ASSESSMENT OF URINE SATURATION AND INHIBITORY INDEX IN PATIENTS WITH CALCIUM OXALATE KIDNEY STONE AND NORMALS

The formation of calcium oxalate nephrolithiasis can be estimated by measuring the concentration of calcium oxalate versus the inhibitory role of crystal formation in the urine. In recent studies, the calcium oxalate saturation index and the inhibitory activity (by modified Sarig's method) of the urine during fasting and after oral calcium loading in normal subjects and in patients with calcium nepliro- lithiasis were determined. It was shown that, in normal comrols after calcium loading the inhibitory activity of the urine increased in parallel with the increase in urinary excretion of calcium oxalate; in contrast, in patients with kidney stones, it remained unchanged or fell slightly. This abnormal response might result in a disturbance of the saturation-inhibi- tion balance and formation of kidney stone. In normal individuals, there may be a "protective re- sponse" to prevent the precipitation of calcium oxalate when the urrine is oversaturated with calcium oxalate while a defect of the "protective response" in patients may be an important factor in calcium oxalate stone formation.     

术前孤立性CRP升高与体外循环术后并发症的相关性

目的探讨无感染的、术前孤立性C-反应蛋白(CRP)增加,对于体外循环心脏术后的结果,是否有预测性价值。方法分术前孤立性CRP升高(10.5～70.2mg／L)50例(A组)与CRP正常(＜10mg／L)50例对照(B组),B组匹配A组在年龄、性别和疾病种类,两组均进行体外循环心脏手术。结果A组脓毒性并发症(20％)比对照组(2％)多(P＜0.01)。这些病人微生物学阳性仅10％。A组中需要儿茶酚胺支持的占28％,而B组仅12％(P＜0.05)。A组较B组术后需呼吸机支持的时间明显延长(25.2±6.2h比6.6±0.5h)(P＜0.01)、ICU滞留时间也较B组长(4.6±0.8d比2.6±0.3d)(P＜0.05)。结论术前孤立性CRP升高的病人,体外循环术后,发生脓毒性并发症的可能性明显增加。且大多数病例微生物学实验阴性,推测大多数脓毒性并发症是由于全身炎症反应综合征的原因。     

颈部囊肿与瘘管的诊断和治疗

目的：总结颈部囊肿与瘘管的诊治经验。方法：93例行手术治疗,其中鳃裂囊肿15例,鳃裂瘘管10例,皮样囊肿1例,囊状淋巴管瘤4例,甲状舌骨囊肿37例,甲状舌管瘘管25例,癌性淋巴液囊肿1例,随访1－10年。结果：93例中,囊性淋巴管瘤1例复发后失访,另1例行2次手术,癌性淋巴液囊肿1例半年后死于肺转移,鳃裂瘘管2例3次手术,甲状舌管瘘管1例复发,鳃裂瘘管术后1例迟发性面瘫,一次手术治愈,无术后并发症。结论：颈部囊肿与瘘管的诊断除依据术前检查外,主要是依据术中的发现和术后病理检查。B超、CT等是有效的辅助检查.手段治疗上应彻底切除囊壁与瘘管,避免复发。术中应避免损伤颈部的大血管和神经。甲状舌管瘘管须切除舌骨中段2cm,这是防止术后复发的关键。     

Approach selection and outcomes of craniopharyngioma resection: a single-institute study

Neurosurgical Review - Since there are many approaches for successful craniopharyngioma resection, how to choose a suitable approach remains problematic. The aim of this study was to summarize...     

Despite Equivalent Outcomes,Men Receive Neoadjuvant Chemotherapy Less Often Than Women for Lymph Node-Positive Breast Cancer

Annals of Surgical Oncology -     

Latency to enter a mirrored chamber: a novel behavioral assay for anxiolytic agents

Many animal species exhibit approach-avoidance responses upon the novel placement of a mirror into an individual animal's environment. With a view toward identifying new behavioral measures with qualitatively or quantitatively different responses to anxiolytic agents, we developed a mirrored chamber apparatus for which adult male BALB/cByJ mice showed an extended latency to enter. Administration of diazepam significantly reduced this latency to enter a mirrored chamber in a dosage-dependent manner. The psychomotor stimulant, methylphenidate, had no effect on latency to enter the mirrored chamber at a dose which stimulated locomotor activity to the same extent as diazepam. Thus, the decreased latency to enter the mirrored chamber brought about by diazepam seems unlikely to reflect the motor effects of this benzodiazepine. The potency of diazepam was significantly lower in the mirrored chamber assay than it was on three other measures of exploratory activity--"head-dipping" performance, plus-maze performance and locomotor activity stimulation. The findings of our study indicate that the mirrored chamber method is simple to carry out, nonpunishing, rapid and quantitative and that it possesses pharmacological attributes which distinguish its response to anxiolytics from other assays of exploratory behavior.     

QT Dispersion Level and Its Clinical Significance.in Dilated Cardiomyopathy

［1］Richardson CP, Mckenna RM, Bristow CM, et al.Report of the 1995 Word Health Organization/International Society and Federation of Cardiology Task Force on the definition and classification of cardiomyopathies. Circulation, 1996,93: 841 ［2］Barr CS, Naas A, Freeman M, et al. QT dispersion and sudden unexpected death in chronic heart failure. Lancet, 1994,343:327 ［3］Martin AB, Garson A, Perry JC, et al. Prolonged QT interval in hypertropic and dilated cardiomyopathy in children. Am Heart J, 1994,127(1):64 ［4］Pye M, Quinn AC, Cobble SM. QT dispersion: a non-invasive marker of susceptibility to arrhythmia in patients with sustained ventricular arrhythmias?Br Heart J, 1994,71(5):51 ［5］Berger RD, Kasper EK, Baughman KL, et al. Beat to beat QT interval variability: novel evidence for repolarization lability in ischemic and non ischemic dilated cardiomyopathy. Circulation, 1997, 96 (5):1557 ［6］Wolfram G, Ulrike S, Volker M, et al. QT dispersion and arrhythmic events in idiopathic dilated cardiomyopathy. Am J Cardiol, 1997,78: 458 ［7］Fei L, Goldman JH, Prasal K, et al. QT dispersion and RR variations on 12-lead ECGs in patients with congestive heart failure secondary to idiopathic dilated cardiomyopathy. Eur Heart J, 1996,17: 258 ［8］Pan YZ, Guo NS, Xing ZF, et al. The relation between QT dispersion and ventricular arrhythmia of dilated cardiomyopathy. Chin J Inter Medi, 1996,35(11):73 ［9］Galinier M, Vialette JC, Fourcade J, et al. QT interval dispersion as a predictor of arrhythmic events in congestive heart failure. Importance of aetiology. Eur Heart J, 1998,19(7) :1054