Ten-year-old boy with post-traumatic priapism

Summary The case of a 10-year-old boy with post-traumatic priapism after perineal trauma is presented. Interdisciplinary treatment using angiography and selective catheter embolization for juvenile high-flow priapism is demonstrated. The literature and the diagnostic possibilities resulting from color duplex sonography are discussed.      

教学医院学科人才绩效评价体系的构建与应用研究

目的：建立临床医学院学科人才绩效评价体系，促进临床医学院人才建设，提高学科人才管理水平。方法：运用系统方法、层次分析方法、专家咨询法、权值因子判断表法等建立绩效评价指标体系，并在某临床医学院实测应用，反馈验证评价体系的可靠性和科学性。结果：经实测应用，此体系对学科人才的评估总分呈正态分布，一、二级指标区分度较高，三级指标独立性强，其变量间相关率(经偏相关纠正)为2．67％。结论：此评价体系有较强的可靠性和科学性，具有一定的创新性，能综合评价学科人才的绩效水平。     

医学本科生综合素质全程评估体系研究

目的：拟订了军队医学本科生综合素质评估指标体系，给出医学生综合素质全程评估方法。方法：利用Access数据库编写了军队医学本科生综合素质全程评估软件。并在我校临床医学本科98级“3 2”改革模式和“4 1”传统模式中各随机抽取60名学员进行了初步应用。结果：A、B两班在思想道德素质、专业素质、心理素质、军体素质、基本能力素质、综合素质平均分差异有显性意义，二在科学化素质方面无显性差异。结论：本评估体系可对学生个体进行全程动态评估，并可用于教学改革成效的评价。     

Health status measurement in Parkinson's disease: validity of the PDQ-39 and Nottingham Health Profile.

We assessed the feasibility and psychometric properties of two commonly used health status questionnaires in Parkinson's disease (PD): the generic Nottingham Health Profile (NHP) and the disease-specific 39-item Parkinson's disease Questionnaire (PDQ-39), from a cross-sectional postal survey of PD patients (N = 81), using traditional and Rasch measurement methodologies. Overall response rate was 88%. Both questionnaires were found feasible, although the NHP performed less well. The PDQ-39 had fewer floor effects and was better able to separate respondents into distinct groups than the NHP, whereas the latter exhibited less ambiguous dimensionality and better targeting of respondents with non-extreme scores. Reliability and validity indices were similar, and potential differential item functioning by age and gender groups was found for both questionnaires. PDQ-39 response alternatives indicated ambiguity. With few exceptions, questionnaire scales were unable to meet recommended standards fully. While preliminary, this study illustrates the need for thorough evaluation of outcome measures and has implications beyond the questionnaires used here. Although promising, both questionnaires warrant further developmental work and stronger support of measurement validity before they could be considered fully suitable for valid use in PD, in particular in earlier stages of the disease.     

油菜和向日葵花粉的成分分析及其蛋白质营养评价

<正> 花粉在古代就曾作为强身保健食品。美、英两国的科学家曾分析了花粉的成分,发现花粉由96种元素组成,其中有维生素、矿物质、酶、蛋白质和某些其它物质。美国明尼苏达大学曾做过花粉对动物的增重实验。当41～150日龄小猪饲料中添加2～3％的玉米花粉时,体重增长明显快于对照组,     

Development and experimental in vivo validation of mathematical modeling of laser coagulation

Most clinical procedures using the laser are based on thermal laser-tissue interactions. The treatment often consists of inducing damage of given degree and extent by heating the tissue. The aim of this study was to develop a model called HELIOS. The ability of HELIOS to predict thermal coagulation was evaluated by comparison with in vivo experimental results. Conversion of laser light in tissue was studied using the beam-broadening model. Temperature was described by the heat conduction equation solved using the finite difference method. The tissue dena-turation was modeled by the Henriques equation leading to the determination of the damage coefficient ω. For a given set of laser and tissue parameters, HELIOS makes a graphic representation of coagulation necrosis and temperature evolution in tissue. HELIOS was validated by experimental studies in vivo on rat liver using a CW Nd:YAG laser, a CO₂ laser, and an argon laser. For given sets of laser parameters, temperature measurements were performed using an infrared camera. Histological examinations were carried out on samples to quantify the depth of coagulation necrosis. Experimental data obtained in vivo were compared with those calculated using HELIOS and similar sets of parameters. The difference between the predicted temperature evolution on tissue surface and that measured by the infrared camera was < 5°C in all cases. The difference between the predicted coagulation necrosis depth and the corresponding experimental one was < 10%. In conclusion, HELIOS allows good prediction of tissue temperature and coagulation necrosis. © 1994 Wiley-Liss, inc.     

导管射频消融治疗飞行员快速心律失常临床分析

目的探讨导管射频消融（RFCA）在治疗飞行员多种快速性心律失常中的安全性及临床应用价值，探讨飞行员快速性心律失常的航空医学鉴定标准。方法对13例快速性心律失常的飞行员进行了电生理（EP）检查，特发性室性心动过速（VT）1例，频发室性期前收缩（VE）2例，阵发性心房纤颤（AF）1例，房室折返性心动过速（AVRT）5例，房室结折返性心动过速（AVNRT）3例，房性心动过速（AT）1例。对其中12例采用RFCA治疗。结果RFCA即刻成功率为100％，全组无并发症发生。1例房性心动过速未行导管射频消融治疗。所有飞行员术后地面观察6个月后，返院进行随访复查，同时进行飞行鉴定。12例导管射频消融治疗，术后6个月24h动态心电图、12导联心电图检查和食道电生理检查均未检测到术前的同型快速性心律失常发作，延迟成功率为100％，医学鉴定合格。1例AT仍有发作，飞行不合格。结论对于飞行员快速性心律失常进行导管射频消融治疗是一种安全、有效的治疗方法。心脏电生理检查应作为飞行员快速性心律失常医学鉴定的主要指标之一。     

中国高等教育评估制度探析

高等教育大众化对质量的关注是必然的.高等教育评估制度的建设是当前我国深化高等教育管理体制改革、保证高等教育健康发展的需要.我们要建立既符合中国国情又体现高等教育评估普遍规律的具中国特色的高等教育评估制度.     

去骨瓣减压术治疗大面积脑梗死的短期疗效评价

目的:评价去骨瓣减压术治疗大面积脑梗死的效果。方法:制定入选和排除标准,统一术式,比较术前、术后不同时期的神经功能变化,并对存活病例进行随访(6个月),评价术后3和6个月时的预后评分(GOS)和BarthelIndex(BI)的变化。结果:按入选标准行去骨瓣减压术26例,术后死亡率为30.8%。术前昏迷评分GCS对决定手术时机有指导作用。共随访14例患者,术后3和6个月GOS分别为3.6±0.8和4.0±0.8,与出院时GOS评分比差异有统计学意义。术后3和6个月BI分别为68.9±29.4和77.5±28.3,其中术后6个月BI>60者占85.7%。结论:对保守治疗无效的大面积脑梗死患者,去骨瓣减压术不仅可作为一种“救命”手术,而且多数存活病例恢复较好。合理选择手术适应证、及时把握手术时机以及充分手术减压可能是影响预后的重要因素。     

主成份分析与因子分析用于多指标综合评价

本文从应用角度阐明了主成份分析与因子分析用于多指标综合评价的异同点，并用实例加以说明。提出了主成份分析和因子分析用于多指标综合评价时，应在能明确主成份或因子的意义和方向情况下加权，否则会得到错误的结果。