Hearing preservation surgery in acoustic neuroma:
long-term results

Acta Otorhinolaryngol Ital. 2012 April; 32(2): 98–102.

PMCID: PMC3383081

Hearing preservation surgery in acoustic neuroma: long-term results

A. MAZZONI,¹ E. ZANOLETTI,² and V. CALABRESE³

¹ Neurosurgery Dept. Ospedali Riuniti, Bergamo, Italy; ENT Dept. Humanitas Milano-Rozzano, Italy; ENTOtochirurgia Dept., University of Padova, Italy;

² ENT-Otochirurgia Dept., University of Padua, Italy;

³ ENT Dept. Ospedale degli Infermi, Rimini, Italy

Address for correspondence: Antonio Mazzoni, via Statuto 25, 24128 Bergamo. Tel. +39 035 400413. E-mail: antonio.mazzoni/at/libero.it

Received March 3, 2012; Accepted March 21, 2012.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives License, which permits for noncommercial use, distribution, and reproduction in any digital medium, provided the original work is properly cited and is not altered in any way. For details, please refer to http://creativecommons.org/licenses/by-nc-nd/3.0/

This article has been corrected. See Acta Otorhinolaryngol Ital. 2012 October; 32(5): 340.

This article has been cited by other articles in PMC.

SUMMARY

Long-term hearing was examined in 200 patients operated on during 1976-2000 with removal of acoustic neuroma with a retrosigmoid approach and hearing preservation technique. Ninety-four cases preserved hearing, and 91 cases were followed-up for at least 6 years (range 6 to 21 years). Hearing was measured with the PTA 0.5 KHz to 4 KHz and the SDS, and followed the guidelines of the American Academy of Otolaryngology and Head Neck Surgery (AAOHNS classification). Change (or stability) of the short to long-term class was the main outcome measure. Postoperative hearing of class A and B was preserved at long-term and within class B in 87% of cases. A total of 13% presented a decrease of class to C or D. Small size and good preoperative good correlated with good short- and long-term hearing.

KEY WORDS: Hearing preservation surgery, Surgery for acoustic schwannoma, Long-term hearing results

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