1
|
Sacchetto L, Raguso G, Confuorto G, Arietti V, Torroni L, Marchioni D, Nocini R. A comparison between endoscopic and microscopic approaches for stapes surgery: experience of a tertiary referral center. Eur Arch Otorhinolaryngol 2024; 281:2959-2965. [PMID: 38158420 DOI: 10.1007/s00405-023-08411-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/08/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE Otosclerosis is a common ear disease causing ankylosis of the stapedio-vestibular joint and conductive hearing loss. Stapedoplasty is the most advisable surgical solution. The restoration of hearing depends on the condition of the patient and the surgery itself. The aim of our work was to compare the surgical and audiological results of stapedoplasty performed with endoscopic versus microscopic technique. METHODS This is a retrospective study of 254 patients treated with stapedoplasty with a microscopic approach (91/254) or with an endoscopic approach (163/254) between 2014 and 2021 at our tertiary referral center. Statistical significance of differences between the two methods was determined using the Mann-Whitney test for quantitative variables and the Wilcoxon matched-pairs signed-rank test for repeated measures. Categorical variables were assessed with Fisher's exact test. RESULTS Both techniques improved the hearing status of patients, with no statistically significant difference between them. There was also no statistically significant difference in reported complications between the two techniques. There is a statistical difference (p < 0.001) in operating time between the two techniques: the endoscopic technique had a mean operating time of 39 min versus 45 min for the microscopic technique. CONCLUSIONS The two techniques are comparable in terms of results and the choice depends on the surgeon's preferences and experience.
Collapse
Affiliation(s)
- L Sacchetto
- Unit of Otolaryngology, Head and Neck Department, University of Verona, P.Le L.A. Scuro 10, 37134, Verona, Italy
| | - G Raguso
- Unit of Otolaryngology, Head and Neck Department, University of Verona, P.Le L.A. Scuro 10, 37134, Verona, Italy
| | - G Confuorto
- Unit of Otolaryngology, Head and Neck Department, University of Verona, P.Le L.A. Scuro 10, 37134, Verona, Italy
| | - V Arietti
- Unit of Otolaryngology, Head and Neck Department, University of Verona, P.Le L.A. Scuro 10, 37134, Verona, Italy.
| | - L Torroni
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - D Marchioni
- Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Modena, Modena, Italy
| | - R Nocini
- Unit of Otolaryngology, Head and Neck Department, University of Verona, P.Le L.A. Scuro 10, 37134, Verona, Italy
| |
Collapse
|
2
|
Hodge S, Lopez IA, Cronkite A, House J, Matsui H, Ishiyama G, Ishiyama A. Dynamic Molecular Markers of Otosclerosis in the Human Cochlea. Ann Otol Rhinol Laryngol 2024; 133:390-399. [PMID: 38197255 PMCID: PMC11057044 DOI: 10.1177/00034894231225134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
OBJECTIVE To investigate the role and distribution of various molecular markers using immunohistochemistry and immunofluorescence to further elucidate and understand the pathogenesis of otosclerosis. METHODS Archival celloidin formalin-fixed 20-micron thick histologic sections from 7 patients diagnosed with otosclerosis were studied and compared to controls. Sections in the mid-modiolar region were immunoreacted with rabbit polyclonal antibodies against nidogen-1, β2-laminin, collagen-IX, BSP, and monoclonal antibodies against TGF β-1 and ubiquitin. Digital images were acquired using a high-resolution light and laser confocal microscope. RESULTS Nidogen-1, BSP, and collagen-IX were expressed in the otospongiotic regions, and to lesser extent, in the otosclerotic regions, the latter previously believed to be inactive. β2-laminin and ubiquitin were uniformly expressed in both otospongiotic and otosclerotic regions. There was a basal level of expression of all of these markers in the normal hearing and sensorineural hearing loss specimens utilized as control. TGF β -1, however, though present in the otosclerosis bones, was absent in the normal hearing and sensorineural hearing loss controls. CONCLUSIONS Our results propose that the activity and function of TGF-1 may play a key role in the development and pathogenesis of otosclerosis. Further studies utilizing a higher number of temporal bone specimens will be helpful for future analysis and to help decipher its role as a potential target in therapeutic interventions.
Collapse
Affiliation(s)
- Sarah Hodge
- Department of Otolaryngology—Head and Neck Surgery, Augusta University/Medical College of Georgia, Augusta, GA, USA
| | - Ivan A Lopez
- Department of Otolaryngology—Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, USA
| | - Alex Cronkite
- Department of Otolaryngology—Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, USA
| | | | | | - Gail Ishiyama
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Akira Ishiyama
- Department of Otolaryngology—Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, USA
| |
Collapse
|
3
|
Zhang Y, Tang Q, Xue R, Zhu X, Yang H, Gao Z. Analysis of the Genetic Characteristics of a Chinese Family With Otosclerosis. EAR, NOSE & THROAT JOURNAL 2021; 100:774S-780S. [PMID: 32126815 DOI: 10.1177/0145561320910627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Otosclerosis is a focal lesion of the inner ear. The role of genetic factors in the pathogenesis of otosclerosis has received increasing attention. We analyzed the clinical manifestations, inheritance pattern, and pathogenic genes in a family with otosclerosis. METHODS We collected clinical data and generated a family pedigree. High-throughput second-generation sequencing technology was used to identify candidate genes by performing whole-exome sequencing of 7 members of the family, and Sanger sequencing was performed to validate candidate gene mutations in the 7 family members. RESULTS Otosclerosis was characterized by autosomal dominant inheritance in this family. Whole-exome sequencing did not reveal mutation sites in known deafness-related genes. However, a c.2209A > G (p.T737A) mutation was detected in exon 6 of the SP1 gene, which is associated with the COL1A1 gene. This mutation was a pathogenic mutation, and Sanger sequencing confirmed that this mutation cosegregated with the clinical phenotype among the family members. CONCLUSIONS The pattern of otosclerosis in this family is consistent with autosomal dominant inheritance, and the SP1 gene, harboring the c.2209A > G (p.T737A) mutation in exon 6, may be the causative gene of otosclerosis in this family.
Collapse
Affiliation(s)
- Yongli Zhang
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| | - Qi Tang
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| | - Ruoyan Xue
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| | - Xiaohui Zhu
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| | - Hua Yang
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| | - Zhiqiang Gao
- Department of Otolaryngology, Chinese Academy of Medical Sciences and Peking Union Medical College, 34732Peking Union Medical College Hospital, Beijing, China
- Translational Medicine Center, 34732Peking Union Medical College Hospital, Beijing, China
| |
Collapse
|
4
|
Tucci DL, Doherty JK. Contributions of Contemporary Human Temporal Bone Histopathology to Clinical Otology. Otolaryngol Head Neck Surg 2019; 161:725-733. [PMID: 31359831 DOI: 10.1177/0194599819863368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Contemporary techniques have greatly enhanced the contributions of human temporal bone (HTB) histopathology to our understanding of the mechanisms of human otologic disease and disease treatment. Herein, we review some of the most salient contributions of this research to disease management. The field of HTB histopathology is challenged by limited resources as applies to trained investigators, infrastructure, and well-equipped laboratories. This research provides insights into clinical otology that cannot be obtained by any other means. Measures should be taken to preserve and extend the contributions of HTB research.
Collapse
Affiliation(s)
- Debara L Tucci
- Department of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, North Carolina, USA
| | - Joni K Doherty
- Rick and Tina Caruso Department of Otolaryngology-Head & Neck Surgery, Keck Medicine of University of Southern California, Los Angeles, California, USA
| |
Collapse
|
5
|
|
6
|
Abstract
In this review, we provide a description of the recent methods used for immunohistochemical staining of the human inner ear using formalin-fixed frozen, paraffin and celloidin-embedded sections. We also show the application of these immunohistochemical methods in auditory and vestibular endorgans microdissected from the human temporal bone. We compare the advantages and disadvantages of immunohistochemistry (IHC) in the different types of embedding media. IHC in frozen and paraffin-embedded sections yields a robust immunoreactive signal. Both frozen and paraffin sections would be the best alternative in the case where celloidin-embedding technique is not available. IHC in whole endorgans yields excellent results and can be used when desiring to detect regional variations of protein expression in the sensory epithelia. One advantage of microdissection is that the tissue is processed immediately and IHC can be made within 1 week of temporal bone collection. A second advantage of microdissection is the excellent preservation of both morphology and antigenicity. Using celloidin-embedded inner ear sections, we were able to detect several antigens by IHC and immunofluorescence using antigen retrieval methods. These techniques, previously applied only in animal models, allow for the study of numerous important proteins expressed in the human temporal bone potentially opening up a new field for future human inner ear research.
Collapse
|
7
|
Baysal E, Gulsen S, Aytac I, Celenk F, Ensari N, Taysi S, Binici H, Durucu C, Mumbuc S, Kanlikama M. Oxidative stress in otosclerosis. Redox Rep 2016; 22:235-239. [PMID: 27387094 DOI: 10.1080/13510002.2016.1207920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES Otosclerosis is a disease involving abnormal bone turnover in the human otic capsule that results in hearing loss. Several hypotheses have been suggested for the etiopathogenesis of otosclerosis; however, its etiology remains unclear. METHODS This study evaluated the correlation between otosclerosis and levels of paraoxonase-1 (PON1), arylesterase, total antioxidant status, total oxidant status (TOS), oxidative stress index (OSI), total sulfhydryl (-SH) groups, lipid hydroperoxide, and ceruloplasmin in the serum of otosclerosis patients and healthy subjects with respect to oxidative stress. RESULTS In our study, TOS and OSI levels were higher in the otosclerosis patients than in the controls. The PON1 levels showed that oxidative stress was severe, and as a result, antioxidants were consumed and depleted. DISCUSSION When an imbalance between oxygen free radical production and antioxidative defense mechanisms occurs, reactive oxygen species levels may increase, which in turn may damage cells and tissues through the peroxidation of phospholipid membrane structures. The body initially responds with increased antioxidant production, but if the oxidative stress is severe, decreased antioxidant levels may result. This study reports expression levels of oxidative stress species in otosclerosis patients.
Collapse
Affiliation(s)
- Elif Baysal
- a Faculty of Medicine, Otolaryngology Department , Inonu University , Malatya , Turkey
| | | | | | - Fatih Celenk
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Nuray Ensari
- e Antalya Education and Research Hospital , Antalya , Turkey
| | - Seyithan Taysi
- f Faculty of Medicine, Biochemistry Department , Gaziantep University , Gaziantep , Turkey
| | - Habib Binici
- g Faculty of Medicine, Otolaryngology Department , Harran University , Sanliurfa , Turkey
| | - Cengiz Durucu
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Semih Mumbuc
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Muzaffer Kanlikama
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| |
Collapse
|