Pixel Er∶YAG激光治疗面部浅表瘢痕的疗效观察

目的观察pixel Er∶YAG激光治疗面部浅表性瘢痕的临床效果。方法面部浅表性瘢痕患者40例,应用7×7 pixel激光头,长脉宽,频率2 Hz,脉冲能量1000～1400 mJ,光斑对准治疗区,发射3～5个脉冲。间隔3～4周治疗1次,共治疗3～6次。治疗后90 d根据瘢痕平整程度和外观颜色评估疗效。结果显效30例,显效率75%;有效10例,有效率25%。治疗后7～12 d创面完全愈合,无色素沉着等并发症发生。结论 pixel Er∶YAG激光是治疗浅表性瘢痕的有效方法。     

剥脱性CO_2点阵激光联合Er∶YAG激光治疗面部凹陷性痤疮瘢痕的疗效

目的探讨剥脱性CO_2点阵激光联合Er∶YAG激光治疗面部凹陷性痤疮瘢痕的临床疗效和安全性。方法选择2018年1月至2020年1月,面部凹陷性痤疮瘢痕患者30例,采用自身半脸随机对照法,分为联合组和对照组。联合组患者一侧面部给予剥脱性CO_2点阵激光联合Er∶YAG激光治疗,剥脱性CO_2点阵激光治疗选择Deep模式,能量50～60 m J,覆盖率5%,频率0.25～1.0 Hz;Er∶YAG激光治疗,脉冲宽度400 ms,能量30～50 J/cm~2,频率1.4 Hz。对照组,在患者另一侧面部单独给予Er∶YAG激光治疗,脉冲宽度400 ms,能量30～50 J/cm~2,频率1.4 Hz。两组均每6周治疗1次,共4次。第4次治疗后6周采用痤疮瘢痕权重评分法(échelle d’évaluation clinique des cicatrices d’acné,ECCA)对两组患者的痤疮凹陷性瘢痕性状及数量进行权重评分;根据患者治疗前后大体照片进行评分;采用皮肤超声测量治疗前后瘢痕深度的变化;同时记录患者疼痛程度、红斑持续时间、掉痂时间等不良反应。结果两组患者治疗后ECCA评分、大体照片、痘坑深度较治疗前均有所改善,差异具有统计学意义(P0.05);其中联合组改善程度优于单纯Er∶YAG激光组(P0.05)。两组均无严重不良反应。结论单独应用Er∶YAG激光或剥脱性CO_2点阵激光联合Er∶YAG激光均可有效治疗痤疮凹陷性瘢痕,且安全性高,其中联合组疗效较好。     

点阵式Er∶YAG激光治疗痤疮的临床疗效观察

目的探讨点阵式Er∶YAG激光治疗痤疮的疗效及安全性。方法中重度痤疮患者24例,以波长2 940 nm,光斑面积11 mm×11 mm,7×7点阵,脉宽2 ms,频率2 Hz,脉冲能量1 000～1 400 mJ的Er∶YAG激光照射病变区,发射6～9个脉冲。间隔4周治疗1次,共治疗4次。结果 4次治疗后有效率为95.9%,治疗后半年有效率为87.5%;患者满意率达83.3%;皮脂分泌平均减少52.6%。24例患者均无不良反应。结论点阵式Er∶YAG激光治疗痤疮安全有效。     

点阵式超脉冲CO_2激光和点阵式Er:YAG激光治疗面部毛孔粗大的疗效比较

目的比较点阵式超脉冲CO_2激光与点阵式Er:YAG激光治疗面部毛孔粗大的疗效及安全性。方法面部毛孔粗大患者60例,随机分为两组,每组30例,分别采用点阵式CO_2激光与点阵式Er:YAG激光治疗。疗程结束后随访3个月,应用面部毛孔标准照片评价法进行临床疗效评估并比较两组疗效。结果点阵CO_2激光组治疗前与治疗后3个月患者面部毛孔标准照片评分分别为(4.97±0.77)和(2.00±0.95),点阵Er:YAG激光组分别为(5.03±0.77)和(2.40±0.82),组内比较治疗前后差异具有统计学意义(P0.05)。组间比较点阵CO_2激光组疗效优于点阵Er:YAG激光组,疗效差异具有统计学意义(P0.05)。点阵CO_2激光组与点阵Er:YAG激光组的满意率分别为83.3%和90.0%,差异无显著意义(P0.05)。两组患者治疗后疼痛轻微,可出现短暂的红斑、肿胀及脱痂期,无一例发生皮肤永久性色素沉着、色素减退及瘢痕形成。结论点阵式CO_2激光与点阵式Er:YAG激光均能有效改善面部毛孔粗大,点阵式CO_2激光疗效优于点阵式Er:YAG激光,但短暂性色素沉着发生几率略高,恢复时间更长。两者都是较理想的治疗方法,可根据患者具体情况进行选择。     

湿润烧伤膏在面部微小凹陷瘢痕激光磨削修复中的应用

目的:观察湿润烧伤膏(MEBO)外用修复激光磨削面部瘢痕创面的疗效.方法:38例患者,行激光磨削治疗后创面外用湿润烧伤膏1周～2周.结果:全部病例随访3个月～6个月,一次性治疗痊愈14例,显效6例,有效4例;二次治疗痊愈8例,显效4例,有效2例,总有效率100%,无一例出现瘢痕增生、色素加深及感染.结论:湿润烧伤膏治疗面部瘢痕激光磨削创面使用方便,促进愈合,无明显副作用.     

比较强脉冲光与Q开关Nd∶YAG激光治疗雀斑的临床疗效

<正>目的:比较强脉冲光与Q开关Nd∶YAG激光治疗雀斑的疗效和安全性。方法:雀斑患者72例,采用自身对照研究。一侧面部应用强脉冲光(560nm)治疗,4周一次,4次为一个疗程。对侧面部应用Q开关Nd∶YAG激光(532nm)治疗,8周1次,2次为一个疗程。疗程结束后每月随访1次,6个月后评估疗效和安全性。疗效判定标准:显效:病变清除75%～100%,有效:病变清除25%～75%,无效:病变清除25     

强脉冲光与点阵Er∶YAG激光治疗面部毛孔粗大的临床疗效比较

目的比较强脉冲光自动脉冲技术(Automatic-Pulse Technology,APT)与点阵式Er∶YAG激光治疗面部毛孔粗大的疗效及安全性。方法面部毛孔粗大患者72例,随机分为两组,APT组和激光组,每组患者36例。APT组,强脉冲光自动脉冲技术治疗;激光组,采用点阵式Er∶YAG激光。术后随访3个月,应用面部毛孔标准照片评价法进行临床疗效评估,并比较两组患者的疗效。结果治疗后3个月,APT组和激光组患者面部毛孔标准照片评分为(2.61±0.99)和(2.00±1.2),两组比较差异具有显著意义(P0.05)。APT组与点阵Er∶YAG激光组的满意度分别为77.8%和91.7%,点阵Er∶YAG激光组疗效优于APT组,组间疗效差异有显著意义(P0.05)。结论 APT与点阵式Er∶YAG激光均能有效改善面部毛孔粗大,APT虽疗效不及点阵式Er∶YAG激光,但治疗相对更安全,恢复更快。两者都是较理想的治疗方法,可根据患者具体情况进行选择。     

倍频Nd：YAG激光治疗增生性瘢痕与瘢痕疙瘩的疗效观察

目的 观察可调长脉宽倍频Nd:YAG 532 nm(VPW532)激光治疗增牛性瘢痕与瘢痕疙瘩的疗效及安全性.方法 使用VPW532激光分别治疗增生性瘢痕22例、瘢痕疙瘩10例,能量密度12～20J/cm2,光斑直径4～5 mm,脉宽10～30ms,频率1～3 Hz,治疗2～5次,治疗后3个月判断疗效和不良反应.结果 22例增生性搬痕治愈9例,显效7例,有效6例;10例瘢痕疙瘩治愈3例,显效3例,有效4例.结论 VPW532激光治疗增生性瘢痕和瘢痕疙瘩均有良好疗效,不良反应轻微.     

应用局灶性光热作用技术治疗痤疮瘢痕

 目的:观察局灶性光热作用技术治疗面部痊疮萎缩性瘢痕的安全性及疗效.方法:采用2940nmEr:YAG像素激光治疗54例轻中重度痤疮瘢患者,其中光斑7mm×7mm或者9mm×9mm,长脉宽1200～1400mj,照射4～6遍.每4周治疗1次,共3～6次.治疗后3个月评估疗效和安全性.治疗前后使用Dreno的ECCA权重评分表对瘢痕部位进行评分统计.结果:治疗后凹陷性痤疮瘢痕改善程度平均为52.12%.治疗前后ECCA分值有统计学差异(P＜0.01).治疗后未出现色素沉着、色素减退及瘢痕形成等不良反应.结论:局灶性光热作用技术治疗痤疮萎缩性瘢痕安全有效.     

595nm脉冲染料激光联合点阵式Er：YAG激光治疗酒渣鼻的临床疗效

目的探讨595nm脉冲染料激光联合点阵式Er：YAG激光治疗酒渣鼻的疗效及安全性。方法酒渣鼻患者27例，以595nm脉冲染料激光照射病变区，2周后再以点阵式Er：YAG激光治疗病变区。两次治疗为一个疗程，共治疗4个疗程，分别于末次治疗后2周和6个月观察疗效。结果末次治疗后2周显效率为92．6％，治疗后6个月显效率为88．9％；患者满意率达85．2％。结论595nm脉冲染料激光联合点阵式Er：YAG激光治疗酒渣鼻安全有效。     

Optimization of the system of medical service of students of Cadet Schools of the Ministry of Defense of the Russian Federation

One of the factors of the successful military career guidance Cadet schools students is preserving and promoting their health. Medical support of children and adolescents aged 10-17 years should include the full range of medical and preventive measures defined for this group. The state of providing outpatient care for pupils at the Cadet School in St. Petersburg was studied. These results show that full medical care in accordance with the standards can be based only on children's health clinics. It is important that the organization of medical support pupils cadet schools should be cooperate with civilian health care.     

带状疱疹83例误诊原因分析

带状疱疹是由水痘—带状疱疾病毒引起的皮肤科常见疾病。其主要的病理损害,一是受累神经的严重炎症性浸润,继而导致受侵犯神经节内神经细胞变性、坏死;二是皮肤的水泡。迅速抑制神经节和相应的感觉神经纤维的充血、水肿和坏死,防止粘连形成,达到迅速镇痛、改善皮损,缩短病程及防止后遗症的发生是治疗的关键。因而,尽早明确诊断,     

Analysis of the results of the international comparison of activity measurements of a solution of Fe

The results of an international comparison of activity measurements of a solution of ⁵⁵Fe organized by the BIPM in 2005 are reported and analysed. This exercise, which follows the procedures of the CIPM mutual recognition arrangement to update older comparisons, is a renewal of the comparison organized by the BIPM that took place in 1978. A EUROMET comparison was organized in 1996 specifically to compare activity measurements of a ⁵⁵Fe solution by means of liquid-scintillation techniques. Results of these three comparisons are presented and discussed in this paper.

The radionuclide solution was provided by the NPL, which also distributed the samples to the participants. The activity of the ampoules was measured by 16 laboratories using 12 methods producing 25 results. Some general considerations on uncertainty assessments pertaining to the different techniques used are drawn. The outcome of four different estimators is compared from which the presence of at least one outlier can be confirmed. Further measurements should be made to try to reduce the discrepancy between the results. To date the outcome of the present comparison does not show an improvement to that of the 1996 comparison.     

Estimation of accumulated dose of radiation by method of ESR-spectrometry of dental enamel of mammals

ESR-spectrometry was used to investigate radiation-induced paramagnetic centers in enamel of mammals: carnivores (polar bear and fox), ungulates (reindeer, European bison, moose), and man. Values at half the microwave power saturation of the radiation signal, P_1/2, evaluated at room temperature, was found to range from 16 to 26 mW for animals and man. A new approach to discrimination of the radiation induced signal from the total ESR spectrum of reindeer enamel is proposed. ‘Dose-response’ dependencies of enamel of different species mammals were measured within the dose range from 0.48 up to 10.08 Gy. Estimations of ‘radiosensitivity’ enamel of carnivores and ungulates showed good agreement with radiosensitivity enamel of man by ESR method.     

Evaluation of the results of various technics of non-surgical therapy of varicocele

A new method of non-surgical treatment of varicocele syndrome is described: it consists in sclerotherapy of spermatic vein by trans-femoral percutaneous catheterization with balloon-catheters. In 8 cases venous thrombosis has been induced by direct electric clotting. The techniques and a 6 months follow-up are discussed. It is pointed out that this procedure should be considered as the method of choice for tubular lesions and sub-fertility prophylaxis in young people and in childhood.     

延迟性脾破裂误漏诊原因分析

目的探讨延迟性脾破裂误漏诊原因和预防措施.方法回顾性分析总结12例延迟性脾破裂中的诊断和误漏诊的经验与教训.结果本组延迟性脾破裂的误漏诊5例(41.66%).对多发伤与脾破裂并存可能认识不足,外伤史轻微或伤员隐瞒外伤史,缺乏腹痛-缓解-突然再腹痛的典型病史,缺乏“对冲性脾破裂”力学分析和整体化诊断思路等为其误漏诊的主要原因.结论详细的外伤史和全面系统检查,重视腹以外多发伤掩盖腹内脏器伤及延迟性脾破裂可能.确立外伤-腹内脏器伤-脾破裂整体化诊断思路.不间断地辅以B超检查脾形态学变化和腹内有无积液,腹腔穿刺确定有无血腹、X线胸腹部检查观察左侧胸肋角和膈肌运动情况、必要时CT检查以尽早发现脾包膜下血肿,降低延迟性脾破裂误漏诊率.