Bibliographic Details
| Title: |
Predictors of Preoperative Tinnitus in Unilateral Sporadic Vestibular Schwannoma |
| Authors: |
Georgios Naros, Joey Sandritter, Marina Liebsch, Alex Ofori, Ahmed R. Rizk, Giulia Del Moro, Florian Ebner, Marcos Tatagiba |
| Source: |
Frontiers in Neurology, Vol 8 (2017) |
| Publisher Information: |
Frontiers Media S.A., 2017. |
| Publication Year: |
2017 |
| Collection: |
LCC:Neurology. Diseases of the nervous system |
| Subject Terms: |
tinnitus, vestibular schwannoma, predictors, binary logistic regression, hearing impairment, tumor size, Neurology. Diseases of the nervous system, RC346-429 |
| More Details: |
ObjectiveNearly two-thirds of patients with vestibular schwannoma (VS) are reporting a significantly impaired quality of life due to tinnitus. VS-associated tinnitus is attributed to an anatomical and physiological damage of the hearing nerve by displacing growth of the tumor. In contrast, the current pathophysiological concept of non-VS tinnitus hypothesizes a maladaptive neuroplasticity of the central nervous system to a (hidden) hearing impairment resulting in a subjective misperception. However, it is unclear whether this concept fits to VS-associated tinnitus. This study aims to determine the clinical predictors of VS-associated tinnitus to ascertain the compatibility of both pathophysiological concepts.MethodsThis retrospective study includes a group of 478 neurosurgical patients with unilateral sporadic VS evaluated preoperatively regarding the occurrence of ipsilateral tinnitus depending on different clinical factors, i.e., age, gender, tumor side, tumor size (T1–T4 according to the Hannover classification), and hearing impairment (Gardner–Robertson classification, GR1–5), using a binary logistic regression.Results61.8% of patients complain about a preoperative tinnitus. The binary logistic regression analysis identified male gender [OR 1.90 (1.25–2.75); p = 0.002] and hearing impairment GR3 [OR 1.90 (1.08–3.35); p = 0.026] and GR4 [OR 8.21 (2.29–29.50); p = 0.001] as positive predictors. In contrast, patients with large T4 tumors [OR 0.33 (0.13–0.86); p = 0.024] and complete hearing loss GR5 [OR 0.36 (0.15–0.84); p = 0.017] were less likely to develop a tinnitus. Yet, 60% of the patients with good clinical hearing (GR1) and 25% of patients with complete hearing loss (GR5) suffered from tinnitus.ConclusionThese data are good accordance with literature about non-VS tinnitus indicating hearing impairment as main risk factor. In contrast, complete hearing loss appears a negative predictor for tinnitus. For the first time, these findings indicate a non-linear relationship between hearing impairment and tinnitus in unilateral sporadic VS. Our results suggest a similar pathophysiology in VS-associated and non-VS tinnitus. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1664-2295 |
| Relation: |
http://journal.frontiersin.org/article/10.3389/fneur.2017.00378/full; https://doaj.org/toc/1664-2295 |
| DOI: |
10.3389/fneur.2017.00378 |
| Access URL: |
https://doaj.org/article/0e7bf3c812ac413f9c92ef8f2b3f73a0 |
| Accession Number: |
edsdoj.0e7bf3c812ac413f9c92ef8f2b3f73a0 |
| Database: |
Directory of Open Access Journals |
