摘要：烧伤湿性医疗技术(MEBT/MEBO)现已形成了较为系统的皮肤原位再生学术体系,由于PBL教学法强调培养学生分析问题和解决问题的能力,强调基础学科与临床医学的密切联系,通过尝试在七年制医学生外科学临床教学中引入PBL(Problem-based learning teaching method)教学法,以期达到提高学生的临床综合分析能力和临床操作技能之目的。作者从MEBT/MEBO教学目标、问题的设计及小组讨论方案各方面提出了具体需要解决的问题,对PBL应用于MEBT/MEBO教学就必要性、优越性、缺陷性及存在的问题等方面进行思考和分析,并提出了其发展展望。

摘要：<正> The article expounds the therapeutic features of the Moist Exposed Burn Therapy(MEBT)in the treatment of-burn injuries by means of experimental research data and clinical application experiences about MEBT and confirmsthat the principle and method of conventional dry therapy for burn injuries is contrary to burn pathogenesis,whileMEBT is an effective medical technique which is in conformity with burn pathogenesis at present.Histogical studies confirmed:microscopical examination of wound tissue treated with dry exposure therapyshowed that the granulation tissue was atrophic,in which the lobocytes exudated,collagenous fibers wereeosinophilous.An inanimate sign was emerged in the granulation tissue.The wound tissue treated with MEBT wasfull of vitality,fibroblasts proliferated actively and there were aboundant blood vessels.The comparison study be-tween amnion overlying therapy and MEBT in the treatment of superfcialⅢ°burnt wound confrmed that the latercould make the wound heal through epidermization.The

摘要：Background The efficacy of pulsed dye laser combined (PDL) and UltraPulse fractional CO2 in treatment of hypertrophic scars is well documented. The present study investigates the efficacy of moist exposed burn ointment (MEBO)/moist exposed burn therapy (MEBT) in postlaser wound management. Methods Sixty-one patients with immature, red hypertrophic scars were enrolled in this clinical trial. Patients were randomly divided into two groups: (a) the MEBO treatment group (n = 30) and (b) the control group (n = 31) treated with chlortetracycline hydrochloride ointment. Demographic data such as age, gender, and cause of scars were recorded. A visual analogue score (VAS) was collected to measure pain at 1, 6, 24, 72 hours, and 7 days post-treatment. The Vancouver Scar Scale (VSS) was used to determine the response of the scars before and 3 months after the treatment. The wound healing time and pigmentation scores were also recorded. Results No significant differences were found in age, gender, and etiology of the scars in the two groups. The VAS scores in MEBO group were significantly lower than the control group within the first 3 days after treatment. The wound healing time of the MEBO group was significantly shorter than the control group. For both groups, VSS scores were significantly decreased and the scar markedly improved. However, the VSS scores were significantly lower in the MEBO group compared with the control group 3 months after treatment and pigmentation formation was dramatically lower in MEBO group compared with the control. Conclusion MEBT/MEBO treatment reduced the post-treatment pain, shortened the wound healing duration, promoted the overall scar condition, and reduced the incidence of pigmentation.

摘要：目的:观察烧伤湿性医疗技术／美宝湿润烧伤膏(MEBT／MEBO)对大鼠深Ⅱ度烧伤创面的细胞、毛细血管形态结构的变化,探讨其改善深Ⅱ度烧伤创面进行性加深的作用机制。方法:SD大鼠20只,背部两侧造成40个对称性圆环形深Ⅱ度烧伤创面,每个创面中央留有一个同心圆岛状区(淤滞区),随机自身对照,治疗组侧使用MEBT／MEBO进行治疗,每6小时换药一次,对照组侧不用任何措施。动态观察烧伤大鼠于伤后2h、6h、8h、12h、24h、72h共6个时相点的创面的病理切片观察皮肤组织形态结构变化和淤滞区切片进行组织病理学评分。结果:①创面细胞形态学改变(病理检查):伤后8h毛细血管扩张、细胞水肿,炎性浸润最明显;治疗组中央淤滞区无进行性坏死,伤后24h后毛细血管扩张、细胞水肿、炎性浸润减轻;对照组2个创面呈进行性坏死(占10％),中央淤滞区细胞水肿、炎性浸润明显,毛细血管血栓形成,伤后72h水肿仍明显,真皮坏死加重;②淤滞区组织病理学评分:治疗组与对照组相比,治疗侧淤滞区的表皮结构相对完整、胶原纤维束相对正常,粒细胞浸润小于5个／400倍视野。结论:MEBT／MEBO能防止大鼠深Ⅱ度烧伤创面进行性加深,促进烧伤后的创面愈合,其作用机制为MEBT／MEBO能使创面局部毛细血管扩张、细胞水肿、炎性浸润减轻,防止微血栓生成,有效改善创面局部的微环境,挽救间生态组织。