Effect of the CO2 milliwatt laser on tensile strength of microsutures.

Abstract:

BACKGROUND AND OBJECTIVE:Laser-assisted tissue repair is often accompanied by a high dehiscence rate, which may be due to alterations in suture material after laser exposure. The goal of this study was to investigate the effect of CO2 laser irradiation on the tensile strength of microsurgical suture material. STUDY DESIGN/MATERIALS AND METHODS:10-0 nylon and 25 microns stainless steel threads were exposed to 12 combinations of power densities (62, 124, and 186 W/cm2) and pulse durations (0.5, 1, 2, 3 s) and tested on a tensometer for their tensile strength. RESULTS:At power densities of 186 W/cm2, the 10-0 nylon thread disrupted during laser irradiation, regardless of pulse duration. This was also the case at power densities of 124 C/cm2 for 2 s and 3 s pulse duration. At 124 W/cm2 for 0.5 and 1 s, the tensile strength decreased with 70% relative to the control. At 62 W/cm2, the tensile strength gradually decreased from 100% (0.5 s pulse duration) to 50% (3 s pulse duration) relative to control. Stainless steel thread resisted all laser irradiations. CONCLUSIONS:The 10-0 nylon thread is significantly compromised by irradiation with the CO2 milliwatt laser and therefore meticulous care should be taken not be irradiate the sutures during laser tissue welding.

journal_name

Lasers Surg Med

authors

Menovsky T,Beek JF,van Gemert MJ

doi

10.1002/(sici)1096-9101(1997)20:1<64::aid-lsm10>3.

subject

Has Abstract

pub_date

1997-01-01 00:00:00

pages

64-8

issue

1

eissn

0196-8092

issn

1096-9101

pii

10.1002/(SICI)1096-9101(1997)20:1<64::AID-LSM10>3.

journal_volume

20

pub_type

杂志文章
  • Studies in fiber guided excimer laser surgery for cutting and drilling bone and meniscus.

    abstract::Our experiments on transmitting high-power excimer laser pulses through optical fibers and our investigations on excimer laser ablation of hard tissue show the feasibility of using the excimer laser as an additional instrument in general and accident surgery involving minimal invasive surgery. By combining XeCl-excime...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900110612

    authors: Dressel M,Jahn R,Neu W,Jungbluth KH

    更新日期:1991-01-01 00:00:00

  • Photodynamic therapy using Verteporfin (benzoporphyrin derivative monoacid ring A, BPD-MA) and 630 nm laser light in canine esophagus.

    abstract:BACKGROUND AND OBJECTIVE:Verteporfin is a new photosensitizer with short-term skin photosensitivity. The objective of this preclinical study was to find the light dose that effectively ablates canine esophageal mucosa when delivered 30 minutes after Verteporfin injection. STUDY DESIGN/MATERIALS AND METHODS:Verteporfin...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.10014

    authors: Panjehpour M,DeNovo RC,Petersen MG,Overholt BF,Bower R,Rubinchik V,Kelly B

    更新日期:2002-01-01 00:00:00

  • Argon laser vascular fusion: venous and arterial bursting pressures.

    abstract::This study was designed to determine the optimal laser power (watts) for maximal strength of argon laser vascular fusions by measuring bursting pressures of repairs. Longitudinal incisions (n = 105) measuring either 2.5 or 5 mm in length were performed in canine femoral, carotid, and jugular veins and arteries and wer...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900090509

    authors: Vlasak JW,Kopchok GE,Fujitani RM,White RA

    更新日期:1989-01-01 00:00:00

  • Analysis of Impact of Humidity and Temperature on Excimer Laser Ablation of Polyethylene Terephthalate, Polymethylmethacrylate, and Porcine Corneal Tissue.

    abstract:BACKGROUND AND OBJECTIVES:To analyze the impact of humidity and temperature on excimer laser ablation of polyethylene terephthalate (PET), polymethylmethacrylate (PMMA) and porcine corneal tissue, and an ablation model to compensate for the temperature and humidity changes on ablation efficiency. STUDY DESIGN/MATERIAL...

    journal_title:Lasers in surgery and medicine

    pub_type:

    doi:10.1002/lsm.23190

    authors: Verma S,Kehrer T,Hesser J,Arba Mosquera S

    更新日期:2020-09-01 00:00:00

  • Photodynamic therapy: Promoting in vitro efficacy of photodynamic therapy by liposomal formulations of a photosensitizing agent.

    abstract:OBJECTIVE:A relatively low level of lysosomal photodamage has been shown capable of promoting the efficacy of photodamage simultaneously or subsequently directed to mitochondrial/ER sites. The procedure has hitherto involved the use of two photosensitizing agents that require irradiation at two different wavelengths an...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.22813

    authors: Rizvi I,Obaid G,Bano S,Hasan T,Kessel D

    更新日期:2018-07-01 00:00:00

  • Observations on the simultaneous use of CO2 and Nd:YAG lasers in neurosurgery.

    abstract::Seven cases of cerebral tumors (four deep-seated sovratentorial gliomas located in motor area, occipital region, parietal region and frontal region; one deep-seated cystic cerebellar spongioblastoma; one sphenoidal wing meningioma, and one spinal cord intradural tumor) were simultaneously irradiated in the same area w...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900020205

    authors: Fasano VA,Benech F,Ponzio RM

    更新日期:1982-01-01 00:00:00

  • Therapeutic ratio quantifies laser antisepsis: ablation of Porphyromonas gingivalis with dental lasers.

    abstract:BACKGROUND AND OBJECTIVES:It is established that both pulsed Nd:YAG (1,064 nm) and continuous diode (810 nm) dental lasers kill pathogenic bacteria (laser antisepsis), but a quantitative method for determining clinical dosimetry does not exist. The purpose of this study was to develop a method to quantify the efficacy ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20086

    authors: Harris DM,Yessik M

    更新日期:2004-01-01 00:00:00

  • Facial teleangectasias: our experience in treatment with IPL.

    abstract:BACKGROUND AND OBJECTIVES:Facial teleangectasias can be a relevant cosmetic problem, which the patient usually hides with a thick layer of makeup. This study will describe the response on these vascular lesions using the intense pulsed light (IPL) source. METHODS:Five hundred eighteen consecutive patients were treated...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20187

    authors: Clementoni MT,Gilardino P,Muti GF,Signorini M,Pistorale A,Morselli PG,Cavina C

    更新日期:2005-07-01 00:00:00

  • Treatment of port wine stains with photodynamic therapy, using pulsed dye laser as a light source, compared with pulsed dye laser alone: a pilot study.

    abstract:BACKGROUND AND OBJECTIVES:Laser-induced photo thermal damage has been combined with photodynamic therapy (PDT) using a systemic photosensitiser to treat vascular lesions. The efficacy of PDT using systemic 5-aminolaevulinic acid (5-ALA) as the photosensitiser and pulsed dye laser (PDL) as the light source in port wine ...

    journal_title:Lasers in surgery and medicine

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1002/lsm.20151

    authors: Evans AV,Robson A,Barlow RJ,Kurwa HA

    更新日期:2005-04-01 00:00:00

  • Laser threshold and cell damage mechanism for intravascular photoacoustic imaging.

    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

    pub_type: 杂志文章

    doi:10.1002/lsm.23026

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

    更新日期:2018-10-10 00:00:00

  • Effects of Low-Level Laser Irradiation in a Mouse Model of Allergic Rhinitis.

    abstract:BACKGROUND AND OBJECTIVES:To evaluate the antiallergic effect of low-level laser irradiation (LLLI) at 650 nm in a mouse model of allergic rhinitis (AR), and to examine the underlying mechanisms. STUDY DESIGN/MATERIALS AND METHODS:BALB/c mice were sensitized with ovalbumin (OVA) and alum and challenged intranasally wi...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.23141

    authors: Bae JS,Kim SH,Kim JH,Kim EH,Lyu L,Chung PS,Mo JH

    更新日期:2020-04-01 00:00:00

  • Corneal incisions produced with the fourth harmonic (266 nm) of the YAG laser.

    abstract::The fourth harmonic wavelength (266 nm) of a neodymium YAG laser was used to cut precise grooves on the surface of the human cornea. Well-controlled cuts were made using the laser operating at 1.3 kHz. The width of the grooves was 2-3 micron. The depth could be controlled by varying the amount of laser exposure. ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900050405

    authors: Berns MW,Gaster RN

    更新日期:1985-01-01 00:00:00

  • Characterization of tissue ablation with a continuous wave holmium laser.

    abstract:BACKGROUND AND OBJECTIVE:The pulsed holmium laser is a promising tool for tissue ablation but possesses some limitations. For example, it is capable of producing significant mechanical damage in certain tissues in the form of fissures and fractures. Because longer pulse durations should reduce mechanical damage, this s...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(SICI)1096-9101(1996)19:1<97::AID-LSM11>3.

    authors: Domankevitz Y,McMillan K,Nishioka NS

    更新日期:1996-01-01 00:00:00

  • Successful Treatment of Riehl's Melanosis With Mid-Fluence Q-Switched Nd:YAG 1064-nm Laser.

    abstract:BACKGROUND AND OBJECTIVES:Riehl's melanosis is a chronic acquired hyperpigmentation disorder that causes significant cosmetic problems for patients with this condition. Several treatment options, including low-fluence Q-switched Nd:YAG (QSNY) 1064-nm laser treatment, have been attempted with inconsistent results. We ai...

    journal_title:Lasers in surgery and medicine

    pub_type:

    doi:10.1002/lsm.23214

    authors: Cho MY,Roh MR

    更新日期:2020-10-01 00:00:00

  • Thermal modeling and experimental validation of human hair and skin heated by broadband light.

    abstract:BACKGROUND AND OBJECTIVE:In recent years, selective photothermolysis (PT) based on broadband light and assisted by skin vacuum (Photopneumatic Technology or PPx, by Aesthera) was introduced into the aesthetic market for epilation (hair removal) procedures. The present study aims to: (a) determine the overall effect of ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20743

    authors: Sun F,Chaney A,Anderson R,Aguilar G

    更新日期:2009-02-01 00:00:00

  • Bactericidal effect of pulsed 1,064 nm Nd:YAG laser light on Staphylococcus epidermidis is of photothermal origin: an in vitro study.

    abstract:BACKGROUND AND OBJECTIVE:The aim was to investigate the bactericidal effect of the 1,064 nm Nd:YAG laser on Staphylococcus epidermidis. MATERIAL AND METHODS:S. epidermidis was inoculated on agar plates and then exposed to pulsed laser light in three different modes: with an uninterrupted train of pulses, or with two d...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/1096-9101(2000)27:4<336::aid-lsm6>3.0.co;2

    authors: Grönqvist A,Wiström J,Axner O,Monsen TJ

    更新日期:2000-01-01 00:00:00

  • Extent of lateral epidermal protection afforded by a cryogen spray against laser irradiation.

    abstract:BACKGROUND AND OBJECTIVES:Cryogen spray cooling (CSC) has become an integral part of dermatologic laser surgery because of its ability to remove selectively large amounts of heat from human skin in short periods of time, thereby protecting the epidermis from unintended thermal injury. The objective of the present study...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20511

    authors: Franco W,Liu J,Romero-Méndez R,Jia W,Nelson JS,Aguilar G

    更新日期:2007-06-01 00:00:00

  • Hollow-waveguide-based nanosecond, near-infrared pulsed laser ablation of tissue.

    abstract:BACKGROUND AND OBJECTIVE:Short-pulse solid-state lasers have recently received much attention as new coherent light sources for medical applications, but steady transmission of their high-energy output pulses through a solid quartz fiber is difficult because of the onset of laser-induced breakdown. We previously demons...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20210

    authors: Sato S,Shi YW,Matsuura Y,Miyagi M,Ashida H

    更新日期:2005-08-01 00:00:00

  • Interstitial PDT for vascular anomalies.

    abstract:INTRODUCTION:Photodynamic therapy is a proven therapeutic modality in the management of variety of pathologies involving the human body. Our aim in this clinical study is to prospectively evaluate the outcome following interstitial photodynamic therapy for patients with vascular anomalies. Patients' reports on quality ...

    journal_title:Lasers in surgery and medicine

    pub_type: 临床试验,杂志文章

    doi:10.1002/lsm.21058

    authors: Jerjes W,Upile T,Hamdoon Z,Mosse CA,Akram S,Morley S,Hopper C

    更新日期:2011-07-01 00:00:00

  • Pulmonary blast injury in mice: a novel model for studying blast injury in the laboratory using laser-induced stress waves.

    abstract:BACKGROUND AND OBJECTIVES:Primary blast injury is produced by shock waves. Blast injuries to lungs are extremely critical threats to survival, but their etiology is largely undefined. The majority of animal models for these injuries use explosive or complex experimental settings, limiting the laboratory study of blast ...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20899

    authors: Satoh Y,Sato S,Saitoh D,Tokuno S,Hatano B,Shimokawaji T,Kobayashi H,Takishima K

    更新日期:2010-04-01 00:00:00

  • An intra-individual quantitative assessment of acute laser injury patterns in facial versus abdominal skin.

    abstract:INTRODUCTION:Clinical laser settings have traditionally been calibrated on abdominal skin to predict and anticipate patterns of injuries in facial skin. This experimental approach has limitations as facial skin and abdominal skin have differences that may influence the depth of laser injury. OBJECTIVE:The primary obje...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.21015

    authors: Bailey SH,Brown SA,Kim Y,Oni G,Abtahi F,Richardson JA,Hoopman J,Barton F,Kenkel JM

    更新日期:2011-02-01 00:00:00

  • Intravascular ultrasound can be used to evaluate pulsed laser ablation of arterial tissue.

    abstract:BACKGROUND AND OBJECTIVE:Intravascular ultrasound (IVUS) has been used successfully to detect intravascular lesions. This study evaluates the ability of IVUS to detect acoustic damage to the arterial wall following high power, pulsed laser ablation. STUDY DESIGN/MATERIALS AND METHODS:Arterial ablation and disruption w...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900160205

    authors: Friedl SE,Mathews ED,Miyamoto A,Abela GS

    更新日期:1995-01-01 00:00:00

  • Effect of helium-neon and infrared laser irradiation on wound healing in rabbits.

    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

    pub_type: 杂志文章

    doi:10.1002/lsm.1900090111

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

    更新日期:1989-01-01 00:00:00

  • Pharmacokinetics of pyropheophorbide-a-hexyl ether in the dog.

    abstract:BACKGROUND AND OBJECTIVES:Pyropheophorbide-a-hexyl ether (HPPH) is a new compound being investigated for use as a photosensitizer for photodynamic therapy; however, the pharmacokinetics are not known for any of the target species likely to be treated with this drug. The objective of this study was to determine the phar...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/(SICI)1096-9101(1996)18:4<406::AID-LSM10>3

    authors: Payne JT,McCaw DL,Casteel SW,Frazier D,Rogers K,Tompson RV

    更新日期:1996-01-01 00:00:00

  • Photobiomodulation with polychromatic light increases zone 4 survival of transverse rectus abdominis musculocutaneous flap.

    abstract:OBJECTIVE:The aim of this study was to evaluate the effect of relatively novel approach of application of polychromatic light waves on flap survival of experimental musculocutaneous flap model and to investigate efficacy of this modality as a delay procedure to increase vascularization of zone 4 of transverse rectus ab...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.23063

    authors: Calis M,Demirtas TT,Sert G,Irmak G,Gumusderelioglu M,Turkkani A,Çakar AN,Ozgur F

    更新日期:2019-08-01 00:00:00

  • Microarray analysis of cellular thermotolerance.

    abstract:BACKGROUND AND OBJECTIVES:Previously, we have shown that a 43°C pretreatment can provide thermotolerance to a following, more severe, thermal stress at 45°C. Using cells that lack the Hsp70 gene, we have also shown that there is still some thermotolerance in the absence of HSP70 protein. The purpose of this study was t...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.20983

    authors: Beckham JT,Wilmink GJ,Opalenik SR,Mackanos MA,Abraham AA,Takahashi K,Contag CH,Takahashi T,Jansen ED

    更新日期:2010-12-01 00:00:00

  • Collagen thermal damage and collagen synthesis after cutaneous laser resurfacing.

    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

    pub_type: 杂志文章

    doi:10.1002/(sici)1096-9101(1998)23:2<66::aid-lsm3>3.0

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

    更新日期:1998-01-01 00:00:00

  • Theramal, mechanical, optical, and morphologic changes in bovine nucleus pulposus induced by Nd:YAG (lambda = 1.32 microm) laser irradiation.

    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

    pub_type: 杂志文章

    doi:10.1002/lsm.1046

    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

  • Low power laser irradiation alters the rate of regeneration of the rat facial nerve.

    abstract::Low power laser irradiation has been reported to cause biological effects due to the photochemical and/or photophysical action of the radiation. This study determined quantitatively if transcutaneous low power laser irradiation can affect the regeneration of the rat facial nerve. The facial nerve was crushed unilatera...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.1900130113

    authors: Anders JJ,Borke RC,Woolery SK,Van de Merwe WP

    更新日期:1993-01-01 00:00:00

  • Effects of early combinatorial treatment of autologous split-thickness skin grafts in red duroc pig model using pulsed dye laser and fractional CO2 laser.

    abstract:BACKGROUND AND OBJECTIVE:The use of pulsed dye laser (PDL) and fractional CO2 (FX CO2 ) laser therapy to treat and/or prevent scarring following burn injury is becoming more widespread with a number of studies reporting reduction in scar erythema and pruritus following treatment with lasers. While the majority of studi...

    journal_title:Lasers in surgery and medicine

    pub_type: 杂志文章

    doi:10.1002/lsm.22702

    authors: Bailey JK,Blackstone BN,DeBruler DM,Kim JY,Baumann ME,McFarland KL,Imeokparia FO,Supp DM,Powell HM

    更新日期:2018-01-01 00:00:00