Differences in Postoperative Hearing Outcomes and Vertigo in Patients with Otosclerosis Treated with Laser-Assisted Stapedotomy versus Stapedectomy.
BACKGROUND
Otosclerosis is an abnormal bone growth in the otic capsule that can result in hearing loss. In this study, we compared postoperative hearing outcomes and vestibular symptoms between patients treated with laser-assisted stapedotomy versus stapedectomy.


METHODS
The medical charts of 99 ears treated with stapes surgery were retrospectively reviewed.


RESULTS
A stapedotomy, partial stapedectomy, or total stapedectomy was conducted in 77, 16, and 56 ears, respectively. The ears treated with partial- and total stapedectomies were unified into one stapedectomy group. The postoperative changes in the air-bone gap after stapedotomies were significantly larger than those after stapedectomies at 1, 2, and 4 kHz. The postoperative changes in the air conduction threshold after stapedotomies were significantly larger than those after stapedectomies at 1, 2, 4, and 8 kHz. The postoperative changes in the bone conduction threshold at 0.5, 1, 2, and 4 kHz did not differ between the groups. The postoperative vertigo duration after stapedotomies was significantly shorter than that after stapedectomies.


CONCLUSIONS
Surgery-induced sensorineural hearing losses were similar for stapedotomies and stapedectomies. However, stapedotomies were more effective and atraumatic than stapedectomies because of the better postoperative hearing results at middle and high frequencies and the shorter postoperative vertigo.
Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
Takashi
T
Sakamoto
Shu
S
Kikuta
Yayoi S
YS
Kikkawa
Katsuhiro
K
Tsutsumiuchi
Kaori
K
Kanaya
Yoko
Y
Fujimaki
Rumi
R
Ueha
Yuki
Y
Saito
Tatsuya
T
Yamasoba
D001844:Bone Conduction / Q000502:physiology; D005260:Female; D006309:Hearing / Q000502:physiology*; D006319:Hearing Loss, Sensorineural / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology*; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D053685:Laser Therapy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D010040:Otosclerosis / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology*; D012189:Retrospective Studies; D013201:Stapes Surgery / Q000009:adverse effects*; D014717:Vertigo / Q000453:epidemiology* / Q000209:etiology; D014724:Vestibular Function Tests