中国农村人群骨折基本情况分析

调查了中国≥50岁中老年农村人群20岁以后的骨折发生情况。共计8266人,骨折率为6.42%;其中男性3771人,骨折率为7.48%;女性4495人,骨折率为5.54%。男性显著高于女性(P<0.01)。同时分析了不同部位的骨折发生情况,其中髋部骨折率为0.68%。骨折与跌跤发生因素密切相关,为此本研究还阐述了最近一年中人群跌倒情况,其跌倒率为11.13%。其结果为人群骨折的预防提供了科学依据。     

带血管蒂舟骨瓣移位术的应用解剖

目的:为治疗距骨骨折提供新术式的解剖学基础.方法:在30侧灌注红色乳胶的成人下肢标本上,对舟骨背侧面形态、血供来源进行观测.结果:舟骨背侧面动脉主要来自内踝前动脉、跗内侧动脉以及足底内侧动脉浅支,分别发3～5支、1～3支和1～2支外径在0.2～1.0mm之间的骨膜支,形成骨膜动脉网.结论:以内踝前血管为蒂,可切取舟骨背侧2.0cm×1.0cm×0.5cm大小的骨瓣,用于距骨颈骨折修复.术式经临床应用证实,手术简便,效果可靠.     

Pulmonary delivery of growth hormone using dry powders and visualization of its local fate in rats.

A dry powder aerosol formed of human growth hormone (hGH), lactose and dipalmitoylphosphatidylcholine was assessed for systemic delivery of the hormone in rats. The fate of the protein locally in the deep lung was examined post-delivery. The powder was prepared by spray-drying and presented a primary particle diameter of 4.4 microm and a tap density of 0.069 g/cm(3). The mass median aerodynamic diameter was 4.4 micron in the multi-stage liquid impinger at 60 l/min using a Spinhaler device. The emitted dose and fine particle fraction were 89% and 58%, respectively. Varying the airflow rate from 30 to 90 l/min had limited impact on aerosolization properties in vitro. No hGH dimers or glycation adducts were produced during formulation of the powder. hGH absorbed into the bloodstream with a time to peak of 23 and 52 min and with an absolute bioavailability of 23% and 8% following intratracheal insufflation of the dry powder and intratracheal spray-instillation of a solution of the hormone, respectively. Confocal imaging of rat lung revealed an intense uptake of fluorescein isothiocyanate (FITC)-hGH by alveolar macrophages as early as 1 h post-delivery. A dry powder aerosol made of selected GRAS excipients improved absorption of hGH from the lung over a simple solution.     

应把防治医患纠纷作为临床医德教育的重要内容

不断强化医务人员的服务意识是消除医患纠纷的首要条件,认真培养敬业精神是避免医患纠纷的根本途径;提高道德境界是避免医患纠纷的决定因素.     

大气中苯并（a）芘容许浓度的研究

依据郑州地区大气中苯并(a)芘监测和肺癌标化死亡率调查,经相关回归分析,两者间存在高度正相关(r=0.97,P<0.01)得出回归方程y=3.94+5.57X。结合我国城市大气中苯并(a)芘污染情况和肺癌死亡率水平综合分析认为:大气中苯并(a)芘容许浓度以0.5～0.6μg/100m~3为宜。     

吉林省七年鼠情监测结果分析

吉林省经七年来的鼠情监测,基本查清与人们接触密切的鼠类,特别是传播疾病的主要鼠类的分布规律,分析出我省家鼠有两个高峰(6月和10～11月),野鼠也有两个高峰(6月和10月),这与我省流行性出血热两个高峰相吻合,鼠峰在病峰之前。1986年以后,由于我省开展大规模灭家鼠活动,家鼠高峰已不存在规律性。通过几年来的灭鼠活动,使家鼠密度呈下降趋势,城镇褐家鼠和小家鼠构成比发生变化。城镇未爆发家鼠型流行性出血热。鼠情监测为灭鼠防病工作提供了科学依据。     

Bacterial endocarditis of systemic atrioventricular valve (tricuspid valve) in corrected transposition and its surgical treatment.

We describe a case of congenitally corrected transposition of great arteries (CCTGA). Tricuspid valve replacement was performed due to valve dysfunction following bacterial endocarditis. After two weeks' antibiotic therapy haemodynamic stabilisation was obtained and the patient was operated in the third week. On cardiopulmonary bypass with 28 degrees C degree systemic hypothermia, the left atrium was approached transeptally. At exploration, the systemic atrioventricular valve was tricuspid valve and pulmonary atrioventricular valve was in shape of a mitral valve. The posterior leaflet of the tricuspid valve was ruptured and vegetations above it were observed. The valve was excised and a 29 mm St-Jude mechanical heart valve prosthesis implanted using a teflon reinforced separated suture technique. After operation the patient recovered rapidly and following six weeks' antibiotic therapy, the patient was discharged.     

导管射频消融术治疗持续性交界区反复性心动过速2例报告

本文报告两例持续性交界区反复性心动过速(PJRT)患者,应用导管射频消融术治疗,成功地阻断了位于后间隔具有递减传导特性的稳若旁路.随访7～10个月.病人无心动过速发作,提示导管射频消融术是治疗PJRT的有效方法.