Results
The highest threshold in the tumor´s ear was found at 8000 Hz, and the highest interaural difference at 4000 Hz. The percentage of patients presenting normal hearing and sudden hearing loss was 2.5% and 9%, respectively. No significant association was found between tumor size and hearing loss, preoperative facial palsy or Vth cranial nerve deficit.
Clinical tumoral size dissociation in acoustic neuroma: reality o measure distortion?
 
  Key words
 
 
  
   Acoustic neuroma
  
 
 
  
   Hearing loss
  
 
 
  
   Tumor size
  
 
 
  
   Facial palsy
  
 
Abstract
 Introduction
In this study we have analyzed (i) the audiometric frequencies more often affected in acoustic neuroma (AN), (ii) the percentage of patients presenting normal hearing and those with <dis>sudden hearing loss</dis>, (iii) if there is a correlation between tumor size and <dis>hearing loss</dis>, and (iv) the relationship between clinical and radiological parameters and audiological data.
Methods and Material
Retrospective study of 81 patients undergoing surgical removal of a sporadic AN.
Results
The highest threshold in the tumor´s ear was found at 8000 Hz, and the highest interaural difference at 4000 Hz.
The percentage of patients presenting normal hearing and <dis>sudden hearing loss</dis> was 2.5% and 9%, respectively.
No significant association was found between tumor size and <dis>hearing loss</dis>, preoperative facial palsy or Vth cranial nerve deficit.
There was a significant association between the degree of <dis>hearing loss</dis> and Vth cranial nerve deficit, and between <dis>hearing loss</dis> and preoperative facial palsy.
Conclusions
The association between <dis>hearing loss</dis> and Vth cranial nerve deficit, and between <dis>hearing loss</dis> and preoperative facial palsy is independent the size of the tumour.
Abstract
 Introduction
In this study we have analyzed (i) the audiometric frequencies more often affected in acoustic neuroma (AN), (ii) the percentage of patients presenting normal hearing and those with sudden hearing loss, (iii) if there is a correlation between tumor size and hearing loss, and (iv) the relationship between clinical and radiological parameters and audiological data.
Methods and Material
Retrospective study of 81 patients undergoing surgical removal of a sporadic AN.
Results
The highest threshold in the tumor´s ear was found at 8000 Hz, and the highest interaural difference at 4000 Hz.
The percentage of patients presenting normal hearing and sudden hearing loss was 2.5% and 9%, respectively.
No significant association was found between tumor size and hearing loss, preoperative facial palsy or Vth cranial nerve deficit.
There was a significant association between the degree of hearing loss and Vth cranial nerve deficit, and between hearing loss and preoperative facial palsy.
Conclusions
The association between hearing loss and Vth cranial nerve deficit, and between hearing loss and preoperative facial palsy is independent the size of the tumour.
Results
The highest threshold in the tumor´s ear was found at 8000 Hz, and the highest interaural difference at 4000 Hz. The percentage of patients presenting normal hearing and <dis>sudden hearing loss</dis> was 2.5% and 9%, respectively. No significant association was found between tumor size and <dis>hearing loss</dis>, preoperative facial palsy or Vth cranial nerve deficit.
sudden hearing loss
DISABILITY
hearing loss
DISABILITY