Objective To introduce the modeling method of pendulum-like modified rat abdominal heart heterotopic transplantation model and evaluate the quality of the model. Methods An operator without transplantation experience performed 15 consecutive models, recorded the time of each step, changes in body weight and modified Stanford scores, and calculated the surgical success rate, postoperative 1-week survival rate and technical success rate. Ultrasound examinations was performed in 1 week postoperatively. Results The times for donor heart acquisition, donor heart processing, recipient preparation and transplantation anastomosis were (14.3±1.4) min, (3.5±0.6) min, (13.6±2.1) min and (38.3±5.2) min respectively. The surgical success rate was 87% (13/15), and the survival rate 1 week after operative was 100% (13/13). The improved Stanford score indicated a technical success rate of 92% (12/13), and the postoperative 1-week ultrasound examination showed that grafts with Stanford scores ≥3 had detectable pulsation and blood flow signals. Conclusions The pendulum-like modified rat abdominal heart heterotopic transplantation improved model further optimizes the operational steps with a high success rate and stable quality, may be chosen as a modeling option for basic research in heart transplantation in the future.

Objective:To explore the effect of group painting art therapy on negative symptoms, the cognitive status and social function of patients with schizophrenia during rehabilitation.Methods:A total of 114 patients with schizophrenia recovered from May 2018 to May 2019 in Zhangjiakou Shalingzi Hospital. They were divided into two groups according to the random number table method with 57 case in each group, the control group was given routine nursing, and the observation group received group painting art therapy on the basis of routine nursing. The Positive And Negative Symptoms Scale (PANSS), MATRICS Consensus Cognitive Battery(MCCB), and Social Disability Screening Schedule (SDSS) were used to evaluate the symptoms, cognitive status, and social function improvement of the two groups before and after intervention.Results:There were no significant differences in the negative symptom scores and positive symptom scores of the PANSS between the two groups of patients before the intervention ( P>0.05). After the intervention, the scores of negative symptoms and general psychopathology were (11.83 ± 3.19), (17.30 ± 4.93) points in the observation group and (13.57 ± 2.85), (20.34 ± 5.12) points in the control group, the differences were significant ( t values were 2.789, 2.932, P<0.05). After the intervention, the 7-dimensional MCCB scores of the two groups of patients decreased, and the scores of the observation group were significantly lower than those of the control group ( t values were 2.046-3.238, P<0.05). After the intervention, the score of SDSS was (11.63±2.71) points in the observation group and (13.84 ±3.14) points in the control group, the differences were significant( t value was 3.653, P<0.01). Conclusions:The use of group painting art therapy in patients with schizophrenia during rehabilitation can promote the improvement of negative symptoms and improve the cognitive and social functions of patients.

Objective:To explore the effect of alcohol abstinence intervention based on timing theory on patients with alcoholic liver disease.Methods:A total of 106 patients with alcoholic liver disease hospitalized in the Department of liver disease of Taian Medical District, 960th Hospital of Chinese PLA from July 2018 to June 2019 were selected by convenience sampling method and divided into observation group and control group by random digits table method, 53 cases in each group. The control group received routine nursing, and through the improvement of patients' cognition and support system, implemented short abstinence intervention during hospitalization; the observation group received abstinence intervention based on timing theory on the basis of the control group intervention. At 1 month and 6 months after discharge, the differences of rehydration rate, alcohol dependence and physical and mental status between the two groups were compared.Results:Finally, 49 cases in the control group completed the study, and 51 cases in the observation group completed the study. The rehydration rates of the observation group were 21.57%(11/51) and 15.69%(8/51) respectively at 1 month and 6 months after discharge, while those of the control group were 40.82%(20/49) and 36.73%(18/49) respectively at 1 month and 6 months after discharge. The difference was statistically significant ( χ2 values were 4.328, 5.754, P<0.05). The alcohol dependence scores were 0(2,3), 0(1,2) in the observation group and 2(0,3), 3(1,4) in the control group at 1 month and 6 months after discharge, and the difference was statistically significant ( Z values were -6.719, -7.345, P<0.01). There was no significant difference in the score of Symptom Checklist-90(SCL-90) before intervention and 1 month after discharge between the two groups ( P>0.05). Six months after discharge, the score of SCL-90 was 8.26 ± 1.37 in the observation group and 10.11 ± 1.68 in the control group, and the difference was statistically significant( t value was 6.046, P<0.01). Conclusions:The application of timing theory in alcohol abstinence of patients with alcoholic liver disease can significantly reduce the relapse rate and the degree of alcohol dependence of patients with alcoholic liver disease, improve the physical and mental state of patients.

Severe acute respiratory syndrome coronavirus（SARS-CoV-2）is highly infectious and people are generally susceptible to it. In this article,we reviewed current research into the epidemiological characteristics of coronavirus disease 2019（COVID-19）,introduced China's effective prevention and control experience,preliminarily summarized the phased Results of China's fight against the COVID-19,and reviewed the early measures taken by Singapore,Japan,Italy,Iran and South Korea. We recommended China’s prevention and control measures in response to COVID-19 to the world;appealed to pay attention to non-drug interventions,to strengthen the cooperation and sharing of COVID-19 epidemic data and research,to improve the global ability in respond to public health emergencies,and to reduce the impact of COVID-2019 on the sustainable development of economy and society.

To evaluate the long term cardiopulmonary function after Fontan operation. Methods 10 patients who received Fontan operation were followed for(26 ±4) years in our hospital. 7 males and 3 females,(30. 7 ± 13. 2) years old(20 -60 years). All patients were diagnosed by echocardiography, CTA, 24 h ECG, cardiac catheterization, pulmonary angiography, radionuclide pulmonary blood perfusion and cardiopulmonary exercise test. Results Echocardiography shows: LVEF(0. 49 ± 0. 04), more than moderate atrioventricular valve regurgitation in 7 cases. CTA shows: there was no anastomotic stenosis, arteriovenous fistula in 4 cases. 24 h ECG shows: sinus rhythm in 7 cases, frequent paroxysmal atrial tachycardia in 1 case, atrial flutter in one and atrial fibrillation in one. Cardiac catheterization and pulmonary angiography show: the average pulmonary artery pressure(17. 8 ±2. 0)mmHg, average pulmonary resistance(4. 17 ±0. 56) woods. Radionuclide pulmonary blood perfusion shows: pulmonary blood of upper lung was reduced significantly with unbalanced distribution. Cardiopulmonary exercise test shows: both of lung ventilation function and heart reserve function decreased moderately or severely. Protein losing enteropathy was found in 1 case. Conclusion The decrease of cardiopulmonary function is found after Fontan operation during the long-term follow up for 20 years, especially for cardiac function. More attention should be paid to the early postoperative atrioventricular valve regurgitation. Unbalanced distribution of pulmonary blood is Found in long term. The incidence of arrhythmia after extra conduit Fontan operation is lower than other methods.

Objeetive We sought to compare the safety and efficacy of cut-and-sew Cox-maze Ⅲ procedure for atrial fi brillation associated with degenerative mitral regurgitation,by comparing with patients without atrial fibrillation.Methods From May 2013 to November 2015,217 patients underwent mitral valve repair were enrolled,including 145 without atrial fibrillation(control group) and 28 received concomitant cut-and-sew Cox-maze Ⅲ procedure (treatment group).Propensity scores were calculated on the basis of 16 known preoperative factors and yielded the best matched patients.Safety and outcomes were compared between the two matched groups.Results 28 pairs of patients were matched successfully.No hospital deaths occurred and the major complications showed no statistical differences (P ＞ 0.05).Cardiopulmonary bypass time and crossclamp time,proportion of amiodarone use and temporary pacemaker use,and postoperative hospital stay in the treatment group were higher than those in the control group(P ＜0.001).Patients were followed up from 6 months to 3 years,and no patients occurred deaths and strokes.After 6 months,there were no significant differences in the rates of sinus rhythm and drug free between the two groups (P ＞ 0.05).In both groups,left atrial diameter and left ventricular diameter decreased,and ejection fraction increased compared with those before operation.Atrial function in the treatment group recovered 3 years after operation.At the latest follow-up,patients in both groups were all at NYHA functional class Ⅰ.Conclusion The additional cut-and-sew Cox-maze Ⅲ procedure for treatment of degenerative mitral disease complicated by atrial fibrillation does not increase the operative risks of mitral valve repair,and had early and mid-term outcomes similar to that of patients without atrial fibrillation.

Objective The study aimed to evaluate the short and middle term results in the patients with tetralogy of Fallot(TOF) after one-stage repair and staged repair.Methods A total of 459 TOF younger children less than five-year-old between January 2009 and December 2013 had received surgical repair,including 416 patients by one-stage repair(group Ⅰ)and 43 patients by staged repair(group Ⅱ).Among them,245 were male and 214 were female.The average repair surgical age was 27.8 ranged from 4 to 60 months,average palliation age was 15.4 ranged from 3 to 40 months.23 perioperative and follow-up parameters were assessed including sex,age,weight,preoperative clinic symptom,ratio of McGoon,pulmonary artery index,Z score of pulmonary annulus,cardiopulmonary bypass time,aortic cross-clamping time,type of VSD repair,type of RVOT procedure,Peak RV/LV pressure radio,RV-PA pressure grade,mortality,severely low cardiac output syndrome,hypoxemia,extubation time,ICU time,fellow-up time,left ventricular eject faction,RV index of myocardial performance (MPI),tricuspid annular plane systolic excursion(TAPSE) and pulmonary regurgitation.Results Compared with group Ⅰ,age and weight were significantly lower in patients in group Ⅱ[(19.1 ± 16.4) months vs.(21.1 ± 11.2) months,P ＜ 0.05) and(19.1 ±16.4) kgvs.(21.1 ±11.2) kg,P ＜0.01].The Z score of pulmonary annulus of patients in group Ⅱ were significantly less than those in group Ⅰ (-3.69 ± 2.36 vs.-2.50 ± 1.95,P ＜ 0.01).The ratio of repairing VSD by RV incision and using TAP in patient of group Ⅱ were significantly more than those in group(27/43 vs.71/413,P ＜0.01),(41/43 vs.221/413,P ＜0.01).There was no difference of mortality,complication,extubation time and ICU time bewteen two groups.All patients followed up 12-52 months,there was no difference of LVEF,MPI and TAPSE between two groups.However,the severity of pulmonary regurgitation in patients of group Ⅱ was significant more than those of group Ⅰ (47.6％ vs.32.1％,P ＜ 0.01).Conclusion The early and mid-term results in the the young children patients with TOF after one-stage repair or staged repair were good.Although the prior palliative shunt could promote the development of the hypoplasia pulmonary arteries in the young children patient,it may related to the technique of repairing operations and the postoperative pulmonary regurgitation.

Objective To study the radiofrequency ablation (RA) and vagal denervafion (VD) in surgical treatment of long-standing atrial fibrillation (AF) associated with rheumatic heart disease (RHD).Methods Retrospective analysis the cardiac rhythm by 24-hour Holter monitoring during 5-year follow-up after total Maze procedure accompanied rheumatic mitral valve replacement.Between June 2006 and December 2007,a total of 173 consecutive patients with long-standing AF-associated RHD underwent mitral valve replacement and ablation maze procedure,92 cases had RA alone and 81 had RA + VD.Results Although Kaplan-Meier curve shows that the freedom from AF at 5 years follow-up time were similar(P =0.718),the percentage of antiarrhythmic drug therapy was significant higher in the RA group during early postoperative period(4th month,54.1％ vs.34.7％,P=0.017;5th month,39.2％ vs.21.3％,P=0.018;6th month,23.0％ vs.10.7％,P =0.044),and the percentage of those free by AF was significant lower(6th month,82.2％ vs.93.8％,P =0.023;1st year,76.1％ vs.89.9％,P=0.019).Conclusion Total maze procedure with bipolar radiofrequency ablation is effective to treat longstanding AF associated with rheumatic valve disease.Vagal denervation helped to maintain stable sinus rhythm and lower antiarrhythmic drug therapy at the early stage,but there was no additional benefit after the 1 st year of follow-up,it may be caused from the reactivation of vagal plexus electrical activity.

Objective To evaluate the surgical strategy for pulmonary valve preservation in repair of tetralogy of Fallot (TOF) and analyze the outcomes in young children patients.Methods A total of 211 TOF younger children less than threeyear-old between January 2009 and December 2015 had received pulmonary valve-sparing(PVS) surgical repair.At the end of the procedure,the peak RV/LV pressure ratio(PRV/PLV) and transannular pressure gradient were performed in all patients.114 patients had higher PRV/PLV rati ≥ 0.8.The former 54 patients,right ventricle infundubulum sparing (RVIS) stragery were made to relieve the RVOTO.However,only 8 patinets of the later 60 cases had received RVIS in TOF repair,whose systemic blood pressure was instable with the large dose of dopamine≥10 μg · kg-1 · min-1 and epinephrine≥0.05 μg · kg-1 · min-1 or the transannular pressure gradient≥30 mmHg (1 mmHg =0.133 kPa).114 patients were divided by two group(52 cases in PVS group and 62 cases in RVIS group) and compared by the early outcomes.Results The median cardiopulmonary bypass time of RVIS group was significantly more than that of PVS group[(110.3 ± 12.0)min vs(77.7 ± 10.0)min].The postoperative index of the patients in PVS group,including transannular pressure gradient [(21.0 ± 5.4) mmHg vs (16.0 ± 3.6) mmHg,P ＜ 0.05],PRV/PLV ratio(0.82 ± 0.03 vs.0.67 ± 0.12,P ＜ 0.01),median using time of dopamine and epinephrine[(6.03 ±9.60)days vs.(4.20 ±1.90)days,P＜0.01],median extubation time[(81.2 ±27.6)h vs.(38.5 ±33.0) h,P ＜ 0.01],ICU stay time [(6.3 ± 1.7) days vs.(4.3 ± 1.9) days,P ＜ 0.01],using of peritoneal dialysis (8/52 vs 4/62,P ＜ 0.01)were more than those in RVIS group.There was no difference of mortality between two groups.Fellow up 12-50 months,there was no difference of LVEF,MPI and TAPSE between two groups.However,the severity of pulmonary regurgitation in patients of PVS group was significant less than those of RVIS group.Conclusion PVS and RVIS in TOF repair could decrease the severity of pulmonary regurgitation after operation.

Objective To evaluate the short-term-outcome of MVP in the treatment of moderate IMR patients with CABG.Methods Data from 129 patients with moderate IMR who underwent surgical treatment in our department from June 2007 to September 2011,57 patients(44.2％) underwent CABG combined with MVP,and 72 patients(55.8％) underwent CABG.Postoperative follow-up of patients with heart function NYHA grade to evaluate the clinical status of patients,with LVESD,LVEF,LVEDD to evaluate the reverse of left ventricular remodeling;The postoperative residual mitral regurgitation and major cardiac cerebral vascular events were recorded.Results There was no significant difference between two groups in the preoperative data(P ＞ 0.05).The mortality rate was 3.9％ (5 cases),2 cases (2.8 ％) died in CABG group,3 cases (5.3 ％) died in the combined surgery group.The average follow-up was 24 months,9 cases of late death (5 in CABG group,4 in CABG + MVP group),the cumulative survival rate(P =0.645) and the major cardiovascular events(P =0.761) of the two groups were not statistically different.The degree of mitral regurgitation(P ＜ 0.01) was significantly decreased in the combined surgery group.Compared with the preoperative state,the two groups of left ventricular remodeling indicators such as LVESD,LVEF,LVEDD were significantly improved(P ＜0.05),but the difference between two groups was not significant(P ＞0.05).NYHA heart function classification was significantly improved (P ＜ 0.001).Conclusion MVP can effectively improve the reverse flow of patients with moderate IMR,but CABG combined with MVP can not bring more benefits in the reversal of left ventricular remodeling,short-term survival and cardiac function.