Hepatic artery injection of I-131-labeled lipiodol. Part I. Biodistribution study results in patients with hepatocellular carcinoma and liver metastases

Biodistribution of iodine-131-labeled Lipiodol Ultra-Fluide (I-131 LUF) injected into the hepatic artery was studied scintigraphically in 47 patients with hepatocellular carcinoma (n = 23), hepatic metastases (n = 14), or normal livers (n = 10). The investigation was extremely well tolerated. I-131 LUF concentrated mainly in the liver (L) and the lungs (l), with L/L + l activity ratios greater than 75% for all three groups of patients. I-131 LUF distribution was homogeneous in normal livers and heterogeneous in cirrhotic livers. I-131 LUF concentrated in the tumor with a tumorous (T) to nontumorous (NT) activity ratio (T/NT) of 4.3 +/- 3.6 for hepatocellular carcinoma and 2.4 +/- 0.7 for hepatic metastases. The effective half-life of I-131 LUF is more than 4.5 days for the three groups. It was eliminated mainly through the urine. Clearance from tumor is slower than from normal liver, as shown by the increase in T/NT at day 18. Biodistribution did not change in patients who had a second injection, which indicates that there is no saturation phenomenon. The results of this study suggest that LUF may be considered as a potential carrier vehicle for therapeutic agents.     

大学生预防性治疗的结核菌素反应强度标准研究

目的 探讨结核菌素反应强度与结核病发病的相关性;提出预防性治疗对象的结核菌素反应标准.方法 对不同结核菌素反应强度的新入学大学生进行4年的结核病发病观察,分析结核菌素反应强度与发病危险性、发病时间的关系,比较不同反应强度预防性治疗对象发病率的变化.结果 26 543名健康学生进行了结核菌素试验和4年的发病观察,反应强度为0～4、5～9、10～14、15～19和≥20 mm或水泡丘疹者的年均结核病发病率分别为12.97/10万、13.34/10万、50.32/10万、167.56/10万和250.21/10万;0～4和5～9 mm反应者头2年发病率很低,第3、4年有所增高,而15～19和≥20 mm或水泡丘疹者头2年发病率很高,随着时间推移有下降趋势.当逐个计算反应强度每增加1 mm及以上反应者的发病率时,15 mm以上的各反应强度者中结核病发病率相似,一直维持在较高水平.PPD反应标准15 mm及以上可以覆盖80.8%的病人,而且病人的发现效率也维持在一个高水平.结论 结核菌素反应强度与结核病发病存在明显正相关,特别在头2年危险比更大;PPD反应≥15 mm或有水泡丘疹阳性者的发病机会明显升高,PPD反应≥15 mm或有水泡丘疹阳性标准能够覆盖80%以上的病人,病人的发现效率也最高.因此以PPD反应≥15 mm或有水泡丘疹作为预防性治疗对象的结核菌素反应标准更为合理.     

CT对肝内,外阻塞性黄疸的鉴别诊断价值

笔者通过对３５例阻塞怀黄疸的ＣＴ所见，指出了胆道扩张征象可作为鉴别肝内、阻阻塞性黄疸的可靠指标，再结合临床及ＣＴ的初期征象，可更加提高其鉴别诊断准确率。本文对这些指标的可靠性进行重点讨论。提出了该特点是特别胆道管囊肿的重要指征，即后者的胆道扩张为局部性或节段性。本文对良、恶性病变所致的胆道扩张形态亦进行了对照分析，发现二阻之间无明显性差异。     

Relationship between Mandarin speech reception thresholds and pure-tone thresholds in the geriatric population.

BACKGROUND/PURPOSE: In the geriatric population, the reliability of pure-tone threshold (PTT) is sometimes poorer than that in young adults because of various reasons. This study assessed the relationship between Mandarin speech reception thresholds (SRTs) and PTTs in the aged and developed SRT as a measure for corroborating PTT. METHODS: This prospective study enrolled 46 consecutive subjects over 60 years of age. The results of SRT and PTT were collected from one ear randomly selected from each subject. Simple linear and multiple regressions were used to determine the correlation and linear regression coefficients between SRTs and PTTs at various frequencies. RESULTS: In the simple regression analysis, the correlation coefficient was highest at 1000 Hz (r = 0.949) and 500 Hz (r = 0.922), followed by 250 Hz (r = 0.850) and 2000 Hz (r = 0.792). In the multiple regression model with SRT as the dependent variable and PTTs as predictor variables, the resultant multiple correlation coefficient R was 0.967, while R2 was 0.936. In this model, PTTs at the frequencies of 500 Hz and 1000 Hz contributed significantly to the variance in SRTs with p values of 0.029 and < 0.001, respectively. These results demonstrated that the Mandarin SRT is strongly associated with PTTs at the frequencies of 500 Hz and 1000 Hz. CONCLUSION: This study established the agreement between Mandarin SRTs and PTTs in the low tone area of speech frequencies in the geriatric population. In clinical settings, SRT test can be rapidly and easily performed and is relatively inexpensive. It is a vital indicator of the accuracy of PTT measurement.     

孕酮受体拮抗剂ZK98299类似物的合成

为寻找新的、活性强且毒副作用小的孕酮受体拮抗剂，从３，３－乙撑二氧－５α、１０α－环氧－△（９（１１））－雌烯－１７－酮（１）开始经四步反应得到孕酮受体拮抗剂ＺＫ９８２９９类似物（１２）、（１３）及其Ｃ（１７）差向异构体（１０）、（１１），化合物（３～１３）均未见文献报道，目的物（１０～１３）的生物活性正在进行测试。     

心脏创伤35例报告

本文报告心脏创伤３５例。年龄最小７岁，最大６８岁，其中包括心脏刺伤患者１０例，心肌挫伤患者２５例，死亡５例。作者强调快速确定诊断，紧急剖胸心包切开减压和心脏修补止血是心脏刺伤救治成功的关键。同时，对心肌挫伤的临床表现、早期诊断和及时处理等问题进行了讨论。     

人胎黑质细胞的冷冻保存

采用台盼蓝染色法，观察了第３～６月人胎黑质细胞冷冻保存的细胞存活率，结果：①胎龄３～６月人胎黑质细胞冷冻保存后均可存活，但以胎龄３和４月细胞存活率较高。②液氮保存的细胞存活率不受保存时间的影响，而４℃保存的细胞存活率随保存时间的延长而逐渐降低。结果提示，液氮保存人胎黑质细胞的保存条件以胎龄３和４月为宜。     

儿科结肠灌洗护理难点分析与对策

2006年3月-2007年10月我科对57例患儿给予结肠灌洗,对护理中出现的难点进行了分析并采取应对措施,取得了满意效果.现报告如下.     

斑点免疫渗滤法检测丙肝IgG抗体试剂盒的研制

用基因工程重组的丙肝抗原包被于硝酸纤维素膜，建立了检测丙肝ＩｇＧ抗体的斑点免疫渗滤法。与ＥＬＩＳＡ试剂盒进行双盲式同步测定，二法检验结果差异无显著性。渗滤法简便快速，适用于各级医院，有很强的推广价值。