Objective:To investigate the status of disaster preparedness of pediatric nurses and its influencing factors, as well as the impact path of psychological capital and perceived organizational support on disaster preparedness.Methods:This was a cross-sectional study. A total of 361 pediatric nurses from Henan Provincial People ′s Hospital, the Third Affiliated Hospital of Zhengzhou University, Fuwai Central China Cardiovascular Hospital were sampled from August to October 2021. They were investigated by the general information questionnaire, psychological capital questionnaire, perceived organizational support questionnaire and disaster preparedness questionnaire. SPSS25.0 was used to analyze the questionnaire and scale data, and AMOS23.0 was used to construct a structural equation model about the disaster preparedness of pediatric nurses. Results:The scores of disaster preparedness from pediatric nurses was 4.65 ± 0.92. The level of disaster preparedness was significantly positively correlated with psychological capital and perceived organizational support ( r=0.690, 0.525, both P<0.05). Disaster training and emergency drill 2 dimensions of psychological capital questionnaire (hope, resilience), perceived organizational support were independent contributing factors ( P<0.05). Psychological capital had direct effect on disaster preparedness. And the direct effect was 0.77, the indirect effect was 0.11, the total effect was 0.88, and the direct effect of perceived organizational support on disaster preparedness was 0.21. Conclusions:The score of disaster preparedness of pediatric nurses was in the middle level. Hospital managers should strengthen the training of pediatric nurses in disaster knowledge, operational and simulation exercise, pay attention to the level of nurses' psychological capital and perceived organizational support, so as to provide reference for the follow-up clinical pediatric disaster nursing education and management.

Objective:To summarize the management experience of helicopter medical transport in patients with critical heart disease, so as to provide reference for transport of patients with critical heart disease under the background of major natural disasters.Methods:The clinical and transport data of 36 critically ill cardiac patients in Fuwai Central China Cardiovascular Hospital from 16:30 on July 21 to 19:30 on July 22, 2021 due to historically rare heavy rainstorms were collected. All 36 critically ill cardiac patients were transported by helicopter. The safe transportation was implemented under the measures of quickly forming a transport leadership and coordination group, clarifying responsibilities and division of labor, doing a good job in the pretreatment of the patient's condition, pipeline assessment and mechanical circulation support (MCS) equipment, simulating and practicing the transfer process, improving the safety of the transfer implementation process, and effectively handing over with the target hospital. The gender, age, disease type, MCS, transport and outcome of patients were collected.Results:Thirty-six patients with cardiac critical illness were from adult extracardiac intensive care unit (ICU), adult cardiac care unit (CCU), children's CCU, comprehensive ICU and department of neurology. There were 24 males and 12 females; age (50.93±20.86) years old. There were 12 patients using respirator, 7 patients needing MCS, 2 of whom needed both extracorporeal membrane oxygenation (ECMO) and intra-aortic balloon pump (IABP), and 7 patients with post-cardiac surgery. The total distance of transportation of 36 patients was 1 638.4 km, the transit time was 10.5 hours, one way flight time of helicopter was about 8 minutes, and the average transport time per patient was about 17.5 minutes. The vital signs of 36 patients during transport were basically stable, without complications, and all of them reached the target hospital safely.Conclusion:Under the seamless connection of the rapid establishment of the transfer leadership coordination group, assessment of the patient's condition and pretreatment, the simulation of the transfer process, and the effective handover with the receiving hospital, the use of helicopter for medical transport for critically ill heart patients is feasible and safe, which can buy valuable time for saving patients' lives and further treatment.