Otological Applications of Lasers

Wilpizeski, Chester R.

doi:10.1007/978-1-4615-7326-5_4

Cited by 23 publications

(18 citation statements)

References 27 publications

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“…Armstrong initially believed that 2 to 3 weeks was sufficient 4 . To create a tympanostomy that will remain open for several weeks, the CO 2 laser can be used to vaporize an opening in the tympanic membrane without inserting a PE tube 5‐10 …”

Section: Introductionmentioning

confidence: 99%

Laser‐Assisted Tympanostomy

Silverstein¹,

Kuhn²,

Choo³

et al. 1996

The Laryngoscope

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Laser-assisted tympanostomy (LAT) was performed in 70 ears to ventilate the middle ear space without using a pressure-equalizing tube. Using a CO2 laser attached to an operating microscope with a Microslad (microscope laser adaptor device), tympanostomies of 1.0 to 3.0 mm (average, 1.6 mm) in diameter were created and remained patent for an average of 3.14 weeks. Patency time was directly related to the size of the opening. Nearly all (97.9%) of the tympanostomies healed with no noticeable scarring and no persistent perforations. Seventy-eight percent of patients at the Florida Ear & Sinus Center (FESC, Sarasota, Fla.) and 84% of patients at the Head & Neck Surgery Group (New York) showed no evidence of recurrent effusion after a minimum follow-up of 3 months. LAT appears to be a safe, cost-effective procedure which can easily be performed in an office setting when bloodless opening in the tympanic membrane is needed for either treatment or diagnosis using endoscopes.

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Section: Introductionmentioning

confidence: 99%

Laser‐Assisted Tympanostomy

Silverstein¹,

Kuhn²,

Choo³

et al. 1996

The Laryngoscope

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“…To overcome such drawbacks, series of studies have been conducted on the possible applications of laser energy in stapes surgery, starting from 1967 [5]. The preliminary experiments on the biological effects of different wavelength lasers indicated a high degree of safety for the use of visible radiation (Neodynium, KTP and Argon) [6,7], and at the same time emphasized the potential risks of heating the perilymph with the CO 2 laser [8]. Therefore, the first clinical trials on stapes surgery were performed using visible lasers, which allowed footplate perforation with a series of flashes grouped within a 'rosette' pattern [8,9].…”

Section: Introductionmentioning

confidence: 99%

Functional Results in Stapedotomy with and without CO<sub>2</sub> Laser

Motta¹,

Luca²

2002

ORL

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The authors have studied the use of the CO₂ laser in performing primary stapedotomy in 451 patients affected by otosclerosis, operated between 1996 and 2000. Footplate perforation was practised with a traditional method, by means of a microdrill, in 169 subjects. A CO₂ laser was instead used in other 282 cases; the authors effected the platinotomy with a single spot, repeated if necessary, with the diameter adjusted to the caliber of the prosthesis. This procedure allowed a smooth-edged perforation to be obtained. In the 282 laser-operated patients, there was a significantly higher proportion having closure of the cochlear reserve within 10 dB than that found in the cases where the microdrill was used. Moreover, no postoperative anacusia or severe vertigo were recorded; this confirms the safety of the CO₂ laser as regards the inner ear. The functional results, therefore, document the validity of the exposed technique.

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“…Amongst us, Wenzel40 performed tympanocentesis with microelectrocautery -Lavinsky-HCPA model -in 83 children: 70.5% were still patent after 90 days. CO 2 laser tympanocentesis was initially carried out by Wilpizeski et al 41 in 1977, in 40 squirrel monkeys, by removing the whole postero-superior tympanic quadrant. Goode 42 , in 1982, presented a CO 2 laser tympanocentesis in ten cats and, possible, also the first report in eleven patients.…”

Section: Discussionmentioning

confidence: 99%

Cicatrização da membrana timpânica na timpanocentese com laser de argônio comparado à técnica com microlanceta: estudo experimental em ratos

Castagno¹,

Lavinksy

2006

Rev. Bras. Otorrinolaringol.

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Otite média secretora (OMS) e otite média aguda recorrente (OMAR) podem necessitar tratamento cirúrgico para adequada ventilação da orelha média. A abertura clássica do tímpano (timpanocentese) requer incisão por microlanceta sob controle de microscópio cirúrgico e mantém-se patente por alguns dias. Estudos recentes sugerem que a timpanocentese feita por diferentes lasers pode permanecer permeável por maior tempo, o que possibilitaria a normalização da otite média. MATERIAL E MÉTODOS: Neste estudo experimental 34 ratos linhagem Wistar, albinos, machos adultos pesando cerca de 300g, foram anestesiados com cetamina 27 mg/kg e xilazina 2,7 mg/kg. A seguir, foram submetidos à timpanocentese incisional com microlanceta no ouvido direito (ML-OD), e à timpanocentese mediada por laser de argônio no ouvido esquerdo (LA-OE). RESULTADOS: Não houve diferença significativa no tempo de cicatrização das timpanocenteses feitas com laser de argônio ou microlanceta. Todas as timpanocenteses cicatrizaram em 10 dias. CONCLUSÃO: A timpanocentese com laser de argônio apresentou patência e cicatrização semelhantes à técnica clássica com microlanceta realizada em ratos Wistar sem enfermidades de orelha média.

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Otological Applications of Lasers

Cited by 23 publications

References 27 publications

Laser‐Assisted Tympanostomy

Laser‐Assisted Tympanostomy

Functional Results in Stapedotomy with and without CO<sub>2</sub> Laser

Cicatrização da membrana timpânica na timpanocentese com laser de argônio comparado à técnica com microlanceta: estudo experimental em ratos

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