Successful treatment of venous malformation located on glans penis with dual-wavelength 595- and 1064-nm laser system

Abstract

The management of venous malformation (VM) located on genitalia is complex and challenging. Surgical excision and sclerotherapy are the first-lines therapeutic options, but in certain areas such as the genitalia can be too aggressive. We present a case of VM on the glans penis treated successfully with dual wavelenght 595 and 1064 nm laser system.     

Treatment of vascular lesions located in the lip and in the oral cavity with Nd:YAG laser

Vascular lesions such as hemangiomas can be found in the oral cavity. Some therapeutic modalities can be used in the treatment of these lesions and Nd:YAG 1064 nm long pulse laser shows good results with easy application, fewer complications and satisfactory results. This study describes the technique and outcome of a case of hemangioma located on the tongue treated with Nd:YAG laser.     

Importance of the vaporization margin during CO2 laser treatment of oral leukoplakia: A survival study

Objectives

The main purpose of this study was to assess the response of oral leukoplakia to CO₂ laser vaporization treatment, as well as determining possible factors that may affect recurrence of lesions.

Materials and methods

A retrospective study was conducted, in which the medical records of patients who had been clinically and histologically diagnosed with oral leukoplakia and treated with CO₂ laser between 1996 and 2019 at the Oral Medicine Teaching Unit of the Faculty of Dentistry of the University of Santiago de Compostela were reviewed.

Results

Fifty-eight patients were included: 36 female and 22 male subjects, with a mean age of 63.7 years old (SD ±13.1). The average follow-up time was 57.5 months (SD ±57.9). A relapse rate of 52.6% was determined. Of all the studied variables, the margin was the only one for which a statistically significant association with recurrence of lesions was demonstrated (p < 0.05).

Conclusion

The vaporization of lesions using CO₂ laser with a safety margin of at least 3 mm from the clinical limits of OL is a key factor in preventing recurrence.     

Er，Cr：YSGG激光对牙周炎患牙及健康牙根面的影响

目的：探讨应用RFPT5-14工作尖的Er, Cr: YSGG激光照射对牙周炎患牙及健康牙根面微观结构改变以及粗糙度的影响。方法：选取8颗因牙周炎拔除的患牙,用超声刮治器去除根面牙石,另选取8颗因正畸减数或阻生智齿拔除的健康牙,将每颗牙根面分为4个区域,对应为1~4组,分别进行如下4种处理：（1）不处理;（2）Gracey刮治器进行根面平整30 s;（3）低功率激光照射30 s;（4）高功率激光照射30 s。通过扫描电镜观察表面微观结构,通过三维光学轮廓仪测量表面粗糙度Ra值。结果：手工根面平整组的表面可见玷污层覆盖;激光照射组表面较清洁,可见消融样改变;高功率激光组可见局部有牙本质小管暴露。牙周炎患牙第1组的Ra值为（237.4±20.0） nm,第2~4组的Ra值分别为（135.7±11.9） nm（P=0.01）、（463.6±49.3） nm（P<0.001）和（486.0±59.0） nm（P<0.001）。健康牙第1组的Ra值为（191.4±44.5）nm,第2~4组的Ra值分别为（131.6±21.5） nm（P=0.482）、（463.7±34.6） nm（P<0.001）和（470.3±121.3） nm（P<0.001）。结论：应用RFPT5-14工作尖的Er, Cr: YSGG激光照射可造成牙周炎表面的病变牙骨质及健康牙表面的健康牙骨质微观结构的改变,可以有效减少根面玷污层,并可见有消融样改变。Er, Cr: YSGG激光照射可以增加根面粗糙度,还需进一步实验来评价激光照射后根面的生物相容性。     

经尿道钬激光前列腺剜除术与前列腺电切术近期疗效的对比分析

目的比较前列腺钬激光剜除术(holmium laser enucleation of the prostate,HoLEP)和前列腺电切术(transurethral resection of the prostate,TURP)治疗良性前列腺增生(benign prostatic hyplasia,BPH)的疗效及安全性。方法将2012年6月至2013年7月90例行腔内手术治疗的BPH患者随机分为2组,分别行前列腺钬激光剜除术(HoLEP)和经尿道前列腺电切术(TURP)。监测、记录2组患者围手术期和术后1、3、6个月复查指标,比较最大尿流率(maximum flow rate,Qmax)、国际前列腺症状评分(international prostate symptom score,IPSS)、生活质量评分(quality of life score,QOL)等变化并进行统计学分析,比较两种术式近期临床疗效。结果术前两组患者一般情况和国际前列腺症状评分、生活质量评分、最大尿流率、残余尿量测量以及前列腺重量比较差异无统计学意义(P0.05);HoLEP组较TURP组术中出血量、手术时间、低钠血症的发生率、膀胱冲洗时间、留管时间都较低(P0.01);术后1个月、3个月及6个月2组IPSS、QOL和Qmax均比术前有明显改善(P0.01);但2组间比较并无显著统计学意义(P0.05)。结论 HoLEP术与TURP术相比,近期手术效果相似,且手术安全性更好,可视为治疗BPH的较好新方法。