The Journal of Japan Society for Laser Surgery and Medicine
Online ISSN : 1881-1639
Print ISSN : 0288-6200
ISSN-L : 0288-6200
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Volume 35, Issue 4
Displaying 1-14 of 14 articles from this issue
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Letter to the editor
AWARDED ARTICLE
  • Photodynamic Therapy for Methicillin-Resistant Staphylococcus Aureus
    Toshiyuki Ozawa, Kuniyuki Morimoto, Daisuke Tsuruta, Kunio Awazu
    2015 Volume 35 Issue 4 Pages 403-407
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0031
    JOURNAL FREE ACCESS
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    Bacterial resistance to antibiotics has become a worldwide problem. Photodynamic therapy (PDT) is thought to cause bactericidal action by the cytocidal effect of singlet oxygen. Therefore, PDT has a low possibility of appearance of antibiotic-resistant bacteria and considered as a new treatment for bacterial infectious diseases. Herein, publications concerning PDT for methicillin-resistant Staphylococcus aureus are reviewed in this article, and we report our study about PDT for MRSA using 5-aminolevulinic acid.
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TOPICAL ARTICLE: Recent Development in Optical Coherence Tomography for Cinical
  • [title in Japanese]
    [in Japanese]
    2015 Volume 35 Issue 4 Pages 408
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0032
    JOURNAL FREE ACCESS
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  • Progress of OCT Diagnostic Instrument in Ophthalmology
    Yoshikiyo Moriguchi, Masahiro Akiba
    2015 Volume 35 Issue 4 Pages 409-415
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0033
    JOURNAL FREE ACCESS
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    Optical coherence tomography (OCT) is a widely known cross-sectional imaging modality which performs high-resolution, cross-sectional tomographic imaging of the microstructure in ophthalmology. By extracting the layer information from retinal image, it enables to create a thickness map to reveal the inter-retinal thickness. In this paper, usefulness of current OCT system for ophthalmic diagnosis is discussed. Then, recent research-based advancement of OCT is studied.
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  • OCT Application to the Field of Posthodontics
    Atsushi Mine, Takuya Minamino, Mariko Matsumoto, Hirohumi Yatani
    2015 Volume 35 Issue 4 Pages 416-423
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0034
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    Prosthodontics is the one of major dental study fields to restore tooth substance defects and replace missing tooth structures by means of artificial materials. In this review, optical coherence tomography (OCT)-related researches in the field of prosthodontics were searched from MEDLINE, Igaku Chuo Zasshi and related papers. It could be found the OCT-related researches about implants, crown, removable denture, post core build-up and optical impressions. The advantages and limitations of using OCT to observe dental hard tissues were discussed after viewing OCT nondestructive images of post core build-up teeth. At the end, in hope of helping the development of OCT, its applications in the prosthodontic treatment were considered.
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  • Application of Optical Coherence Tomography to Monitoring of Brain Viability
    Manabu Sato, Izumi Nishidate
    2015 Volume 35 Issue 4 Pages 424-431
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0035
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    The application of optical coherence tomography (OCT) to monitoring of brain viability has been studied. Measuring in vivo rat brain, after overdose the OCT signal increased before cardiac arrest (CA). The signal increased before CA without overdose when a periodical temperature load was over threshold. Signals synchronized with periodical changes of tissue temperature with the negative correlation. The signal increased with the decrease of spectral entropy of EEG. The feasibility of application of OCT was confirmed.
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  • Ultrahigh Resolution OCT Using Supercontinuum
    Norihiko Nishizawa
    2015 Volume 35 Issue 4 Pages 432-437
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0036
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    By use of supercontinuum source, which emits bright, and ultrawideband beam, we can demonstrate ultrahigh resolution (UHR) OCT which enables us to achieve highly sensitive and precise imaging. We demonstrated UHR-OCT imaging of several different samples using supercontinuum at 5 different wavelengths among 0.8 – 1.7 um wavelengths. In this review paper, we introduce the advance of UHR-OCT based on our recent achievement.
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  • Application to Skin Physiology Using OCT
    Masato Ohmi
    2015 Volume 35 Issue 4 Pages 438-443
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0037
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    The sweat gland and peripheral vessels underneath skin surface are a typical minute organ governed by the skin sympathetic nerve, and have important physiology functions to control of body temperature or nutrition support and maintenance of a peripheral organization. Dynamics of the mental sweating of sweat glands and the peripheral vessels reflect the activity of a sympathetic nerve. In this paper, I demonstrated the dynamic analysis of the mental sweating of the eccrine sweat glands and the dynamics of the small artery of human finger by optical coherence tomography (OCT).
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TOPICAL ARTICLE: Significance of Laser Treatment in a Super Aging Society
  • [title in Japanese]
    [in Japanese]
    2015 Volume 35 Issue 4 Pages 444
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0038
    JOURNAL FREE ACCESS
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  • Surgical Treatments for Older Men with Benign Prostatic Hyperplasia
    Narihito Seki
    2015 Volume 35 Issue 4 Pages 445-450
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0039
    JOURNAL FREE ACCESS
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    Both photoselective vaporization of the prostate with LBO laser (532 nm in wave length) and holmium laser (2140 nm in wave length) enucleation of the prostate which does represent the technical development in the treatment of BPH, have been popular as endosurgical alternatives to traditional transurethral resection of the prostate. These techniques appear to be effective with less morbidity including a reduced rate of transurethral resection syndrome and minimal peri- and post-operative bleeding, as well as having a shorter duration of catheterization and hospital stay.
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  • Cosmetic Anti-Aging Medicine Using Laser for the Aged Patients
    Mine Ozaki, Takashi Satoh, Hitomi Eto
    2015 Volume 35 Issue 4 Pages 451-455
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0040
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    The policy of anti-aging stands for spirit of the aged who want to live vividly with an aging society. We consider the desire for their getting back to young does not harm themselves, but benefit the social power in itself. In a cosmetic point of view, the pigmentations or wrinkles are most concerned disease for the aged who consult a clinic or hospital for the treatment as for an anti-aging. We introduce our treatment using laser for such disease of the aged patients in this paper.
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  • Endoscopic Lithotripsy for the Upper Urinary Tract Stones in the Elderly and Bedridden Patients
    Ryoji Takazawa, Sachi Kitayama, Toshihiko Tsujii
    2015 Volume 35 Issue 4 Pages 456-461
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0041
    JOURNAL FREE ACCESS
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    Urolithiasis in the elderly is an increasing problem in Japan. The elderly patients include more female patients, and had more urinary infections, higher cardiovascular risks and anesthetic risks. Endoscopic lithotripsy with holmium:YAG laser is an effective and safe treatment for the elderly patients. Especially for multiple infection stones in the bedridden patients, we should perform the proper drainage to control the urinary infection, and then aim at the complete stone-free status by taking advantages of endoscopic techniques.
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  • Ocular Laser Treatment in the Aging Population
    Koji Kadoya
    2015 Volume 35 Issue 4 Pages 462-467
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0042
    JOURNAL FREE ACCESS
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    Ocular laser treatment in elderly patients can be performed safely in a short time without particular consideration, e.g. dementia and, cardiovascular disease, because it is a minimally invasive procedure rather than a surgical treatment. Here I describe i) characteristics of the eyes of the elderly population, ii) types of laser beams and indications for laser treatment in ocular disease, and iii) four main ocular diseases (after cataract, angle closure glaucoma, age-related macular degeneration, and central retinal vein occlusion) for which elderly patients frequently benefit from laser treatment.
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  • Photodynamic Therapy for Gastrointestinal Cancer in the Elderly
    Tsuyoshi Kaneko, Hirofumi Matsui, Osamu Shimokawa, Takashi Mamiya, Yuj ...
    2015 Volume 35 Issue 4 Pages 468-474
    Published: January 15, 2015
    Released on J-STAGE: May 19, 2016
    DOIhttps://doi.org/10.2530/jslsm.jslsm-35_0043
    JOURNAL FREE ACCESS
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    Photodynamic therapy (PDT) is one of a cancer treatment which use a photosensitizer and a laser devise. Photosensitizers generate singlet oxygen which involves cellular apoptosis under oxidative stresses. Since photosensitizers such as porphyrins and/or chlorins used to be particularly accumulated into cancer cells, PDT is able to derive a cancer specific cell death. Moreover, photosensitizers refer to be fluorescent substances, their cancer specific localization help us a clue to diagnose the lesion’l area; it is so-called photodynamic diagnosis (PDD). However, patients after PDT should continue to be hospitalized for 2wks in a dark room to prevent photo-hypersensitivity. Nowadays, the confirmed therapy for the early-staged gastric cancer is thus endoscopic sub-mucosal dissection (ESD). Nevertheless, almost all countries are changing into aging countries. For the preventions for heart and brain vascular diseases, aged persons used to take anti-platelet reagents which are taboos for ESD. Since PDT involves thrombus in the micro-vascular in the laser-irradiated area, the risk of hemorrhages is less than ESD for the antithrombotics taking patients. Actually, in the cases of Tsukuba University Hospital, almost all aged patients showed good outcomes without any severe complications. We believe PDT is an answer for the cancer treatment with senior aged patients.
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