Laser Induced Ear Damage

Kelemen, George; Laor, Yona; Klein, Edmund

doi:10.1001/archotol.1967.00760050605002

Cited by 16 publications

(3 citation statements)

References 10 publications

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“…They employed a ruby laser on the labyrinth of pigeons and demonstrated primary thermal ablation of portions of the labyrinth, but also remote injuries attributable to presumed “ultrasonic” effects within the labyrinth. Similar effects were noted by Kelemen et al 69,70 in 1966 and 1967 using ruby and Nd:YAG laser in mouse temporal bones, finding internal temporal bone injury with massive cochlear duct hemorrhage and injuries to the organ of Corti and vestibular labyrinth, despite apparently uninjured overlying skin and bone. It was concluded that laser irradiation could have profound effects at depth within tissues and that great caution would need to be exercised in clinical use.…”

Section: History Of Stapes Surgerysupporting

confidence: 80%

Laser‐Assisted Endoscopic Stapedectomy: A Prospective Study

Poe

2000

The Laryngoscope

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Objective: To improve the techniques required to perform a stapedotomy without prosthesis (stapedioplasty). Study Design: New infrared lasers were evaluated for potential use in otological surgery in guinea pigs. A prospective human trial of 34 primary stapes operations using the Argon ion laser was performed, with 11 stapedioplasties and 23 conventional stapedotomies as controls. Methods: Laser-tissue interactions were evaluated for temporal bone and live guinea pig tissues, measuring crater histology and labyrinthine temperature elevations. Patients undergoing stapedioplasty had Argon ion laser cuts with endoscopic assistance made in the anterior crus and footplate to mobilize the posterior segment of the stapes while the anterior portion remained fixed. Results: Diode laser (808-nm) vaporization craters and temperature elevations in the vestibule were suitable for clinical use. Overall, stapedioplasty patients' hearing was improved with air-bone gap closure to a mean of 8.3 dB (SD ؎ 9.8 dB). Conclusions: Patients with anterior footplate otosclerosis are candidates for stapedioplasty preserving the annular ring and stapes tendon and eliminating prosthesis complications. High-resolution small endoscopes, coupled with Argon ion or diode lasers promise to improve stapes visualization, enhancing the ability to perform minimally invasive surgery on the stapes footplate.

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Section: History Of Stapes Surgerysupporting

confidence: 80%

Laser‐Assisted Endoscopic Stapedectomy: A Prospective Study

Poe

2000

The Laryngoscope

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“…The sample is placed on the detector acoustic conductor in good acoustic contact, which is achieved by using water as intermediate substance for acoustic conduction matching. 3. RESULTS.…”

Section: Methodsmentioning

confidence: 99%

<title>Excimer laser drilling of bone: shock wave and profile measurements</title>

et al. 1995

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The shock wave generation in stapes models during laser ear surgery is experimentally investigated The intensity absolute measurements of shock waves generated by excimer laser in the treated bone is performed. It is shown that the roughness of the crater bottom profile depends on the laser beam fluence. it is revealed that in pulse repetition regime of bone drilling there exists an optimal laser beam fluence, which provides as high rate of drilling as smooth bottom of crater. For ArF and KrF excimer lasers the optimal fluence is equal to about 0.4-0.5 i/cm2 at the repetition rote 5 Hz. The amplitude of shock wave induced at these parameters of laser beam in the back side of the bone sample of 1.1 mm thickness was measured to be about 25 bar. For 0.5 mm thick bone sample the amplitude of such a shock wave was measured to be about 60 bar and the corresponding pressure gradient 0.35 bar/pm.

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“…Sataloff [9] erzeugte 1967 erstmalig experimentell mit einem Neodym:Glas-Laser Vaporisationen an isolierten menschlichen Fuûplatten. Bei der Bestrahlung des Innenohres von Mäusen mit den gepulsten Rubin-und Nd:YAG-Lasern konnte Kelemen [10] Blutungen nachweisen. Wilpizeski [11] bestrahlte mit dem Argon-Laser die Bogengänge von Affen, um selektiv die Funktion des Labyrinths auszuschalten.…”

Section: Introductionunclassified

2 Laser in der Otologie

Jovanovic¹

2003

Laryngorhinootologie

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Laser Induced Ear Damage

Cited by 16 publications

References 10 publications

Laser‐Assisted Endoscopic Stapedectomy: A Prospective Study

Laser‐Assisted Endoscopic Stapedectomy: A Prospective Study

<title>Excimer laser drilling of bone: shock wave and profile measurements</title>

2 Laser in der Otologie

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