Experimental study on thermic effects, morphology and function of guinea pig cochlea: A comparison between the erbium:yttrium-aluminum-garnet laser and carbon dioxide laser

2008 ◽  
Vol 40 (6) ◽  
pp. 407-414 ◽  
Author(s):  
Dong-Dong Ren ◽  
Fang-Lu Chi
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Guinea Pig ◽  
Carbon Dioxide Laser ◽  
Guinea Pig Cochlea ◽  
And Function

scholarly journals An Experimental Study of the Selective Proximal Gastric Vagotomy with Carbon Dioxide Laser

1982 ◽  
Vol 3 (1) ◽  
pp. 537-540
Author(s):  
Kazuo Miura ◽  
Toshio Kadota ◽  
Sumio Kanabe ◽  
Kuniyoshi Tamaki ◽  
Yuhko Ohsaki ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Carbon Dioxide Laser ◽  
Proximal Gastric Vagotomy

In Vitro Ear Cartilage Shaping with Carbon Dioxide Laser an Experimental Study

2000 ◽  
Vol 109 (12) ◽  
pp. 1162-1166 ◽  
Author(s):  
George A. Velegrakis ◽  
Chariton E. Papadakis ◽  
Antonios A. Nikolidakis ◽  
Emmanuel P. Prokopakis ◽  
Miltiadis E. Volitakis ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Carbon Dioxide Laser ◽  
Ear Cartilage

Influence of carbon dioxide laser irradiation on the morphology and function of guinea pig cochlea

2005 ◽  
Vol 119 (9) ◽  
pp. 684-692 ◽  
Author(s):  
DongDong Ren ◽  
JingWU Sun ◽  
GuangLun Wan ◽  
Feng Yang ◽  
Fang Shen
Keyword(s):  
Nitric Oxide ◽  
Carbon Dioxide ◽  
Guinea Pig ◽  
Inner Ear ◽  
Laser Irradiation ◽  
Carbon Dioxide Laser ◽  
Organ Of Corti ◽  
Spiral Ligament ◽  
Laser Application ◽  
Brainstem Response

Both experimental and clinical studies have demonstrated that carbon dioxide laser is suitable for stapedotomy. The aim of this study was to investigate morphological, electrophysiological and functional changes in the inner ear after irradiation with CO2 laser set with different energy parameters.A cochleostomy in the basal cochlear turn of guinea pig cochleae was performed with CO2 laser of 1, 2 and 3 w, respectively. The cochleae were removed three weeks after laser irradiation. The auditory evoked brainstem response (ABR) was measured before and after laser application and immediately before removal of the cochlea. Immunohistochemical methods were used to examine inducible nitric oxide synthase (iNOS/NOSII) and heat-shock protein 70(Hsp70) concentrations in the cochlea after laser application. The organ of Corti was studied by scanning electron microscopy.Worse hearing loss was observed in animals receiving higher-power CO2 laser. These findings correlated with more intense injury of the cochlear ultrastructure and with positiveexpression of iNOS and Hsp70 in spiral ganglion cells, nerve fibres, supporting cells of the organ of Corti and cells of the spiral ligament.The CO2 laser as a noncontact procedure is shown to be effective and safe if the total amount of energy is kept within the limits applied in this study. Nitric oxide and stressproteins play important roles in the traumatic mechanism of the inner ear, which are related tohearing loss and injury of the ultrastructure of the inner ear.

Comparative experimental study on the use of the carbon dioxide laser beam in partial nephrectomy

1982 ◽  
Vol 2 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Benjamin Barzilay ◽  
Graciela Lijovetzky ◽  
Saul Perlberg ◽  
Marco Caine
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Laser Beam ◽  
Partial Nephrectomy ◽  
Carbon Dioxide Laser

scholarly journals An Experimental Study of the Parietal Cell Vagotomy with Carbon Dioxide Laser

1984 ◽  
Vol 4 (1) ◽  
pp. 199-200
Author(s):  
Toshio Kadota ◽  
Kazuo Mimura ◽  
Yuhko Ohsaki ◽  
Sumio Kanabe ◽  
Hoshio Hiraide ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Parietal Cell ◽  
Carbon Dioxide Laser ◽  
Parietal Cell Vagotomy

Histomorphological transformation of the auricular cartilage after carbon dioxide laser-assisted Mustardé otoplasty. An experimental study

2008 ◽  
Vol 24 (3) ◽  
pp. 433-437 ◽  
Author(s):  
Igor Janík ◽  
Ivo Stárek ◽  
Zdeněk Hložek ◽  
Jiří Hubáček ◽  
Radko Novotný ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Experimental Study ◽  
Carbon Dioxide Laser ◽  
Auricular Cartilage

Influence of pulsed laser irradiation on the morphology and function of the guinea pig cochlea

2000 ◽  
Vol 144 (1-2) ◽  
pp. 97-108 ◽  
Author(s):  
S Jovanovic ◽  
Y Jamali ◽  
D Anft ◽  
U Schönfeld ◽  
H Scherer ◽  
...  
Keyword(s):  
Guinea Pig ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Guinea Pig Cochlea ◽  
And Function ◽  
Pulsed Laser Irradiation
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