Effects of a Quiet Time Protocol Implementation on Respiratory Rate and SpO2 in Preterm Infants

Abstract

Background: There are extremely stressful stimuli in the NICU environment. Although attempts have already saved neonates in this unit, this can disturb the adaptability of the infants with environmental stimuli. Methods: In this study, 120 preterm infants were randomly divided into experimental and control groups. The quiet time protocol was implemented at 16:00-18:00 while the control group received a routine program at 11:00-13:00. SpO2 and respiratory rate were measured in 15-min intervals and one hour before and after both times. The sound level and light intensity were also measured. Data analysis was done by independent t-test, Mann Whitney, and ANOVA using SPSS version 11.5. Results: Of all infants, 40% were girls and 60% were boys. Regarding intra-group comparison, the Friedman's nonparametric test showed that the percentage of oxygen saturation in the quiet-time group was not significantly different at the first, second, and third hours during the intervention (P = 0.32); in the control group, it was not also significant. The respiratory rate at the second hour of the intervention was lower in the quiet time group than in the control group (P < 0.07). Conclusions: The implementation of the quiet time protocol can decrease heart rate and respiratory rate through a decrease in environmental stimuli (noise, light, and infant handling), and thus, is recommended for reducing stress in preterm infants.

Interventional Effect of Quiet Time Protocol on the Physiological Parameters of Premature Neonates Admitted to the Neonatal Intensive Care Unit

“…The findings of the research showed that the percentage of oxygen saturation in the quiet time group in the first, second, and third hours during the intervention was not significantly different, which is not in line with the present study and could be due to the unpredictability of some sound stimuli during the implementation of the protocol. Hospitalization of most babies due to respiratory distress syndrome may also play a role in not increasing the percentage of SaO 2 (31). Therefore, the re-sults of this research are not consistent with the present study, which could be attributed to the unpredictability of some sound stimuli during protocol implementation.…”

SCENARIO 3. Numero integrale

“…Attraverso un'iniziale ricerca bibliografica sui database elettronici sono stati identificati tutti gli articoli considerati potenzialmente rilevanti per gli scopi della revisione. In seguito alla rimozione dei titoli duplicati, due ricerca-an art SCENARIO ® 2022; 39 (3): [27][28][29][30][31][32][33][34][35][36][37] tori Scotto e Bizzarri hanno effettuato uno screening iniziale dei titoli e degli abstract al fine di identificare il numero di articoli potenzialmente eleggibili per la revisione. Successivamente, i due ricercatori, autonomamente e separatamente l'uno dall'altro, hanno effettuato un ulteriore screening degli articoli considerando i criteri di inclusione predeterminati e, in seguito all'esclusione degli studi che non rispondevano alle domande guida della revisione, hanno raggiunto il consenso sulla scelta degli studi inclusi nella revisione finale.…”

“…Ciò ha dimostrato che l'implementazione del protocollo potrebbe ridurre lo stress ambientale (rumore, luce e manipolazione), con conseguente miglioramento di alcuni parametri vitali. Vista l'efficacia del protocollo dell'ora del silenzio nella riduzione degli stimoli ambientali attraverso cambiamenti comportamentali e ambientali, si raccomanda di implementare questo protocollo come cura standard per ridurre lo stress e migliorare la crescita e lo sviluppo dei neonati prematuri in UTIN [28] .…”