Abstract
OBJECTIVES: This study aimed to investigate the effect of noise control care on emotional state and sleep quality in patients with ventilator-induced diaphragmatic dysfunction (VIDD). METHODS: This retrospective study analysed 147 patients with VIDD between January 2023 and December 2023. Patients were grouped based on their admission period as follows: the standard care group (n = 63) comprised patients who received standard care in conventional wards between January 2023 and June 2023, whereas the noise control group (n = 84) included patients treated between July 2023 and December 2023 who additionally received noise reduction measures. Outcome measurements included Hamilton Anxiety Rating Scale (HAMA) and Hamilton Depression Rating Scale (HAMD) scores at baseline and Day 7. Other indicators included environmental sound levels (LAeq, LAmin and LAmax); Richards-Campbell Sleep Questionnaire (RCSQ) scores; haemodynamic measurements; duration of mechanical ventilation (MV) and incidence of delirium and hospital length of stay. RESULTS: Both groups showed comparable baseline characteristics. The noise control group experienced significantly lower noise levels at daytime and nighttime than the standard care group (P < 0.001). Both groups demonstrated improved HAMA and HAMD scores by Day 7, but the noise control group showed significantly greater reductions than the standard care group (P < 0.001). RCSQ scores were significantly higher in the noise control group across all five domains and total score (P < 0.001). The noise control group exhibited improved haemodynamic stability with significantly reduced heart rate and blood pressure on Day 7 (P < 0.001). A significantly lowered incidence of delirium was observed in the noise control group (10.71% vs. 25.40%, P < 0.05), accompanied with a shortened duration of MV (P < 0.001) and hospital length of stay (P < 0.05). CONCLUSION: Noise control was associated with reduced anxiety and depression, improved sleep quality and superior clinical outcomes in patients with VIDD.