Effect of the combination of laser excision and interstitial hyperthermia in palliative therapy of head and neck tumours in the advanced stage of the disease.

abstract：BACKGROUND AND OBJECTIVES:A prospective, double-blind, randomized, and controlled trial was conducted in patients with knee osteoarthritis (OA) to evaluate the efficacy of infrared low-power Gallium-Arsenide (Ga-As) laser therapy (LPLT) and compared two different laser therapy regimes. STUDY DESIGN/MATERIALS AND METHO...

journal_title：Lasers in surgery and medicine

authors： Gur A,Cosut A,Sarac AJ,Cevik R,Nas K,Uyar A

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Low-intensity laser irradiation (LILI) has been used to modulate a variety of biological processes, including diabetic wound healing. The mechanism of action is thought to exist primarily with the mitochondria. This study aimed to determine the effect of irradiation on normal, diabetic, and isc...

journal_title：Lasers in surgery and medicine

authors： Houreld NN,Masha RT,Abrahamse H

更新日期：2012-07-01 00:00:00

abstract：:The advantages of the laser have been extolled in the literature but, in contrast, there is a paucity of information on the hazards involved in its surgical use. Recognition and prevention of risks is a mandatory requirement. The experience by encounter is described with counsel as to the prerequisite of taking precau...

journal_title：Lasers in surgery and medicine

authors： Lobraico RV

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:As a potential therapy for malignant glioma, we tested the phthalocyanine photosensitizer Pc 4 for: (1) rapid clearance from the vasculature, (2) specificity for glioma, and (3) tumoricidal photosensitizing capability. STUDY DESIGN/MATERIALS AND METHODS:Parenchymal injection of U87 cells into...

journal_title：Lasers in surgery and medicine

authors： George JE 3rd,Ahmad Y,Varghai D,Li X,Berlin J,Jackowe D,Jungermann M,Wolfe MS,Lilge L,Totonchi A,Morris RL,Peterson A,Lust WD,Kenney ME,Hoppel CL,Sun J,Oleinick NL,Dean D

更新日期：2005-06-01 00:00:00

abstract：:This work presents measurements of time-resolved fluorescence microscopy of hematoporphyrin-derivative (HpD) in single cells of mice tissue (both tumor and normal cells), in HeLa Cells, and in solution. The measurements were performed using a pulsed-laser microfluorometer with high spatial and temporal resolution. In ...

journal_title：Lasers in surgery and medicine

authors： Docchio F,Ramponi R,Sacchi CA,Bottiroli G,Freitas I

更新日期：1982-01-01 00:00:00

abstract：:The feasibility of using a pulsed dye laser in angioplasty for detection and disintegration of calcified plaques was studied in vitro. A flashlamp-pumped dye laser (495 nm, 2 microseconds) was used as the exciting source for laser-induced-fluorescence (LIF) signals. Spectral data in the 520 nm to 800 nm region of norm...

journal_title：Lasers in surgery and medicine

authors： Scheu M,Kagel H,Zwaan M,Lebeau A,Engelhardt R

更新日期：1991-01-01 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：BACKGROUND AND OBJECTIVE:The heat balance equation is central to modeling laser vaporization of tissue. Because about 70% of tissue is water, energy loss due to water vaporization becomes an important consideration in modeling. In this study, the rate and pattern of water vaporization from various animal tissues studie...

journal_title：Lasers in surgery and medicine

authors： Ramachandran T,Sreenivasan K,Sivakumar R

更新日期：1996-01-01 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：:Hematoporphyrin derivative (HpD) is a photoactive, oncophilic substance that produces cutaneous photosensitivity as its only significant side effect. Twenty-three patients who received systemic HpD and the usual light-avoidance precautions were studied prospectively to determine the incidence and severity of cutaneous...

journal_title：Lasers in surgery and medicine

authors： Wooten RS,Smith KC,Ahlquist DA,Muller SA,Balm RK

更新日期：1988-01-01 00:00:00

abstract：:The CO2 laser has provided the otolaryngologist/head and neck surgeon with a valuable addition in the diagnosis and treatment of malignant disease of the oral cavity. It is also helpful in the treatment of the premalignant clinical leukoplakias of the oral cavity. Carcinoma in situ has been diagnosed and treated succe...

journal_title：Lasers in surgery and medicine

authors： Duncavage JA,Ossoff RH

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVES:The aim of this study was to examine the influence of implant bed preparation, using either Er:YAG laser ablation, piezoelectric surgery or drill osteotomy, on osseointegration of titanium dental implants after 4, 6, and 8 weeks. MATERIAL AND METHODS:A total of 108 implants (Camlog) were plac...

journal_title：Lasers in surgery and medicine

authors： Stübinger S,Biermeier K,Bächi B,Ferguson SJ,Sader R,von Rechenberg B

更新日期：2010-09-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The aim of this study was to evaluate the efficacy and safety of the intense pulsed light source (IPL) and the Nd:YAG laser in the treatment of facial rhytids. Both systems can be used in a non-ablative manner and cause a dermal wound. This is thought to stimulate the production of new collagen...

journal_title：Lasers in surgery and medicine

authors： Goldberg DJ,Samady JA

更新日期：2001-01-01 00:00:00

abstract：:Photodynamic therapy (PDT), or photoradiation therapy (PRT), utilizing hematoporphyrin derivative (HPD) as photosensitizer and an argon-dye laser system as the light source, was used alone and in combination with localized microwave hyperthermia (2450 MHz) to treat axillary tumors of the SMT-F mammary carcinoma in mic...

journal_title：Lasers in surgery and medicine

authors： Waldow SM,Henderson BW,Dougherty TJ

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Photodynamic therapy (PDT) is a minimally invasive therapeutic modality for the treatment of neoplastic and non-neoplastic diseases. The photochemical interaction of light, photosensitizer (PS) and molecular oxygen produces singlet oxygen which induces cell death. The effectiveness of zinc sulf...

journal_title：Lasers in surgery and medicine

authors： Manoto SL,Houreld NN,Abrahamse H

更新日期：2013-03-01 00:00:00

abstract：:Thermal cameras are used in research laboratories to measure tissue temperature during laser irradiation. This study was an evaluation of the accuracy of a 3-5 microns thermal camera and two 8-12 microns cameras in detecting the maximum temperatures of small targets. The size of the targets was within the range of las...

journal_title：Lasers in surgery and medicine

authors： Torres JH,Springer TA,Welch AJ,Pearce JA

更新日期：1990-01-01 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:Sutures are currently the gold standard for wound closure but they are still unable to seal tissue and may induce scarring or inflammation. Biocompatible glues, based on polysaccharides such as chitosan, are a possible alternative to conventional wound closure. In this study, the adhesion of l...

journal_title：Lasers in surgery and medicine

authors： Lauto A,Stoodley M,Marcel H,Avolio A,Sarris M,McKenzie G,Sampson DD,Foster LJ

更新日期：2007-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Laser-assisted treatment of tattoos is well recognized to produce opaque epidermal whitening that prevents multiple sequential passes during a single treatment session. The amount of epidermal whitening produced in association with the procedure can be minimized by topical application of perflu...

journal_title：Lasers in surgery and medicine

authors： Biesman BS,Costner C

更新日期：2017-04-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:Objectively measure and compare postoperative collagen thermal damage and subsequent new collagen synthesis after cutaneous laser resurfacing using two carbon dioxide laser systems. STUDY DESIGN/MATERIALS AND METHODS:We created 240 resurfacing wounds on eight piglets with scanned and short-pul...

journal_title：Lasers in surgery and medicine

authors： Kuo T,Speyer MT,Ries WR,Reinisch L

更新日期：1998-01-01 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：:The purpose of this review is to call attention in the use of chlorophyll-a and bacteriochlorophyll-a to develop more than 600 photosensitizers (lambda (max) 660 nm-800 nm) during the last 15 years (1990-2005) at the Photodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo. This article mainly includes the ...

journal_title：Lasers in surgery and medicine

authors： Pandey RK,Goswami LN,Chen Y,Gryshuk A,Missert JR,Oseroff A,Dougherty TJ

更新日期：2006-06-01 00:00:00

abstract：:This study characterizes the special properties of hematoporphyrin derivative (HpD) (Photofrin I) and Photofrin II with respect to the absorption and fluorescence spectra of the subfractions of the compounds in both solution and cells. In addition, data are presented demonstrating variation in the spectral amplitudes ...

journal_title：Lasers in surgery and medicine

authors： Sun CH,Duzman E,Mellott J,Liaw LH,Berns MW

更新日期：1987-01-01 00:00:00

abstract：:The pulsed dye laser (wavelength 504 nm, pulse duration 1 microsecond) is widely used for fragmenting urinary and biliary calculi. In this study, the performance of this laser was compared with pulsed dye lasers producing pulse durations of 8 and 20 microseconds. Fragmentation thresholds and fragmentation rates were m...

journal_title：Lasers in surgery and medicine

authors： Bhatta KM,Nishioka NS

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND AND OBJECTIVE:The goal of this study was to use an inexpensive macroscopic imaging system to monitor tumor progression in mouse models in real-time with minimal intervention. STUDY DESIGN/MATERIALS AND METHODS:Illumination is provided via a xenon arc lamp and a fiber optic probe which delivers white light o...

journal_title：Lasers in surgery and medicine

authors： Carlson AL,Hoffmeyer MR,Wall KM,Baugher PJ,Richards-Kortum R,Dharmawardhane SF

更新日期：2006-12-01 00:00:00

abstract：BACKGROUND:We sought to investigate risk factors for recurrence of vaginal intraepithelial neoplasia (VAIN) in the vaginal vault after laser vaporization. MATERIALS AND METHODS:Among 162 patients treated with laser vaporization in the vaginal vault after hysterectomy between March 1998 and August 2007, the clinical da...

journal_title：Lasers in surgery and medicine

authors： Kim HS,Park NH,Park IA,Park JH,Chung HH,Kim JW,Song YS,Kang SB

更新日期：2009-03-01 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：UNLABELLED:BACKGROUND AND OBJECTIVE To examine the biophysical effects of photothermal heating on herniated intervertebral discs during laser decompression surgery. STUDY DESIGN/MATERIALS AND METHODS:Ex vivo bovine nucleus pulposus specimens were irradiated with a Nd: YAG laser (lambda = 1.32 microm, 100 seconds expos...

journal_title：Lasers in surgery and medicine

authors： Choi JY,Tanenbaum BS,Milner TE,Dao XV,Nelson JS,Sobol EN,Wong BJ

更新日期：2001-01-01 00:00:00

abstract：:We examined the biostimulating effects of helium-neon laser radiation (HeNe; 632.8 nm), pulsed infrared laser radiation (IR; 904 nm), and the two combined on skin wound healing in New Zealand white rabbits. Seventy-two rabbits received either 1) no exposure, 2) 1.65 J/cm2 HeNe, 3) 8.25 J/cm2 pulsed IR, or 4) both HeNe...

journal_title：Lasers in surgery and medicine

authors： Braverman B,McCarthy RJ,Ivankovich AD,Forde DE,Overfield M,Bapna MS

更新日期：1989-01-01 00:00:00

abstract：:Ablative lasers (CO2 and Er:YAG) provide the greatest improvement in photoaging, but significant adverse effects limit their use. Nonablative lasers have reduced adverse effects, but limited efficacy. Fractional photothermolysis (FP) produces arrays of microscopic thermal wounds called microscopic treatment zones (MTZ...

journal_title：Lasers in surgery and medicine

authors： Geronemus RG

更新日期：2006-03-01 00:00:00