Chest wall implantation of lung cancer at the drainage tube site: Report of a case

We report herein the case of a 70-year-old man in whom a chest wall implantation of adenocarcinoma of the lung at the drainage tube site was found 4 months after a right lower lobectomy with mediastinal lymph node dissection had been performed for adenocarcinoma of the right lower lobe. The lesion was successfully treated by tumor extirpation. We believe that tumor seeding to the chest wall occurred at the time of thoracotomy. To prevent such tumor seeding, the pleural cavity should be washed out routinely with a massive volume of physiological saline solution prior to closure of the chest wall.     

空管药物疗法治疗牙髓病和根尖周病疗效观察

用ＳＭＴＤ复合药物对牙髓病和根尖周病实施空管药物疗法。７８例１０３颗获得完整随访资料患牙经两年观察，９２．２％治愈率。文章介绍了治疗方法，讨论了空管药物疗法的愈合机理、优点、失败原因及其预防措施。     

全喉切除术后发音重建56例分析

目的：总结喉癌全喉切除术后Ⅰ期安放发音管发音重建的临床经验。方法：分析自1998年9月至2002年5月全喉切除术后Ⅰ期Blom-Singer发音重建56例的发音情况。结果：Ⅰ期安放发音管发音重建成功率92．9％，发音流利、响亮、清晰。结论：全喉切除术后Ⅰ期安放发音管发音重建成功率高。     

The haemodynamic response to the insertion of the laryngeal mask airway: a comparison with laryngoscopy and tracheal intubation

The haemodynamic response to the insertion of the laryngeal mask airway (LMA) was assessed and compared to that of laryngoscopy and tracheal intubation in a study of forty patients (ASA 1) randomly allocated into two groups and anaesthetised using a standard balanced anaesthetic technique. The results show that the changes in all cardiovascular parameters measured following LMA insertion were significantly less (P<0.05) when compared with those following laryngoscopy and tracheal intubation. We conclude that airway management with the LMA may be used to avoid the haemodynamic response to tracheal intubation where such a response is undersirable.     

Techniques of nasotracheal intubation with the fiberoptic bronchoscope

When nasotracheal intubation with a fiberoptic bronchoscope is performed, the tube may be blocked in the nasal cavity or larynx, resulting in several complications including epistaxis and hoarseness. We review the causes and complications of tube blockage and discuss optimal techniques for minimizing it.     

扩散管配制甲醛标准气体的研究

介绍了扩散法配制标准气体的方法。以三聚甲醛为原料，通过加热催化分解三聚甲醛蒸气，来配制甲醛标准气体。讨论了配制甲醛标准气体的准确性、稳定性、重复使用性，以及温度、扩散管几何尺寸、载气气流、配气源物质的量等因素对三聚甲醛扩散率的影响。本方法制备的甲醛标准气体，扩散率（２～５０μｇ／ｍｉｎ）测定总不确定度小于５％。     

胆道支撑管显影材料的制备及体外细胞毒性评价

目的 探讨新型显影胆道支撑管材料制备的可行性，对构建出的材料进行体外细胞毒性评价和筛选。方法 选择具有X线下显影特性的基础材料A、B、C，分别与硅橡胶生胶共混炼，模压后分别得到相应的显影复合材料甲、乙、丙，经一段和二段硫化过程完成加工。采用MTT法作为体外细胞毒性评价的方法，测定参比对照材料和新材料的50％浓度的浸提液对小鼠成纤维细胞的增殖率的影响，确定细胞毒性级别。结果 新材料甲、乙、丙在x线下影像清晰。甲、乙材料的细胞毒性级别为零，丙材料细胞毒性级别为2。结论 构建出在X线下显影的弹性体材料可行。材料甲、乙是制造新型胆道支撑管的初选材料，材料丙无应用的价值。     

肠道革兰氏阴性杆菌及孤菌快速鉴定的研究

目的：为寻求肠道G杆菌及弧菌快速鉴定的方法。方法：菌种经增菌及分离培养后，取菌落接种于综合生化培养基，并在综合生化培养基管口悬挂硫化氢和靛基质试纸条。同时以克氏双糖铁培养基作对照，置37℃培养18-24h。取综合生化管培养基，外加测试氧化酶，共获取11项生化指标。结果：对689株不同菌种与综合生化管培养基和常规双糖铁培养的测试结果，符合率为99．97％，(7577/7579)和99．79％(7563/7579)。结论：综合生化管是适合医疗卫生单位微生物实验室的一种快速检验方法。