A 1,470 nm diode laser in stapedotomy: Mechanical, thermal, and acoustic effects

التفاصيل البيبلوغرافية
العنوان: A 1,470 nm diode laser in stapedotomy: Mechanical, thermal, and acoustic effects
المؤلفون: Simone P. C. Koenraads, Digna M. A. Kamalski, Tjeerd de Boorder, Wilko Grolman
المصدر: Lasers in Surgery and Medicine. 49:619-624
بيانات النشر: Wiley, 2017.
سنة النشر: 2017
مصطلحات موضوعية: Materials science, Hydrophone, Acoustics, Perforation (oil well), Dermatology, Laser, law.invention, Footplate, 030207 dermatology & venereal diseases, 03 medical and health sciences, Wavelength, 0302 clinical medicine, law, Schlieren, Surgery, 030223 otorhinolaryngology, Stapes, Diode
الوصف: BACKGROUND AND OBJECTIVES Multiple laser systems have been investigated for their use in stapes surgery in patients with otosclerosis. The diode 1,470 nm laser used in this study is an attractive laser system because it is easily transported and relatively inexpensive in use. This wavelength has relative high absorption in water. This study aimed to investigate the mechanical, thermal, and acoustic effects of the diode 1,470 nm laser on a stapes in an inner ear model. MATERIALS AND METHODS Experiments were performed in an inner ear model including fresh frozen human stapes. High-speed imaging with frame rates up to 2,000 frames per second (f/s) was used to visualize the effects in the vestibule during fenestration of the footplate. A special high-speed color Schlieren technique was used to study thermal effects. The sound produced by perforation was recorded by a hydrophone. Single pulse settings of the diode 1,470 nm laser were 100 ms, 3 W. RESULTS Diode 1,470 nm laser fenestration showed mechanical effects with small vapor bubbles and pressure waves pushed into the vestibule. Thermal imaging visualized an increase temperature underneath the stapes footplate. Acoustic effects were limited, but larger sounds levels were reached when vaporization bubbles arise and explode in the vestibule. CONCLUSION The diode 1,470 nm laser highly absorbs in perilymph and is capable of forming a clear fenestration in the stapes. An overlapping laser pulse will increase the risk of vapor bubbles, pressure waves, and heating the vestibule. As long as we do not know the possible damage of these effects to the inner ear function, it seems advisable to use the laser with less potential harm. Lasers Surg. Med. 49:619-624, 2017. © 2017 Wiley Periodicals, Inc.
تدمد: 0196-8092
DOI: 10.1002/lsm.22649
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a70b8acea85ab2be3e8d12ef5f90a34c
https://doi.org/10.1002/lsm.22649
Rights: CLOSED
رقم الانضمام: edsair.doi...........a70b8acea85ab2be3e8d12ef5f90a34c
قاعدة البيانات: OpenAIRE
الوصف
تدمد:01968092
DOI:10.1002/lsm.22649