Analgesia effect of a fixed nitrous oxide/oxygen mixture on burn dressing pain: study protocol for a randomized controlled trial

Trials

Zhao Jijun⁶  Tang Hongtai²  Xia Zhaofan²  Han Wenjun⁴  Wang Guangyi²  Mu Guoxia⁷  Yao Ming¹  Wu Yinsheng¹  Ma Xiuqiang⁸  Ni Wen⁴  Xiao Shichu²  Hu Xiaoyan²  Zhang Wannian⁵  Zhou Wanfang²  Dai Xiuying⁷  Yu Jianqiang⁷  Tang Lu³  Li Yuxiang⁷ 

[1] Burn and Trauma Centre, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, 750004, China;Burn and Trauma Centre, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China;Department of Anesthesiology, General Hospital of Jinan Military Command, 25 Shifan Road, Jinan, 250031, China;Department of Anesthesiology & ICU, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China;Department of Phamacology, Second Military Medical University, 800 Xiangyin Road, Shanghai, 200433, China;Department of Nursing, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China;Ningxia Medical University, 1160 Sheng Li Street, Yinchuan, 750004, China;Medical Statistics Department, Second Military Medical University, 800 Xiangyin Road, Shanghai, 200433, China

关键词: Nitrous oxide;    Burn procedural pain;    Analgesia;   

Others  :  1095570
DOI  :  10.1186/1745-6215-13-67

 received in 2011-12-14, accepted in 2012-05-24,  发布年份 2012

【 摘 要 】

Background

Procedural burn pain is the most intense acute pain and most likely type of burn injury pain to be undertreated due to the physician’s fear of the adverse effect of analgesia and lack of anesthetist present. At our institution, in most of the cases, local burn detersion and debridement were performed at the ward level without any analgesics. This article describes a study designed to test the analgesia effect of a fixed nitrous oxide/oxygen mixture on burn dressing pain.

Methods/design

The experiment was carried out in three centers. The patients were given a number from 1 to 240. A randomization list was produced by a statistician according to our preliminary study. Due to the severity of the pain suffered, ethically it was decided to help as many as possible, so patients given the letters A, B or C were treated using a canister with the appropriate letter containing preprepared nitrous oxide/oxygen mixture (NOOM). Those with D were given oxygen only, from an identical-looking canister labeled D. Neither patients, nor doctors, nor nurses, nor data collector knew what was in each canister, thus they were all blind. The nursing officer who implemented the intervention handed the doctors envelopes containing the patients’ name and allocation of A, B, C or D. Thus, patients receiving NOOM or oxygen were in the ratio 3:1. Parameters, including pain severity, blood pressure, heart rate, digital oxygen saturation and the Chinese version of the burn specific pain anxiety scale (C-BSPAS), were taken before, during and after dressing for each group. A video and audio record was taken individually for later communication coding and outcome analysis. Rescue analgesic was recorded.

Discussion

Based on the findings from our previous qualitative study that physician’s reluctance to order narcotic analgesia is due to its adverse effect and from our pilot experiment, this study aims to test the hypothesis that a fixed nitrous oxide/oxygen mixture will promote better burn dressing pain alleviation and outcomes. Analyses will focus on the effects of the experimental intervention on pain severity during dressing (primary outcomes); physiological parameters, C-BSPAS and acceptance of both health care professionals and patients (secondary outcomes). If this model of analgesia for burn pain management implemented by nurses proves successful, it could potentially be implemented widely in hospital and prehospital settings and improve patients’ satisfaction and quality of life.

Trial registration

(Clinical Trials Identifier: CHICTR-TRC11001690).

【 授权许可】

   
2012 Yuxiang et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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