男性急性冠脉综合征患者多支病变预测因素

目的 :研究急性冠脉综合征男性患者多支冠状动脉病变的临床预测因素。方法 :共 10 4例男性患者入选 ,年龄 6 4 .9± 9.6岁。综合患者的人群因素、临床特征和无创伤检查结果 (血液生化和心脏超声等 ) ,结合冠状动脉造影结果进行Logistic回归分析。结果 :冠状动脉造影结果显示单支病变 2 4例 ,多支病变 80例。以多支病变为因变量 ,慢性胸痛、血尿酸水平增高、左心室射血分数降低和左心房扩大是其有统计学意义的自变量 ,其余因素无统计学意义。结论 :慢性胸痛、血尿酸水平增高、左心室射血分数减低和左心房扩大是急性冠脉综合征男性患者多支病变的预测因素。     

绝经后阴道出血的相关因素分析

目的探讨绝经后阴道出血的病因及相关因素。方法对129例绝经后阴道出血患者的临床资料进行回顾性分析。结果因良性疾病引起的出血占51.16%,非器质性疾病占25.58%,恶性肿瘤占23.26%,患者出血时年龄大,绝经年限长恶性肿瘤发生率高。结论绝经后阴道出血的主要原因是良性疾病和非器质性病变,但恶性肿瘤仍占一定比例。因此对绝经后阴道出血患者应采取综合的检查手段,明确病因,对因治疗。     

Use of the Noninvasive Ankle Distractor With Talar Dome Osteochondral Graft Transplantation

Talar dome lesions greater than 1 cm in diameter are often treated with ankle joint mosaicplasty. The purpose of this article is to present the use of a noninvasive ankle distractor that can improve access to the talus when used with a malleolar osteotomy. The use of the distractor allows for graft insertion at a more appropriate angle in relationship to the talar cartilage, avoidance of invasive distractor usage, and potential use of a smaller osteotomy.     

清开灵治疗缺血性视乳头病变40例疗效分析

目的 :探讨清开灵治疗缺血性视乳头病变的疗效。方法 :用前瞻性评估研究方法 ,将缺血性视乳头病变 70例患者按随机原则进行分组。治疗组 4 0例 ,用清开灵辅助治疗 ;对照组 30例 ,单纯用西医治疗 ;以视力为主要评估指标。结果 :治疗组与对照组愈显率及总有效率分别为 77 5 % ,6 0 0 %和 95 0 % ,83 3% ,差异有显著性 (P <0 0 1) ,无毒副作用。结论 :用清开灵辅助治疗缺血性视乳头病变疗效肯定     

Bilateral perioral sensory symptom after unilateral stroke: Does it have a localizing value?

Bilateral perioral sensory dysfunction due to unilateral cerebral lesion is rare, and has been thought to be caused by midline brainstem lesions. Six patients are described herewith, with bilateral perioral sensory symptoms due to unilateral strokes that do not involve the mid-brainstem region. Brain-computed tomographic scan and magnetic resonance imaging demonstrated unilateral cerebral strokes in the thalamus, posterior limb of the internal capsule, basal ganglia, fronto-parietal cortex and the insular-frontal subcortical area. This observation suggests that bilateral perioral sensory symptoms do not have a localizing value. Possible pathogenetic mechanisms for this sign are discussed.     

损毁双侧蓝斑区引起血尿的实验研究

用电解损毁方法损毁Ｗｉｓｔａｒ成年雄性大鼠的双侧蓝斑区。结果出现膀胱扩张、尿液潴留和血尿等，膀胱和输尿管尿液有大量红细胞和血红蛋白，膀胱粘膜和肾脏充血．结果表明：损毁双侧蓝斑区后不仅有膀胱出血，还有肾脏出血。这个实验可用作研究“特发性”血尿的动物模型。     

Protective Effect of Tetrandrine against Excitatory Amino Acids induced Neuronal Injury in Cortical Culture

兴奋性氨基酸类神经毒剂与粉防己碱（ｔｅｔｒａｎｄｒｉｎｅ，Ｔｅｔ）共同作用于原代培养胎鼠大脑皮层神经元２４小时，发现１０７，１０６ｍｏｌ·Ｌ１Ｔｅｔ明显降低５０μｍｏｌ·Ｌ１谷氨酸（ｇｌｕｔａｍａｔｅ，Ｇｌｕ），３００μｍｏｌ·Ｌ１βＮｍｅｔｈｙｌａｍｉｎｏＬａｌａｎｉｎｅ（ＢＭＡＡ，ＮＭＤＡ受体激动剂）和２０μｍｏｌ·Ｌ１βＮｏｘａｌｙｌａｍｉｎｏＬａｌａｎｉｎｅ（ＢＯＡＡ，ｎｏｎＮＭＤＡ受体激动剂）导致的培养液乳酸脱氢酶（ｌａｃｔａｔｅｄｅｈｙｄｒｏｇｅｎａｓｅ，ＬＤＨ）活性的增高；细胞形态损害减轻，细胞数量增加。对２０μｍｏｌ·Ｌ１ＮＭＤＡ介导的神经元损伤改变无影响。提示Ｔｅｔ对某些Ｇｌｕ类神经毒剂引起的胎鼠大脑皮层神经元损伤有一定保护作用，其机制可能是抑制细胞膜上的Ｎａ＋通道开放，阻止膜去极化而影响电压依赖性Ｃａ２＋通道启动。对ＮＭＤＡ受体可能亦有一定作用。     

An Electron Microscopic Study on the Process of Acid Demineralization of Cortical Bone

Demineralization has been shown to foster osteoinductive properties of cortical bone grafts, yet little is known about the process of demineralization and how to control it. The purpose of this study was to investigate the process of cortical bone demineralization by using scanning electron microscopy to evaluate how hydrochloric acid demineralizes cortical bone. Results showed that in the demineralization of diaphyseal cortical bone specimens using hydrochloric acid, a uniformly thick circumferential band of demineralized bone matrix surrounds an inner undecalcified bone core as the process of demineralization occurs. The interface between the demineralized and mineralized section of the bone specimens was extremely sharp. This interface between demineralized and undemineralized bone was noted to advance as a reaction front with increasing demineralization which resulted in continuous shrinkage of the inner cortical bone core. This study suggests that cortical bone demineralization can be best described using an advancing reaction front theory, and this explanation can be used for implementation of the concept of controlled demineralization. Received: 19 December 1996 / Accepted: 25 April 1997