Objective:To investigate the differences in resistance to chemical disinfectants between bacteriophage Phi-X174 and disinfection effect indicator microorganisms, Staphylococcus aureus and Escherichia coli. Methods:Three commonly used disinfectants, including chlorine-containing disinfectants, alcohol-based disinfectants and quaternary ammonium salt disinfectants, were selected to analyze the differences in resistance of phage Phi-X174, Staphylococcus aureus and Escherichia coli by using the quantitative sterilization test of suspension. Results:The 250 mg/L sodium dichloroisocyanurate solution treated for 10 minutes yielded log reduction values of 3.39, 7.25 and 7.37 against phage Phi-X174, Staphylococcus aureus and Escherichia coli respectively. The 40% ethanol for 1 minute yielded log reduction values of 0.03, 2.46 and 7.30 against phage Phi-X174, Staphylococcus aureus and Escherichia coli, respectively. The 100 mg/L benzalkonium chloride for 10 minutes yielded log reduction values of 1.41, 6.84 and 0.93 for phage Phi-X174, Staphylococcus aureus and Escherichia coli, respectively. Conclusion:Phage Phi-X174 has stronger resistance to chlorine-containing disinfectants and alcohol-based disinfectants than Escherichia coli and Staphylococcus aureus. Its resistance to quaternary ammonium salt disinfectants is between that of Staphylococcus aureus and Escherichia coli.

Objective:To investigate the differences in resistance to chemical disinfectants between bacteriophage Phi-X174 and disinfection effect indicator microorganisms, Staphylococcus aureus and Escherichia coli. Methods:Three commonly used disinfectants, including chlorine-containing disinfectants, alcohol-based disinfectants and quaternary ammonium salt disinfectants, were selected to analyze the differences in resistance of phage Phi-X174, Staphylococcus aureus and Escherichia coli by using the quantitative sterilization test of suspension. Results:The 250 mg/L sodium dichloroisocyanurate solution treated for 10 minutes yielded log reduction values of 3.39, 7.25 and 7.37 against phage Phi-X174, Staphylococcus aureus and Escherichia coli respectively. The 40% ethanol for 1 minute yielded log reduction values of 0.03, 2.46 and 7.30 against phage Phi-X174, Staphylococcus aureus and Escherichia coli, respectively. The 100 mg/L benzalkonium chloride for 10 minutes yielded log reduction values of 1.41, 6.84 and 0.93 for phage Phi-X174, Staphylococcus aureus and Escherichia coli, respectively. Conclusion:Phage Phi-X174 has stronger resistance to chlorine-containing disinfectants and alcohol-based disinfectants than Escherichia coli and Staphylococcus aureus. Its resistance to quaternary ammonium salt disinfectants is between that of Staphylococcus aureus and Escherichia coli.

OBJECTIVE: To investigate the survival of patients with cardiac arrest and cardiopulmonary resuscitation (CA-CPR), and to analyze the factors influencing survival at 30 days after restoration of spontaneous circulation (ROSC). METHODS: A retrospective cohort study was conducted. Clinical data of 538 patients with CA-CPR admitted to the People's Hospital of Ningxia Hui Autonomous Region from January 2013 to September 2020 were enrolled. The gender, age, underlying disease, cause of CA, type of CA, initial rhythm, presence or absence of endotracheal intubation, defibrillation, use of epinephrine, and 30-day survival rate of patients were collected. The etiology of CA and 30-day survival rate among patients with different ages were compared, as well as the clinical data between patients who survived and died at 30 days after ROSC were also compared. Multivariate Logistic regression was used to analyze the relevant factors affecting the 30-day survival rate of patients. RESULTS: Among 538 patients with CA-CPR, 67 patients with incomplete information were excluded, and 471 patients were enrolled. Among 471 patients, 299 were males and 172 were females. Aged from 0 to 96 years old, 23 patients (4.9%) were < 18 years old, 205 patients (43.5%) were 18 to 64 years old, and 243 patients (51.6%) were ≥ 65 years old. 302 cases (64.1%) achieved ROSC, and 46 patients (9.8%) survived for more than 30 days. The 30-day survival rate of patients aged < 18 years old, 18-64 years old and ≥ 65 years old was 8.7% (2/23), 12.7% (26/205) and 7.4% (18/243), respectively. The main causes of CA in patients younger than 18 years were severe pneumonia (13.1%, 3/23), respiratory failure (13.1%, 3/23), and trauma (13.1%, 3/23). The main causes were acute myocardial infarction (AMI; 24.9%, 51/205), respiratory failure (9.8%, 20/205), and hypoxic brain injury (9.8%, 20/205) in patients aged 18-64 years old, and AMI (24.3%, 59/243) and respiratory failure (13.6%, 33/243) in patients aged ≥ 65 years old. Univariate analysis results revealed that the 30-day survival rate of patients with CA-CPR may be related to the the cause of CA was AMI, initial rhythm was ventricular tachycardia/ventricular fibrillation, endotracheal intubation and epinephrine. Multivariate Logistic regression analysis results showed that CA was caused by AMI [odds ratio (OR) = 0.395, 95% confidence interval (95%CI) was 0.194-0.808, P = 0.011] and endotracheal intubation (OR = 0.423, 95%CI was 0.204-0.877, P = 0.021) was a protective factor for 30 days of survival after ROSC in patients with CA-CPR. CONCLUSIONS The 30-day survival rate of CA-CPR patients was 9.8%. The 30-day survival rate of CA-CPR patients with AMI after ROSC is higher than that of patients with other CA causes, and early endotracheal intubation can improve the prognosis of patients.
Female ; Male ; Humans ; Infant, Newborn ; Infant ; Child, Preschool ; Child ; Adolescent ; Young Adult ; Adult ; Middle Aged ; Aged ; Aged, 80 and over ; Retrospective Studies ; Survival Rate ; Heart Arrest ; Hospitals ; Epinephrine ; Ventricular Fibrillation

Objective To analyze the application of intelligent speech follow-up system in sec-ondary prevention of ischemic stroke(IS).Methods A total of 842 IS patients who received intra-venous thrombolysis were randomly divided into intelligent group and artificial group.In the artificial group,corresponding intelligent follow-up templates were developed for the main risk factors affecting the occurrence of IS.The intelligent follow-up system determined the follow-up time and period ac-cording to the reserved information of patients when they were discharged,automatically called out the patients'home conditions for follow-up,and converted the response contents into text mode for out-put.The artificial group was followed up by professionally trained nursing staff,and the follow-up con-tent was the same as that of the intelligent group.Call out,hypertension,diabetes,medication,exer-cise,average call time and satisfaction of follow-up in the two groups were collected.Results The tel-ephone connection rates showed no statistical significances between two groups(P＞0.05).During the follow-up calls,the correct recognition rate of follow-up contents in the intelligent group was low-er,and therateof unwillingness to cooperate and call interruption rate were higher than those in the control group(P＜0.05).There were no statistically significant differences in the percentages of au-tomatic message leaving,inconvenient answering,resident death,family members unable to answer and number error between the two groups(P＞0.05),and there was no statistical significance in the distribution of disconnected calls between the two groups(P＞0.05).In the effective follow-up calls,there was no statistical significance in the answers to questions related to hypertension and diabetes,compliance and exercise between the two groups(P＞0.05).The average call duration in the intel-ligent group was significantly shorter,and follow-up satisfaction was lower than that in the control group(P＜0.05).Conclusion Intelligent voice follow-up system can replace manual telephone follow-up to a certain extent,and help medical staff understand the compliance of home blood pres-sure,blood sugar,medication,exercise and secondary prevention in IS patients,and can save fol-low-up time and improve follow-up efficiency compared with manual follow-up,but its language rec-ognition and improvement of cooperation rate still need to be optimized.

Objective To analyze the application of intelligent speech follow-up system in sec-ondary prevention of ischemic stroke(IS).Methods A total of 842 IS patients who received intra-venous thrombolysis were randomly divided into intelligent group and artificial group.In the artificial group,corresponding intelligent follow-up templates were developed for the main risk factors affecting the occurrence of IS.The intelligent follow-up system determined the follow-up time and period ac-cording to the reserved information of patients when they were discharged,automatically called out the patients'home conditions for follow-up,and converted the response contents into text mode for out-put.The artificial group was followed up by professionally trained nursing staff,and the follow-up con-tent was the same as that of the intelligent group.Call out,hypertension,diabetes,medication,exer-cise,average call time and satisfaction of follow-up in the two groups were collected.Results The tel-ephone connection rates showed no statistical significances between two groups(P＞0.05).During the follow-up calls,the correct recognition rate of follow-up contents in the intelligent group was low-er,and therateof unwillingness to cooperate and call interruption rate were higher than those in the control group(P＜0.05).There were no statistically significant differences in the percentages of au-tomatic message leaving,inconvenient answering,resident death,family members unable to answer and number error between the two groups(P＞0.05),and there was no statistical significance in the distribution of disconnected calls between the two groups(P＞0.05).In the effective follow-up calls,there was no statistical significance in the answers to questions related to hypertension and diabetes,compliance and exercise between the two groups(P＞0.05).The average call duration in the intel-ligent group was significantly shorter,and follow-up satisfaction was lower than that in the control group(P＜0.05).Conclusion Intelligent voice follow-up system can replace manual telephone follow-up to a certain extent,and help medical staff understand the compliance of home blood pres-sure,blood sugar,medication,exercise and secondary prevention in IS patients,and can save fol-low-up time and improve follow-up efficiency compared with manual follow-up,but its language rec-ognition and improvement of cooperation rate still need to be optimized.

COVID-19/virology* ; China/epidemiology* ; Disease Outbreaks ; Genetic Linkage ; Humans ; Phylogeny ; Polymorphism, Single Nucleotide ; SARS-CoV-2/isolation & purification*

Objective:To introduce evidence-based concepts into clinical nursing, and carry out perioperative nutritional risk screening for patients with primary liver cancer treated with Cyberknife, so as to enhance the overall nutritional management awareness and the level of nutritional nursing intervention of the nursing staff, and at the same time provide a basis and support for pushing nursing staff to multidisciplinary cooperation and broadening their professional horizons.Methods:From August 2019 to July 2020, in accordance with the practice model of the Australian Joanna Briggs Institute Evidence-based Health Care Center, we searched the evidence on nutritional risk screening of patients with primary liver cancer treated with Cyberknife in the European Society for Parenteral and Enteral Nutrition website and the Chinese Parenteral and Enteral Nutrition Society website, PubMed, China National Knowledge Infrastructure (CNKI) and Wanfang Data. The evidence was evaluated by the team and applied to nurses and patients in the Liver Oncology Department of the Fifth Medical Center of the People's Liberation Army General Hospital. A total of 21 nurses were selected to conduct a survey with the Nutrition Knowledge Questionnaire of Primary Liver Cancer Patients undergoing Cyberknife Treatment designed by the research team before and after the application of evidence. A total of 41 patients treated with Cyberknife for primary liver cancer admitted from August to December 2019 (without the use of this evidence) were selected as the control group, and 39 patients treated with Cyberknife for primary liver cancer admitted from January to April 2020 (after the application of the evidence) were selected as the observation group. The nutrition-related indicators of the two groups of patients were collected and compared when the patients were admitted to the hospital and when they were discharged after the Cyberknife treatment was completed.Results:After the application of the evidence, 21 nurses' awareness rates of perioperative nutritional risk-related knowledge of patients treated with primary liver cancer Cyberknife, nutritional risk screening implementation rates, patients' nutritional screening knowledge awareness rates and nutritional screening implementation rates were higher than those before the application of the evidence, the differences were statistically significant ( P<0.05) . Conclusions:The evidence-based nursing practice based on the practice model of the Australian Joanna Briggs Institute Evidence-based Health Care Center is used to screen the nutritional risk of perioperative patients with primary liver cancer treated with Cyberknife treatment, which enriches the nurses' knowledge about nutrition risk screening, enhances the initiative of nurses in clinical work, and is also conducive to strengthening multidisciplinary cooperation, and improving the quality of perioperative nutritional nursing management for patients with primary liver cancer treated with Cyberknife.

Objective To report the treatment of type A3 distal tibiofibular fractures with the fibular posterolateral approach and minimally invasive percutaneous plate osteosynthesis (MIPPO).Methods We reviewed 61 patients with type A3 distal tibiofibular fracture (observation group) who had been treated with MIPPO and the fibular posterolateral approach from June 2011 to May 2015.Our control group included 78 patients with type A3 distal tibiofibular fracture who had been treated by traditional open reduction and internal fixation from April 2009 to September 2013.Interval between injury and surgery,surgical time,intraoperative bleeding,hospital stay,postoperative complications,X-ray Lane-Sandhu osteotylus score and limb weight-bearing score one year after operation were compared between the 2 groups.Results All the 139 patients were followed up for more than one year.There were significant differences between the 2 groups in terms of interval between injury and surgery (8.0 ± 3.5 h versus 140.7 ± 52.4 h),surgical time (66.2 ± 7.2 min versus 92.1 ±6.6 min),intraoperative bleeding (59.8 ± 12.8 mL versus 209.5 ±50.4 mL),hospital stay (9.4 ± 1.9 d versus 26.1 ± 15.7 d),postoperative complications,X-ray Lane-Sandhu osteotylus score (3.9 ±0.2 points versus 3.0 ±0.6 points) and limb weight-bearing score (3.9 ±0.1 points versus 3.0 ±0.7 points) one year after operation,favoring the observation group(P ＜ 0.001).Conclusions In the treatment of type A3 tibiofibular fractures,MIPPO plus the fibular posterolateral approach is superior to the traditional open reduction and internal fixation because it can benefit fracture healing by shortening the time for preoperative preparation,surgery and hospitalization,and decreasing the amount of intraoperative bleeding and the incidence of postoperative complications.

Objective:To observe the influence of sevoflurane pretreatment in the lung function of the infants during heart operation by cardiopulmonary bypass (CPB), and to explore its lung protection and possible mechanism.Methods:Sixty infants with ventricular septal defect were enrolled at age less than 1 year old and randomly assigned to pretreatment group and control group (n=30).After the induction of general anesthesia and tracheal intubation,the patients in pretreatment group received continuous inhalation of 1.0 MAC sevoflurane until the beginning of CPB.Inhale sevoflurane was absent in control group.The duration of ventilator support of the infants in two groups was recorded.The Pplate,CL,OI,A-aDO2 ,RI,the number of leukocytes and neutrophils segregated in lung of the patients were compared between two groups at the four time points T0 (before aorta clamping),T1 (30 min after aorta declamping),T2,and T3 (2 h and 6 h after CPB).Results:Compared with control group,the duration of ventilator support of the infants in pretreatment group was obviously shortened (P <0.05).In each group,the CL and OI were significantly decreased (P < 0.05 or P < 0.01),while the Pplate, A-aDO2 ,RI,the number of leukocyte and neutrophils segregated in lung were significantly increased (P <0.05 or P <0.01)at T1,T2,T3 time points compared with T0 time point.The CL and OI in pretreatment group were significantly increased (P <0.05 or P <0.01);the Pplate,A-aDO2,RI,the number of leukocytes and neutrophils segregated in lung in pretreatment group were significantly decreased at T1,T2,and T3 (P <0.05 or P <0.01) compared with control group.Conclusion:Sevoflurane pretreatment might play a role in decreasing the leukocyte adhesion and protecting the lung function in the infants during opening heart operation by CPB.

Objective: To investigate the effect of cold self-blood cardioplegia with ulinastatin on immature myocardial cell apoptosis and protein expressions of Bcl-2, Bax in ventricular septal defect (VSD) infants.
Methods: A total of 60 infants received VSD repairing operation with cardiopulmonary bypass (CPB) in our hospital were summarized. The patients were randomly divided into 2 groups:Test group, the infants received cold self-blood cardioplegia with ulinastatin when aortic cross-clamp was closed. Control group, the infants received cold self-blood cardioplegia when aortic cross-clamp was closed. n=30 in each group. The right atrium tissue was collected before CPB and 10 min after releasing aortic cross-clamp. The index of myocardial cell apoptosis was observed by TUNEL method, and the protein expressions of Bcl-2, Bax were examined by immunohistological method.
Results: Both groups showed the higher index of myocardial cell apoptosis at 10 min after releasing aortic cross-clamp than 5 min before CPB, and the apoptosis index in Test group was lower than that in Control group, all P<0.05. The protein expressions of Bcl-2 and Bax were obviously increased at 10 min after releasing aortic cross-clamp than 5 min before CPB in both groups. Compared with Control group, Test group presented the higher Bcl-2 protein expression and lower Bax protein expression, all P<0.05.
Conclusion: Cold self-blood cardioplegia with ulinastatin could protect immature myocardum from ischemia-reperfusion injury in VSD infants during CPB operation in clinical practice.