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- 저자 : 한지혁(Ji Hyuk Han) (검색결과 2 건)
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한지혁(Ji Hyuk Han),이영우(Young Woo Lee),김정민(Jung Min Kim),정효진(Hyo Jin Chung),한수진(Su-Jin Han),윤주헌(Joo Heon Yoon),문인석(In Seok Moon) 대한두개저학회 2016 대한두개저학회지 Vol.11 No.2
Introduction : Surgical removal of extracranial trigeminal schwannoma has been challenging due to anatomic complexity and rarity of the disease. Transzygomatic approach can be a good option for extracranial trigeminal schwannoma, especially in cases extended to infratemporal fossa, pterygopalatine fossa and parapharyngeal space. Authors report several cases of extracranial trigeminal nerve schwannomas which were treated using modified or combined transzygomatic approaches. Materials and Methods : 3 patients were diagnosed as extracranial trigeminal schwannoma and underwent surgical removal via modified or combined transzygomatic approach from January 2013 to June 2016. Results : We analyzed the tumor control, complication rate, and origin of tumor. Among 3 patients, combined transzygomatic approach was applied to one patient. It was combined with transcervical approach for the patient. The huge extracranial trigeminal schwannomas were completely excised in all 3 cases. There were no significant complications. Conclusion : The modified transzygomatic approach is safe and useful for removal of huge extracranial trigeminal schwannoma without facial scar and is easily combined with transcervical approach.
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양측 급성 음향외상의 임상양상 및 치료결과의 개인별 이질성
안정민 ( Jungmin Ahn ),한지혁 ( Ji Hyuk Han ),배문정 ( Mun Jung Bae ) 국군의무사령부 2020 대한군진의학학술지 Vol.51 No.1
Objective: To analyze individual heterogeneity in susceptibility to noise using within-subject comparison of hearing outcomes following medical therapy for bilateral acute acoustic trauma (AAT). Method: Twelve patients with bilateral hearing loss after gunshot noise exposure during military training were enrolled. Pure tone audiometry, to measure pure-tone averages (PTA) at 2000, 4.000, and 8000 Hz, was performed in all patients at their initial visit and one month after treatment with oral corticosteroids. Results: The initial mean hearing level was 46.67 ± 12.0 dB for the right ear, 52.92 ± 11.15 dB for the left, and 49.79 ± 11.77 dB for both ears. In the 1-month follow-up, the mean PTA was 35.42 ± 15.19 dB for the right ear, 43.06 ± 15.92 dB for the left, and 39.24 ± 15.71 dB for both ears. The difference in PTA between the right and left ears during the initial visit was markedly correlated with the difference in PTA between both ears during the 1-month follow-up (rho = 0.814, р = 0.001). In addition, the average hearing gain on the right side showed a strong correlation with that on the left side (rho = 0.736, p = 0.006). However, there was no relationship between the initial hearing threshold and the degree of hearing gain when both ears were considered together. Conclusion: We detected the positive effects of steroid treatment for AAT and demonstrated clinical evidence of individual susceptibility to acoustic trauma.
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