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"ABSTRAKTindakan operasi timpanomastoidektomi pada pasien otitis media supuratif kronis (OMSK) perlu dipahami struktur tiga dimensi intraoperatif, yaitu diantaranya adalah jarak dinding superior liang telinga ke tegmen, jarak dinding posterior liang telinga ke sinus sigmoid dan besar sudut sinodura. Salah satu struktur yang juga berperan pada penyakit OMSK adalah aditus ad antrum. Aditus ad antrum merupakan saluran yang menghubungkan kavum timpani dengan sel-sel udara mastoid yang berfungsi sebagai penyimpan udara. Struktur-struktur tersebut dapat dievaluasi pada pemeriksaan tomografi komputer. Saat ini belum didapatkan variasi jarak struktur anatomi tersebut pada pasien OMSK dan bukan OMSK, serta kajian introperatif pada pasien OMSK di RSUPN Dr. Cipto Mangunkusumo. Penelitian ini adalah studi analisis potong lintang yang terdiri dari 2 penelitian pendahuluan. Penelitian pertama adalah penelitian variasi jarak struktur anatomi tulang temporal menggunakan pengukuran TK tulang temporal pada pasien OMSK dan bukan OMSK, masing-masing terdiri dari 30 TK tulang temporal yang dikumpulkan secara konsekutif. Penelitian kedua adalah penelitian kesesuaian variasi jarak struktur anatomi tulang temporal antara pengukuran TK tulang temporal dengan intraoperatif pada 5 pasien OMSK yang dikumpulkan secara konsekutif total sampling selama 9 bulan. Pada penelitian 30 TK tulang temporal OMSK dan 30 bukan OMSK didapatkan perbedaan ukuran yang lebih kecil pecontoh yang OMSK, yaitu pada jarak dinding superior liang telinga ke tegmen 2 (irisan tegmen sejajar spina henle), jarak dinding superior liang telinga ke tegmen 3 (irisan tengah tegmen antara skutum dan spina henle), besar sudut sinodura dan luas aditus ad antrum. Pada penelitian 5 pasien OMSK didapatkan kesesuaian yang sangat kuat antara pemeriksaan TK tulang temporal dengan intraoperatif pada jarak dinding posterior liang telinga ke sinus sigmoid.

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ABSTRACTIn performing timpanomastoidectomy procedure for chronic suppurative otitis media, it is important to understand about the three dimensional structure intraoperative. Some of the important structure in the temporal bone are the distance from superior part of canalis acouticus externus to the tegmen, distance from posterior part of canalis acousticus externus to the sigmoid sinus and sinodural angle. One of another important structure related to chronic suppurative otitis media is aditus ad antrum. Aditus ad antrum is a canal which connect the tympanic cavity with mastoid air cells that functioned as air reservoir. Those structure can be evaluated in computed tomography examination. In dr. Cipto Mangunkusumo hospital, we still have no data about the variation of temporal bone anatomic structure distance in chronic suppurative otitis media and non chronic suppurative otitis media also about evaluation of chronic supurative otitis media patients intraoperative. This research is a cross sectional study that consist of 2 preeliminary study. The first research was evaluating the variation of temporal bone anatomic structure distance using computed tomography examination from chronic suppurative otitis media and non chronic suppurative otitis media, each consist of 30 computed tomography recruited consecutively. The second research was evaluating the correlation of variation temporal bone anatomic structure distance using computed tomography examination and intraoperative from 5 chronic suppurative otitis media patient recruited consecutively total sampling for 9 months. From the measurement of each 30 computed tomography from chronic suppurative otitis media and non chronic suppurative otitis media patients, there was a smaller measurement in CSOM patients in the distance from superior part of canalis acousticus externus to tegmen 2, distance from superior part of canalis acousticus exterrnus to tegmen 3, sinodural angle and the width of aditus ad antrum. From the evaluation of 5 CSOM patients there was a very strong correlation between computed tomography examination and intraoperative findings in the distance of posterior part of canalis acousticus externus to sigmoid sinus."

"Latar belakang: Gangguan pendengaran merupakan keluhan umum yang sering dirujuk ke spesialis Telinga Hidung Tenggorok (THT), dengan kasus terbanyak di wilayah Pasifik Barat dan Asia Tenggara. Gangguan pendengaran dapat mengganggu kemampuan wicara dan bahasa anak, mengakibatkan kesulitan dalam sosialisasi dan prestasi akademik yang buruk. Implantasi koklea merupakan metode rehabilitasi efektif untuk pasien gangguan pendengaran sensorineural. Terdapat bukti variasi jangkauan komunikasi reseptif pascaimplantasi koklea. Korelasi antara luas penampang nervus koklearis, diameter kanalis auditori interna dan usia saat implantasi terhadap luaran auditori pascaimplantasi koklea diharapkan dapat menjadi parameter kandidat implantasi serta prediktor luaran auditori pascaimplantasi koklea.Metode: Studi korelasi dengan desain cross-sectional. Terdapat 40 sampel yang telah menjalani implantasi koklea. Dilakukan pengukuran luas penampang nervus koklearis pada MRI koklea dan diameter kanalis auditori interna pada HRCT scan tulang temporal pada masing-masing sampel, kemudian dikorelasikan terhadap luaran auditori pascaimplantasi koklea berdasarkan skor CAP-IIHasil: Median luas penampang nervus koklearis sampel 0,52 mm2 (+/- 0,14), median diameter kanalis auditori interna sampel 2,14 mm (+/- 0,35), dan median usia sampel saat implantasi koklea 4 tahun (1-11). Tidak terdapat korelasi antara luas penampang nervus koklearis terhadap luaran auditori pascaimplantasi koklea (r = 0,29; p = 0,075). Tidak terdapat korelasi antara diameter KAI terhadap luaran auditori pascaimplantasi koklea (r = - 0,02; p = 0,929). Tidak terdapat korelasi antara usia saat implantasi terhadap luaran auditori pascaimplantasi koklea (r = 0,07; p = 0,687).Kesimpulan: Tidak terdapat korelasi antara luas penampang nervus koklearis terhadap luaran auditori pascaimplantasi koklea. Tidak terdapat korelasi antara diameter KAI terhadap luaran auditori pascaimplantasi koklea. Tidak terdapat korelasi antara usia saat implantasi terhadap luaran auditori pascaimplantasi koklea. Diperlukan penelitian lanjutan secara prospektif untuk menentukan parameter kandidat implantasi serta prediktor luaran auditori pascaimplantasi koklea.

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Background: Hearing loss is a common complaint that is often referred to an Ear Nose Throat (ENT) specialist, with the most cases occurring in the West Pacific and Southeast Asia regions. Hearing loss can interfere with a child's speech and language skills, resulting in difficulties in socialization and poor academic performance. Cochlear implantation is an effective rehabilitation method for sensorineural hearing loss patients. There is evidence of variation in the range of receptive communication after cochlear implantation. The correlation between cochlear nerve cross-sectional area (CSA), internal auditory canal diameter and age at implantation with postcochlear implantation auditory outcome is expected to be a candidate parameter for implantation as well as a predictor of postcochlear implantation auditory outcome.

Methods: Correlation study with cross-sectional design. There were 40 samples that had undergone cochlear implantation. The cross-sectional area of ​​the cochlear nerve was measured on cochlear MRI and the diameter of the internal auditory canal on the HRCT scan of the temporal bone in each sample, then correlated with the postcochlear implantation auditory outcome based on the CAP-II score.

Results: The median CSA of ​​the cochlear nerve sample was 0,52 mm2 (+/- 0,14), the median diameter of the internal auditory canal sample was 2,14 mm (+/- 0,35), and the median age of the sample at cochlear implantation was 4 years (1- 11). There was no correlation between the cross-sectional area of​​the cochlear nerve and the auditory output after cochlear implantation (r = 0,29; p = 0,075). There was no correlation between KAI diameter and postcochlear implantation auditory output (r = -0,02; p = 0,929). There was no correlation between age at implantation and postcochlear implantation auditory outcomes (r = 0,07; p = 0,687).

Conclusion: There is no correlation between the cross-sectional area of ​​the cochlear nerve and the auditory output after cochlear implantation. There is no correlation between KAI diameter and postcochlear implantation auditory output. There is no correlation between age at implantation and postcochlear implantation auditory outcomes. Further research is needed prospectively to determine the parameters of implantation candidates and predictors of postcochlear implantation auditory outcome."