The late results of 4000 Hz frequency bone conduction after tympanoplasty
Journal Title: Otolaryngologia Polska - Year 2017, Vol 71, Issue 5
Abstract
<br/><b>Introduction:</b> Surgical treatment of conductive hearing loss runs the risk of damage to the inner ear in the mechanism of acoustic trauma. <br/><b>Aim:</b> The aim of this study was to evaluate the function of the organ of Corti, expressed as bone conduction threshold at the frequency of 4000 Hz for selected operations: mastoidectomy and canal-wall-down procedure. <br/><b>Material and methods:</b> The material was collected from patients with chronic otitis media in the Department of Otolaryngology and ENT Oncology, Collegium Medicum of Nicolaus Copernicus University in Bydgoszcz in 2004–2009. All patients were examined with pure tone audiometry threshold before surgery and at least three years after surgery. The analyzed group of patients was divided into subgroups depending on the type of operation according to To classification and procedures for resection: mastoidectomy and canal-wall-down procedure. The results were statistically analyzed. <br/><b>Results:</b> In the analyzed period of three years after surgery there was no statistically significant difference between groups, although there were higher values for tympanoplasty type 1 with mastoidectomy compared with tympanoplasty type 1 without mastoidectomy - respectively 25.67 dB and 18.53 dB. In the study, there was no statistically significant the difference in bone conduction threshold for frequency 4000 Hz within the type 2 tympanoplasty according to Tosa comparing canal wall-up and canal-wall-down procedure. <br/><b>Conclusions:</b> Mastoidectomy or canal-wall-down procedure do not affect the bone conduction threshold for a frequency of 4000 Hz after tympanoplasty in long-term observation.<br/><br/>
Authors and Affiliations
Joanna Janiak-Kiszka, Wojciech Kaźmierczak
Keywords
Related Articles
- EP ID EP228429
- DOI 10.5604/01.3001.0010.5312
- Views 152
- Downloads 0
Niedorozwój nosa - etiologia, diagnoza i leczenie
Wprowadzenie. Obraz kliniczny wrodzonego niedorozwoju nosa jest bardzo polimorficzny. Mogą występować częściowe zaburzenia rozwoju, poprzez połowiczy niedorozwój nosa aż do całkowitego braku nosa (arhinia). Celem pracy...
Medialization thyroplasty in glottis insufficiency due to unilateral vocal fold paralysis and after laser cordectomies – preliminary report
Medialization thyroplasty (type I) is surgical procedure performed on the thyroid cartilage. The major indication for this surgery is significant glottis insufficiency due to unilateral vocal fold paresis. However the pr...
Wewnątrzczaszkowe powikłania zatokopochodne u pacjentów Oddziału Otolaryngologicznego Szpitala Wojewódzkiego w Olsztynie leczonych w latach 2004–2007
Sinusitis is common disease. However intracranial complications of sinusitis are rare, but they are still a serious problem that results in high mortality. Diagnostic advantages of CT scanning and magnetic resonance imag...
Late phoniatric results of treatment of patients with cleft palate operated on by one surgeon
Introduction. The aim of the study was the assessment of the late speech results the cleft palate patients. Material and methodic. From January 1987 to December 1996 the first author performed 268 cleft palate surgeries....
The rare case of metastasis to lumbar part of spinal column from laryngeal cancer
A rare case of distant metastasis to spinal column – lumbar vertebra (L5) – from laryngeal cancer was reported. It must be noted that in 10 % of cases metastases to vertebral column are fi rst symptom of a neoplastic dis...