一种具有高信噪比的脉搏波光电传感器的研制

目的：探讨研制一种生理信号光电传感器。方法：利用光电传感器检测通过指端毛细血管后的光强度的变化，将光信号转换成电信号，再经过电信号1/V转换、放大、滤波处理。结果：获得了清晰稳定的指端容积脉搏波。结论：高信噪比的光电传感器可用作于临床监测和生理信号分析处理系统。     

地氟醚低流量洗入紧闭环路麻醉的摄取规律

目的 研究地氟醚高浓度、低流量洗入时的摄取规律。方法 择期全麻下行上腹部手术的ASA I-Ⅱ级患者80例,随机分为A、B两组,洗入期:A组新鲜气流量为:氧气0.7 L/min;B组新鲜气流量为:氧气0.4 L/min,氧化亚氮 0.3 L/min。两组Tec-6地氟醚蒸发器刻度均为18％。维持期:两组新鲜气流量均不变,蒸发器刻度均改为8％。结果 A组平均洗入时间为（4.56±0.68）min,B组平均洗入时间为（4.05±0.52）min,二者无统计学差异（P>0.05）。两组间各时点 FA/FI均无显著差异（P>0.05）。结论 低流量洗入地氟醚、氧化亚氮时,氧化亚氮并不影响地氟醚的体内摄取过程。地氟醚低流量洗入紧闭环路麻醉安全可行。     

Effect of Captopril on Antithrombus Function of Endothelium

ＥｆｆｅｃｔｏｆＣａｐｔｏｐｒｉｌｏｎＡｎｔｉｔｈｒｏｍｂｕｓＦｕｎｃｔｉｏｎｏｆＥｎｄｏｔｈｅｌｉｕｍＸＩＯＮＧＹｉ－ｌｉ（熊一力）；ＺＨＡＯＨｕａ－ｙｕｅ（赵华月）（ＤｅｐａｒｔｍｅｎｔｏｆＭｅｄｉｃｉｎｅ，ＴｏｎｇｊｉＨｏｓｐｉｔａｌ，Ｔｏｎｇ...     

沾染液体火箭推进剂时的个人洗消技术进展

目的 回顾与分析国内外有关沾染液体火箭推进剂时个人洗消技术和方法的研究资料，提出有效的个人洗消技术和方法，以尽可能地避免染毒或减轻染毒伤员的伤害程度。资料来源与选择 结合我们已进行的有关研究和参加抢救的临床救治体会，并引用国内外公开发表的相关论文及著作。资料引用 论文28篇及3部专著。资料综合主要针对个人洗消技术的有效性与安全性对文献作者采用的方法和指标进行分析和综合。结论 迅速及时地进行有效的洗消，以尽早彻底清除沾染的毒物，是防治液体火箭推进剂中毒的首要措施，可以明显避免或减轻染毒伤员的伤害程度。     

羊水细胞培养宫内诊断的应用(附120例分析)

报告120例羊膜腔穿刺羊水细胞培养结果:在成功的99例中,发现二例染色体异常,核型为47,xy,+18和46,xx/47,xx,+F,在21例失败中出现一例眼球畸形。培养成功率为82.5%;染色体异常检出率为2.02%。无一例因羊膜腔穿刺而导致流产,但出现一例轻度羊水栓塞合并症。并对羊水细胞培养在产前宫内诊断中应用价值及术后并发症进行了讨论。     

Rib-vertebral angle asymmetry in idiopathic, neuromuscular and experimentally induced scoliosis

The concave and convex rib-vertebral angle (RVA) at levels T2–T12 was measured on AP radiographs of 19 patients with right convex idiopathic thoracic scoliosis and 10 patients with major thoracic right convex neuromuscular scoliosis. The difference between the angles on the concave and the convex sides, the RVAD, was calculated. The RVAs were also measured on radiographs from three animal groups in which spinal curves had been induced experimentally in a variety of ways. Group 1 comprised 16 rabbits that had been subjected to selective electrostimulation of the latissimus dorsi, the erector spinae and the intercostal muscles. Group 2 comprised four dead rabbits whose spines had been subjected to manual bending. Group 3 comprised eight rabbits that had undergone mechanical elongation of one rib. In both the idiopathic and the neuromuscular group, the convex RVA was smaller than the concave RVA between levels T2 and T8, with a maximal difference between T4 to T5. From T9 to T12 the concave RVA was smaller than the convex. The RVA in relation to the scoliotic segment, i.e. the apex level of the curve and the two neighbouring vertebrae above and below this level, showed similar results. With increasing Cobb angle the RVADs increased linearly with the greatest difference at the second vertebra above the apex. In the three experimental groups the pattern of the RVADs between T6 to T12 was basically similar to the findings of the clinical study. From the results of these clinical and experimental studies, it is concluded that the typical pattern of the RVAs on the concave and convex sides seems to be independent of the underlying cause of the spinal curvature. It is likely that the RVADs result from a passive mechanical adaptation of the ribs to the lateral curvature of the spine.     

Experimental studies on preventive effects of API0134 on vessel reocclusion after thrombolysis

Summary 24 model rabbits with femoral arterial thrombosis were divided into two grocps: the treatment group consisting of 12 rabbits which received API₀₁₃₄. and the control group composed of another 12 rabbits. 2 hours after recanalization by urokinase thrombolysis, reocilusion occurred only in 1/12 vessel (8%) with incomplete occlusion in the treated group, but in 8/12 (67%) with complete occlusion in the control group as assessed by angiograsphy. Pathological examination of specimen taken 24 hours after thrombolysis showed that 6/12 (50%) of the treated group gave the evidence of thrombus occlusion, and milder intimai injury and less adhered blood cells than in the control group, 83% of which had thrombus occlusion. In comparision with the control group, the function of platelet in the treated group demonstrated lower platelet aggregation rate (PAgR) and plasma thromboxane A₂ (TXA₂) level, higher prostacyclin (PGI₂) and plasminogen activator (PA) activity as well as lower plasminogen activator inhibitor (PAI) activity. From the above it may be concluded that the preventive effect of API₀₁₃₄ on reocclusion might be due to inhibition of platelets aggregation and promotion of fibrinolysis.     

青少年拔牙矫治期间对颅面部硬组织结构影响的研究

目的 研究青少年拔牙矫治时颅面部硬组织的影响。方法 选择50例为青少年恒牙He，安氏Ⅰ类患者，25例需拔除四个第一双尖牙治疗，25例无需拔牙治疗，用标准方丝弓技术矫治，共收集到完整病例43例，拔牙20例，非拔牙23例，利用X线头影测量技术，比较拔牙与非拔牙组治疗前后的变化。结果 拔牙矫治与非拔牙矫治组都存在一定的颅面部骨骼的生长，但两者矫治前后改变无明显差别。拔牙矫治明显改变了前牙位置。结论 青少年拔牙矫治期间对颅面部骨骼的改变无影响。     

健侧颈7移位治疗臂丛神经根性撕脱伤最佳时间选择的实验研究

健侧颈７移位治疗臂丛神经根性撕脱伤手术分第一阶段（健侧颈７移位到移植神经），第二阶段（移植神经另一端移植修复患侧神经），二次手术间隔多少时间才能获得最好的神经再生？选用ＳＤ大鼠及健侧颈７移位的实验模型，按二次手术间隔时间的不同（０、１、２、３、４、８、１６周）分成７组，在第二次术后１２周，进行电生理测定肌张力恢复率及组织切片的形态学观察，结果证实二次手术最佳间隔时间为４～８周．此结果可提供临床参考．     

血管内皮生长因子抗体靶向血管治疗对增生性瘢痕Ⅰ型胶原蛋白表达的影响

目的观察血管内皮生长因子(VEGF)抗体靶向血管治疗对人增生性瘢痕Ⅰ型胶原蛋白在裸鼠体内表达的影响。方法将1％TBSA深Ⅱ度创面愈合后的增生性瘢痕组织块(取自1例女性烧伤患者)植入48只BALA／C裸鼠肩胛部皮下,建立裸鼠增生性瘢痕移植模型。术后3周,将裸鼠分为大剂量组、中剂量组、小剂量组及对照组,每组12只,分别用0．01 mol／L灭菌磷酸盐缓冲液(PBS)稀释的15、10、5μg／ml VEGF单克隆抗体200μl以及等量、同浓度的PBS进行瘢痕内直接注射,每周2次,持续3周。术后45 d,测量各组裸鼠瘢痕组织的大小,计算体积;以HE染色行组织学观察;采用逆转录聚合酶链反应与蛋白质印迹法分析瘢痕组织Ⅰ型前胶原蛋白mRNA和Ⅰ型胶原蛋白的表达。结果大剂量组、中剂量组、小剂量组瘢痕体积分别为(55．3±4．1)、(67．9±5．7)、(78．9±5．5)mm3;与对照组(85．0±7．3)mm3比较,大剂量组、中剂量组瘢痕体积明显变小(P< 0．05)。大剂量组、中剂量组血管和成纤维细胞较少,胶原纤维减少,排列较整齐。与对照组比较,大剂量组和中剂量组Ⅰ型前胶原蛋白mRNA和Ⅰ型胶原蛋白表达明显降低;小剂量组与之接近。结论VEGF抗体靶向血管治疗可抑制增生性瘢痕血管形成、胶原表达及瘢痕生长。