Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2021
Underwater Endoscopic Ear Surgery for Closure of Cholesteatomatous Labyrinthine Fistula With Preservation of Auditory Function.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Yamauchi Daisuke, Honkura Yohei, Kawamura Yoshinobu, Shimizu Yuichi, Sunose Tomoki, Hara Yosuke, Ohta Jun, Suzuki Jun, Kawase Tetsuaki, Katori Yukio
Аннотация
OBJECTIVE: To analyze the outcomes of the underwater endoscopic ear surgery (UWEES) technique for closure of cholesteatomatous labyrinthine fistula (LF) with preservation of auditory function.
STUDY DESIGN: Retrospective case review study.
SETTING: Tertiary referral center.
PATIENTS: A total of 12 patients with cholesteatomatous LF.
INTERVENTION: Surgical method of closure using UWEES for cholesteatomatous LF to minimize inner ear damage. Artificial cerebrospinal fluid (CSF) was used as the perfusate, except for earlier cases when saline was employed.
MAIN OUTCOME MEASURES: Comparison of bone conductance hearing level (BCHL) before and after surgery. A change of BCHL less than 10 dB was defined as successful preservation of bone conductance hearing.
RESULTS: All cases of LF were treated successfully by closure using the UWEES technique. Seven cases were type I, one was type IIa, and four were type III according to the Milewski and Dornhoffer classification of LF. The average LF size was 3.1 mm (1-7 mm). Eleven patients were evaluated and their bone conductance hearing was well preserved in all of them (11/11). One patient was too young for preoperative evaluation of BCHL, but hearing preservation was verified 2 years later at the age of 6 years. Remarkably, none of the patients complained of vertigo, except for only a slight manifestation on postoperative day 1.
CONCLUSION: The UWEES technique was effective for closure of cholesteatomatous LF with preservation of auditory function.
STUDY DESIGN: Retrospective case review study.
SETTING: Tertiary referral center.
PATIENTS: A total of 12 patients with cholesteatomatous LF.
INTERVENTION: Surgical method of closure using UWEES for cholesteatomatous LF to minimize inner ear damage. Artificial cerebrospinal fluid (CSF) was used as the perfusate, except for earlier cases when saline was employed.
MAIN OUTCOME MEASURES: Comparison of bone conductance hearing level (BCHL) before and after surgery. A change of BCHL less than 10 dB was defined as successful preservation of bone conductance hearing.
RESULTS: All cases of LF were treated successfully by closure using the UWEES technique. Seven cases were type I, one was type IIa, and four were type III according to the Milewski and Dornhoffer classification of LF. The average LF size was 3.1 mm (1-7 mm). Eleven patients were evaluated and their bone conductance hearing was well preserved in all of them (11/11). One patient was too young for preoperative evaluation of BCHL, but hearing preservation was verified 2 years later at the age of 6 years. Remarkably, none of the patients complained of vertigo, except for only a slight manifestation on postoperative day 1.
CONCLUSION: The UWEES technique was effective for closure of cholesteatomatous LF with preservation of auditory function.