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目的对儿童血管迷走性晕厥(VVS)的传统诊断程序与新诊断程序进行卫生经济学评价。方法采用回顾分析方法,根据不同的诊断程序(即传统诊断程序和新诊断程序),将1995年1月至2005年5月北京大学第一医院儿科确诊的81例VVS患儿分为2组,分别计算其就诊费用、检查费用、住院日、确诊日等,运用经济学最小成本分析法进行评价。结果新诊断程序的平均就诊费用比传统诊断程序少耗费1668.80元;新诊断程序的平均就诊检查费用比传统诊断程序少耗费1413.30元。结论新诊断程序对确诊儿童血管迷走性晕厥具有良好的经济学效益,值得临床推广。     

胃间质瘤的影像学诊断

胃间质瘤(gastric stromal tumor,GST)是一种较少见的独立起源于胃肠道原始间叶组织的非定向分化的肿瘤,属于消化道间叶性肿瘤[1]。本文报告经手术、病理和免疫组织化学检测9例GST的影像学表现,并探讨其影像学检查的诊断价值。1材料与方法1.1一般资料本组男5例,女4例,年龄43~70岁,平均52岁。临床表现上腹部不适、胀痛、乏力和纳差9例,恶心呕吐5例,黑便3例,消瘦、便秘2例,胃手术史1例。病程1~6个月。查体腹部触及包块6例。1.2方法9例行B超检查,8例行上消化道造影检查,6例行螺旋CT平扫和增强扫描,2例行MRI平扫和增强扫描。手术9例均行光…     

AN UNUSUAL BILATERAL VAGAL PARAGANGLIOMAS： ONE CASE STUDY

VAGAL paraganglioma VP)is an uncommonneoplasm originating from neural crest paragan-glion cells located along the vagus nerve,repre-senting less than5%of all paragangliomas of the head andneck.1Despite improvement in microsurgical techniques,management of…     

主动脉瘤腔内隔绝术

主动脉的扩张性疾病可分为真性动脉瘤、动脉夹层（aortic dissection，AD）和假性动脉瘤。随着这类疾病发病率和检出率逐年提高，人们对它们的关注程度也不断提高。如何治疗他们，成为摆在临床医生面前的难题。1991年，Parodi率先报告了支架-人造血管复合体（直型）在腹主动脉瘤治疗中的应用，成为腔内血管治疗历史上的一个里程碑。随着医疗器械的不断发展、技术的不断完善、经验的不断积累总结，微创、安全的腔内隔绝术在主动脉扩张性疾病中的治疗中得到广泛的认可，并在全球范围内迅速推广。     

Analysis of brain-stem auditory evoked potential and visual evoked potential in patients with Parkinson disease

INTRODUCTION The exact cause of Parkinson disease (PD) has not been known yet[1]. The overwhelming progress had been made in the treatment and pathogenesis of PD in recent 30 years, especially 10 years[2]. But it is still no way now to prevent or postpone…     

重度苯妥英钠中毒的药学监护

目的首先确定中毒药物,然后通过测定血药浓度以了解中毒程度,为重度苯妥英钠中毒患者临床抢救治疗提供依据。方法间隔一定时间采集患者静脉血,萃取血中药物,在211 nm处以反相高效液相色谱法定性,明确中毒药物并测定血药浓度。结果在苯妥英中毒患者中最高血药浓度为68.94 mg.L-1,接近治疗浓度上限的3.5倍。结论患者为重度中毒,危及生命,需临床药师与临床医师积极配合,施行全程药学监护。     

Effects of bimatoprost 0.03% on ocular hemodynamics in normal tension glaucoma.

PURPOSE: The aim of this study was to investigate the effects of bimatoprost 0.03% on ocular hemodynamics in patients with normal tension glaucoma (NTG). METHODS: Twenty-two (22) patients with NTG were consecutively recruited. After basic eye examination and diurnal intraocular pressure (IOP) measurement, color Doppler imaging was used to measure the peak systolic and end diastolic velocities and resistive index of the central retinal, lateral posterior ciliary, and medial posterior ciliary arteries. Patients received bimatoprost 0.03% for 4 weeks, and these measurements were then repeated. The worse eye of each NTG patient was used in the statistical analysis. RESULTS: Bimatoprost 0.03% significantly reduced mean IOP from 15.1 +/- 3.8 mmHg at baseline to 12.0 +/- 2.9 mmHg after treatment in our sample of NTG patients (P < 0.001). No significant changes in blood velocities or resistance indices were observed in the retrobulbar vessels after the 4-week treatment. CONCLUSIONS: Topical bimatoprost 0.03% significantly reduced IOP in our NTG patients without causing significant hemodynamic changes in the retrobulbar vessels.