Abstract:

Objective

To understand the risk degree of hazard events faced by intensive care unit（ICU）by carrying out Kaiser model-based hazard vulnerability analysis （HVA），so as to provide reference for formulating and improving ICU emergency plans.

Methods

In March 2024， A standardized HVA questionnaire was established according to the Kaiser model， and HVA team of Jintan Hospital affiliated to Jiangsu University conducted HVA questionnaire survey among the department staff. The questionnaire included a comprehensive assessment of 38 potential ICU disaster events， their potential impact on the department （including personnel injuries， property losses， and operational disruptions）， as well as the preventive measures implemented by the department （such as emergency preparedness， internal response protocols， and external response strategies）. All survey data were entered into Excel 2019 for statistical analysis. The Kaiser model calculation formula was used to calculate the relative RISK value of each potential risk event， and the relative risk degree of disaster risk events was ranked according to the relative risk value.

Results

The total number of questionnaires distributed was 40， with a recovery rate of 100%.The top ten RISK values observed in the ICU were as follows： hospital infection outbreaks （71.94%）， public health emergencies （62.59%）， incidents of medical disputes/violence against doctors （54.06%， ventilator failure （53.13%）， medical care error （48.34%）， difficulty or failure of tracheal intubation （43.84%）， patient unplanned extubation （42.32%）， patient aspiration （35.85%）， medical gas failure （31.84%） and improper management of medical waste （28.26%）.

Conclusion

Disaster risk events with high relative risk values in ICU based on Kaiser model primarily revolve around personnel injuries and technical accidents，necessitating the formulation and enhancement of emergency plans to improve response capabilities towards such high relative risk events and ensure safe and orderly operations within the ICU.

Key words: Hazard vulnerability analysis, Kaiser model, Relative risk, Emergency management, Intensive care unit