The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
M Rusta - One of the best experts on this subject based on the ideXlab platform.
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Iranian Red Crescent Medical Journal Iran Red Crescent Med J 2011; 13(8):582-585 ©Iranian Red Crescent Medical Journal SHORT COMMUNICATION The Prevalence of Labyrinthine Fistula in Chronic Otitis Media Surgery in Shiraz, Southern Iran
2016Co-Authors: Ah Faramarzi, St Heydari, M RustaAbstract:Background: The incidence of Fistulas found during the surgery for chronic otitis media with cholesteatoma has been reported in a wide range in different geographical areas. This study aims to find the prevalence of labyrin-thine Fistula in the south of Iran. Methods: A prospective cross sectional study of 787 (504 ears belong to 462 patients) consecutive tympano-plasty with or without mastoidectomy for chronic otitis media was performed. Data on preoperative clinical and preoperative and postoperative hearing status and intraoperative findings were analyzed. Results: A Labyrinthine Fistula was found at surgery in 24 (4.7%) ears of the total 504 ears belonging to 462 patients undergoing surgery for chronic otitis media. Location of the Fistula was the lateral semicircular canal in 23, posterior semicircular canal in 1 and promontory in 1 subject. There was a statistically significant difference in preoperative and postoperative AC threshold in 500-3000 Hz frequency and ABG 500-3000 Hz, but there was no statistically significant difference in the other variables. Conclusion: Regarding postoperative hearing outcome in the Labyrinthine Fistula surgery, it seems that there is no universal method of reporting of hearing results. Past hearing evaluation methods in the literature have been often poorly comparable, based on different methodology
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Iranian Red Crescent Medical Journal The Prevalence of Labyrinthine Fistula in Chronic Otitis Media Surgery
2010Co-Authors: In Shiraz, Abolhassan Faramarzi, Southern Iran, St Heydari, M RustaAbstract:Background: The incidence of Fistulas found during surgery for chronic otitis media with cholesteatoma has been re-ported to vary widely in different geographical areas. To identify the prevalence of Labyrinthine Fistula in the south of Iran. Patients and Methods: This was a prospective cross-sectional study of 787 consecutive tympanoplasty surgeries with or without mastoidectomy for chronic otitis media (504 ears in 462 patients). The preoperative clinical data, preopera-tive and postoperative hearing status, and intraoperative findings were analyzed. Results: A Labyrinthine Fistula was found at surgery in 24 (4.7 %) of 504 ears in the 462 patients undergoing surgery for chronic otitis media. The location of the Fistula was the lateral semicircular canal in 23 ears, posterior semicircular canal in 1 ear, and promontory in one ear. There was a statistically significant difference in preoperative and postopera-tive Air Conduction (AC) threshold in 500–3000 Hz frequency and Air-Bone Gap ABG) 500–3000 Hz, but there were no statistically significant differences in the other variables. Conclusions: There is no universal method of reporting hearing outcomes in Labyrinthine Fistula surgery. Hearing eval-uation methods in the literature are poorly comparable due to the usage of different methodologies
Tomonori Takasaka - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Labyrinthine Fistula with interruption of the semicircular canals
Archives of otolaryngology--head & neck surgery, 1995Co-Authors: Toshimitsu Kobayashi, Toshinori Sato, Masaru Toshima, Masako Ishidoya, Mitsuko Suetake, Tomonori TakasakaAbstract:Evaluation of postoperative hearing acuity and equilibrium was performed in eight patients with Labyrinthine Fistula caused by cholesteatoma, in which at least one of the semicircular canals (five cases, lateral; one case, superior; one case, posterior; and one case, both lateral and superior) was interrupted during eradication of the matrix and granulations from the semicircular canals. The interrupted semicircular canals were obliterated firmly with autologous materials such as fascia, perichondrium, bone chips, and cartilage. The observation period ranged from 9 months to 3.3 years. Postoperative hearing was unaltered or improved in seven patients, and decreased by 12 dB in one patient. Postoperative disequilibrium lasting more than 2 weeks was experienced in two patients and disappeared at the second and fifth postoperative months, respectively. Relief from Fistula symptoms was complete after surgery, indicating adequacy of this procedure in one-stage open-method tympanoplasty. The present study indicates that manipulation of the semicircular canal with awareness can be conducted without damaging the cochlear function, and that the treatment of Labyrinthine Fistulas should be performed very carefully but not so conservatively as to lead to future problems. In some cases of deep Fistulas of the semicircular canals, interruption and/or obliteration of the semicircular canals can be the most proper procedure. (Arch Otolaryngol Head Neck Surg. 1995;121:469-475)
Liang Fenghe - One of the best experts on this subject based on the ideXlab platform.
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Surgical outcome of otitis media with Labyrinthine Fistula
Chinese Archives of Otolaryngology-head and Neck Surgery, 2013Co-Authors: Liang FengheAbstract:OBJECTIVE To study clinical features,treatment and postoperative hearing change in 123 cases of chronic suppurative otitis media with Labyrinthine Fistula.METHODS 123 cases of chronic suppurative otitis media with Labyrinthine Fistula hospitalized from January 2005 to January 2010 were retrospectively analysed.88 cases were treated by open radical mastoidectomy and tympanoplasty,the other 35 cases were treated by radical mastoidectomy.RESULTS 123 cases were ear pus history,subjective hearing loss was found in 120 patients(97.6%),preoperative pure-tone audiometry of 0.5-4 kHz showed average bone conduction threshold of 29.1 dB and air conduction hearing thresholds of 53.2 dB in 123 cases,total deafness was found in 3 cases.There were 107 patients with vertigo(87.0%),73 cases(59.3%)with positive Fistula test,Labyrinthine Fistula was found in 110(89.4%)cases by preoperative CT scan of the temporal bone.CONCLUSION The Labyrinthine Fistula can be diagnosed by high-resolution temporal bone CT and intraoperative exploration.The semicircular canal Fistula lesions can be removed completely with reconstruction of auditory ossicular chain at the same time.The mean bone conduction hearing thresholds did not change significantly after operation.
Abolhassan Faramarzi - One of the best experts on this subject based on the ideXlab platform.
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The prevalence of Labyrinthine Fistula in chronic otitis media surgery in shiraz, southern iran.
Iranian Red Crescent medical journal, 2011Co-Authors: Abolhassan Faramarzi, Seyed Taghi Heydari, Rusta MAbstract:Background: The incidence of Fistulas found during surgery for chronic otitis media with cholesteatoma has been reported to vary widely in different geographical areas. To identify the prevalence of Labyrinthine Fistula in the south of Iran. Patients and Methods: This was a prospective cross-sectional study of 787 consecutive tympanoplasty surgeries with or without mastoidectomy for chronic otitis media (504 ears in 462 patients). The preoperative clinical data, preoperative and postoperative hearing status, and intraoperative findings were analyzed. Results: A Labyrinthine Fistula was found at surgery in 24 (4.7 %) of 504 ears in the 462 patients undergoing surgery for chronic otitis media. The location of the Fistula was the lateral semicircular canal in 23 ears, posterior semicircular canal in 1 ear, and promontory in one ear. There was a statistically significant difference in preoperative and postoperative Air Conduction (AC) threshold in 500–3000 Hz frequency and Air-Bone Gap ABG) 500–3000 Hz, but there were no statistically significant differences in the other variables. Conclusions: There is no universal method of reporting hearing outcomes in Labyrinthine Fistula surgery. Hearing evaluation methods in the literature are poorly comparable due to the usage of different methodologies.
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Iranian Red Crescent Medical Journal The Prevalence of Labyrinthine Fistula in Chronic Otitis Media Surgery
2010Co-Authors: In Shiraz, Abolhassan Faramarzi, Southern Iran, St Heydari, M RustaAbstract:Background: The incidence of Fistulas found during surgery for chronic otitis media with cholesteatoma has been re-ported to vary widely in different geographical areas. To identify the prevalence of Labyrinthine Fistula in the south of Iran. Patients and Methods: This was a prospective cross-sectional study of 787 consecutive tympanoplasty surgeries with or without mastoidectomy for chronic otitis media (504 ears in 462 patients). The preoperative clinical data, preopera-tive and postoperative hearing status, and intraoperative findings were analyzed. Results: A Labyrinthine Fistula was found at surgery in 24 (4.7 %) of 504 ears in the 462 patients undergoing surgery for chronic otitis media. The location of the Fistula was the lateral semicircular canal in 23 ears, posterior semicircular canal in 1 ear, and promontory in one ear. There was a statistically significant difference in preoperative and postopera-tive Air Conduction (AC) threshold in 500–3000 Hz frequency and Air-Bone Gap ABG) 500–3000 Hz, but there were no statistically significant differences in the other variables. Conclusions: There is no universal method of reporting hearing outcomes in Labyrinthine Fistula surgery. Hearing eval-uation methods in the literature are poorly comparable due to the usage of different methodologies
Toshimitsu Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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Treatment of Labyrinthine Fistula with interruption of the semicircular canals
Archives of otolaryngology--head & neck surgery, 1995Co-Authors: Toshimitsu Kobayashi, Toshinori Sato, Masaru Toshima, Masako Ishidoya, Mitsuko Suetake, Tomonori TakasakaAbstract:Evaluation of postoperative hearing acuity and equilibrium was performed in eight patients with Labyrinthine Fistula caused by cholesteatoma, in which at least one of the semicircular canals (five cases, lateral; one case, superior; one case, posterior; and one case, both lateral and superior) was interrupted during eradication of the matrix and granulations from the semicircular canals. The interrupted semicircular canals were obliterated firmly with autologous materials such as fascia, perichondrium, bone chips, and cartilage. The observation period ranged from 9 months to 3.3 years. Postoperative hearing was unaltered or improved in seven patients, and decreased by 12 dB in one patient. Postoperative disequilibrium lasting more than 2 weeks was experienced in two patients and disappeared at the second and fifth postoperative months, respectively. Relief from Fistula symptoms was complete after surgery, indicating adequacy of this procedure in one-stage open-method tympanoplasty. The present study indicates that manipulation of the semicircular canal with awareness can be conducted without damaging the cochlear function, and that the treatment of Labyrinthine Fistulas should be performed very carefully but not so conservatively as to lead to future problems. In some cases of deep Fistulas of the semicircular canals, interruption and/or obliteration of the semicircular canals can be the most proper procedure. (Arch Otolaryngol Head Neck Surg. 1995;121:469-475)
