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101.
我们对30例住院病人用荧光分光光度法测定了不同烧伤时间、不同烧伤指数(BI)血儿茶酚胺类(CA)释放量,以期了解病人的应激状况,同时测血糖(BS)和用放射免疫法测血胰岛素(SI)。结果表明烧伤后CA类释放是持续性的,且有休克和感染两个高峰(P<0.05,P<0.01);CA类释放主要是去甲肾上腺素(NE)的持续性增加,是正常量的两倍以上。休克期CA类释放如不增加,脓毒症阶段肾上腺素(E)与去甲肾上腺素从高值骤然下降,且低于休克期。提示:交感-肾上腺系统已处于衰竭状态,死亡似不可避免,而胰岛素分泌正常或相对不足。因此我们认为,CA类释放增加、糖原异生、胰岛β细胞分泌受抑制,是烧伤后全过程内分泌变化的主要原因。扩容纠酸、早期切痂预防感染以及使用抗CA类药物是防治的主要措施。 相似文献
102.
X F Sun H Zhang X C Wu Y M Han G Q Hou M S Xian 《Acta oncologica (Stockholm, Sweden)》1992,31(1):37-40
The microcirculatory architecture of normal tissue, transitional mucosa and adenocarcinoma of the human colon was investigated with microvascular corrosion casting (MVCC) combined with scanning electron microscopy (SEM). The study showed that the capillaries within the normal mucosa were arranged in a regular hexagonal pattern around the mucosal glands and that the microvessels of transitional mucosa mostly had lost the typical hexagonal pattern and become slightly wider in diameter. The microvessels in the tumor periphery were increased in number and disorganized, and presented large variation in morphology with claw-like formations, widened sinuses, diverticula and appendixoid patterns. Microvessels were lacking in the central areas of tumors. These morphological alterations may serve as additional indicators of tumor development. 相似文献
103.
104.
Bronchial stenosis due to endobronchial tuberculosis: successful treatment with self-expanding metallic stent. 总被引:30,自引:0,他引:30
J K Han J G Im J H Park M C Han Y W Kim Y S Shim 《AJR. American journal of roentgenology》1992,159(5):971-972
Endobronchial tuberculosis is present in 10-40% of patients with active pulmonary tuberculosis, and more than 90% of the patients with endobronchial tuberculosis have some degree of bronchial stenosis. The primary treatment for tuberculous bronchial stenosis is antituberculous chemotherapy combined with steroids, but some patients do not respond well, and more aggressive treatment is needed to restore the patency of the involved bronchus. Balloon dilatation of tuberculous bronchial stenosis has been reported to be successful. However, in our experience, balloon dilatation of the stenotic segment has not significantly improved patients' clinical symptoms except in those with very short segmental stenosis. We describe a case of tuberculous bronchial stenosis that was successfully treated with Gianturco self-expanding metallic stents. 相似文献
105.
106.
Ninety cases of infertility and habitual abortion were analyzed by hysteroscopy between April 1983 and July 1990 in PUMC hospital. Abnormal changes of the uterine cavity were seen in 74.4%. The result of hysterosalpingography corresponded with that of hysteroscopy in 62.5%, and the result of B-ultrasound corresponded to that of hysteroscopy in 52.5%. The diagnosis of adhesion and polyps of the uterine cavity was made accurately by hysteroscopy, and both could be operated under hysteroscopy. After operative removal of the adhesion, an IUD should be put into the uterine cavity for 3 months. In 60 cases operations were performed during or after hysteroscopy. Of the 45 patients followed, 19 achieved pregnancy. Five patients achieved pregnancy after operative removal of the adhesion. It is concluded that hysteroscopy is more important than B-ultrasound and hysterosalpingography in the examination and treatment of infertility. 相似文献
107.
The purpose of this study is to discuss the effects of the Chinese medicine six-flavor Rehmannia Decoction with additives on preventing deafness induced by gentamicin (GM) in guinea pig by means of testing the thresholds of Preyer's reflex (PR) cochlear microphonic potential (CM), action potential of the auditory nerve (N1) and scanning electron microscope of inner ear (SEM). The results showed that the medicine is effective in reducing the ototoxic effect of GM on inner ear. 相似文献
108.
癌旁组织CD44vmRNA的表达对原发性肝癌术后复发的影响 总被引:4,自引:0,他引:4
研究原发性肝癌癌旁组织CD44vmRNA表达的意义。应用RT-PCR检测原发性肝癌癌旁组织CD44vmRNA的表达并结合术后近2年的随访结果进行综合分析。癌旁组织CD44vmRNA表达高于癌组织者的肿瘤包膜缺如、门静脉癌栓和瘤周卫星结节等与转移相 关的病理指标高于癌旁组织CD44vmRNA表达低于癌组织的病例,前者复发率亦高于后者。结论:癌旁组织CD44vmRNA的表达肝癌侵袭潜能以及预测其复发等 相似文献
109.
应用光化学诱导法建立免局灶性脑梗塞模型,为临床治疗人的脑梗塞疾病提供有效的实验研究手段。结果显示,模型制作成功率98%,梗塞灶面积为0.465±0.012 cm2,体积为0.268±0.009 cm3,梗塞灶呈典型的损伤、渗出和炎症反应病理过程。结果提示,光化学诱导法建立免局灶性脑梗塞模型方便、快速、稳定。 相似文献
110.