Amaç: Bu çalışma yoğun bakım ünitesindeki (YBÜ) Koronavirüs hastalığı-2019 (COVID-19) hastalarına duyusal uyarım ve uyku hijyenini içeren iki bileşenli girişimin deliryum gelişiminin azaltılması üzerine etkisini değerlendirmek için yapılmıştır. Gereç ve Yöntem: Randomize kontrollü deneysel tasarımla yapılan çalışmaya, müdahale grubunda 43, kontrol grubunda 49 hasta dahil edildi. Çalışma iki ayrı COVID-19 YBÜ’de gerçekleştirildi. Müdahale grubundaki hastalara Yaşam Aktivitelerine Dayalı Hemşirelik Modeli’ne göre duyusal uyarım ve uyku hijyeni müdahaleleri uygulandı. Bulgular: Çalışmaya alınan deney ve kontrol grubu hastaları arasında demografik ve tedavi özellikleri ile vital ve arteriyel kan gazı değerleri açısından istatistiksel olarak fark olmadığı belirlendi (p>0,05). Müdahale sonrası deney grubundaki hastaların %56’sında, kontrol grubundaki hastaların %80’inde deliryum geliştiği ve aradaki farkın istatistiksel olarak anlamlı olduğu belirlendi (p<0,05). Sonuç: Deliryum önlemede kullanılan duyusal uyarım ve uyku hijyeni müdahaleleri yoğun bakımdaki COVID-19 hastalarında deliryum insidansını azaltmada etkilidir.

Objective: This study was conducted to evaluate the effect of a two-stage intervention, including sensory stimulation and sleep hygiene based on a nursing model, on the reduction of delirium development in Coronavirus disease-2019 (COVID-19) patients in the intensive care unit (ICU). Materials and Methods: The study was conducted as a pretest-posttest control group and trial model. The sample size of the study was 92 patients with COVID-19, including 43 in the experimental group and 49 in the control group, based on power analysis. The study was conducted in two separate COVID-19 ICUs. Sensory stimulation and sleep hygiene interventions were applied to the patients in the intervention group according to the Living Activities-Based Nursing Model. The intervention was applied to the experimental group until the patients were discharged. Results: It was determined that there was no statistical difference between the experimental and control group patients included in the study in terms of demographic and treatment characteristics and vital and arterial blood gas values (p>0.05). In the study, it was determined that sensory stimulation and sleep hygiene intervention based on the nursing model creates a statistically significant difference in the delirium development levels of the experimental and control group patients (p<0.05). It was determined that delirium developed in 56% of the patients in the experimental group and 80% in the control group after the intervention, and that the difference was statistically significant (p<0.05). Conclusion: The sensory stimulation and sleep hygiene intervention based on the nursing model was effective in reducing the incidence of delirium in critically ill COVID-19 patients.