Objective To evaluate the short term and long term outcomes of primary percutaneous transluminal coronary angioplasty (PTCA) for acute anterior wall myocardial infarction (AMI) complicated with pump failure Methods 28 patients admitted within 12 hours after the onset of AMI and complicated with heart failure underwent primary PTCA and stent implantation The short term and long term therapeutic effects were observed Results The infarct related coronary arteries (IRCA) of the 28 patients were all LADs with occlusions at the proximal or beginning segment and TIMI flow was 0 Ⅰ Single vessel disease was showed in 15 patients,double vessel disease in 9 and triple vessel disease in 4 The immediate procedural success rate was 100% with TIMI flow Ⅲ in all IRCAs One patient without stent implantation had a recurrent chest pain 2 days after procedure and died of acute pulmonary edema During 1～36 month follow up of the 27 survivors, no death occured and the average LVEF was showed 59 8?6 5% by echocardiography Conclusion Primary PTCA for AMI complicated with pump failure was safe and effective to improve the short term and long term outcomes

Objective To evaluate the efficacy and safety of intravenous thrombolysis with urokinase combined with emergency interventional therapy for acute myocardial infarction(AMI). Methods Fifty two patients with first AMI (≤12 h from onset)were randomized to thrombolysis plus PCI group and primary PCI group,the patency rate of infarct related artery (IRA) before intervention,the procedural success rate,the incidence of bleeding complications and acute ischemic events during hospitalization and the left ventricular ejection fraction (LVEF) measured by echocardiography before discharge were compared.Results The IRA patency rate in the thrombolysis plus PCI group (61 5%) was significantly higher than that in the primary PCI group (19 2%) ( P 0 05),no major bleeding complication and acute ischemic event occurred during hospitalization in both groups,the LVEF in the thrombolysis plus PCI group (64 3?5 6)% was higher than that in the primary PCI group(54 8?4 9)% before discharge ( P

Objective To explore the relationship of the number of balloon inflations during primary percutanoeus coronary intervention(PCI) with myocardial perfusion and the extent of myocardial necrosis,and to identify the potential clinical efficacy of ischemic postcondioning in patients undergoing Primary PCI.Methods One hundred and fourty patients with ST-segment elevation myocardial infarction(STEMI) who underwent primary PCI were eligibly enrolled for retrospective analysis.The infarct-related artery(IRA) in all patients had to be either left anterior descending artery(LAD) or right coronary artery(RCA) with TIMI 0 flow grade and no collateral filling prior to intervention,and had to be completely reperfused with TIMI Ⅲ flow grade after PCI.Patients with cardiac arrest,cardiogenic shock,previous MI and pre-infarct angina were excluded.Patients were divided into two groups for analysis based on the number of balloon inflations performed during primary PCI:Group A included all patients in whom 1-2 inflations were applied,while patients in Group B received 3 or more inflations.Myocardial perfusion was evaluated by myocardial blush grade and ST-segment resolution.The extent of myocardial necrosis was evaluated by peak values of CK and CK-MB release and predischarge left ventricular ejection fraction(LVEF) measured by echocardiogram.Results The 2 groups showed similar baseline characteristics,while patients in Group B received more balloon inflations than those in Group A(4.7?0.9 vs.1.8?0.2,P0.05),but decreased to 1.65?0.49 mm and 0.98?0.37 mm(P

Objective To investigate the influence on the behavior of withdrawal and relapse after deep brain stimulation of bilateral nucleus accumbens in morphine-dependent rats. Methods The rats with a strong unconditioned preference were discarded in preconditioning test, the selected rats were distributed into five groups randomly. After operation,morphine hydrochloride was injected subcutaneously into SD rats for 12 days (once every day,initial 5 mg/kg,increasing by 5 mg/kg per time,stable in 20 mg/kg ). A modified electrical circuit was used to procedure the DBS,the parameter was 130 Hz,150 A,60 s,l h/d,14 d. CPP test was used to exam the effect of DBS. A minor morphine dose (3 mg/kg) was injected to induce the behavior of relapse, and CPP was tested again after 24 h. Two-way ANOVA was performed on the data with Bonferroni posttest. Result ①After CPP training,CPP score of group morphine, morphine + sham and morphine + DBS was ( 155. 87 ± 20. 45 ) s, (107.33 ± 18.10)s,(135.45 ±22.09)s,and had significant difference with group of control( ( -70.34 ± 15.40) s)(t = 9.45,P＜0.01; t = 6.94,P＜0.01;t = 8.04,P＜0.01).②After 7 days' DBS,the CPP score in group of morphine + DBS reduced significantly compared to group of morphine( t = 4.21, P＜0.01) and morphine + sham( t=1.10, P＜0.05).0n the 14th day,there was more pronounced reduction ( t = 5. 15, P＜0.01; t = 3.92, P＜ 0.01). ③ 24 hours after the minor morphine dose was injected,the CPP score in morphine + DBS didn't increase significantly, and had significant difference with group of morphine ( t = 4.04, P＜0.01) and morphine + sham ( t= 4. 13, P＜0.01). Conclusion DBS bilateral nucleus accumbens in morphine-dependent rats can interfere the behavior of morphine-induced CPP and relapse.

ObjectiveTo construct the eukaryotic coexpression plasmid CEA/IL-2, and to lay the foundation for further studying CEA nucleiotide vaccine , adjuvant and their effects of special antitumor immunity.MethodsThe eukaryotic expression plasmid (pcDNA3-CEA)containing the gene coding for CEA was obtained by RT-PCR and gene recombination techniques.Using enzymolysis,ligation and other techniques,an eukaryotic coexpression plasmid (pIRES-CEA/IL-2)containing two expression unites of CEA and IL-2 gene connected with internal ribosome site was constructed.ResultsThe coexpression plasmids were transformed into COS7 cells and expression of two proteins were demonstrated by ELISA, and flow cytometer and elecsy.CEA and IL-2 were (23.73?0.26)ng/ml,and(20.17?0.13)ng/ml respectively.ConclusionsThe eukaryotic expression plasmids pIRES-CEA/IL-2 could be successfully constructed and transformed into COS7 cells.Expression of two proteins were demonstrated with no difference on expression.

Background There are patients who underwent emergency coronary angiography (CAG) but did not receive percutaneous coronary intervention (PCI). The aim of this study was to analyze these reasons. Methods This is a single-center retrospective study. We recruited 201 consecutive patients who received emergency CAG but did not receive PCI. To investigate the value of the Global Registry of Acute Coronary Events (GRACE) score in predicting PCI possibilities in non-ST segment elevation acute coronary syndrome (NSTE-ACS) pa-tients, we recruited 80 consecutive patients who presented with NSTE-ACS and received emergency CAG as well as emergency PCI. Re-sults Among the 201 patients who received emergency CAG but did not receive PCI, 26%patients had final diagnosis other than coronary heart disease. In the patients with significant coronary artery stenosis, 23 patients (11.5%) were recommended to coronary artery bypass grafting (CABG), one patient (0.5%) refused PCI; 13 patients (6.5%) with significant thrombus burden were treated with glycoprotein IIb/IIIa receptor antagonist;74 patients (36.8%) were treated with drug therapy because no severe stenosis (>70%) was present in the crime vessel. Moreover, 80 of the 201 patients were presented with NSTE-ACS (excluding those patients with final diagnosis other than coronary heart disease, excluding those patients planned for CABG treatment), referred as non PCI NSTE-ACS. When comparing their GRACE scores with 80 consecutive patients presented with NSTE-ACS who received emergency CAG as well as emergency PCI (referred as PCI NSTE-ACS), we found that PCI NSTE-ACS patients had significantly higher GRACE scores compared with non PCI NSTE-ACS patients. We then used Receiver Operator Characteristic Curve (ROC) to test whether the GRACE score is good at evaluating the possibilities of PCI in NSTE-ACS patients. The area under the curve was 0.854 ± 0.030 (P<0.001), indicating good predictive value. Furthermore, we analyzed results derived from ROC statistics, and found that a GRACE score of 125.5, as a cut-off, has high sensitivity and specificity in evaluating PCI possibilities in NSTE-ACS patients. Conclusions Our findings indicate that the GRACE score has predictive value in determining whether NSTE-ACS patients would receive PCI.

Objective To analyze the relationship between fasting plasma glucose (FPG) level and complexity of coronary artery lesions in patients with coronary stenosis by angiography. Methods The data of clinic and coronary angiogram (CAG) were retrospectively collected in 929 patients with established coronary stenosis by coronary angiography at Peking University Third Hospital from January 2009 to January 2011. The patients were grouped according to SYNTAX score, and the relationship between FPG level and SYNTAX score were analyzed using bivariate, Multivariate stepwise regression and logistic regression analysis. Results ①929 patients were devided into three groups:47 cases into low risk group (score<22), 189 into moderate risk group (score≥22 and<33) and 639 into high risk group (score≥33). Intergroup analysis showed that age (P=0.000), FPG level [5.20 (4.70,6.30) mmol/L, 5.70 (4.90,7.15) mmol/L, 5.80 (5.30,7.60) mmol/L, P=0.000], proportions of FPG abnormality [283 (40.8%), 100(52.9%), 28(59.6%), P=0.001] and patients with diabetes history (P=0.003) were increased along with SYNTAX score elevated.②Correlation analysis showed correlativity (r=0.167, P=0.000) between SYNTAX score and FPG. In non-diabetes history subgroup, correlation between SYNTAX score and FPG remained signiifcant (r=0.149, P=0.000). However, in diabetes history subgroup, the correlation was not significant. ③ Multivariate stepwise regression analysis showed an independent correlation between FPG and SYNTAX score (β=0.452, P=0.002). In non-diabetes history subgroup, the correlation remained significant (β=1.039, P=0.000).④ When moderate-high risk group serve as dependent variable, and age, gender, CAD risk factors and FPG serve as independent variables, logistic regression analysis screened out two variables:age (whole group:OR 1.033, 95%CI 1.017 ~ 1.049, P=0.000;non-diabetes history subgroup:OR 1.039, 95%CI 1.020 ~ 1.059, P=0.000) and FPG (whole group: OR 1.114, 95% CI 1.038 ~ 1.195, P=0.003; non-diabetes history subgroup:OR 1.299, 95%CI 1.088 ~ 1.387, P=0.001). Conclusions FPG is likely to relfect complexity of coronary artery lesions and predict SYNTAX score in patients with coronary stenosis, especially in patients without diabetes history.

Objective: To observe the midterm outcomes of“2-staged”hybrid coronary revascularization (HCR) for treating the patients with multi-vessel coronary artery disease (CAD) and to evaluate the feasibility, safety and effcacy of“2-staged”HCR.
Methods: A total of 73 relevant patients received elective “2-staged” HCR in our hospital from 2012-01 to 2014-06 were studied. There were 50 (68.5%) male and 23 (31.5%) female at the age of (61.1±10.7) years and all patients had multi coronary artery lesions including left anterior descending (LAD) artery. The key points of“2-staged”HCR were as follows:double-chamber intubation with general anesthesia, small incision between 4-5 ribs of left front thorax, take left internal mammary artery (LIMA) by direct view and make anastomosis of LIMA and LAD with heartbeat. At (3-5) days post-minimally invasive direct coronary artery bypass (MIDCAB), coronary angiography (CAG) was conducted to confirm that LIMA-LAD bypass vessel was unobstructed; then percutaneous coronary intervention (PCI) was performed in non-LAD coronary artery for stent implantation. Post-operative echocardiography, chest X-ray and ECG were examined in each year;coronary CTA or CAG would be taken if the patients with myocardial ischemia.
Results: All patients finished“2-staged”HCR smoothly and no operative death occurred. The average surgical time was (152.9±43.8) min and (2.6±0.5) coronary branches were treated, total post-operative drainage volume was (558.6±441.3) ml, red blood cell transfusion was (0.8±1.9) U, mechanical ventilation time was (10.5±13.0) h. The interval between MIDCAB and PCI was (5.3±2) days and (1.6±0.7) stents was implanted. During post-operative follow-up period, there 1 (1.4%) patient died, 3 (4.1%) with recurrent myocardial ischemia, 1 (1.4%) with in-stent restenosis and received PCI again, 4 (5.5%) with MACCE.
Conclusion: “2-staged”HCR is a safe and feasible operation with satisfactory peri-operative and mid-term outcomes;it is suitable for the patients with multi-vessel CAD including severe LAD lesions.

Objective:To investigate the effect of pelvic rotation around coronal axis on the placement angle of acetabular prosthesis after total hip arthroplasty.Methods:According to Murary's definition, the angle between the acetabular axis and the sagittal plane was defined as the acetabular abduction angle, and the angle between the acetabular axis and the coronal plane as the anterior inclination angle. A simple mathematical solid geometry model was established by using the mathematical software GeoGebra to simulate the dynamic changes of the acetabular prosthesis when it rotated around the coronal axis, and the calculation formula of the dynamic changes of the anterior inclination and abduction angle of the acetabular prosthesis was derived. MatLab software was used to generate the function graph of pelvis forward inclination and abduction angle and deduce the motion of acetabular prosthesis.Results:The dynamic changes of acetabular tilt angle and abduction angle when the pelvis rotated around the coronal axis were functionally related to the anterior-posterior tilt of the pelvis in a nonlinear pattern. When the pelvis rotates around the coronary axis, the anterior inclination angle formula is α 1=arcsin (sinβ 1×cosα×cosθ+cosβ 1×sinα); When the acetabulum axis faces downwards the abduction angle formula is θ 1=arccot (cosβ 1×cotθ-sinβ 1×tanα/sinθ); When the acetabulum axis faces upwards the abduction angle formula is θ 1=π-abs[arccot (cosβ 1×cotθ-sinβ 1×tanα/sinθ)] withα being the initial acetabular forward angle, θ being the initial acetabular abduction angle, α 1 being the forward angle of the acetabular prosthesis after pelvic rotation, θ 1 being the external expansion angle of the acetabular prosthesis after pelvic rotation and β 1 being the rotation angle of the pelvis around the coronal axis. When the pelvis is tilted backward, the anterior inclination angle of the acetabular prosthesis increases first and then decreases, and the abduction angle continues to increase. When the pelvis is tilted forward, the abduction angle decreases first and then increases, and the anterior inclination angle continues to decrease to negative. Conclusion:When the initial anterior inclination angle and abduction angle of acetabular prosthesis change, the curve of anterior inclination and abduction angle change accordingly. The larger the initial anterior inclination angle is, the faster it reaches its peak value, and the larger the peak value is, the faster the abduction angle changes. The larger the initial abduction angle is, the slower the initial anterior inclination angle and the abduction angle change.