Objective To investigate the characteristics of cardiovascular health score trajectories in patients after percutaneous coronary intervention（PCI）. Methods The convenience sampling method was used to recruit 339 acute myocardial infarction patients who underwent PCI for the first time in the cardiology department of a first-class tertiary hospital in Harbin from May to October 2019 with regular follow-up after PCI. We used the group-based trajectory model to identify the heterogeneous trajectory groups of cardiovascular health score based on the baseline,6 months and 12 months follow-up. The Cox proportional risk regression model was used to analyze the effect of trajectory groups and major adverse cardiac events（MACE）. Results 5 cardiovascular health score trajectories were identified as low-increasing group（19.8%）,medium-declining and then increasing group（24.8%）,medium-rapid increasing group（14.4%）,medium-stable group（31.9%）,high-stable group（9.1%）. Cox proportional risk regression model showed that,after adjustment for potential confounding factors（age,sex,high-density lipoprotein cholesterol and alcohol consumption）,the risk of MACE in medium-declining first and then increasing group,medium-rapid increasing group,medium-stable group and high-stable group were 0.498（P=0.033）,0.446（P=0.049）,0.403（P=0.006） and 0.259（P=0.030） times of low-increasing group,respectively. Conclusion Acute myocardial infarction patients after PCI for a year showed various cardiovascular health score trajectories;the improvement and maintainance of a high level of cardiovascular health score were negatively correlated with the risk of MACE. Medical staff can monitor the characteristics of cardiovascular health score changes dynamically,strengthen risk factor management and adopt early intervention methods to improve prognosis.

The nursing experience of a patient undergoing emergency coronary artery bypass grafting in the period of targeted drug therapy after lobectomy. The patient，who was complicated with multiple drug-resistant bacterial infections and other lesions，had acute myocardial infarction during the targeted drug therapy. The main points of nursing include the assessment and care of cardiac function，proper measures of excessive drainage fluid，protection and rehabilitation of lung function，prevention and control of infection，protection of liver and kidney function，targeted psychological care and health education to help him build confidence in overcoming disease. After the comprehensive management of a multidisciplinary team，tracheal intubation was removed 38 hours after surgery，and the patient was discharged 15 days after emergency operation.

Objective To investigate the current status of infusion of vasoactive agents of Chinese nurses and compare the differences between different hospitals. Methods Convenience sampling method was used to conduct a descriptive online survey in 31 provinces from July to August,2020. The contents of the survey include demographic characteristics,current application of vasoactive agents,the use of vascular access and nursing practice of vasoactive agent infusion. Results A total of 7 873 qualified samples were collected. Indwelling needles（93.92%）were the most common vascular access for vasoactive agent,followed by central venous catheters（61.27%）,and steel needles accounted for the least（15.11%）. The proportion of nurses in tertiary hospitals or cardiovascular specialist hospitals using central venous catheters was relatively higher than that in non-tertiary hospitals or general hospitals（P<0.001）. Blood pressure,heart rate and respiration rate were 3 commonly used indicators for both evaluation and observation. Compared with the nurses in tertiary hospitals,there is a relatively higher proportion of nurses in non-tertiary hospitals who do not change the infusion site,use adjustable infusion apparatus or manual speed control,think that changing the height of syringe pumps does not affect the stability of the infusion,do not pump back before locking,press quick infusion key or make a rapid injection of normal saline when the blood returns,and do not perform ECG monitoring for all patients when infusing vasoactive agents（P<0.05）. Meanwhile,there is a higher proportion of nurses in general hospitals who inject other agents fleetly through T-pipe,do not pump back before locking,press quick infusion key or rapid inject normal saline when blood returns and do not perform ECG monitoring for all patients when infusing vasoactive agents,compared with nurses in cardiovascular specialist hospitals（P<0.001）. Conclusion The nursing practice of infusing vasoactive agents has safety risks. Thus,the nursing standards for intravenous infusion of vasoactive agents need to be revised,and nurse managers are advised to conduct standardized management and supervision.