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For: Lin J, You N, Li X, Huang J, Wu H, Lu H, Hu J, Zhang J, Lou X. Atypical functional hierarchy contributed to the tinnitus symptoms in patients with vestibular schwannoma. Front Neurosci 2023;17:1084270. [PMID: 36875656 PMCID: PMC9982843 DOI: 10.3389/fnins.2023.1084270] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/03/2023] [Indexed: 02/22/2023] Open

For:	Lin J, You N, Li X, Huang J, Wu H, Lu H, Hu J, Zhang J, Lou X. Atypical functional hierarchy contributed to the tinnitus symptoms in patients with vestibular schwannoma. Front Neurosci 2023;17:1084270. [PMID: 36875656 PMCID: PMC9982843 DOI: 10.3389/fnins.2023.1084270] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/03/2023] [Indexed: 02/22/2023] Open

Number

Cited by Other Article(s)

King AM, Cooper JN, Oganezova K, Mittal J, McKenna K, Godur DA, Zalta M, Danesh AA, Mittal R, Eshraghi AA. Vestibular Schwannoma and Tinnitus: A Systematic Review of Microsurgery Compared to Gamma Knife Radiosurgery. J Clin Med 2024;13:3065. [PMID: 38892775 PMCID: PMC11173275 DOI: 10.3390/jcm13113065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/16/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open

Abstract

Background: Vestibular schwannoma (VS) is a benign tumor of the eighth cranial nerve formed from neoplastic Schwann cells. Although VS can cause a variety of symptoms, tinnitus is one of the most distressing symptoms for patients and can greatly impact quality of life. The objective of this systematic review is to comprehensively examine and compare the outcomes related to tinnitus in patients undergoing treatment for VS. Specifically, it evaluates patient experiences with tinnitus following the removal of VS using the various surgical approaches of traditional surgical resection and gamma knife radiosurgery (GKS). By delving into various aspects such as the severity of tinnitus post-treatment, the duration of symptom relief, patient quality of life, new onset of tinnitus after VS treatment, and any potential complications or side effects, this review aims to provide a detailed analysis of VS treatment on tinnitus outcomes. Methods: Following PRISMA guidelines, articles were included from PubMed, Science Direct, Scopus, and EMBASE. Quality assessment and risk of bias analysis were performed using a ROBINS-I tool. Results: Although VS-associated tinnitus is variable in its intensity and persistence post-resection, there was a trend towards a decreased tinnitus burden in patients. Irrespective of the surgical approach or the treatment with GKS, there were cases of persistent or worsened tinnitus within the studied cohorts. Conclusion: The findings of this systematic review highlight the complex relationship between VS resection and tinnitus outcomes. These findings underscore the need for individualized patient counseling and tailored treatment approaches in managing VS-associated tinnitus. The findings of this systematic review may help in guiding clinicians towards making more informed and personalized healthcare decisions. Further studies must be completed to fill gaps in the current literature.

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Affiliation(s)

Ava M. King Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Jaimee N. Cooper Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.) School of Medicine, New York Medical College, Valhalla, NY 10595, USA
Karina Oganezova Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Jeenu Mittal Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Keelin McKenna Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Dimitri A. Godur Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Max Zalta Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Ali A. Danesh Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.) Department of Communication Sciences and Disorders, Florida Atlantic University, Boca Raton, FL 33431, USA Department of Integrated Medical Sciences, Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
Rahul Mittal Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.)
Adrien A. Eshraghi Department of Otolaryngology, Hearing Research and Cochlear Implant Laboratory, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (A.M.K.); (J.N.C.); (J.M.); (K.M.); (D.A.G.); (M.Z.); (A.A.D.); (R.M.) Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA Department of Biomedical Engineering, University of Miami, Coral Gables, FL 33143, USA

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Huang J, Lin J, You N, Li X, Xiong Y, Wang X, Lu H, Li C, Li R, Hu J, Zhang J, Lou X. Tumor characteristics, brain functional activity, and connectivity of tinnitus in patients with vestibular schwannoma: a pilot study. Quant Imaging Med Surg 2024;14:1392-1405. [PMID: 38415156 PMCID: PMC10895126 DOI: 10.21037/qims-23-721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 11/16/2023] [Indexed: 02/29/2024]

Abstract

Background

The mechanism underlying tinnitus remains unclear, and when it coexists with vestibular schwannoma (VS), it can significantly diminish the quality of life for affected patients. This study aimed to determine the correlation between preoperative clinical characteristics of VS, postoperative changes in brain function, and tinnitus in patients with VS through a cohort study.

Methods

We collected data from 80 patients with VS preoperatively and 28 patients with VS preoperatively and postoperatively, and recruited 28 healthy controls. We used Chi-squared tests and unpaired t-tests to identify clinical characteristics with a significant preoperative effect. We used paired t-tests to identify brain regions where patients demonstrated significant changes in amplitude of low-frequency fluctuation (ALFF) and regional homogeneity (ReHo) postoperatively. Tinnitus severity was evaluated using the Tinnitus Handicap Inventory (THI) and Visual Analogue Scale (VAS). Pearson correlation coefficients were applied to assess the relationship between the changes in ALFF and ReHo and the changes in THI and VAS scores postoperatively. We also conducted seed- and region of interest (ROI)-based functional connectivity (FC) analyses.

Results

Before surgery, patients with VS with tinnitus (n=49) had smaller tumors (t=3.293; P<0.001), more solid tumor (χ2=4.559; P=0.033), and less extrusion into the cerebellum brain stem (χ2=10.345; P=0.001) than those without tinnitus (n=31). After surgery, the 28 patients with VS showed a significant reduction in ALFF in the left Cerebellum_Crus2 (a lobule in the cerebellum anatomy) (ROI 1) and a significant reduction in ReHo in the left Cerebellum_Crus1 (a lobule in the cerebellum anatomy) (ROI 2) and the right precuneus (ROI 3). Conversely, ReHo was significantly increased in the right precentral gyrus (ROI 4) [cluster-level P value family-wise error (PFWE) <0.05]. The changes in ALFF values were negatively correlated with changes in the VAS score (r=-0.32; P<0.05). The FC strengths of patients between ROI 2 and the left and right posterior cingulate gyrus were significantly decreased postoperatively [false discovery rate (FDR) correction; P<0.05].

Conclusions

Preoperative tinnitus in patients with VS may be influenced by tumor characteristics. The functional activities of brain regions are possibly altered postoperatively, which may be involved in the maintenance of postoperative tinnitus. Notably, the changes in ALFF are correlated with tinnitus.

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