Laser myringotomy with different IR laser systems

B. W. Sedlmaier; A. Blödow; S. Jovanovic; L. Nagli; H. G. Eberle

doi:10.1016/s0938-765x(98)80020-5

Laser myringotomy with different IR laser systems

B. W. Sedlmaier, A. Blödow, S. Jovanovic, L. Nagli, H. G. Eberle

Research output: Contribution to journal › Article › peer-review

Abstract

Lasers suitable for myringotomy are the erbium:YAG laser (2940 nm) and the CO₂ laser (10600 nm). The study examines the laser-tissue interaction with tympanic membranes of guinea-pigs, horses and formalin-fixed human tympanic membranes and the effects demonstrated by light-microscopy and scanning-electron-microscopy. The minimum energy densities for a perforation with the erbium:YAG laser in guinea-pig eardrums and formalin-fixed human tympanic membranes are 8 J/cm² and 16 J/cm² respectively. There are no thermic side effects. With the CO₂ laser thermic side effects only occur with energy transmission via silver halide polycrystalline fiber. The minimum power density for perforation is 400 W/cm² (pulse duration 50 ms). With the microslad 719 micromanipulator (Sharplan, Israel, Tel Aviv), the minimum power densities for perforation of guinea-pig and horse eardrums and for formalin-fixed human tympanic membranes are 150 W/cm², 300 W/cm² and 600 W/cm² (pulse duration: 50 ms) respectively. The minimum power density to achieve a perforation with the SwiftLase™ 757 scanner (Sharplan, Israel, Tel Aviv), is 250 W/cm² in guinea-pig eardrums (pulse duration: 100 ms). A prototype of a hand-held CO₂ laser otoscope is suitable for performing laser myringotomies in formalin-fixed human tympanic membranes.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Lasermedizin
Volume	14
Issue number	1-2
DOIs	https://doi.org/10.1016/s0938-765x(98)80020-5
State	Published - Dec 1998
Externally published	Yes

Keywords

Application system
Fiber
Histology
IR laser
Laser-tissue interaction
Tympanic membrane

Access to Document

10.1016/s0938-765x(98)80020-5

Cite this

@article{da9096d7ab4a42c2852584983657b7b3,

title = "Laser myringotomy with different IR laser systems",

abstract = "Lasers suitable for myringotomy are the erbium:YAG laser (2940 nm) and the CO2 laser (10600 nm). The study examines the laser-tissue interaction with tympanic membranes of guinea-pigs, horses and formalin-fixed human tympanic membranes and the effects demonstrated by light-microscopy and scanning-electron-microscopy. The minimum energy densities for a perforation with the erbium:YAG laser in guinea-pig eardrums and formalin-fixed human tympanic membranes are 8 J/cm2 and 16 J/cm2 respectively. There are no thermic side effects. With the CO2 laser thermic side effects only occur with energy transmission via silver halide polycrystalline fiber. The minimum power density for perforation is 400 W/cm2 (pulse duration 50 ms). With the microslad 719 micromanipulator (Sharplan, Israel, Tel Aviv), the minimum power densities for perforation of guinea-pig and horse eardrums and for formalin-fixed human tympanic membranes are 150 W/cm2, 300 W/cm2 and 600 W/cm2 (pulse duration: 50 ms) respectively. The minimum power density to achieve a perforation with the SwiftLase{\texttrademark} 757 scanner (Sharplan, Israel, Tel Aviv), is 250 W/cm2 in guinea-pig eardrums (pulse duration: 100 ms). A prototype of a hand-held CO2 laser otoscope is suitable for performing laser myringotomies in formalin-fixed human tympanic membranes.",

keywords = "Application system, Fiber, Histology, IR laser, Laser-tissue interaction, Tympanic membrane",

author = "Sedlmaier, {B. W.} and A. Bl{\"o}dow and S. Jovanovic and L. Nagli and Eberle, {H. G.}",

year = "1998",

month = dec,

doi = "10.1016/s0938-765x(98)80020-5",

language = "אנגלית",

volume = "14",

pages = "41--45",

journal = "Lasermedizin",

issn = "0938-765X",

publisher = "Elsevier GmbH",

number = "1-2",

}

TY - JOUR

T1 - Laser myringotomy with different IR laser systems

AU - Sedlmaier, B. W.

AU - Blödow, A.

AU - Jovanovic, S.

AU - Nagli, L.

AU - Eberle, H. G.

PY - 1998/12

Y1 - 1998/12

N2 - Lasers suitable for myringotomy are the erbium:YAG laser (2940 nm) and the CO2 laser (10600 nm). The study examines the laser-tissue interaction with tympanic membranes of guinea-pigs, horses and formalin-fixed human tympanic membranes and the effects demonstrated by light-microscopy and scanning-electron-microscopy. The minimum energy densities for a perforation with the erbium:YAG laser in guinea-pig eardrums and formalin-fixed human tympanic membranes are 8 J/cm2 and 16 J/cm2 respectively. There are no thermic side effects. With the CO2 laser thermic side effects only occur with energy transmission via silver halide polycrystalline fiber. The minimum power density for perforation is 400 W/cm2 (pulse duration 50 ms). With the microslad 719 micromanipulator (Sharplan, Israel, Tel Aviv), the minimum power densities for perforation of guinea-pig and horse eardrums and for formalin-fixed human tympanic membranes are 150 W/cm2, 300 W/cm2 and 600 W/cm2 (pulse duration: 50 ms) respectively. The minimum power density to achieve a perforation with the SwiftLase™ 757 scanner (Sharplan, Israel, Tel Aviv), is 250 W/cm2 in guinea-pig eardrums (pulse duration: 100 ms). A prototype of a hand-held CO2 laser otoscope is suitable for performing laser myringotomies in formalin-fixed human tympanic membranes.

AB - Lasers suitable for myringotomy are the erbium:YAG laser (2940 nm) and the CO2 laser (10600 nm). The study examines the laser-tissue interaction with tympanic membranes of guinea-pigs, horses and formalin-fixed human tympanic membranes and the effects demonstrated by light-microscopy and scanning-electron-microscopy. The minimum energy densities for a perforation with the erbium:YAG laser in guinea-pig eardrums and formalin-fixed human tympanic membranes are 8 J/cm2 and 16 J/cm2 respectively. There are no thermic side effects. With the CO2 laser thermic side effects only occur with energy transmission via silver halide polycrystalline fiber. The minimum power density for perforation is 400 W/cm2 (pulse duration 50 ms). With the microslad 719 micromanipulator (Sharplan, Israel, Tel Aviv), the minimum power densities for perforation of guinea-pig and horse eardrums and for formalin-fixed human tympanic membranes are 150 W/cm2, 300 W/cm2 and 600 W/cm2 (pulse duration: 50 ms) respectively. The minimum power density to achieve a perforation with the SwiftLase™ 757 scanner (Sharplan, Israel, Tel Aviv), is 250 W/cm2 in guinea-pig eardrums (pulse duration: 100 ms). A prototype of a hand-held CO2 laser otoscope is suitable for performing laser myringotomies in formalin-fixed human tympanic membranes.

KW - Application system

KW - Fiber

KW - Histology

KW - IR laser

KW - Laser-tissue interaction

KW - Tympanic membrane

UR - http://www.scopus.com/inward/record.url?scp=33746941418&partnerID=8YFLogxK

U2 - 10.1016/s0938-765x(98)80020-5

DO - 10.1016/s0938-765x(98)80020-5

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:33746941418

SN - 0938-765X

VL - 14

SP - 41

EP - 45

JO - Lasermedizin

JF - Lasermedizin

IS - 1-2

ER -

Laser myringotomy with different IR laser systems

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this