Objective:To retrieve, evaluate and integrate the evidence related to the preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital, so as to provide reference for clinical implementation of extracorporeal cardiopulmonary resuscitation.Methods:According to the evidence-based nursing method and the 6S evidence model, guidelines, clinical decisions, expert consensus, systematic review and other literatures related to the preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital were searched from National Guideline Clearinghouse, Scottish Intercollegiate Guidelines Network, National Institute for Health and Care Excellence, and other websites, UpToDate, The Cochrane Library, PubMed, Embase, CNKI, Wanfang and other databases. The retrieval date limit was from the establishment of the database to May 20, 2023. Researchers assessed the quality of the included articles, and extracted and summarized the evidence that met the quality standards.Results:A total of 11 articles were included, including 2 guidelines, 6 expert consensuses, 1 systematic review and 2 quasi-experimental studies. A total of 18 pieces of evidences were summarized from 6 aspects, including medical conditions, team building, materials management, operation mechanism, pre-initiating treatment and initiating judgment.Conclusions:This study summarizes the evidence of preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital, which can provide reference for promoting the implementation of extracorporeal cardiopulmonary resuscitation. Future studies still need to focus on team building, personnel training and assessment, and optimisation of the management system, so as to improve the efficiency and readiness of treatment.

BACKGROUND:Although the clinical application of Masquelet technology has achieved extensive success,the research on optimizing all aspects of Masquelet technology is still being carried out.The focus of doctors is to speed up bone healing and shorten bone healing time after bone grafting. OBJECTIVE:To observe the effect of calcium phosphate combined with recombinant human bone morphogenetic protein-2 in repairing tibial infectious bone defects. METHODS:Thirty-one patients with tibial infectious bone defects were selected from The People's Hospital of Jianyang City from June 2017 to June 2022.They were treated with the Masquelet membrane induction technique.During the second stage of operation,they were divided into a control group(n=15)and a study group(n=16)according to different bone graft materials.Patients in the control group were implanted with autologous bone/allogeneic bone particles,and those in the study group were implanted with calcium phosphate combined with recombinant human bone morphogenetic protein-2/autologous bone particles.Six months after the second stage operation,peripheral blood inflammatory indexes such as white blood cell count,C-reactive protein,and erythrocyte sedimentation rate were detected.Imaging bone healing time,bone healing X-ray score,bone defect healing classification,and adjacent joint function were recorded.The presence of nail track infection,implant absorption,pain,and infection in the bone extraction area were observed. RESULTS AND CONCLUSION:(1)White blood cell count,erythrocyte sedimentation rate,and C-reactive protein levels of the two groups 6 months after the second stage operation were significantly lower than those before the first stage operation(P<0.05).There was no significant difference in each index between the two groups(P>0.05).(2)Bone healing time in the study group was shorter than that in the control group(P<0.05).(3)The Samantha X-ray score of the study group 6 months after the second stage operation was higher than that of the control group(P<0.05).The excellent and good rate of bone defect healing and adjacent joint function of the study group was higher than that of the control group(P<0.05).There was no significant difference in the recurrence rate and complication rate between the two groups(P>0.05).(4)These findings indicate that the effect of calcium phosphate combined with recombinant human bone morphogenetic protein-2 during the second stage operation of the Masquelet membrane induction technique in the treatment of tibial infectious bone defect is good and safe.

OBJECTIVE：To establish the fingerprint of Fritillariae thunbergii formula granules and determine the contents of 3 components. METHODS ：HPLC method was used. Using peiminine as reference ，HPLC fingerprints of 13 batches of F. thunbergii formula granules were drawn with Similarity Evaluation System of TCM Chromatogram Fingerprint （2012 edition）. Similarity evaluation and common peak identification were conducted. The contents of peimisine ，peimine and peiminine in F. thunbergii formula granules were determined by the same HPLC method. The quality difference of samples were compared among different manufacturers. RESULTS ：There were 5 common peaks in 13 batches of F. thunbergii formula granules ，and the similarity was 0.669-0.971. Three common peaks of peimisine ，peimine and peiminine were identified. The linear ranges of peimisine ，peimine and peiminine were 30.00-180.00 μg/mL（r＝0.999 9），79.58-477.50 μg/mL（r＝0.999 6）and 97.33-584.00 μg/mL（r＝0.999 4）， respectively. RSDs of precision ，stability（24 h）and reproducibility tests were all lower than 3％. The average recoveries were 95.82％（RSD＝1.17％，n＝6），99.00％（RSD＝1.96％，n＝6）and 95.39％（RSD＝2.00％，n＝6），respectively. In the 13 batches of samples ，the content of peimisine ，peimine and peiminine were 0.17-1.02 mg/g，0.52-2.26 mg/g，and 0.70-3.50 mg/g， respectively. Their average total content was 3.62 mg/g. The average total content of manufacturer C and A was higher （5.02 mg/g and 4.61 mg/g），followed by manufacturer E and B （3.48 mg/g and 3.02 mg/g）；the lowest was manufacturer D（only 1.87 mg/g）. CONCLUSIONS：Established fingerpri nt and content determination method is simple ，feasible and reproducible ，which can be used for the quality evaluation of F. thunbergii formula granules. There are some differences in content among different manufacturers.

Objective:To study the application of blood products in patients with veno-arterial extracorporeal membrane oxygenation (VA-ECMO) and evaluate its effect on the prognosis.Methods:A total of 83 adult patients treated with VA-ECMO in the Emergency Department of the First Affiliated Hospital of Nanjing Medical University from January 2017 to January 2020 were grouped by survival to explore the risk factors of 28-day mortality using binary logistic regression, and the threshold was calculated by ROC curve.Results:Platelet transfusion ( OR=2.506, 95% CI: 1.142-5.499) and non-myocarditis disease ( OR=6.881, 95% CI: 1.615-29.316) were the risk factors of 28-day mortality in adult VA-ECMO patients. The threshold of platelet transfusion was 0.427 mL/(kg·d) (sensitivity 78.4%, specificity 69.6% , AUC 0.735). Conclusions:The increased platelet transfusion is related to the poor prognosis of adult patients with VA-ECMO. Refractory myocarditis patients are better treated with VA-ECMO.

Objective:To analyze the early volume characteristics of patients with severe cardiogenic shock treated with veno-arterial extracorporeal membrane oxygenation (VA-ECMO) and the relationship between their early volume and the prognosis.Methods:This study reviewed patients of Emergency Medical University , treated with VA-ECMO and screened the patients with severe cardiogenic shock and VA-ECMO running more than 72 h for further study. The basic condition of the patients was recorded, and the fluid balance in the first 72 h was analyzed. The patients were grouped according to their fluid balance in the first 72 h. The gender, age, survival rate, continuous renal replacement therapy (CRRT) rate, intra-aortic balloon pump (IABP) rate, and invasive mechanical ventilation rate were compared between the two groups, and the relative risk to the prognosis was calculated. The prognosis was compared between the two groups. Results:Totally 77 patients with severe cardiogenic shock were enrolled. Forty-one cases survived, with an overall survival rate of 53.2%. The volume balance at 48-72 h and the total volume balance at the first 72 h were different between the survival and dead groups. Compared with the positive balance group, patients in the negative balance group were less likely to receive CRRT or invasive mechanical ventilation during the first 72 h. Patients in the negative balance group during the first 72 h had a better survival rate, and their relative risk of survival was 1.81 (95% confidence interval: 1.101, 2.985). However, there was no significant difference in survival rate according to every 24 h fluid balance.Conclusions:Patients with severe cardiogenic shock treated with VA-ECMO who had negative total volume balance during the first 72 h are more likely to survive and less likely to require CRRT or invasive mechanical ventilation.

Objective:To summarize the clinical characteristics and influencing factors on clinical outcome of patients receiving extracorporeal cardiopulmonary resuscitation (ECPR).Methods:A total of 78 patients receiving ECPR admitted to the Department of Emergency Medicine of the First Affiliated Hospital of Nanjing Medical University (Jiangsu Provincial People’s Hospital) from March 2015 to December 2020 were retrospectively enrolled. Patients were divided into the survival group and death group according to clinical outcome. Their baseline data, CPR associated parameters, and pre-ECPR laboratory tests were compared between the two groups.Results:Of the 78 included patients, 51 patients were male and 27 female. Twenty-three patients finally survived, including 10 males and 13 females. There were no significant differences in age, body mass index and underlying diseases (hypertension, diabetes and coronary heart disease) between the two groups (all P > 0.05). The proportion of male patients in the survival group was lower than that in the death group ( P=0.017). Meanwhile Survival After Veno-Arterial ECMO (SAVE) score was significantly higher in the survival group than that in the death group[ (-1.57±4.15) vs. (-9.36±5.36), P<0.001]. The proportion of by-stander CPR in the survival group was higher than that in the death group ( P=0.014). The pre-ECPR serum AST, ALT, and Cr levels in the survival group were significantly lower than those in the death group (all P<0.05). Logistic regression analysis showed that by-stander CPR ( OR=0.114, 95% CI: 0.015~0.867, P=0.036) and SAVE score ( OR=0.625, 95% CI: 0.479~0.815, P=0.001) were independent risk factors predicting ICU death in patients receiving ECPR. Conclusions:ECPR is an efficient tool to improve clinical outcomes of patients with cardiac arrest. By-stander CPR and SAVE score are independent risk factors predicting ICU death in patients receiving ECPR.

Objective:To explore the effect of early pulmonary rehabilitation management model in elderly critically ill patients with mechanical ventilation.Methods:Using convenience sampling, 64 elderly critically ill patients with mechanical ventilation in the Intensive Care Unit (ICU) of the First People's Hospital of Hefei from June to December 2019 were selected as the control group, and 64 elderly critically ill patients with mechanical ventilation in the ICU of the First People's Hospital of Hefei from January to July 2020 were selected as the experimental group. The control group carried out routine nursing, and the experimental group implemented the early pulmonary rehabilitation management model on the basis of routine nursing. The pulmonary function indicators, invasive mechanical ventilation time, ICU stay and cost, delirium incidence, ventilator associated pneumonia (VAP) incidence, outcome and satisfaction of patients and their families were compared between the two groups.Results:The pulmonary function indicators of patients in the experimental group were better than those in the control group, and the difference was statistically significant ( P<0.01) . The invasive mechanical ventilation time and ICU stay of the experimental group were shorter than those of the control group, and the ICU cost was lower than that of the control group, and the differences were statistically significant ( P<0.01) . The incidence of delirium and VAP in the experimental group was lower than those in the control group, and the number of outcome cases was more than that in the control group, and the differences were statistically significant ( P<0.05) . The satisfaction of patients and their families in the experimental group was higher than that in the control group with a statistically significant difference ( P<0.05) . Conclusions:The implementation of the early pulmonary rehabilitation management model can effectively improve the pulmonary function of the elderly critically ill patients with mechanical ventilation, reduce the occurrence of complications and the patient's family financial burden, and increase the satisfaction of patients and their families, which is feasible and extendable.

Unicompartmental knee arthroplasty(UKA) is an important surgical technique for the treatment of end-stage knee osteoarthritis, which has high requirement for the position and angle of the prosthesis. The application of three-dimensional(3D) printed in UKA reflects several characteristics such as accuracy,efficiency and safety,but the current research results show that there is still lack of consistency in the design of 3D printed guides and the standard of prosthetic position parameters. This article reviews the history, manufacturing requirements and process of 3D printed guides during UKA surgery, as well as the results of current clinical research. Whether 3D printed guides can safely and effectively improve the placement accuracy of inexperienced doctors during UKA surgery,and whether the long-term results are worthy of clinical promotion need further verification.

Unicompartmental knee arthroplasty(UKA) is an important surgical technique for the treatment of end-stage knee osteoarthritis, which has high requirement for the position and angle of the prosthesis. The application of three-dimensional(3D) printed in UKA reflects several characteristics such as accuracy,efficiency and safety,but the current research results show that there is still lack of consistency in the design of 3D printed guides and the standard of prosthetic position parameters. This article reviews the history, manufacturing requirements and process of 3D printed guides during UKA surgery, as well as the results of current clinical research. Whether 3D printed guides can safely and effectively improve the placement accuracy of inexperienced doctors during UKA surgery,and whether the long-term results are worthy of clinical promotion need further verification.

Objective:To summarize the inter-hospital transport experience on extracorporeal membrane oxygenation (ECMO) led by a team from emergency department.Methods:The clinical data of 21 patients transferred under the support of ECMO between December 2016 and February 2019 were retrospectively analyzed. All patients were transferred to the First Affiliated Hospital of Nanjing Medical University from other hospitals. Interhospital distance, transport methods, patient demorgraphic characteristics, disease diagnosis, intubation location, intubation method, adverse events during transport and transport outcome were retrieved.Results:Eighteen of the 21 patients were transferred under our mobile ECMO team from outer hospitals to our ECMO intensive care unit. Three patients were cannulated by physicians of outer hospital and transported to our ECMO intensive care unit. All patients were transported by ground ambulance, and the distances varied from 2.5 to 252 km, with an average distance of 112.3±103.2 km. No death occurred during transportation. Adverse events in transport occurred in 6 patients. Of these, the most common were patient-related adverse events..Conclusions:Inter-hospital transport by ECMO in China is currently dominated by ground ambulance.. Experienced mobile ECMO team can safely operate inter-hospital transport supported by ECMO