Stapedius Reflex Threshold in Cochlear Implant Patients

Stephan, K.; Welzl-Müller, K; Stiglbrunner, H

doi:10.3109/00206098809081593

Cited by 34 publications

(20 citation statements)

References 5 publications

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“…Oliver & Chmiel, 1988). Their findings were confirmed by Stephan, Welzl-Miiller, and Stiglbrunner ( 1988) who investigated the stapedius reflex in patients using the 3M Vienna device. The aim of our study was to validate these relationships, to examine the use of stapedius reflex evaluations for objective setting of speech processors, and to investigate the influence of different stimulation places and bipolar configurations.…”

supporting

confidence: 65%

Electrically Elicited Stapedius Reflex in Cochlear Implant Patients

1990

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Electrically elicited stapedius reflexes were examined in 25 deaf patients who had received a 22-channel Clark/ NUCLEUS cochlear implant. Using an apical, a medial and a basal electrode pair, different stimulation positions within the cochlea and different stimulation modes were examined. For threshold determination, 10 reflexes were averaged with reflexes recorded on the nonoperated side. Reflexes were elicited in 19 of the 25 patients (76%); a saturation of reflex amplitude could be recorded in 14 (56%) subjects. In two additional cases, a reflex could be obtained by increasing the bipolar stimulation width (changing the stimulation mode). In comparison with different stimulation positions within the cochlea, the stimulation of apical electrodes produced more distinctive reflexes and required lower current levels. An increase in the bipolar stimulation width also decreased the intensity required for stapedius reflex threshold. Our data suggest that stapedius reflex evaluation may be a useful tool for speech processor fitting.

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supporting

confidence: 65%

Electrically Elicited Stapedius Reflex in Cochlear Implant Patients

1990

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“…It has already been shown that comfortably loud levels are significantly correlated with the threshold of the electrically evoked stapedius reflex (ESR) (Bresnihan, Norman, Scott, & Viani, 2001;Shallop & Ash, 1995) and that the ESR can be measured by using acoustic immittance (Shallop, 1993;Stephan, Welzl-Muller, & Stiglbrunner, 1988), by electromyography (Almqvist, Harris, & Shallop, 2000;Clement, Carter, & Kipke, 2002), or by visual inspection of the stapedius muscle during implant surgery (Almqvist et al, 2000;Lindstrom & Bredberg, 1997). ESR thresholds can be used to set maximum stimulation levels in adult cochlear implant users without compromising speech perception abilities (Spivak, Chute, Popp, & Parisier, 1994).…”

Section: Conclusion: a Combination Of Nonbehavioral Measures Can Aidmentioning

confidence: 97%

Toward a Battery of Behavioral and Objective Measures to Achieve Optimal Cochlear Implant Stimulation Levels in Children

2004

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A combination of nonbehavioral measures can aid in the determination of useful cochlear implant stimulation levels, particularly in young children and infants with limited auditory experience. These measures can be made in the operating room and can be repeated after surgery when needed. Correction factors to predict threshold stimulation levels should be based on ECAP thresholds or EABR thresholds if necessary. Correction factors should be made for at least one apical and mid-array electrode, should take into account the age of the child, and may have to be revised during the first year of implant use. Maximum stimulation levels may be best determined by using the ESR.

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“…Bunlardan biri elektriksel olarak ortaya çıkan stapes refleks eşiği (ESRT), diğeri elektriksel olarak oluşan birleşik aksiyon potansiyeli (ECAP)' dir. ESRT ağrı olmaksızın tolere edilebilen en yüksek ses seviyesini, ECAP ise ses olarak algılanan en düşük ses seviyesini belirlemektedir [25][26][27][28] . 29 .…”

Section: İşitme Ile Monitorizasyonlar Ve Anesteziklerin Etkisiunclassified

Kohlear İmplant Cerrahisi ve Anestezi

Biricik¹

2015

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Cochlear implant, converting mechanical sound energy into electrical signal, is a device that can enables to detection of sounds from cochlea. Cochlear implantation is the name of cochlear implants to be placed in the cochlea. This procedure brings up some difficulties in terms of anesthesia and surgery. Both range of patients population and surgical complications make different implantation applications. Besides age group of children who underwent surgery, this procedure can be applied to all age groups. During surgery, anesthesia technics which allow the immobil bloodness field and fascial nerve neuromonitorisation must be performed. During recovery period from surgery, it is important that patient's head movement must be kept slow and controlled for preventing implant replacement. Also in this period, neuromuscular blocking must be fully reversed for fascial nerve examination. In this article, preoperative preparation, anesthetic management and surgical aspects of cochlear implantation surgery were reviewed. Key words: Cochlear implant surgery, cochlear implantation, anesthesia ÖZET Kohlear implant, mekanik ses enerjisini elektrik sinyallerine dönüştürüp, kohleadan seslerin algılanmasını sağlayan elektronik bir cihazdır. Kohlear implantasyon ise kohlear implantın kohleaya yerleştirilmesine verilen isimdir. Bu uygulama beraberinde anestezi ve cerrahi açısından bazı zorluklar getirmektedir. Gerek hasta popülasyonunun yaş aralığı gerek cerrahi komplikasyonlar implantasyon uygulamalarını farklı kılmaktadır. Cerrahi uygulanan yaş grubu genellikle çocuk olmakla birlikte her yaş grubuna işitme rehabilitasyonu amacıyla uygulanabilmektedir. Cerrahi sırasında immobilizasyon yanında kansız bir cerrahi saha ve fasiyal sinirin nöromonitörizasyonuna izin veren anestezi teknikleri uygulanmalıdır. Cerrahiden uyanma döneminde hastanın baş hareketlerinin az ve kontrollü olması implantın yerinden kaymasını önlemek açısından önemlidir. Yine operasyondan uyanma aşamasında

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Stapedius Reflex Threshold in Cochlear Implant Patients

Cited by 34 publications

References 5 publications

Electrically Elicited Stapedius Reflex in Cochlear Implant Patients

Electrically Elicited Stapedius Reflex in Cochlear Implant Patients

Toward a Battery of Behavioral and Objective Measures to Achieve Optimal Cochlear Implant Stimulation Levels in Children

Kohlear İmplant Cerrahisi ve Anestezi

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