Modification and comparison of minimally invasive cochleostomy techniques: A pilot study

Cipolla, Michael J.; Iyer, Pritish; Dome, Claudia; Welling, D. Bradley; Bush, Matthew L.

doi:10.1002/lary.23231

Cited by 12 publications

(9 citation statements)

References 7 publications

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“…Tinnitus, der in der Regel passager ist, unter ungünstigen Umständen aber auch dauerhaft persistieren kann. In verschiedenen Arbeiten konnte nachgewiesen werden, dass durch den Bohrvorgang Schalldruckpegel von bis zu 134 dB oder höher erreicht werden können [3,4,12,17]. Auch wurde dabei nachgewiesen, dass das Ausmaß des akustisch-mechanischen Traumas proportional zur Dauer des Bohrens bzw.…”

Section: Geschichte Und Technik ▼unclassified

“…Laser haben in der HNO-Chirurgie einen hohen Stellenwert, insbesondere bei der Durchführung einer Stapedotomie [1]. Hierbei kommt vor allem der CO 2 -Laser zum Einsatz, mit welchem auch die Durchführbarkeit einer Cochleostomie untersucht wurde [3]. Die Eröffnung der Cochlea mittels Bohrer ist zurzeit das Standardverfahren, allerdings konnte in den Arbeiten auch nachgewiesen werden, dass der gemessene Schalldruckpegel sehr hoch ist und das Gehör Schaden nehmen kann [8].…”

Section: Diskussion ▼unclassified

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Überblick der Cochleostomieverfahren mit Fokussierung auf neue Laserablationstechniken

et al. 2015

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Section: Geschichte Und Technik ▼unclassified

Section: Diskussion ▼unclassified

Überblick der Cochleostomieverfahren mit Fokussierung auf neue Laserablationstechniken

et al. 2015

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“…A normal CI surgery takes approximately 2 hours [2]. The average period of drilling directly on the cochlea to prepare the cochleostomy is 8 minutes [3]. Cochlea can be exposed to an average sound pressure level of 89.9 dB SPL, maximal 118 dB SPL during the approximately 8minute continuous drilling period [3].…”

Section: Introductionmentioning

confidence: 99%

Noise Exposure on Human Cochlea During Cochleostomy Formation Using Conventional and a Hand Guided Robotic Drill

Boulgouris

Brett

et al. 2020

Otology &Amp; Neurotology

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Objective: To investigate the disturbance induced in the cochlea during cochleostomy using conventional drill and a hand guided robotic drill. Study Design:The study is based on experimental measurements using the Laser Doppler Vibrometer during the drilling processes converted to Sound Pressure Levels (SPL) for comparison. Setting:The study is based on experimental results of three sets of cochleostomies on human cadaver heads.Main Outcome Measure(s): Robotic drilling, in comparison to the conventional drilling method, creates a consistently lower level of disturbance in cochlea across the hearing frequency range.Results: Robotic drilling, in comparison to the conventional drilling method, creates a consistently lower level of disturbance in cochlea across the hearing frequency range. Conclusions:It is reasonable to conclude that robotic drilling has a lower possibility of creating acoustic trauma in cochlea that endangers the residual hearing of patients.

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“…Another SS method gaining clinical interest is to insert the implant directly through the RWM, avoiding drilling of the otic capsule altogether to minimise the potential risk of damage to the delicate intracochlear structures [Skarzynski et al, 2007; Gudis et al, 2012]. Trials are also underway in-vitro to perform the cochleostomy with smart robotic micro-drills [Coulson et al, 2008] or with hand-held CO 2 lasers [Fishman et al, 2010; Cipolla et al, 2012]. …”

Section: Introductionmentioning

confidence: 99%

Influence of Cochleostomy and Cochlear Implant Insertion on Drug Gradients following Intratympanic Application in Guinea Pigs

King

Hartsock²,

O’Leary³

et al. 2013

Audiol Neurotol

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Locally applied drugs can protect residual hearing following cochlear implantation. The influence of cochlear implantation on drug levels in the scala tympani (ST) after round window application was investigated in guinea pigs using the marker trimethylphenylammonium (TMPA) measured in real time with TMPA-selective microelectrodes. TMPA concentration in the upper basal turn of the ST rapidly increased during implantation and then declined due to cerebrospinal fluid entering the ST at the cochlear aqueduct and exiting at the cochleostomy. The TMPA increase was found to be caused by the cochleostomy drilling if the burr tip partially entered the ST. TMPA distribution in the second turn was less affected by implantation procedures. These findings show that basal turn drug levels may be changed during implantation and the changes may need to be considered in the interpretation of therapeutic effects of drugs in conjunction with implantation.

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Modification and comparison of minimally invasive cochleostomy techniques: A pilot study

Abstract: CO(2) laser can create cochleostomies comparable in operative time and intracochlear temperature to drilling while decreasing intracochlear sound levels. Further investigation is warranted to minimize trauma and maximize auditory function during cochleostomy.

Cited by 12 publications

References 7 publications

Überblick der Cochleostomieverfahren mit Fokussierung auf neue Laserablationstechniken

Überblick der Cochleostomieverfahren mit Fokussierung auf neue Laserablationstechniken

Noise Exposure on Human Cochlea During Cochleostomy Formation Using Conventional and a Hand Guided Robotic Drill

Influence of Cochleostomy and Cochlear Implant Insertion on Drug Gradients following Intratympanic Application in Guinea Pigs

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