“分步给药”在低氧易感患者无痛苦胃镜检查中安全性的探讨

目的 探讨在低氧易感患者无痛苦胃镜检查中采用分步给药的安全性和镇静/镇痛效果.方法 接受胃镜检查的180例患者,其中有鼾症、或咳嗽、咳痰症状的患者120例单双号随机入选Ⅰ组(分步给药组)和Ⅱ组(普通组),60例无鼾症、咳嗽、咳痰症状的患者为Ⅲ组(常规给药组),Ⅰ组采用分步给药法,Ⅲ组采用常规给药法对患者实施胃镜检查前的镇静/镇痛术,Ⅱ组则进行普通胃镜检查,分析2种镇静法对SBP、DBP、SpO2、HR、清醒时间、患者反应、患者对检查过程的感受以及是否愿意再次接受检查的影响,评价分步给药法在低氧易感患者无痛苦胃镜检查中的安全性和镇静/镇痛效果.结果 Ⅰ组、Ⅲ组检查中SBP、DBP变化无明显差异(均P＞0.05),Ⅰ组检查前、中SpO2的变化小于Ⅲ组(均P＜0.01);Ⅰ组进镜时咽部受刺激产生的恶心咽吐、流涎、咳嗽、躁动反应多于Ⅲ组(均P＜0.01),但较Ⅱ组少(均P＜0.01);Ⅰ组对胃镜检查的评价与Ⅲ组无明显差异(P＞0.05),与Ⅱ组相比有明显差异(P＜0.01).结论 分步给药法是一种适用于低氧易感患者无痛胃镜检查的安全、有效的镇静/镇痛方法.     

经腹超声及术中超声在胰腺结石诊断、治疗中的应用

目的:探讨经腹超声及术中超声在胰腺结石诊断、治疗中的价值。材料和方法:对25例胰腺结石患者行经腹和术中超声检查。经腹超声主要观察胰管扩张程度,胰腺结石大小、位置,是否合并胆囊及胆道结石、胰腺假性囊肿等。术中超声观察是否有结石残留。结果:经腹超声显示25例患者主胰管扩张,胰腺实质增粗、增强。结石位于头部9例,位于全胰腺16例,伴有胆道梗阻征象13例,其中合并胆囊及胆道结石8例,并发胰腺假性囊肿3例,合并胰腺癌2例;术中超声形式显示6例未见残留结石,19例有残留结石,手术取出残留结石24枚。结论:经腹超声诊断主胰腺管结石敏感性较高,术中超声在判断残留结石及鉴别胰小管结石与胰腺实质钙化灶方面具有重要价值。     

The effect of central corneal thickness on estimates of the anterior chamber depth

Background: The slitlamp can be used to estimate the anterior chamber depth (ACD). The length of a slit object is increased until the corneal and iris/lens images appear to just touch. Multiplying the just‐touching‐slit‐length (JTSL) by a conversion factor gives an estimate of the ACD as measured by ultrasonography. The purpose of this study was to determine if central corneal thickness (CCT) affects the accuracy of this technique. Methods: The ACD of 50 subjects was measured by A‐scan ultrasonography and estimated by the slitlamp technique. CCT was measured by ultrasonic pachometry. The refractive error was determined subjectively. Results: The average ultrasonographic ACD for all subjects was 3.32 ± 0.65 mm. The average JTSL was 2.46 ± 0.38 mm. The conversion ratio between the ultrasonographic ACD and the average JTSL was 1.35. The predicted ACD using the regression equation of JTSL on the ultrasound anterior chamber depth (USACD) was 3.32 ± 0.54 mm. The corresponding value using the regression equation of JTSL and CCT on USACD was exactly the same, that is, 3.32 ± 0.54 mm. Conclusion: Incorporation of CCT into a regression equation does not improve the accuracy of the Smith technique.     

ENDOSCOPIC MUCOSAL RESECTION AND SUBMUCOSAL DISSECTION METHOD FOR LARGE COLORECTAL TUMORS

The goal of endoscopic mucosal resection (EMR) is to allow the endoscopist to obtain tissue or resect lesions not previously amenable to standard biopsy or excisional techniques and to remove malignant lesions without open surgery. In this article, we describe the results of conventional EMR and EMR using an insulation‐tipped (IT) electrosurgical knife (submucosal dissection method) for large colorectal mucosal neoplasms and discuss the problems and future prospects of these procedures. At present, conventional EMR is much more feasible than EMR using IT‐knife from the perspectives of time, money, complication, and organ preservation. However, larger lesions tend to be resected in a piecemeal fashion; and it is difficult to confirm whether EMR has been complete. For accurate histopathological assessment of the resected specimen en bloc EMR is desirable although further experience is needed to establish its safety and efficacy. Further improvements of in EMR with special knife techniques are required to simply and safely remove large colorectal neoplasms.     

公立非营利性医院建立法人治理结构理论探讨

回顾了医院法人治理结构问题的提出、内涵和理论发展,分析了公立非营利性医院建立法人治理结构的迫切性,并探讨了医院建立法人治理结构的主要内容和所面临的关键问题.     

双环法旋转圆锥状腺体蒂乳房缩吊术

目的改进传统的双环法在乳房缩小术、乳房悬吊术术后外形扁平，凸度不足，上极瘪陷，提升不够等缺点。方法采用双环切口。“扇”形分离、切除皮下部分脂肪，“楔”形切除适量的外上象限腺体，螺旋状旋转剩余腺体成圆锥状，将其固定在第2肋软骨膜上，矫正轻中度乳房肥大和下垂。结果术后随访20例患者1～3个月，乳房上极较丰满，形态好，乳头乳晕功能正常，切口瘢痕轻，乳房肥大和下垂的矫正获得了满意的效果。结论双环切口，螺旋状旋转剩余腺体成圆锥状，并固定于第2肋软骨膜上，可较好地塑形并悬吊乳房，其切口相对隐蔽，术后乳房高凸，上极略饱满，乳头微上翘，乳晕形态合适，是矫正轻中度乳房肥大下垂的一种较理想的术式。     

实习期医学生心理健康状况、应对方式及压力状况的调查

目的探讨实习期医学生心理健康状况、应对方式及压力状况。方法将进入临床实习期的364名临床医学生作为研究组,而选取379名非实习期的临床医学生作为对照组,问卷评定采用症状自评量表(SCL-90)、应对方式问卷及心理身体紧张松弛测试表。结果研究组SCL-90的人际关系敏感、强迫、抑郁、焦虑、敌对因子得分显著高于对照组(t=2.25~5.17,P<0.05);与对照组相比,研究组的应对方式中解决问题因子分有显著性降低,自责、退避因子分则有显著性增高(t=-1.97~2.89,P<0.05);研究组的心理压力状况明显差于对照组,且差异具有显著性意义(χ2=56.03,P<0.05)。结论实习期的临床医学生存在不同程度的心理问题,应予以足够重视。     

化疗药物性静脉炎及渗漏损伤的动物实验模型研究概况

化疗药物性静脉炎及渗漏损伤的动物实验模型是研究体内化疗药物性静脉炎及渗漏损伤的发病机制和评价各种治疗方法的重要条件。化疗药物性静脉炎及渗漏损伤的实验研究进展缓慢,其主要原因是缺乏理想的动物模型。依文献报道,化疗药物性静脉炎模型主要以大白兔耳缘静脉注射长春瑞滨等化疗药物为多见,化疗药物渗漏损伤模型主要以大鼠及大白兔背部皮下注射盐酸阿霉素等化疗药物为多见。文章就近年来常用的一些化疗药物性静脉炎及渗漏损伤的动物模型综述如下。     

一种有效提高小丸微波干燥能力及质量的装置

介绍一种能提高小丸微波干燥能力,避免小丸干燥开裂、过火等现象,可以提高小丸微波干燥均匀度的装置。     

STANDARD IMAGING TECHNIQUES OF ENDOSCOPIC ULTRASOUND‐GUIDED FINE‐NEEDLE ASPIRATION USING A CURVED LINEAR ARRAY ECHOENDOSCOPE

Standard imaging techniques using a curved linear array echoendocope are summarized to facilitate the attainment of expertise in endoscopic ultrasonography and endoscopic ultrasound‐guided fine needle aspiration, and to promote the widespread use of this diagnostic and therapeutic tool. Typical images of the mediastinal organs, the bilio‐pancreatic systems and neighboring organs by scanning from the esophagus, stomach, duodenal bulb, and descending portion of the duodenum, are shown in a sequential manner. The basic techniques of endoscopic ultrasound‐guided fine needle aspiration are also presented.