Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2010
Third window vibroplasty: an alternative in surgical treatment of tympanosclerotic obliteration of the oval and round window niche.
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Pau Hans Wilhelm, Just Tino
Аннотация
OBJECTIVE: To describe a new technique in surgical treatment of obliterative tympanosclerosis by applying a floating mass transducer (FMT) to a third window.
PATIENT: A 64-year-old woman with a severe combined hearing loss due to tympanosclerosis received a third window vibroplasty.
INTERVENTION: A mastoidectomy and a posterior tympanotomy via the large facial recess were performed. The promontory was exposed by a transcanal approach. The third window was performed anterior inferior to the round window. The membranous cochlea was left intact. The FMT was gently pushed into the perichondrium-coated cochlear window. All other surgical steps were the same as in conventional FMT application.
RESULTS: Preliminary data of this report reveal that vibroplasty with coupling of the FMT directly to a third window leads to similar audiological results compared with the conventional coupling of the FMT on the round window niche.
CONCLUSION: The presented case demonstrates the applicability of a third window vibroplasty in obliterative tympanosclerosis. Further studies will show if our assumption of a reduced risk for inner ear trauma is justified or not.
PATIENT: A 64-year-old woman with a severe combined hearing loss due to tympanosclerosis received a third window vibroplasty.
INTERVENTION: A mastoidectomy and a posterior tympanotomy via the large facial recess were performed. The promontory was exposed by a transcanal approach. The third window was performed anterior inferior to the round window. The membranous cochlea was left intact. The FMT was gently pushed into the perichondrium-coated cochlear window. All other surgical steps were the same as in conventional FMT application.
RESULTS: Preliminary data of this report reveal that vibroplasty with coupling of the FMT directly to a third window leads to similar audiological results compared with the conventional coupling of the FMT on the round window niche.
CONCLUSION: The presented case demonstrates the applicability of a third window vibroplasty in obliterative tympanosclerosis. Further studies will show if our assumption of a reduced risk for inner ear trauma is justified or not.