caa a22 4500 477087558 CHVBK 20180405111507.0 cr unu---uuuuu 170330e19961101xx s 000 0 eng 10.1007/BF00179949 doi (NATIONALLICENCE)springer-10.1007/BF00179949 Histological changes in elastic components of soft palate scars after CO2 and contact Nd:YAG laser incisions in the dog as an experimental model [Elektronische Daten] [J. Laranne, S. Matsune, T. Shima, M. Ohyama] Soft palate stiffening operations — often with CO2 or contact Nd:YAG lasers — have been used recently to treat patients with pronounced snoring. Differences in soft palate scars formed after CO2 and contact Nd:YAG laser incisions were studied in an animal model to determine which of these lasers produces a more rigid scar and consequently might be more effective for a soft palate stiffening operation. Six mongrel dogs were placed in each laser group, after which either the CO2 or Nd:YAG laser was used to make a 1.5-cm-long soft palate incision. The scars produced were then excised and studied histologically 4 weeks postoperatively. Special attention was paid to collagen density and elastin fibers in the scar tissue. After contact Nd:YAG laser incisions scar tissue was found to contain densely aligned collagen fibers and practically no elastin fibers. CO2 laser incisions produced significantly different scars: irregularly arranged collagen fibers with some elastin fibers also inside the scar tissue. Differences in the shapes of the scars and wound contractions were also found that were only seen after contact laser incisions. These findings suggest that the contact Nd:YAG laser might be more effective for soft palate stiffening operations. Springer-Verlag, 1996 Soft palate nationallicence Snoring nationallicence Laser surgery nationallicence Laranne J. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut Matsune S. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut Shima T. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut Ohyama M. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut European Archives of Oto-Rhino-Laryngology Springer-Verlag 253/8(1996-11-01), 454-459 0937-4477 253:8<454 1996 253 405 https://doi.org/10.1007/BF00179949 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00179949 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Laranne J. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut NATIONALLICENCE 700 1- Matsune S. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut NATIONALLICENCE 700 1- Shima T. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut NATIONALLICENCE 700 1- Ohyama M. Department of Otolaryngology, Faculty of Medicine, Kagoshima University, Kagoshima, Japan aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer-Verlag 253/8(1996-11-01), 454-459 0937-4477 253:8<454 1996 253 405 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer