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Volume 38 Issue 4
Apr.  2022
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Article Navigation >  CHINESE JOURNAL OF BURNS AND WOUNDS  > 2022  >  38(4): 373-377
Chen HQ,Feng XQ,Xu CJ,et al.Application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury[J].Chin J Burns Wounds,2022,38(4):373-377.DOI: 10.3760/cma.j.cn501120-20201202-00514.
Citation: Chen HQ,Feng XQ,Xu CJ,et al.Application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury[J].Chin J Burns Wounds,2022,38(4):373-377.DOI: 10.3760/cma.j.cn501120-20201202-00514.
shu

Application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury

doi: 10.3760/cma.j.cn501120-20201202-00514

  • Department of Burn and Wound Repair, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China

Funds:

Key Project of Major Health Science and Technology Plan of Zhejiang Province of China WKJ-ZJ-2123

More Information
  • Corresponding author: Feng Xiuqin, Email: fengxiuqin@zju.edu.cn
  • Received Date: 2020-12-02
    Abstract
  •   Objective  To explore the application effects of feedforward control theory in the rollover bed treatment of mass patients with burn-explosion combined injury.  Methods  A retrospective observational research was conducted. From June 13 to 14, 2020, 15 patients with severe burn-explosion combined injury caused by liquefied natural gas tank car explosion and conforming to the inclusion criteria were admitted to the Second Affiliated Hospital of Zhejiang University School of Medicine. There were 13 males and 2 females, aged 33-92 (66±17) years. All the patients were treated with rollover bed from 48 h post admission, and the feedforward control theory was introduced, including establishing a special feedforward control management team for rollover bed, clarifying the duties of the medical staff in the rollover bed treatment of patients, implementing the cooperation strategy of multidisciplinary physician, training and examining for 80 nurses in the temporarily organized nurse team in the form of "rollover bed workshop", and formulating the checklist and valuation list of rollover bed treatment for continuous quality control. The frequency and the total number of turning over, and successful rate of one-time posture change with the rollover bed of patients within 30 days of admission were recorded, the occurrences of adverse events caused by improper operation for the rollover bed during the treatment were observed, including respiratory and cardiac arrests, treatment interruption, unplanned extubation, bed falling, and skin graft displacement. The lowest levels of arterial partial pressure of oxygen (PaO2) and arterial partial pressure of carbon dioxide (PaCO2), the number of patients with oxygenation index>300 mmHg (1 mmHg=0.133 kPa), and the occurrence of acute respiratory distress syndrome (ARDS) of patients within 2 days of admission and on the 30th day of admission were recorded.  Results  Within 30 days of admission, the patients were turned over with the rollover bed for 2 to 6 times each day, with a total of 1 320 turning over operations, the successful rate of one-time posture change reached 99.9% (1 319/1 320), and no adverse event occurred. Within 2 days of admission, the lowest levels of PaO2 and PaCO2 of the patients were (100±19) and (42±4) mmHg, respectively, and the number of patients with mild, moderate, and severe ARDS were 10, 2, and 3, respectively, and none of the patients had oxygenation index>300 mmHg. On the 30th day of admission, the lowest levels of PaO2 and PaCO2 of the patients were (135±28) and (37±8) mmHg, respectively, 3 patients developed moderate ARDS, 1 patient developed severe ARDS, and 11 patients had oxygenation index>300 mmHg.  Conclusions  The introduction of feedforward control theory in the treatment of rollover bed of mass patients with burn-explosion combined injury can ensure safe and successful completion of turning over with the rollover bed, promote the repair of burn wound, and improve respiratory function, and therefore improve the treatment quality of patients.

     

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