Ultrasonographic measurement of shoulder subluxation in patients with post-stroke hemiplegia.

OBJECTIVE: To evaluate the ultrasonographic measurement of shoulder subluxation in patients with post-stroke hemiplegia. DESIGN: Prospective, single blind study. PATIENTS: A total of 41 patients with post-stroke hemiplegia were included (24 men and 17 women, mean age 56 years (standard deviation 11), age range 34-78 years). METHODS: Clinical evaluation of the affected shoulder was assessed using the Motricity Index scores and the Modified Ashworth Scale. Two ultrasonographic measurements were taken to check intra-rater reliability. The shoulder subluxation ratio was determined as the ratio of the radiographic vertical and horizontal distance, and the ultrasonographic lateral and anterior distances in the affected shoulder divided by that in the unaffected shoulder. RESULTS: Intraclass correlation coefficients of the repeated ultrasonographic lateral/anterior distance measurements in the unaffected and affected shoulders were 0.979/0.969 and 0.950/0.947, respectively. Ultrasonographic lateral/anterior distance ratios were negatively correlated with Motricity Index scores of the affected shoulder abduction (r = -0.490, p < 0.001/ r = -0.671, p < 0.001). Ultrasonographic anterior distance ratio was negatively correlated with Modified Ashworth Scale score of the affected shoulder (r = -0.374, p < 0.05). However, there was no correlation between radiographic distance ratios and clinical evaluation scores. CONCLUSION: We strongly recommend ultrasonography as a diagnostic tool to measure the degree of shoulder subluxation in patients with post-stroke hemiplegia.     

Primary Adenocarcinoma in the Urethrorectal Fistula

A 60-year-old Japanese man was hospitalized because of urinary leakage from the anus on October 3, 1994. Retrograde urethrography detected a fistula between the bulbous urethra and the rectum. Urethrocystoscopy revealed a tumor on the urethrorectal fistula. Tumor biopsy showed a well differentiated adenocarcinoma. Cystourethrectomy with fistulectomy, and ileal conduit urinary diversion were performed. Pathological examination revealed primary adenocarcinoma in the fistula with invasion to the prostatic urethra and bladder wall. The patient showed no evidence of a recurrence as of August, 1996.     

不同强度噪声所致蜗内直流电位改变及其机制探讨

本实验观察105 dB—125 dB(声压级,SPL)白噪声暴露20min 对豚鼠耳蜗直流电位(EP)的影响.发现随着噪声强度的增加,EP 发生不同形式的改变:115 dB噪声使 P—EP 增大,而125 dB 则使其减小,但各组负 EP(N—EP)变化不大。提示有血管纹功能从代偿性增强到失代偿的变化过程。本文还利用几种钾离子通道阻断剂对EP 改变的通道机制作了探讨。     

波纹龙虱捕食蚊幼功能反应研究

作者于1991年7～9月,对波纹龙虱捕食淡色库蚊幼虫功能反应进行了研究。结果表明。在实验室条件下,波纹龙虱的捕食量随着蚊幼密度的增加而增大,其曲线符合Holling Ⅱ型功能反应,即其捕食量与猎物密度呈负加速曲线型。并根据Holling圆盘方程,建立了波纹龙虱捕食功能反应数学模型。波纹龙虱的寻找效应随着猜物密度的增加而降低。     

体外丹参、藻酸双酯钠对脑血栓形成患者红细胞与内皮细胞粘附的影响

丹参、藻酸双酯钠是临床治疗脑血管病的常用药。本研究发现，在体外流场中用丹参、藻酸双酯钠分别处理脑血栓形成病人的红细胞后，此红细胞与培养的人脉静脉内皮细胞的粘附数目明显减少、粘附强度明显减弱；而且，在临床常用剂量下藻酸双酯钠的这种抗粘附作用优于丹参。认为丹参、藻酸双酯钠的这种抗粘附作用可能是临床用以治疗脑血栓形成的一个重要机理。     

BCG对膀胱粘膜结构的影响及肿瘤超微病理的研究

应用光镜，透射电镜与扫描电镜技术对２０例浅表膀胱肿瘤ＢＣＧ治疗前后粘膜结构，肿瘤超微结构及Ｈｅｌａ细胞表面结构的影响作了比较研究。结果表明，ＢＣＧ灌注后，膀胱粘膜的结构发生了明显的改变，粘膜层次变薄，粘膜下可见大量单个核细胞浸润，肉芽肿与非干酷淋巴细胞团形成。     

特殊型前列腺增生症的诊治

收治特殊型前列腺增生症１１０例，分别伴有逼尿肌无力、不稳定性膀胱、前列腺结石、膀胱结石、前列腺炎或糖尿病。认为：治疗前认真检查发现特殊前列腺增生症，是提高治愈率、减少并发症的关键步骤之一。     

北京石景山地区孕妇女婴幼儿血铅动态研究

在严格的质量保证措施下，北京石景山地区２７０名孕妇及其婴儿进行了血铅的追瞎调查。结果显示：孕３月血铅水平为４５．０μｇ／Ｌ，分娩前血铅水平为６４．８μｇ／Ｌ，孕期血铅呈升高趋势，其中后３月升高明显，分娩前血铅约为孕３月血铅的１．５倍；脐带血铅水平为５１．９μｇ／Ｌ，其中有１０．４％的胎儿脐血铅高于１００μｇ／Ｌ；