16层螺旋CT冠状动脉成像初步探讨

目的探讨心率与多层螺旋CT（MSCT）冠状动脉（简称冠脉）成像运动伪影的关系，及MSCT冠脉成像的临床应用价值。方法对200例临床拟诊冠心病的患者行MSCT冠脉成像检查，分析扫描时心率与冠脉运动伪影的关系；其中37例同时行常规冠脉造影（简称冠造）检查，对比分析2种检查结果。结果扫描时心率≤55次／min、56～60次／min、61～65次／min、66～70次／min和〉70次／min组有运动伪影的冠脉节段分别占冠脉总数的0．1％（1／759）、1．1％（7／649）、2．5％（10／407）、42．6％（103／242）和75．5％（108／143）；以常规冠造作为金标准，MSCT诊断狭窄≥50％的敏感度、特异度、阳性预测值、阴性预测值分别为79．2％、96．0％、83．8％、94．6％。扫描时心率与冠脉运动伪影的数量显著相关（r=0．655，P=0．000）。结论MSCT能较准确诊断冠脉50％以上的狭窄，是无创性诊断冠脉狭窄的重要工具。     

Blood pressure and heart rate in parkinsonian patients with and without wearing-off

Our study aimed to investigate the cardiovascular autonomic regulation related to the wearing-off phenomenon in Parkinson's disease (PD). We measured blood pressure (BP) and heart rate (HR) at rest and during orthostatic test in 16 patients with PD with wearing-off and in 15 patients with PD without wearing-off both before (baseline) and repetitively at 1-h intervals for up to 4 h after the morning PD medication dose.
The patients with wearing-off had fluctuation of BP during the observation period, BP increasing when the motor performance worsened and vice versa. The mean supine BP was at its highest at the baseline measurement (patients with wearing-off, 145 ± 18 mmHg; patients without wearing-off, 138 ± 17 mmHg), fell during the first hour (patients with wearing-off, 119 ± 17 mmHg; patients without wearing-off, 126 ± 18 mmHg), and then rose again toward the end of the observation period (patients with wearing-off, 136 ± 15 mmHg; patients without wearing-off, 138 ± 18 mmHg). This BP change was statistically significant only in PD patients with wearing-off ( P  < 0.001).
In conclusion, BP seems to fluctuate with motor impairment in PD patients with wearing-off. This fluctuation may represent autonomic dysfunction caused by the PD process itself, the effect of PD medication, or both.     

髁突形态与覆深度关系的研究

目的　探讨髁突形态与不同覆深度的关系。方法　选择正常者、开畸形患者、覆正常的错畸形患者和深覆畸形患者各 5 0人 ,均为 18至 2 6岁成人。应用曲面断层片研究左右两侧的髁突形态 ,分别测量并计算上部髁突高度 /升支高度比 (UCH/RH)和髁突高度 /宽度比 (TCH/CW )。将髁突形态分为四种类型 :直立型 (类A) ,前倾型 (类B) ,后倾型 (类C)和尖型 (类D)。结果　开组的上部髁突高度相对升支高度明显小于其他各组 (P <0 0 0 1)。正常组的髁突形态比较粗壮 ,高度宽度比明显小于其他各组 (P <0 0 0 1)。类A和类B属于正常髁突形态 ,占正常组的 99%。类C和类D属于异常髁突形态 ,且在开组中的比例明显高于正常覆组或深覆组。另外 ,只有开组中显示上部髁突高度两侧不对称 (P <0 0 5 )。结论　开组髁突形态与其他各组相比明显不同。     

Respiratory atopic disease, Ascaris-immunoglobulin E and tuberculin testing in urban South African children

BACKGROUND: Epidemiological relation of intestinal helminth infection and atopic disease, both associated with a T-helper (Th) 2 immune response, is controversial, as it has been reported that helminth infection may either suppress or pre-dispose to atopic disease. This relation has not been tested in an area with a high burden of Mycobacterium tuberculosis (MTB) infection, a known Th1-stimulating infection. OBJECTIVE: To study the association of intestinal helminth infection and atopic disease in a community where helminth infection is endemic and MTB infection is high. METHODS: Three-hundred and fifty-nine randomly selected children aged 6-14 years from a poor urban suburb were tested with allergy questionnaire, skin prick test (SPT) to common aeroallergens, Ascaris-specific IgE (Ascaris-sIgE), fecal examination for pathogenic intestinal helminths and tuberculin skin testing (TST). Histamine bronchoprovocation was tested in the group of children aged 10 years and older. RESULTS: were corrected for demographic variables, socioeconomic status, parental allergy, environmental tobacco smoke (ETS) exposure in the household, recent anthelminthic treatment and for clustering in the sampling unit. Results Ascaris-sIgE was elevated in 48% of children, Ascaris eggs were found in 15% and TST was positive in 53%. Children with elevated Ascaris-sIgE had significantly increased risk of positive SPT to aeroallergens, particularly house dust mite, atopic asthma (ever and recent), atopic rhinitis (ever and recent) and increased atopy-related bronchial hyper-responsiveness. In children with negative TST (<10 mm), elevated Ascaris-sIgE was associated with significantly increased risk of atopic symptoms (adjusted odds ratio (OR(adj)) 6.5; 95% confidence interval (CI) 1.9-22.4), whereas in those with positive TST (>/=10 mm) this association disappeared (OR(adj) 0.96; 95% CI 0.4-2.8). CONCLUSIONS: These results suggest that immune response to Ascaris (Ascaris-sIgE) may be a risk factor of atopic disease in populations exposed to mild Ascaris infection and that MTB infection may be protective against this risk, probably by stimulation of anti-inflammatory networks.     

代文胶囊治疗高血压病的疗效观察

目的：观察代文胶囊治疗高血压病的临床疗效。方法：60例高血压病患者停用其它降压药1周服用代文胶囊80mg．qd晨服，服药1周后若舒张压仍／〉90mmHg者剂量改为160mg／d，治疗前及治疗后4周分别行动态血压监测，并观察该药的副作用，治疗前后肝肾功能及电解质变化。结果：38例服用80mg／d，22例服用160mg／d，显效33例（55％）有效21例（35％）无效10例（10％），总有效率90％，治疗前后无肝肾功能，血电解质变化。结论：代文胶囊疗效确切，降压作用平稳，能防止晨问血压升高，降低心血管事件发生，值得临床推广应用。     

Ankle-brachial index and extent of atherothrombosis in 8891 patients with or at risk of vascular disease: results of the international AGATHA study.

AIMS: AGATHA (a Global Atherothrombosis Assessment) was designed to assess the extent of atherothrombosis and the use of the ankle-brachial index (ABI) in vascular patients. The principal hypotheses were that (1) in diseased patients, a low ABI was related to the number and site of vascular beds affected and (2) in at-risk patients without disease, a low ABI was related to the number of risk factors present. METHODS AND RESULTS: Patients were recruited consecutively by 482 clinicians in 24 countries and the ABI measurement was performed at a single visit. Of 8891 patients recruited, 1792 were defined as at risk and 7099 as with disease. Of the with-disease patients, 65.2% had one arterial bed affected, 27.6% two and 7.1% all three. Abnormal ABI (< or =0.9) was present in 30.9% of at-risk and 40.5% of with-disease patients. A lower ABI was weakly associated with an increasing number of risk factors in at-risk patients (r=-0.056, P=0.02) and with the site and number of arterial beds affected in with-disease patients (P<0.001). CONCLUSION: This large international study confirms that atherothrombotic disease often occurs at more than one site. The ABI is related to the risk factor profile and to the site and extent of atherothrombosis.     

Early complications of stenting in patients with congenital heart disease: a multicentre study.

AIMS: Stenting has become an established interventional cardiology procedure for congenital heart disease. Although most stent procedures are completed successfully, complications may occur. This multicentre study evaluated early complications after stenting in patients with congenital heart disease, including potential risk factors. METHODS AND RESULTS: In this combined Dutch-Belgian retrospective study, 309 consecutive patients had undergone 366 catheterizations and received 464 stents in 13 different anatomical positions (418 sites). Seventy-two stenting-related complications (19%) occurred, of which 24 (5.7%) were major. Seven procedure-related deaths were documented (2.3%). Stent malpositioning and embolization were most common (7.7%). The use of non-premounted stents tended to be associated with higher complication rates. Centre inexperience with stenting and stenting of native vs. post-surgical stenosis tended to be associated with increased major complication rates. CONCLUSION: After stenting, complications are common for congenital heart disease. The vast diversity of stenotic sites combined with relatively small patient populations makes these procedures sensitive to complications. Combining operator experience may reduce the risks of stenting in congenital heart disease. The availability of premounted stents for greater vessel diameters will likely reduce incidences of stent migration and embolization.     

Cholesterol reduction and death from noncoronary causes: evidence from randomised controlled trials*

An overview of randomised trials of cholesterol reduction (26 trials, 50,000 patients, net cholesterol reduction ?10%) provides clear evidence of a reduction in the incidence of coronary heart disease (CHD) after just a few years of treatment. Overall, the observed reduction in CHD death (9%± 3) was only half as large as the reduction in non-fatal myocardial infarction (19%±4), although both were statistically significant (2p <0.005). In these trials, 60% of all deaths were from CHD, and since treatment reduced these by about 9%, the expected reduction in total deaths was about 5–6%. This expected reduction falls within the 95% confidence interval of the observed effect of cholesterol reduction on total mortality in these trials. There were small excesses of deaths from cancer and deaths from trauma among patients allocated active treatment. However, in no single trial, nor in the trials collectively, were these increases individually statistically significant. Furthermore, the increases did not appear to be specific to any one agent nor were the increases consistent between trials of the same agent. These observations suggest that the small excesses of noncoronary deaths observed in the cholesterol reduction trials may have occurred by chance. Evidence from ongoing longer-term studies of treatments producing larger cholesterol reductions will be useful in further delineating the effects, if any, of such treatments on non-coronary mortality.     

An Autopsied Case of Interferon Encephalopathy

Abstract: A 78-year-old male with renal carcinoma was treated with a high dose infusion of interferon-alpha (IFN-alpha) for eight months. The patient had evidence of organlc brain syndrome such 88 : dysfunction of memory, slowing of behavior, and development of mental confusion that appeared eight months after the treatment. MRI at the time of mental confusion revealed difise white matter lesions. Neuropathologic findings were compatible to Binswanger's disease and Senile Dementia of Alzheimer Type (SDAT), Preexisting neurologic abnormalities including intracerebral arteriosclerosis and cerebral atrophy may increase susceptibility to unacceptably severe IFN neurotoxicity.     

女性乳头湿疹样癌与乳腺癌浸润乳头之间区别的探讨

本文对１９８０～１９８２年间．天津肿瘤医院收治可手术原发女性乳腺癌７１５侧重新复习。根据镜下在乳头皮肤见到ｐａｇｅｔ细胞以及癌直接浸润（或累及）乳头，确定乳头湿疹样癌２０例，乳腺癌浸润乳头６９例。比较两组在临床表现、病理形态和预后的差异。结果发现，乳头湿疹样癌的临床表现以乳头糜烂，结痂为主，而乳腺癌浸润乳头则以乳头凹陷、皮肤粘连、桔皮样变和乳头抬高为主；镜下形态，乳头湿疹样癌主要是在乳头表皮内见到Ｐａｇｅｔ细胞，晚期亦可浸及乳头基质。乳腺癌浸润乳头主要特点是癌细胞浸润乳腺导管，管壁可完整或被浸破，癌亦可直接浸润乳头基质，绝大多数皮肤正常，直接累及皮肤少见，均无Ｐａｇｅｔ细胞。通过本文研究，作者认为乳头湿疹样癌为乳腺癌的独立类型，其在临床表现、病理形态及预后等方面，均与乳腺癌浸润乳头有显著区别。