激光冷冻联合足叶草酯治疗肛周尖锐湿疣100例

我科于2006年5月至2008年5月采用激光冷冻联合足叶草酯治疗100例肛周尖锐湿疣患者,效果比较满意,现报道如下: 1临床资料符合尖锐湿疣的诊断标准的肛周尖锐湿疣100例,年龄12～65岁,病程1～16个月不等,均不伴有器质性。

长脉冲1064nm Nd:YAG激光与二氧化碳激光及液氮冷冻治疗化脓性肉芽肿的疗效比较

目的评价长脉冲1064 nm Nd:YAG激光、二氧化碳激光及液氮冷冻治疗化脓性肉芽肿的疗效及安全性。方法将137例化脓性肉芽肿患者随机分为3组,分别采用长脉冲1064 nm Nd:YAG激光(A组)、二氧化碳激光(B组)及液氮冷冻(C组)治疗,评估治疗后6个月的疗效及安全性。结果长脉冲1064 nm Nd:YAG激光、二氧化碳激光及液氮冷冻治疗化脓性肉芽肿的1次治愈率分别为86.9%、78.3%和57.8%,总治愈率分别为100%、86.9%和97.7%,不良反应发生率分别为4.3%、15.2%和13.3%。3种方法治疗化脓性肉芽肿安全有效,其中1次治愈率及总治愈率以Nd:YAG激光组最好,不良反应差异无统计学意义。结论长脉冲1064 nm Nd:YAG激光治疗化脓性肉芽肿安全有效。

粘液腺的组织细胞学知识与粘液腺囊肿治疗方法对比

人体的外分泌腺粘液腺在受到外力挤压的情况下会产生囊肿,这种疾病被称为粘液腺囊肿,是口腔科疾病之一。本文在探讨有关腺和腺上皮的组织细胞构成与分类的基础上,分析了粘液腺囊肿的成因及诊断方法,并进一步比较了各种治疗方法的利弊。

An experimental investigation into the icing and melting process of a water droplet impinging onto a superhydrophobic surface

The freezing and melting process of a small water droplet on a superhydrophobic cold surface was investigated using the Laser Induced Fluorescence(LIF)technique.The superhydrophobic surface was prepared using a sol-gel method on a red copper test plate.From the obtained fluorescence images,the phase transition characteristics during the freezing and melting process of a water droplet were clearly observed.It was found that,at the beginning of the droplet freezing process,liquid water turned into ice at a very fast rate.Such phase transition process decreased gradually with time and the volume of frozen ice approached a constant value at the end of the icing process.In addition,the freezing time was found to reduce with the decrease of the test plate temperature.Besides,when the test plate temperature is relatively high,the effect of droplet volume on the freezing time is very significant.Over all,we provide some tentative insights into the microphysical process related to the icing and melting process of water droplets.