Methylene blue-mediated photodynamic therapy: a possible alternative treatment for oral lichen planus.

abstract：BACKGROUND AND OBJECTIVES:Laser light of various wavelengths is being used for surgical procedures in otolaryngology. Apart from well-known fiber guided laser systems such as Nd:YAG- and Ho:YAG-lasers, newly developed diode-laser systems of different wavelengths have recently become popular in surgery. In order to comp...

journal_title：Lasers in surgery and medicine

authors： Janda P,Sroka R,Mundweil B,Betz CS,Baumgartner R,Leunig A

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Low level laser irradiation (LLLI) is used to promote wound healing. Molecularly it is known to stimulate mitochondrial membrane potential (MMP), cytokine secretion, and cell proliferation. This study was designed to determine the influence of LLLI on the kinetics of MMP stimulation and decay,...

journal_title：Lasers in surgery and medicine

authors： Gavish L,Asher Y,Becker Y,Kleinman Y

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Cosmeceuticals, chemical peels and collagen injections are used to rejuvenate skin, but none of these methods is effective or permanent. Recently, laser resurfacing has been found to be effective, but the incidence of side effects is relatively high. Two years ago, the non-ablative wrinkle red...

journal_title：Lasers in surgery and medicine

authors： Omi T,Kawana S,Sato S,Honda M

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To evaluate the effect of Er:YAG and Nd:YAG laser on radicular dentine permeability when using distilled and deionized water and 1% NaClO as irrigating solutions. STUDY DESIGN/MATERIALS AND METHODS:Thirty human maxillary canines were divided randomly into six groups. The root canals were inst...

journal_title：Lasers in surgery and medicine

authors： Brugnera A Jr,Zanin F,Barbin EL,Spanó JC,Santana R,Pécora JD

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Endoscopic third ventriculostomy is used to treat hydrocephalus. Different laser wavelengths have been proposed for laser-assisted endoscopic third ventriculostomies over the last decades. The aim of this study was to evaluate Thulium laser endoscopic third ventriculostomy heat penetration in t...

journal_title：Lasers in surgery and medicine

authors： de Boorder T,Brouwers HB,Noordmans HJ,Woerdeman PA,Han KS,Verdaasdonk RM

更新日期：2017-12-07 00:00:00

abstract：:This is the first report on the use of endoscopic argon photoirradiation to treat patients with low-grade ureteral tumors involving the distal ureter. Using a rigid ureteropyeloscope, a 300 mu or 600 mu quartz fiber, and 5 watts (W) of power in a continuous-wave mode, the lesions were ablated without complication. Pat...

journal_title：Lasers in surgery and medicine

authors： Johnson DE

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Variable square pulse (VSP) Er:YAG laser should be quicker than older Er:YAG lasers. The objectives were: (1) comparison of VSP laser and mechanical handpiece efficacy for apicectomy and (2) determination of optimal pulse width/energy/frequency combination. STUDY DESIGN/MATERIALS AND METHODS:...

journal_title：Lasers in surgery and medicine

authors： Grgurević J,Grgurević L,Miletić I,Karlović Z,Krmek SJ,Anić I

更新日期：2005-06-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Interstitial photodynamic therapy (iPDT) of non-resectable recurrent glioblastoma using 5-aminolevulinic acid (ALA)-induced protoporphyrin IX (PpIX) has shown a promising outcome. It remained unclear, however, to what extent inter- and intra-tumoural differences of PpIX concentrations influence...

journal_title：Lasers in surgery and medicine

authors： Johansson A,Faber F,Kniebühler G,Stepp H,Sroka R,Egensperger R,Beyer W,Kreth FW

更新日期：2013-04-01 00:00:00

abstract：:Since the first use of lasers in ophthalmology in the early 1960s, applications for the medical laser have been found in many medical specialties. Despite their increasing usefulness, lasers have been reported to induce injuries. Few studies have tried to quantify the number of injuries caused by the clinical use of l...

journal_title：Lasers in surgery and medicine

authors： Rodriguez JG,Sattin RW

更新日期：1987-01-01 00:00:00

abstract：:The argon fluoride excimer laser is investigated as a cutting-ablating tool for bone surgery. Quantitative measurements are presented for various fluences of laser energy and number of pulses. Histological data are presented that demonstrate the minimal damage to the surrounding material from the laser interaction. Co...

journal_title：Lasers in surgery and medicine

authors： Lustmann J,Ulmansky M,Fuxbrunner A,Lewis A

更新日期：1991-01-01 00:00:00

abstract：OBJECTIVES:Intravascular photoacoustic (IVPA) imaging is being developed to image atherosclerotic plaques, a leading cause of morbidity and mortality in the United States. However, the safety of this imaging modality, which requires repeated irradiation with short laser pulses, has not yet been investigated. This study...

journal_title：Lasers in surgery and medicine

authors： Sowers T,VanderLaan D,Karpiouk A,Donnelly EM,Smith E,Emelianov S

更新日期：2018-10-10 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To investigate the effect of photodynamic therapy (PDT) on cell death in malignant tumor tissue, the frequency of terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL)-positive cells and the possible involvement of Fas and Fas ligand system were evaluated. STUDY DESIGN...

journal_title：Lasers in surgery and medicine

authors： Yokota T,Ikeda H,Inokuchi T,Sano K,Koji T

更新日期：2000-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The extent of thermal injury during laser prostatectomy is dependent on the light distribution in laser-irradiated tissue. As tissue is irradiated, the optical properties change as a function of temperature due to an alteration of molecular and cellular structure. The purpose of the present stu...

journal_title：Lasers in surgery and medicine

authors： Nau WH,Roselli RJ,Milam DF

更新日期：1999-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Holmium laser lithotripsy is the gold standard for intracorporeal fragmentation of urinary calculi. Usually, a visible beam is superimposed on the IR treatment laser as an aiming beam to guide the surgeon. In vitro tests showed that this aiming beam (532 nm, power <1 mW) excites strong fluores...

journal_title：Lasers in surgery and medicine

authors： Lange B,Jocham D,Brinkmann R,Cordes J

更新日期：2017-04-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The purpose of this investigation was to evaluate: 1. thermal events during laser irradiation @2.1 microns of the pulp; 2. whether these effects are adequately modeled using an empty pulp chamber/root canal. STUDY DESIGN/MATERIALS AND METHODS:In extracted human teeth, pulpal access was prepare...

journal_title：Lasers in surgery and medicine

authors： Chang JC,Wilder-Smith P

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Low-intensity laser irradiation is claimed to enhance wound healing. Healing after myocardial infarction results in ventricular enlargement and wall thinning. If laser treatment accelerated cardiac healing, we speculated that ventricular remodeling would be attenuated. STUDY DESIGN/MATERIALS A...

journal_title：Lasers in surgery and medicine

authors： Whittaker P,Patterson MJ

更新日期：2000-01-01 00:00:00

abstract：OBJECTIVES:Photodynamic therapy (PDT) is an effective cancer treatment that uses photosensitizers, light, and oxygen to destroy malignant cells. Porphyrins, and in particular the cationic derivatives, are the most investigated photosensitizers for PDT. In this context, it is important to study new methodologies to deve...

journal_title：Lasers in surgery and medicine

authors： Carneiro J,Gonçalves A,Zhou Z,Griffin KE,Kaufman NEM,Vicente MDGH

更新日期：2018-07-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:In previous investigations, small variations in the energy densities of low level light therapy (LLLT) were found to produce significant differences in the proliferation of resting T-lymphocytes in vitro. Pulsing these cells with mitogen in addition to laser therapy produced inhibitory effects ...

journal_title：Lasers in surgery and medicine

authors： Agaiby AD,Ghali LR,Wilson R,Dyson M

更新日期：2000-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Q-switched lasers had been used in the treatment of lentigo maligna but their role remains controversial. While previous studies have addressed the change in adhesion molecule expression after sub-lethal laser damage, no study has addressed the impact of sub-lethal laser damage at a molecular ...

journal_title：Lasers in surgery and medicine

authors： Chan HH,Xiang L,Leung JC,Tsang KW,Lai KN

更新日期：2003-01-01 00:00:00

abstract：:A technique for partial nephrectomy using a combination of an Ultrasonic Surgical Aspirator and a neodymium:YAG laser provided better hemostasis and decreased total operative time compared to standard methods. Delayed hemorrhage was not seen, and thermal damage to the remaining renal parenchyma was minimal. ...

journal_title：Lasers in surgery and medicine

authors： Landau ST,Wood TW,Melzer RB,Lee RG,Smith JA Jr

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The purpose of this study was to compare the effect of Low-Level Laser Therapy (LLLT) with sham and whirlpool treatment on the contracted knee joint in rat. STUDY DESIGN/MATERIALS AND METHODS:Forty-eight Wistar rats were operated on to immobilize knee joint, and 1 week after operation they wer...

journal_title：Lasers in surgery and medicine

authors： Usuba M,Akai M,Shirasaki Y

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:In order to improve selectivity of photodynamic therapy (PDT) to choroidal neovascularization (CNV) associated with age-related macular degeneration, a laser scanning technique was applied to perform focal laser irradiation to the retina, and the occlusion effects of a new device to the chorio...

journal_title：Lasers in surgery and medicine

authors： Obana A,Gohto Y

更新日期：2002-01-01 00:00:00

abstract：:Photodynamic therapy (PDT) is a promising approach to the treatment of cancer. Preferential retention of the photosensitizer by malignant tissue has been considered a hallmark of this treatment modality. However, photosensitivity can be observed in normal, non-neoplastic tissues, and the present study investigated the...

journal_title：Lasers in surgery and medicine

authors： Chazen MD,Baggs RB,Gibson SL,Albert MS,Hilf R

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Herein an overview is provided of the causes, consequences, and significance of photodynamic therapy (PDT)-mediated effects on tumor oxygenation and blood flow during illumination. STUDY DESIGN/MATERIALS AND METHODS:Techniques particularly valuable to this research have included tissue oxygen ...

journal_title：Lasers in surgery and medicine

authors： Busch TM

更新日期：2006-06-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Local recurrence after surgical resection for breast cancer is a significant problem and is often not controlled by radiation or chemotherapy treatments. Local recurrence is thought to be, at least in part, due to residual disease, and/or due to the contamination of the surgical field during re...

journal_title：Lasers in surgery and medicine

authors： Maker VK,Elseth KM,Radosevich JA

更新日期：1995-01-01 00:00:00

abstract：:The distribution of light in laser-irradiated biological medium is computed using four different procedures. Values computed with Beer's law of attenuation, Kubelka-Munk theory, the diffusion approximation, and a seven-flux model are compared. The proper conditions for using each model are discussed. ...

journal_title：Lasers in surgery and medicine

authors： Welch AJ,Yoon G,van Gemert MJ

更新日期：1987-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Varieties of laser and light sources have been tried for treatment of alopecia areata (AA) and some success has been reported. To assess the effectiveness of 1,540  nm fractional erbium-glass laser in treatment of AA. STUDY DESIGN/MATERIALS AND METHODS:The patches of AA were divided into two ...

journal_title：Lasers in surgery and medicine

authors： Al-Dhalimi MA,Al-Janabi MH,Abd Al Hussein RA

更新日期：2019-12-01 00:00:00

abstract：BACKGROUND:Photodynamic therapy (PDT) offers the potential for enhanced treatment of nonmelanoma skin cancer (NMSC) with minimal scarring. Yet, PDT has not achieved consistent long term effectiveness to gain widespread clinical acceptance for treatment of skin cancer. Therapeutic response varies between practitioners, ...

journal_title：Lasers in surgery and medicine

authors： Saager RB,Cuccia DJ,Saggese S,Kelly KM,Durkin AJ

更新日期：2013-04-01 00:00:00

abstract：:A laser endoscope was devised using optic fibers in order to provide a means of visualization and removal of atheromatous plaques from arteries in cadavers and experimental animals. Atheromatous plaques were satisfactorily lased off in a few seconds, although contraction of lased vessels was observed. A self-focusing ...

journal_title：Lasers in surgery and medicine

authors： Ward H

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:To produce controlled, spatially confined thermal effects in dermis. STUDY DESIGNS/MATERIALS AND METHODS:A 1 W, 1,500 nm fiber-coupled diode laser was focused with a high numerical aperture (NA) objective to achieve a tight optical focus within the upper dermis of skin held in contact with a ...

journal_title：Lasers in surgery and medicine

authors： Khan MH,Sink RK,Manstein D,Eimerl D,Anderson RR

更新日期：2005-04-01 00:00:00