P Warrick1, M Bance, J Rutka. 1. Department of Otolaryngology, The Toronto Hospital, Ontario, Canada.
Abstract
OBJECTIVE: To determine the risk of loss of useful hearing in the absence of tumor growth among patients undergoing conventional management of acoustic neuroma. SETTING: Tertiary referral center. STUDY DESIGN: Retrospective case review. PATIENTS: Ten patients (12 ears) were identified having a period of no tumor growth of at least 6 months (19.0+/-12.8 months), and for whom at least two audiograms were available in this period. INTERVENTIONS: None. MAIN OUTCOME MEASURES: Loss of useful hearing defined using 70% speech discrimination score (SDS) and 30 dB pure tone average (PTA) (70/30), or 50% SD and 50 dB PTA (50/50) criteria. RESULTS: Three of seven (43%) ears with useful hearing using the 70/30 rule and two of eight ears (25%) using the 50/50 rule lost this useful hearing. CONCLUSIONS: There is a significant risk of useful hearing loss with conservative management of nongrowing acoustic neuromas.
OBJECTIVE: To determine the risk of loss of useful hearing in the absence of tumor growth among patients undergoing conventional management of acoustic neuroma. SETTING: Tertiary referral center. STUDY DESIGN: Retrospective case review. PATIENTS: Ten patients (12 ears) were identified having a period of no tumor growth of at least 6 months (19.0+/-12.8 months), and for whom at least two audiograms were available in this period. INTERVENTIONS: None. MAIN OUTCOME MEASURES: Loss of useful hearing defined using 70% speech discrimination score (SDS) and 30 dB pure tone average (PTA) (70/30), or 50% SD and 50 dB PTA (50/50) criteria. RESULTS: Three of seven (43%) ears with useful hearing using the 70/30 rule and two of eight ears (25%) using the 50/50 rule lost this useful hearing. CONCLUSIONS: There is a significant risk of useful hearing loss with conservative management of nongrowing acoustic neuromas.
Authors: Georgios Kontorinis; Jaya Nichani; Simon R Freeman; Scott A Rutherford; Samantha Mills; Andrew T King; Deborah Mawman; Sue Huson; Martin O'Driscoll; D Gareth Evans; Simon K W Lloyd Journal: Eur Arch Otorhinolaryngol Date: 2014-10-08 Impact factor: 2.503
Authors: Janneke C J M Artz; Ferdinand C A Timmer; Jef J S Mulder; Cor W R J Cremers; Kees Graamans Journal: Eur Arch Otorhinolaryngol Date: 2008-08-13 Impact factor: 2.503