~(99m)Tc-MIBI心肌灌注断层显像监测蒽环类药物的心脏毒性

目的 :探讨99mTc-MIBI心肌灌注断层显像在蒽环类药物心脏毒性监测中的价值。方法 :2 3例接受蒽环类药物治疗的患者 ,在治疗前进行心电图、心肌酶学检查、核素心室造影测左室射血分数 (LVEF)和99mTc MIBI心肌灌注断层显像并计算相对定量值。并于每一周期治疗后重复上述检查。结果 :蒽环类药物治疗一周期后 ,2 3例患者心肌相对定量值明显下降 (P <0 .0 1)。其中 11例吡喃阿霉素、6例表阿霉素和 6例米托蒽醌治疗的患者 ,心肌相对定量值明显下降 (P <0 .0 5 ) ,心电图和心肌酶学无明显变化 (P >0 .0 5 )。蒽环类药物治疗多周期后的 10例患者心肌相对定量值较治疗前下降 (P <0 .0 5 )。 9例患者的心肌相对定量值 (最大累积剂量为 2 0 0mg/m2 )与一周期后无明显差别 (P >0 .0 5 )。10例患者治疗前及多周期治疗后LVEF均 >6 0 %,且化疗前后无明显差别 (P >0 .0 5 )。结论 :99mTC MIBI心肌灌注断层显像能监测蒽环类药物所致的心肌损害 ,且较左室射血分数敏感 ,比心电图和心肌酶学检查优越 ,有利于指导蒽环类药物的临床应用。     

^99mTc—MIBI心肌灌注断层显像监测蒽环类药物的心脏毒性

目的：探讨^99mTc—MIBI心肌灌注断层显像在蒽环类药物心脏毒性监测中的价值。方法：23例接受蒽环类药物治疗的患者，在治疗前进行心电图、心肌酶学检查、核素心室造影测左室射血分数(LVEF)和^99mTc—MIBI心肌灌注断层显像并计算相对定量值。并于每一周期治疗后重复上述检查。结果：蒽环类药物治疗一周期后，23例患者心肌相对定量值明显下降(P＜0．01)。其中11例吡喃阿霉素、6例表阿霉素和6例米托蒽醌治疗的患者，心肌相对定量值明显下降(P＜0．05)，心电图和心肌酶学无明显变化(P＞0．05)。蒽环类药物治疗多周期后的10例患者心肌相对定量值较治疗前下降(P＜0．05)。9例患者的心肌相对定量值(最大累积剂量为200mg／m^2)与一周期后无明显差别(P＞0．05)。10例患者治疗前及多周期治疗后LVEF均＞60％，又化疗前后无明显差别(P＞0．05).结论：^99mTc—MIBI心肌灌注断层显像能监测蒽环类药物所致的心肌损害，且较左室射血分数敏感，比心电图和心肌酶学检查优越，有利于指导蒽环类药物的临床应用。     

~(99)Tc~m-MIBI心肌断层显像前硝酸甘油评估存活心肌

目的　探讨含服硝酸甘油在介入99Tcm MIBI心肌断层显像在判断心肌存活中的价值。方法　 12例心肌梗塞患者先行静息99Tcm MIBI心肌断层显像 ,4 8h后在静脉注射99Tcm MIBI前 5min舌下含服硝酸甘油 0 .5mg ,然后再行静息心肌断层显像 ,观察灌注情况。 结果　 12例心肌梗塞患者静息心肌断层显像有 6 8个节段放射性分布异常 ,含服硝酸甘油介入后 2 6个节段灌注改善 ;4 2个节段无变化或有异常加重。结论　含服硝酸甘油在介入99Tcm MIBII心肌断层显像对判断心肌存活有一定的临床价值 ,且方法简便易行 ,安全可靠。     

静脉滴注硝酸甘油介入99mTc-MIBI心肌显像对存活心肌的评价

目的 :评价静脉滴注硝酸甘油 (NTG)介入 99m Tc-甲氧基异丁基异腈 (MIBI)心肌断层显像在心肌存活的估测价值。方法:对 44例心肌梗死患者先行常规静息态 99m Tc- MIBI心肌断层显像 ,2 4～ 48h后静脉滴注 NTG再行静息态心肌断层显像。 结果:静息态心肌断层显像检出异常灌注节段 2 2 9个。 NTG介入后有 5 9个节段恢复正常 ,44个节段明显改善 ,12 6个节段部分改善 ,NTG介入后的缺血 /正常 (I/ N )比值为 0 .70 9± 0 .136 ,明显较静息时的 (0 .6 49± 0 .12 4)增大。 结论:静脉滴注 NTG对提高静态 99m Tc- MIBI心肌断层显像估测心肌存活有一定的临床价值 ,这对冠心病血运重建术对象选择以及心肌梗塞患者的预后评价有重要作用。     

LDDE和含服硝酸甘油 99m / Tc～MIBI心肌灌注显像对血管重建术后存活心肌的评估

目的 :采用低剂量多巴酚丁胺超声心动图 (LDDE)和含服硝酸甘油 (NTG)介入99mTc MIBI心肌灌注显像评价血管重建术前后的心肌存活性 ,并进行对比分析。方法 :将 37例心肌梗塞患者分为 3组 ,于血管重建术前分别行LDDE和 /或NTG介入99mTc MIBI心肌灌注显像 ,术后 1个月行基础超声心动图或静息99mTc MIBI心肌显像。结果 :Ⅰ组 ,NTG介入99mTc MIBI心肌灌注显像对术后心肌灌注改善的阳性预测值为 86 1 % ,阴性预测值为 79 2 % ,准确率为 82 6% ;Ⅱ组 ,LDDE对术后室壁运动改善的阳性预测值为 82 5% ,阴性预测值为 81 1 % ,准确率为 81 6% ;Ⅲ组 ,2种方法对低动力心肌节段功能恢复的预测无显著差异 (P >0 0 5) ;而对无动力心肌节段差异显著 (P <0 0 5) ;LDDE和NTG介入99mTc MIBI心肌灌注显像对整个运动障碍节段功能恢复预测的敏感性分别为 70 2 %和84 9% ,特异性分别为 87 2 %和 68 2 %。结论 :LDDE和NTG介入99mTc MIBI心肌灌注显像均是临床检测心肌存活安全、有价值的方法 ,如以术后室壁运动改善作为存活心肌的标准 ,则LDDE有较高的特异度。     

药物介入核素心肌显像在识别存活心肌中的作用

目的:研究核素心肌显像在识别存活心肌中的准确性及实用性。方法 :对 2 0 0 0年 10月～ 2 0 0 1年 9月行 PTCA+支架术的 30例住院心肌梗死患者 (梗塞后 2周至 3个月 ) ,采用 PTCA支架术前静点小剂量多巴酚丁胺 (3μg· kg- 1· min- 1 ) ,并合用舌下含服硝酸甘油 (0 .5 m g) 99m TC- MIBI心肌显像 ,与术后 3周时复查静息 99m TC-MIBI心肌显像进行对比 ,观察多巴酚丁胺与硝酸酯合用预测存活心肌的准确度及安全性。结果:PTCA支架术前静息 99m Tc- MIBI心肌灌注显像共有 117个节段心肌摄取异常。药物介入 99m Tc- MIBI心肌灌注显像及 PTCA支架术后 3周静息 99m Tc- MIBI心肌灌注显像放射性分布异常节段心肌血流灌注改善。术前静息心肌灌注显像的 117个节段 ,药物介入 99m Tc- MIBI心肌灌注显像有 4 1个节段灌注改善 ,2 3个节段正常 ,5 3个节段无变化。PTCA支架术后 3周随访中有 4 8个节段改善 ,2 8个节段正常 ,无效的 5 3个节段在 PTCA支架术后有 4 1个节段心肌灌注无改善。结论 :以 PTCA支架术后 3周为标准 ,静脉应用小剂量多巴酚丁胺时舌下含服硝酸甘油 (0 .5 m g)核素心肌显像 ,预测存活心肌灵敏度为 84 .2 % ,特异度为 77.4 % ,具有安全性高、副作用小、患者易于接受的优点     

99mTc-MIBI心肌灌注断层显像与冠状动脉造影的对比研究

目的　探讨99mTc-甲氧基异丁基异腈 (MIBI)心肌灌注断层显像对冠心病的诊断价值。方法　 34例99mTc -MIBI心肌灌注断层显像与冠状动脉造影 (CAG)结果进行对比。结果　99mTc-MIBI心肌灌注断层显像对冠心病诊断的敏感性为 91.7%,特异性为 80 .0 %。对右冠状动脉、左冠状动脉前降支和左冠状动脉回旋支的诊断阳性率分别为 85 .7%、92 .3%和 71.4%,总的阳性预测值为 91.7%,阴性预测值为 80 .0 %。结论　99mTc -MIBI心肌灌注断层显像对冠心病的诊断有较大价值。     

二硝酸异山梨醇酯介入~(99m)Tc-MIBI再注射心肌断层显像评估存活心肌

目的 :观察 Isoket介入99m Tc- MIBI再注射显像能否提高心肌存活力。方法 :2 8例病人首先静脉注入 99m Tc- MIBI进行静息心肌断层显像 ,2 4 h后全部病人给予 Isoket2 0 mg+生理盐水2 0 0 ml滴注 ,静点结束后静脉注入 99m Tc- MIBI再次进行心肌显像。结果 :静息 99m Tc- MIBI显像的平均得分为 1 5.1± 3.8,Isoket介入 99m Tc- MIBI再注射显像的平均得分为 1 0 .8± 1 .6,两者比较差异显著 (P<0 .0 1 )。结论 :Isoket介入 99m Tc- MIBI再注射显像与静息 99m Tc- MIBI显像比较可明显提高对存活心肌检测的灵敏度。     

~(99m)Tc-MIBI心肌灌注显像在病毒性心肌炎的应用价值

目的 :评价99m Tc MIBI心肌灌注显像对病毒性心肌炎 (VMC)诊断的价值。方法 :对临床诊断为VMC的 5 5例患者及正常人 14例进行心肌灌注显像。结果 :5 5例患者中 39例心肌显像出现不同程度的放射性分布异常区 ,11例出现单节段放射性减低 ,17例多节段放射性分布异常 ,11例呈花斑样改变 ;总阳性率为 71.0 % ,急性期阳性率为 71.4 % ,恢复期阳性率为 5 0 .0 % ,慢性迁延期阳性率为 81.8%。结论 :99m Tc MIBI心肌灌注显像能够直观的表现病变心肌的部位、范围及程度 ,有助于病毒性心肌炎诊断 ,是病情监测、预后判断的有效手段。     

门控心肌断层显像评价心肌梗死患者骨髓干细胞移植术的效果

目的用99TCm-甲氧基异丁基异腈(MIBI)门控心肌灌注断层显像评价心肌梗死患者骨髓干细胞移植术的效果。方法18例心肌梗死患者,在骨髓干细胞移植术前行静息门控心肌灌注断层(硝酸甘油(NTG)介入心肌显像,术后2~3个月内复查门控静息心肌显像,并进行对比分析。结果自体骨髓干细胞移植术后梗死心肌节段减少,病变区放射性核素分布明显填充。其平均计分值分别为术前(8.48±4.32)和术后(5.16±2.15),P<0.01,差异有显著性。左室射血分数平均增加15.2%。提示心肌梗死区术后有明显的新生心肌细胞,心功能得到部分改善。结论用门控心肌灌注断层显像评价心肌梗死患者骨髓干细胞移植术后的效果有明显临床价值。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.