骨水泥和种植体同期植入修复颌骨和牙列缺损的实验研究

目的：探讨高分子材料和种植体同期植入缺损区进行同步骨缺损修复和牙列缺损修复的可行性。方法：以4只杂种狗为研究对象，制备下颌骨长约2．5cm的缺损的动物模型(保留下颌骨下缘)，将骨水泥(聚甲基丙烯酸酯)植入骨缺损，同时将牙种植体植入骨水泥中并调整长轴方向，立即关闭术创。至术后3个月摄X线片，然后处死动物，局部巨检以了解骨水泥同骨组织的结合情况，并制备骨组织切片进行苏木精一伊红染色和甲苯胺蓝染色，以了解植入材料周边骨的生长情况及其对植入材料的反应。结果：术后3个月X线检查见骨缺损区充满骨水泥，骨水泥周边的骨小梁清晰，未见骨吸收或炎症表现，形成良好的骨-骨水泥界面，种植体则依赖其表面的螺纹结构与骨水泥间紧密的机械性嵌合而牢固的成为一体，植入的骨水泥块与周边天然骨结合紧密，无松动现象。植入材料周边局部脱钙骨的苏木精-伊红染色和甲苯胺蓝染色见骨结构正常，同时骨-骨水泥界有新骨形成。结论：骨水泥作为颌骨修复替代材料同期植入种植体是可行的。     

女性运动试验后QTc与ST的对比分析

作者测量100例妇女心电图运动试验后即刻QTc间期。冠心病组50例运动后即刻QTc间期比静息时明显延长(P<0.001),比正常配对组50例则明显缩短(P<0.001)。以QTc间期延长≥0.01秒力阳性指标,与ST段压低比较,其敏感性可从42％提高至70％,特异性从66％提高至76％;如综合QTc间期与ST段标准加以判断时,可使敏感性、特异性分别增至74％、88％。     

双腔右心室(附四例报告)

本文对我院1983～1985年经手术证实的4例双腔右心室病例,进行了分析讨论。本病除右心导管检查发现肺动脉与右心室有压力阶差移行曲线、右心造影时心腔内显示充盈缺损、超声心动图等检查有助于诊断外,X线心脏平片、心电图、临床症状、体征均无特异性的诊断价值。认为,由于本病多合并室缺,因此对室缺修补时,应常规探查右心室腔,以免漏诊。另外,对本病与法乐氏四联症的鉴别作了较详细的讨论。     

Serial CT findings of Paragonimus infested dogs and the Micro-CT findings of the worm cysts.

OBJECTIVE: To investigate the serial CT findings of Paragonimus westermani infected dogs and the microscopic structures of the worm cysts using Micro-CT. MATERIALS AND METHODS: This study was approved by the committee on animal research at our institution. Fifteen dogs infected with P. westermani underwent serial contrast-enhanced CT scans at pre-infection, after 10 days of infection, and monthly thereafter until six months for determining the radiologic-pathologic correlation. Three dogs (one dog each time) were sacrificed at 1, 3 and 6 months, respectively. After fixation of the lungs, both multi-detector CT and Micro-CT were performed for examining the worm cysts. RESULTS: The initial findings were pleural effusion and/or subpleural ground-glass opacities or linear opacities at day 10. At day 30, subpleural and peribronchial nodules appeared with hydropneumothorax and abdominal or chest wall air bubbles. Cavitary change and bronchial dilatation began to be seen on CT scan at day 30 and this was mostly seen together with mediastinal lymphadenopathy at day 60. Thereafter, subpleural ground-glass opacities and nodules with or without cavitary changes were persistently observed until day 180. After cavitary change of the nodules, the migratory features of the subpleural or peribronchial nodules were seen on all the serial CT scans. Micro-CT showed that the cyst wall contained dilated interconnected tubular structures, which had communications with the cavity and the adjacent distal bronchus. CONCLUSION: The CT findings of paragonimiasis depend on the migratory stage of the worms. The worm cyst can have numerous interconnected tubular channels within its own wall and these channels have connections with the cavity and the adjacent distal bronchus.     

孕妇血清AFP、uE3和β-hCG水平与严重胎儿缺陷的关系

①目的 探讨孕中期血清甲胎球蛋白（AFP），游离雌三醇（uF3)和β绒毛膜促性腺激素（β-HCG）水平与严重胎儿缺陷的关系。②方法 用ELISA方法对832例16-21周妊娠妇女血清AFP、UE3和β-hCG进行检测，以筛查阳性病人。③结果 14例胎儿被确诊为异常，其中唐氏综征2例，无脑儿3例，脊柱裂3例，唇腭裂1例，腹裂肠外翻1例，孕中期自然流产2例，死胎1例，葡萄胎1例，总检出率为1.68%，假阳性15例，占被检人数的1.80%。④结论 以上3种生化指标联合检测可作为产前诊断严重胎儿缺陷的有效方法。     

子宫切除术对生存质量的影响

目的：研究子宫切除术对生存质量的影响。方法：对108例因良性疾病而行腹式子宫切除术者进行前瞻性队列研究，术前及术后3，6，12个月进行调查问卷，观察症状、泌尿及胃肠功能、性功能、心理状况、社会生活状态的变化。结果：子宫切除术后3个月症状、压抑、焦虑程度减轻，社会生活状态显著提高，泌尿及胃肠功能、性功能无改变，这些改善持续至术后12个月。结论：子宫切除术可有效缓解妇科良性疾病所产生的症状，症状的缓解有利于改善生存质量。大多数因妇科良性疾病而行腹式子宫切除术的妇女，在术后1年，生存质量提高。     

Prevalence of occupational allergy due to live fish bait

BACKGROUND: Larvae of insects and worms, used as live fish bait (LFB), are a common source of allergy in anglers and occupationally exposed workers, but the prevalence and predictors have not yet been investigated. OBJECTIVE: This study assessed the prevalence and associated factors of occupational allergy in workers exposed to LFB. METHODS: We assessed the prevalence of sensitization to LFB and work-related symptoms (WRS) in 76 workers occupationally exposed to it. All workers completed a case history questionnaire and underwent skin prick tests (SPT) for common aeroallergens and bluebottle (Calliphora vomitoria), bee moth (Galleria mellonella), mealworm (Tenebrio molitor), and gusano rojo (Cilecomadia moorei). Specific IgE were tested in 64 subjects. Two-thirds of the workers had a high level of LFB exposure. RESULTS: Sensitization to LFB was found in 24 workers (31.6%). Seven subjects (9.2%) reported WRS (asthma in 3, rhinoconjunctivitis in 5, and contact urticaria in 1), and 5 were positive for SPT and serum IgE to one or more LFB extracts. One was also exposed to LFB while fishing. Sensitization to LFB extracts and WRS were strongly associated (Odds Ratio = 6.6, P < 0.05). The 7 subjects with WRS had been exposed longer than asymptomatic subjects with positive skin tests to LFB (P < 0.05). No differences in sex, age, smoking habit, duration or level of exposure, and atopy were detected in symptomatic or in sensitized subjects, compared with normal workers. CONCLUSION: Sensitization to LFB and WRS are relatively frequent in occupationally exposed workers. No associated factors of occupational allergy to LFB could be detected.     

某部性病基本知识调查分析

目的　探讨部队性病防治情况。方法　设计 10个与性病有关的问题 ,对随机抽样某师 4个营官兵现场无记名调查。结果　有关性病的基本知识已被大部分官兵所认知 ,但也有一部分官兵对性病缺乏了解 ,甚至误解。结论　在官兵中加强性病基本知识的宣传 ,强调性病的危害对部队防治性病很有必要。     

Mr imaging of hepatic nodular regenerative hyperplasia

Nodular regenerative hyperplasia (NRH), a rare condition that is commonly associated with noncirrhotic portal hypertension, is not well described in the MR literature. Three patients at two institutions were identified who had both abdominal MR imaging and pathologic evidence of NRH. All examinations were performed at 1.5 T and included axial T1- and T2-weighted spin-echo (SE) images. The MR studies were reviewed by two radiologists in consensus. Two patients had multiple liver lesions that had high signal components on T1-weighted images and were predominantly isointense with liver on the T2-weighted images. One patient had no focal lesions identified. NRH, when visualized on MR images, appears as multifocal masses with shortened Tl and T2 similar to liver. NRH should be considered in the differential diagnosis of hepatocellular tumors, especially in patients with a predisposing condition.     

桂美辛和山莨菪碱治疗胆绞痛的比较

桂美辛组(男性21例,女性35例;年龄44±12a)治疗胆绞痛56例,剂量300mg, po, tid,显效32例,有效21例,总有效率95％。山茛菪碱组52例(男性18例,女性34例;年龄46±13a),剂量10mg, im, tid,显效、有效分别为9与20例,总有效率56％。2组比较,P<0.01。桂美辛治疗胆绞痛有疗效高、不良反应少的优点。