Subjective visual vertical in patients with ear surgery

• Published in: Acta oto-laryngologica Vol. 130; no. 5; pp. 576 - 582
• Main Authors: Ogawa, Yasuo, Hayashi, Mami, Otsuka, Koji, Shimizu, Shigetaka, Inagaki, Taro, Hagiwara, Akira, Yamada, Tetsuya, Suzuki, Mamoru
• Format: Journal Article
• Language: English
• Published: Stockholm Informa UK Ltd 01-05-2010; Taylor & Francis; Informa
• Subjects: Adolescent; Adult; Aged; Aged, 80 and over; Biological and medical sciences; Child; Child, Preschool; Female; Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics; Humans; Male; Medical sciences; Middle Aged; Otolithic Membrane - physiopathology; otoliths; Otologic Surgical Procedures - adverse effects; Otorhinolaryngology. Stomatology; Postoperative Complications - diagnosis; Postoperative Complications - physiopathology; Space Perception; subjective visual horizontal; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Surgery of the ear, the auditive nerve and the facial nerve; SVH; tympanoplasty; Utriculus; vestibular; Vestibular Function Tests; Young Adult; Human; Horizontal; SVH; ENT; vestibular; Treatment; subjective visual horizontal; Tympanoplasty; Surgery; Otolith; Ear; otoliths; Utriculus; Utricle
• ISSN: 0001-6489; 1651-2251
• DOI: 10.3109/00016480903352967

Conclusion: Dysequilibrium is one of the most important side effects of ear surgery. The subjective visual vertical can be used as a good indicator for the evaluation of otolithic function in patients with ear surgery. Objective: To investigate the influence of various types of ear surgery on the otolithic organs. Methods: Seventy-one patients underwent ear surgery. Subjective visual vertical (SVV) test was performed before and after ear surgery. We investigated the directional changes of SVV before and after the ear surgery. Results: The postoperative SVV of two patients who underwent translabyrinthine removal of vestibular schwannoma shifted toward the operated side, but following other surgical procedures the SVV tended to shift toward the healthy side.