Li L, Pan Q, Xu L, Lin R, Dai J, Chen X, Jiang M, Chen Z. Comparison of analgesic and anxiolytic effects of nitrous oxide in burn wound treatment: A single-blind prospective randomized controlled trial.
Medicine (Baltimore) 2019;
98:e18188. [PMID:
31860965 PMCID:
PMC6940169 DOI:
10.1097/md.0000000000018188]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AIM
We compared the effects of 50% N2O and N2O titration in burn management to alleviate pain and anxiety associated with burn dressing.
METHODS
In this single-blind prospective randomized controlled trial, 70 stable adult burn patients were randomized to 2 groups during May 2015 to January 2016. The experimental group was titrated with N2O ranging from 30% to the ideal sedation concentration before dressing change until the end. The control group was treated with 50% N2O 2 minutes before dressing change until the end. Pain, anxiety, vital signs, and the highest concentrations of N2O inhaled were recorded at 1 minute before N2O inhalation (T0), dismantling of outer (T1), inner dressings (T2), debridement (T3), drug-smearing (T4), bandaging (T5), and 10 minutes after completion of the procedure (T6).
RESULTS
The pain and anxiety scores in the experimental group performed significantly less than the control group during T2-T6. The systolic blood pressure in T2 and the heart rate at T2 and T3 varied significantly between the 2 groups. The highest N2O concentrations of the experimental group were mainly 60% to 70% at T2 (87.9%), T3 (87.9%), and T4 (81.8%).
CONCLUSION
N2O titration significantly reduced pain and anxiety in burn patients, with minimal side effects.
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