SMART POCT与日立7180生化仪检测糖化血红蛋白的一致性分析

目的探讨SMART POCT和日立7180检测糖化血红蛋白(HbA1c)的结果相关性。方法首先分别对SMART POCT和日立7180生化仪检测HbA1c进行精密度评价,再随机选取20份样本在两台仪器上分别进行测定,对测定结果进行相关性分析。结果两台仪器的精密度高,所测结果的相关性好,相关系数(r2)为0.981 1。结论 SMART POCT和日立7180检测HbA1c具有很高的一致性。     

可吸收钉与股骨内髁解剖钢板修复内侧髁Hoffa骨折:钢板贴附较好固定牢靠

背景:股骨内侧髁Hoffa骨折常伴有关节面粉碎,如治疗不当可出现骨折不愈合、膝关节功能障碍等并发症。单独使用螺钉固定很难实现粉碎骨折块整体化,固定强度欠佳;另外普通钢板用于内侧髁Hoffa骨折时往往需要术中进行不断塑形,且对螺钉固定方向有一定限制,影响复位后骨折块的稳定性。目的:探讨股骨内侧髁Hoffa骨折损伤特点并分析应用可吸收钉结合股骨內髁解剖钢板修复此类骨折的效果。方法:回顾性分析2010年5月至2013年6月天津医院创伤骨科采用可吸收钉结合股骨远端内侧解剖钢板修复股骨内侧髁Hoffa骨折12例患者的病例资料,男8例,女4例;年龄21-67岁,平均42岁。治疗前均行膝关节正、侧位X射线片及CT、MRI检查。12例患者均行切开复位内固定治疗,术中采用可吸收钉结合解剖钢板内固定骨折,治疗后随访观察患者骨折愈合及膝关节功能恢复情况。结果与结论:所有患者均获得随访,随访时间16-48个月。骨折均愈合,无内固定松动及骨折再移位等并发症发生,患者膝关节屈曲范围为110°-135°,按膝关节Letenneur评分标准评定疗效,优9例,良2例,可1例,优良率为92%。可见可吸收钉固定可实现关节面粉碎骨块的整体化,再结合股骨內髁解剖钢板治疗内侧髁Hoffa骨折,可进一步坚强固定骨折,操作方便,钢板贴附较好,具有固定牢靠、并发症少、可早期进行功能锻炼、修复效果好等优点,可为临床修复此类骨折提供参考。     

Greater scaffold permeability promotes growth of osteoblastic cells in a perfused bioreactor

Pore size and porosity have been widely acknowledged as important structural factors in tissue‐engineered scaffolds. In fact, scaffolds with similar pore size and porosity can provide important and varied permeability due to different pore shape, interconnectivity and tortuosity. However, the effects of scaffold permeability on seeded cells remains largely unknown during tissue regeneration in vitro. In this study, we measured the Darcy permeability (K) of tri‐calcium phosphate scaffolds by distributed them into three groups: Low, Medium and High. As a result, the effects of scaffold permeability on cell proliferation, cellular activity and growth in the inner pores were investigated in perfused and static cultures in vitro. Results demonstrated that higher permeable scaffolds exhibited superior performance during bone regeneration in vitro and the advantages of higher scaffold permeability were amplified in perfused culture. Based on these findings, scaffold permeability should be considered in future scaffold fabrications. Copyright © 2013 John Wiley & Sons, Ltd.     

皮肤软组织扩张术联合毛囊单位提取技术治疗烧伤后瘢痕性秃发

目的 探讨并分析皮肤软组织扩张术联合毛囊单位提取技术治疗烧伤后瘢痕性秃发的效果.方法 2007年3月至2013年6月共收治48例患者,秃发面积均大于25 cm2.一期手术行扩张器置入,注入额定容量的200％～ 300％;二期手术在注水完成后8周,行局部皮瓣转移修复术;三期手术在皮瓣修复后1年,行瘢痕区单体式毛发移植.结果 经扩张器联合毛发移植后,48例患者瘢痕区毛发生长自然,随访5年,效果满意.三期手术后的毛发形态满意度的VAS评分为(8.2±2.1)分.结论 皮肤软组织扩张术联合毛囊单位提取技术对头部烧伤后瘢痕性秃发修复效果确切.     

提踵运动对中老年人骨质改善程度的研究

目的 研究提踵运动对中老年人骨密度的改善情况。方法 以中老年人为研究对象,采用提踵运动对受试者的足跟给予应力剌激干预,以跟骨骨密度为主要参考指标,结合受试者的主观感受,经过3个周期的训练,对提踵试验组与对照组受试者的跟骨骨密度测试结果进行对比分析。结果 应力剌激对改善中老年男性的跟骨骨密度有一定帮助,提踵运动对于中老年男性跟骨骨密度的改善有较好的效果。女性对于应力剌激的阈值低于男性。结论 适宜负荷强度和频率的应力剌激,对改善处于骨质疏松情况下的中老年人跟骨骨密度有显著效果。     

法舒地尔对阻塞性黄疸大鼠肝缺血再灌注损伤的影响

目的 探讨法舒地尔对阻塞性黄疸大鼠肝缺血再灌注损伤的影响.方法 成熟SD大鼠160只随机分成实验组(A组)及对照组(B组)两大组,两组再分别分为4个亚组,分别为假手术组(A1、B1组)、阻塞性黄疸组(A2、B2组)、肝缺血再灌注组(A3、B3组)及阻塞性黄疸+肝缺血再灌注组(A4、B4组).A2、B2组采用双重结扎切断胆总管的方法建立模型,A3、B3组采用阻断肝门部血管30 min后再灌注的方法建立模型.A4、B4组于建立阻塞性黄疸模型1周后再次建立缺血再灌注模型.A组于缺血前30 min腹腔内注射法舒地尔10 mg/kg,B组对应注射等量生理盐水.两组分别于再灌注0h、1h、2h、6h取材,检测血清肝功能改变及血清内皮素1水平.采用SPSS软件对重复测量结果进行统计分析,光镜下观察肝脏病理学改变.结果 实验组各时点血清转氨酶水平、血清内皮素1水平均显著低于对照组(P＜0.05),实验组各时点光镜下肝脏病理组织学损伤也较对照组明显减轻.结论 法舒地尔对阻塞性黄疸大鼠的肝缺血再灌注损伤具有保护作用.     

Postoperative Acute Pulmonary Embolism Following Pulmonary Resections

Postoperative acute pulmonary embolism after pulmonary resections is highly fatal complication. Many literatures have documented cancer to be the highest risk factor for acute pulmonary embolism after pulmonary resections. Early diagnosis of acute pulmonary embolism is highly recommended and computed tomographic pulmonary angiography is the gold standard in diagnosis of acute pulmonary embolism. Anticoagulants and thrombolytic therapy have shown a great success in treatment of acute pulmonary embolism. Surgical therapies (embolectomy and inferior vena cava filter replacement) proved to be lifesaving but many literatures favored medical therapy as the first choice. Prophylaxis pre and post operation is highly recommended, because there were statistical significant results in different studies which supported the use of prophylaxis in prevention of acute pulmonary embolism.Having reviewed satisfactory number of literatures, it is suggested that thoroughly preoperative assessment of patient conditions, determining their risk factors complicating to pulmonary embolism and the use of appropriate prophylaxis measures are the key options to the successful minimization or eradication of acute pulmonary embolism after lung resections.     

多中心完全随机、标准治疗平行对照评价京万红软膏治疗糖尿病足慢性创面的临床研究

目的：：通过多中心完全随机、标准治疗平行对照方法评价京万红软膏治疗糖尿病足慢性创面的疗效。方法：本研究共有11家医院参加,采用多中心完全随机、标准治疗平行对照、前瞻性临床研究设计。131例糖尿病足溃疡患者随机分为京万红软膏组67例和对照组64例,两组创面面积分别为(16.7±6.1)cm2和(15.9±8.3) cm2,创面形成时间(45.7±68.3)d和(52.5±79.6)d 。两组分别用京万红软膏或复方磺胺嘧啶锌凝胶涂于创面,观察疗程均为20周。结果：两组患者年龄、糖尿病病程、血常规、肝功能、肾功能等数据差异无统计学意义。京万红组于2、5、10、15周创面愈合速率明显优于复方磺胺嘧啶锌凝胶组,以第5周、10周最为明显(P<0.01)。京万红组创面达到完全上皮化平均时间为(46.5±15.6)d,复方磺胺嘧啶锌凝胶组为(67.9±17.9)d,差异显著(P<0.05)。结论：京万红软膏与复方磺胺嘧啶锌凝胶均有促进糖尿病足创面愈合的作用,京万红软膏作用更优。