By using VB program and FLASH making technique,the forming principle of electrocardiogram is vividly displayed,so that the students can understand it well.

Objective To investigate the diagnostic accuracy of 3-dimensional reconstruction(3DR) coronary angiography in the evaluation of coronary artery disease compared with conventional quantitative coronary angiography with IVUS result as the reference standard.Methods Twenty vessel segments in nineteen patients who underwent coronary angiography and IVUS were studied.With the IVUS result as the reference standard,the 3D reconstruction images and the single plane(2D) images of each angiograph were retrospectively studied and compared.Results In all the 20 segments,the minimal vessel diameter/area rate of the stenosed vessels and the reference vessels,and the minimal cross-sectional stenosis rate had no significant differences among the conventional 2D angiograph the 3DR angiograph and the IVUS results.According to the IVUS results,all the 20 vessel/segments were further divided into two groups which were:the eccentric stenosis group(n=7) and the centripetal stenosis group(n=13).In the centripetal stenosis group,all the angiographic parameters detected by the three methods had no statistical difference.In the eccentric stenosis group,the 3DR angiograph showed more consistent results as detected by IVUS compared with the 2D angiograph in terms of cross-sectional stenosis rate.Conclusion Three dimentional reconstruction of coronary angiography showed higher accuracy in the quantitative analysis of coronary artery stenosis compared with conventional coronary angiography,especially in eccentric stenosis.

Objective To evaluate the efficacy of Cypher and Taxus drug eluting stent (DES)in the treatment of coronary artery diease. Methods A total 162 patients underwent coronary artery stenting with eigher the Cypher (n=93) or the Taxus (n=69) drug eluting stent. All patients received follow up angiography. Results The angiographic restenosis rate and TLR rate were 10.8% and 5.4% in the Cypher group whereas 11.6% and 5.8% in the Taxus group. There were no statistical differences between the two groups. In-Stent Late Loss and In-Lesion Late Loss were found less in the Cypher group than in the Taxus group. Conclusion Both the Cypher DES and the Taxus DES decreased the restenosis and TLR rates but the Cypher stent has a lower late loss rate than the Taxus stent.

Objective To evaluate the angiographic effect in patients treated with Taxus DES implantation in clinical practice. Methods Two hundred and ninty-seven patients were treated with Taxus DES implantation and 134 patients underwent angiographic follow-up from 5 to 15 months. Results Angiographic follow-up the in-stent late loss was higher than pro-in-lesion and dis-in lesion late lumen loss(0.37 vs 0.18 vs 0.12mm,P

Objective To evaluate the effects of Long xuejie capsule combined with Badger Oil on head and neck cancer radiotherapy -induced radiation injuries of skin application value.Methods The received radiation therapy in Ⅱ -Ⅳacute radioactive skin injury in 128 cases were selected.Used the envelope method,they were ran-domly divided into the research group and the control group.Outside the team starts from a radioactive dermatitis with badger oil apply skin irradiation area,with a dragon dragon's blood powder coating outside skin area.Apply 1 -2 times a day,seven days for a course of treatment until wound healing.The control group from a radioactive dermatitis with 0.9% sodium chloride injection,dexamethasone,gentamycin gauze wet moist wound after 30min,1 -2 times a day, 7 days for a course of treatment.Compare the therapeutic effect of the two groups of wet radioactive dermatitis and interruption of radiotherapy and skin lesion healing time.Results The effective rate of the study group was 90.6%, the cure rate was 100%.The effective rate of the control group was 80%,the treatment rate was 62.5%.There was a significant difference between the two groups (χ2 =14.64,11.86,11.48.P <0.01).The vast majority of the study group in a week skin lesions healed,no patients discontinued radiotherapy,the control group 13 cases of termination of radiotherapy,interruption time study group (3.8 ±1.4)d,group interrupt time (8.8 ±1.6)d,lesion healing time of the study group (5.6 ±0.6)d,lesion healing time in the control group (10.6 ±0.8)d.There was a significant differ-ence between the two groups (χ2 =6.68,6.95,11.48,all P <0.05,significant difference).Conclusion Longxuejie capsule combined Badger Oil has significant efficacy in the treatment of radioactive skin injury.It could shorten the healing time,and the method is convenient,economic,security and has certain clinical value.

Objective To isolate mesenchymal stem cells(MSCs) from the mobilized peripheral blood and transdifferente them into cardiomyocytes for establishing an non-invasive cell source of stem cell transplantation for myocardial infarction therapy.Methods To granulocyte-colony stimulating factor((30 ?g/kg?day)) was injected into New Zealand White rabbits subcutaneously for 5 days,then MSCs were isolated from peripheral blood.After treatment with 5-azacytidine for 24 hours,the cultured cells were evaluated by immunohistochemical staining for actin,desmin and cardiac-specific troponin T(cTNT).Results After treatment with 5-azacytidine,the MSCs from the mobilized peripheral blood showed spindle-like and multinucleation,some cells aggregated and formed a ball-like appearance at 2 weeks.The ball-like cells and some spindle-like multinuclear cells were found with positively staining of actin,desmin and cTNT.Conclusion MSCs can be isolated from the mobilized peripheral blood and transdifferented into cardiomyocytes in vitro,suggesting that MSCs from the mobilized peripheral blood may be a new and non-invasive cell source of stem cell transplantation in myocardial infarction therapy.

Objective To discuss the feasibility of endovascular treatment for traumatic arterial lesions.MethodSix patients treated by endovascular stent grafts were retrospectively reviewed.Result Patients consisted of left common carotid artery pseudoaneurysm, right subclavian arteriovenous fistula,thoracic aortic pseudoaneurysm, righ iliac arteriovenous fistula,left iliac arterial pseudoaneursym and femoral arterial pseudoaneurysm. All of the patients abtained the blood flow reconstruction without any complications after endoluminal therapy under local anesthesia. No occlusion appeared during follow up.Conclusion The stent grafts appear to be associated with a low morbidity, high success rate, and less traumatic procedure. Endovascular management is an important tool for the treatment of vascular trauma.

Objective To explore the reasons why patients with Keshan disesse complicated with hypertension and their interaction in Fuyu County, Heilongjiang Province. Methods Fifty-three patients with Keshan disease were investigated in January, April and July in 2007. Blood pressure was measured and the risk factors of hypertension were investigated. According to the diagnostic criteria of hypertension, patients were divided into hypertension group and non-hypertension group, and then the risk factors of hypertension, as well as the course of Keshan disease, were compared between the two groups. The risk factors include age, gender, family history of hypertension, salt intake in diet, smoking, drinking and obesity. Results The age of hypertension group[(57.83±8.89)years] was significantly higher than that of non-hypertension group [(51.53 ± 9.43)years, t = 2.3630, P < 0.05) ;while the course of Keshan disease in non-hypertension group [(31.63 ± 8.66)years] was notably longer than that in hypertension group [(25.08±11.41)years, t = 2.0224, P < 0.05] ;No statistically significant difference in gender, family history of hypertension, salt intake in diet, smoking, drinking and obesity was observed between the two groups(χ2 = 0.0072,0.1779,0.0029,0.1555,0.119,0.7679, all P > 0.05). Conclusions Age might be an important factor in patients with Keshan disease accompanied by hypertension, and the role of other risk factors of hypertension should not be overlooked;whether Keshan disease and hypertension can affect each other needs further investigation.

The leaves and fruits of Ginkgo biloba L.are embodied in Pharmacopoeia of People's Republic of China,mainly contain ginkgo flavonoids,terpene lactones,phenolic acids,isopentenyl alcohol,steroids and other chemical compositions.The extract and active ingredients can be made into tablets,capsules,granules,oral liquid,injection,dripping pills,syrup,tincture and other formulations,clinically used for cardiovascular and cerebrovascular disease treatment.The adverse reactions are allergies,diarrhea,bleeding,liver and kidney toxicity.This review contains the chemical composition,dosage form and clinical adverse reactions of Ginkgo biloba in recent years,for providing a reference of further development and rational utilization of this plant resource.

Objective To determine the effect of high-intensity physical activity on bone mineral density(BMD). Methods Thirty-six female soccer players (19.56±1.46 years) with more than two years training history and at least ten months soccer training annually were recruited as experiment group. Thirty-three female sedentary college students, whose physical activities were limited to the compulsory physical education curriculum,were assigned to the control group. BMD of lumbar spine and femoral neck were obtained before and after 24 months research,using dual energy X-ray absorptiometry. Results After 24 months research, increased BMD were found in both groups. Soccer players had 2.25% increase of lumbar spine BMD(P<0.05) and 4.90% increase of femoral neck BMD(P<0.05). Sedentary college students had 0.89% increase of lumbar spine BMD(P>0.05) and 2.03% increase of femoral neck BMD(P>0.05). Compared with sedentary college students,Lumbar spine and femoral neck BMD in soccer players were significantly higher(P<0.05) after 24 months research. Conclusion Long-term soccer training had the effect of greater acquisition of BMD.