Simon D Charlett1, Nigel Biggs. 1. ENT Department, St. Vincent's Public Hospital, Darlinghurst, Sydney, New South Wales, Australia.
Abstract
OBJECTIVES: The aim of this study was to determine the prevalence of cochlear obliteration after labyrinthectomy. STUDY DESIGN: Retrospective review of medical records. SETTING: Tertiary referral center. PATIENTS: Sixty-five patients who had previously undergone resection of an acoustic neuroma through a translabyrinthine approach. INTERVENTION: The magnetic resonance studies were analyzed as part of the routine surveillance after tumor resection. MAIN OUTCOME MEASURE: To determine whether the cochlear lumen remained fluid filled. RESULTS: Sixty-five cochleas were examined. Forty-four cochleas were patent and, of the remaining 21, 9 were obliterated and 12 were partially obliterated. The average length of follow-up for the patent, partially obliterated, and obliterated cochlea groups was 47, 29, and 77 months, respectively. CONCLUSION: Obliteration of the cochlea, either partially or completely, occurs in approximately one-third of patients. Time elapsed after labyrinthectomy did not seem to be a predictor of cochlear obliteration.
OBJECTIVES: The aim of this study was to determine the prevalence of cochlear obliteration after labyrinthectomy. STUDY DESIGN: Retrospective review of medical records. SETTING: Tertiary referral center. PATIENTS: Sixty-five patients who had previously undergone resection of an acoustic neuroma through a translabyrinthine approach. INTERVENTION: The magnetic resonance studies were analyzed as part of the routine surveillance after tumor resection. MAIN OUTCOME MEASURE: To determine whether the cochlear lumen remained fluid filled. RESULTS: Sixty-five cochleas were examined. Forty-four cochleas were patent and, of the remaining 21, 9 were obliterated and 12 were partially obliterated. The average length of follow-up for the patent, partially obliterated, and obliterated cochlea groups was 47, 29, and 77 months, respectively. CONCLUSION: Obliteration of the cochlea, either partially or completely, occurs in approximately one-third of patients. Time elapsed after labyrinthectomy did not seem to be a predictor of cochlear obliteration.
Authors: B Delgado-Vargas; M Medina; R Polo; A Lloris; M Vaca; C Pérez; A Cordero; I Cobeta Journal: Acta Otorhinolaryngol Ital Date: 2017-11-30 Impact factor: 2.124
Authors: Isabel Sanchez-Cuadrado; Miryam Calvino; Jose Manuel Morales-Puebla; Javier Gavilán; Teresa Mato; Julio Peñarrocha; Maria Pilar Prim; Luis Lassaletta Journal: Front Neurol Date: 2021-06-17 Impact factor: 4.003