GIẢM TIẾNG ỒN TẠI KHOA HỒI SỨC NGOẠI BỆNH VIỆN NHI ĐỒNG 1

Abstract

Introduction: Physical and psychological environment has significantly impacts on clinical care quality and job satisfaction. There are 2 sources of noise identified at Surgical intensive care unit of Children’s hospital 1 as speech and device alarm. Objective: To reduce the mean values of LAeq and the maximum values of LCpeak less than 65dB and 90dB respectively in the daytime, and increase the compliance rate of noise-control instructions over 85%. Methods: A cross-sectional design was utilized to assess, select noise-measurement apps, explore sources and rush hours for interventions. The PDCA approach and before-and-after time series design without control group was done in the intervention phase. Selecting 3 fixed locations to measure noise every hour for 24 hours in the first 2 days and 8 daytime hours (7:00 - 16:00) in the next 2 weeks, and recording the sound sources at the time of measurement to determine rush hours and causes. Measuring noise at rush hours daily and monitoring compliance rate of control-noise instructions to evaluate the effectiveness of interventions. Calculate mean, standard deviation of the quantitative variables and the frequency of nominal variables in the cross-sectional study. The control chart was utilized to analyse time series data in the intervention phase. Results: The mean values of LAeq and the maximum values of LCpeak decreased from 70.11dB to 67.72dB and 102.71dB to 100.68dB respectively, after the intervention. The trend of noise volume decreased significantly in cumulative sum chart (CUMSUM) and nearly reached the target. The compliance rate of noise-control instructions (setting alarms, handling with alarms, handover instructions) increased, had an above-shift significantly and reached the target. The mean value of compliance rate of setting alarms, handling alarms and hand-off instruction were 89.11%, 84.17% and 91.67% respectively. Conclusion: The interventions reduced slightly noise volume. It needs to do more interventions for reaching the target and maintaining the results, in order to reduce stress of patients and staff toward safe environment for patient management and staff’s working in the psychological term.