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Objective To compare the effect of establishment of Coronary angiography model in minipigs with right femoral Judkins catheter and 5F universal catheter .Methods Ninteen minipigs were randomized into two groups with right femoral Judkins catheter (ten minipigs)and 5F universal catheter(nine minipigs). Success rate,operation time,X-ray irradiation time were observed .Results The success rate, operation time ,X-ray irradiation time after Coronary angiography in right femoral Judkins catheter group was 100%,(5.68 ±3.53 ) min,(20.84 ±2.45 ) min,in 5F universal catheter group was 88.8%,(6.98 ± 4.13 )min,(26.23 ±8.45 )min.This difference was signifficant( P <0.01).Conclusion Coronary an-giography in minipigs with right femoral Judkins catheter has the advantage of high success rate , less opera-tion time, X-ray irradiation time , is more suit to coronay anatomy of the minipig .
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Objective To investigate the feasibility and methodology of active fixation lead on patients under right ventricular outflow tract septum(RVOTS) pacing.Methods Fifty DDD pacemaker patients were enrolled 31 male,23 female,50~86 years old,mean age 67.7?8.6.Ventricular active fixation lead was implanted in the right ventricular apex(RVA) and RVOTS successively and pacing parameter was tested.Results The success rate of RVOTS active fixation lead implantation was 98.15%.Mean lead threshold was 0.73?0.12 V.Pacing QRS duration show a significant difference between RVOTS pacing and RVA pacing,130.45?18.24 and 153.11?20.10,respectively(P
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Objective To compare the cardiac function effect of right ventricular septum(RVS) pacing with that of right ventricular apex(RVA) pacing.Methods One hundred and six patients with indication of dual chamber pacemaker implantation were divide into two groups randomly.In each patient,influence of different pacing site to LVEF and pacing parameter were examined and left ventricular eject fractions were compared.Results All patients' operation were successful,LVEF of RVS group compared with that of RVA showed a significant difference.Conclusion The cardiac function are significantly different between right ventricular septum pacing group and right ventricular apex group.
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Objective To observe the effectiveness and expenses of the AMI patients with facilitated PCI,and to search for a new pattern for them.Methods 81 AMI patients were divided into 2 groups.One group accepted facilitated PCI(n=42) and the other group took routine PCI(n= 39).We compared the successful rate,death rate,left ventricular function between the two groups in infusing the infarction related artery(IRA).Results The successful rate of facilitated PCI group is 41/42,while routine PCI group is 31/39.There was no dead patient in facilitated PCI group,but six patients died in the routine PCI group.The EF in facilitated PCI group was(53.8?6.7)% and in routine PCI group it was(50.2?5.2)%.Conclusion Facilitated PCI is a safer and more efficient method than routine PCI,which will be worthy of further research to treat AMI.