients were included. The mean sound level was 54.09 dBA. The GAMM sound levels analysis showed a significant increase in sound levels from 4:30 p.m. to 8:00 p.m. (1.83 dBA; P < .001) and 8:00 p.m. to 11:30 p.m. (3.06 dBA; P < .001). An increase in heart rate (3.66 bpm; P < .001), respiratory rate (2.62 rpm; P < .001) and the Glasgow Coma Scale (0.50 units; P = .002) was detected during the 4:30 p.m.–8:30 p.m. period.
Conclusions
Elevated sound levels in cardiovascular ICUs seem to influence positively the physiological and consciousness status of patients. Given the importance of the findings for patient safety, future intervention studies are recommended.
Relevance to Clinical Practice
The finding of this study could translate into structural changes in ICU facilities, as well as the development of clinical practice guidelines that influence the behaviour of health care professionals.