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排序方式: 共有919条查询结果,搜索用时 15 毫秒
1.
目的:本研究采用多济敷外用于面部皮损磨削术后创面,观察其对创面愈合时间、皮肤色素沉着等的变化。方法:采用区域神经阻滞或局部浸润麻醉,对不同类型的面部皮损34例进行皮肤磨削治疗,术后创面应用多济敷或凡士林纱布作为底层敷料包扎创面,术后换药一次,保留底层敷料。结果:2001年8月至2003年9月间,通过自身对照,34例面部磨削术后采用多济敷治疗组较凡士林纱布组创面愈合时间缩短(P<0.05),经过6个月至2年的随访,皮肤色素沉着也有明显改善。结论:多济敷有利于缩短面部磨削术后创面愈合时间,改善面部色素沉着,外观满意。 相似文献
2.
为探讨无名异接骨冲剂加速骨折愈合的作用机理,选用55只新西兰大白兔,随机选择5只作为正常组;另50只在无菌条件下造成双桡骨标准骨折模型。将50只骨折兔随机平均分为实验组和对照组,实验组用无名异接骨冲剂每天4g/kg溶于20ml蒸馏水中分早晚两次灌胃;对照组用20ml蒸馏水灌胃。于骨折后第1,2,3,4及5周用断颈法每次每组处死5只兔,取骨痂进行抗骨形态发生蛋白(BMP)单克隆抗体免疫组化染色,并用CMIAS型图像分析仪对BMP含量进行定量分析。结果发现:实验组骨折局部BMP含量明显高于正常组(P<0.01);第1,2周实验组明显高于对照组(P<0.01);实验组BMP高峰出现在第2周,而对照组出现在第3周。认为,无名异接骨冲剂能促进成骨细胞合成BMP,使BMP峰值提前,从而加速骨折愈合。 相似文献
3.
Lyall A. J. Higginson Edward M. Farrell Virginia M. Walley Rodrick S. Taylor Wilbert J. Keon 《Lasers in medical science》1989,4(2):85-92
Injury associated with laser-induced tissue ablation may be reduced by using pulsed energy delivery at low repetition rates, as opposed to using continuous wave energy delivery. This study was designed to examine the similarities and differences between these two systems as regards the healing process, and to examine whether one is superior to the other. In order to test this postulate, the healing response of normal and atherosclerotic aorta were examined after exposure in vivo to argon and excimer (XeCl 308 nm) laser radiation in hypercholesterolemic swine. Swine were fed hyperlipidemic diets for eight months following balloon denudation of the descending aorta. Following general anaesthetic, the descending aorta was isolated and laser burns were made on both normal and atherosclerotic intima using a continuous wave argon laser delivered through a 50 diameter quartz fibre, and a XeCl excimer laser carried through a 1 mm diameter fibre. Energy levels of 3 to 5 J were applied with the argon laser. The pulse duration for the excimer laser was 30 ns and craters were produced using 10 to 60 pulses at a repetition rate of 20 Hz and an energy density of 2 J cm–2.Forty-eight hours after laser application, craters created by both lasers were filled with thrombus material. Argon burns were surrounded by thermal and acoustic injury which was not seen with excimer burns. Three weeks after laser application all crater surfaces were reconstituted. Unlike the excimer burns, argon craters demonstrated necrosis well beyond the crater margins and were characterized by multinucleate giant-cell reaction surrounding char debris. By nine weeks both excimer and argon laser burns were covered by fibrous tissue but could be distinguished by the fact that char debris and subjacent tissue injury arose with the argon burns.The results suggest that both lasers can be used to remove focal atherosclerotic plaque from arteries without inducing excessive thrombogenicity. Rapid healing is observed with both; however, damage to surrounding tissue is significantly greater with a continuous energy delivery laser as opposed to pulsed energy delivery.Work supported in part by: Heart and Stroke Foundation of Ontario, Grant-in-Aid No. 5-17 相似文献
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5.
Robert Guidoin PhD Allan R. Downs MD Xavier Barral MD Michel Marois MD Paul-Emile Roy MD Martin King P. Eng Camille Gosselin MD 《Annals of vascular surgery》1986,1(3):369-373
One of the early diamond crimped knitted polyester (Dacron) grafts was surgically excised after implantation for 25 years in the aorto-billiac position because of false aneurysm formation at the three anastomotic sites. The sutures were no longer visible. While the areas around the false aneurysm were poorly incorporated, the graft limbs were well encapsulated with some endothelial-like cells on the luminal surface. The integrity of the graft was well preserved despite mild fraying and the disruption of one stitch. 相似文献
6.
BackgroundIrrespective of the treatment method, union is the ultimate goal of any fracture treatment. However, nowadays, rather than the physician-based clinico-radiological methods, the patient-reported outcome measurements assessing their quality of life and function are gaining much popularity. This is specifically true in the part of the world where the patient needs almost complete degree of hip/knee flexion – for social, cultural, religious or occupational reason(s). The ability to squat can assess the mobility and stability of joints and thus the quality of squatting is a proxy reflection of the functional outcome after fixation of lower limb fracture. Thus, we studied to determine the inter-observer and intra-observer reliability of Radiographic Union Score for Tibia (RUST) and Squat and Smile (S & S) test in clinical photograph. We further calculated the sensitivity and specificity of S & S test in predicting healing of lower limb fracture fixed by intramedullary interlocking nail considering RUST as the gold standard.MethodsThis was a retrospective study of prospectively collected data of solid Surgical Implant Generation Network (SIGN) intramedullary interlocking nailing from a single, university-based, high volume tertiary center where 56 consecutive adults with either tibial or femoral shaft fractures fixed with a SIGN nail within one year and not requiring any surgery till minimum of eighteen-month follow-up were included. Cases without either Anterior-Posterior (AP) view and/or Lateral (Lat.) view follow-up x-ray(s) or proper S & S clinical photograph (at least 1.5-year post fixation) were excluded. The x-rays (RUST criteria) and clinical photograph (S & S grading) were scored by two independent and blinded observers each and repeated after 1 month.ResultsThe overall intra-observer reliability was from 0.773 to 0.825 and inter-observer reliability from 0.635 to 0.757 for RUST scoring which was from 0.687 to 0.785 and from 0.301 to 0.650 respectively for S & S scoring. The sensitivity and specificity of S & S in predicting fracture healing were up to 82.22% and 63.64% respectively.ConclusionThe S & S test is reliable to predict the healing of lower limb fracture fixed with an intramedullary nail. The test is more useful to determine healed fractures than to determine non-healed ones. (sensitivity being higher than specificity) 相似文献
7.
重组人表皮细胞生长因子对人皮肤细胞增殖作用的研究 总被引:3,自引:0,他引:3
目的:观察重组人表皮生长因子(recombinant human epidermal growth factor,rhEGF)对人表皮细胞增殖的变化。方法:运用包皮环切术后收集培养角质细胞,不同浓度的重组人表皮细胞生长因子处理细胞,MTT法测细胞生长率;流式细胞仪检测细胞周期以及蛋白的表达。结果:5~10ng·ml^-1重组人表皮细胞生长因子可促进人表皮细胞细胞生长。流式细胞仪检测10ng·ml^-1重组人表皮细胞生长因子处理后细胞增殖明显,S和G2/M期细胞数明显增加。结论:重组人表皮细胞生长因子可促进细胞生长以及切口愈合。 相似文献
8.
在本原健康理论的框架下,从自然、色彩、标识、声音、光线、艺术品、文化活动与社会支持8个方面,对北大国际医院住院部前花园的疗愈环境进行实地调研与分析,总结出了其设计所存在的问题与可借鉴的经验,为其他综合医院疗愈花园的设计提供参考。 相似文献
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