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Yıl:2006; Cilt: 44; Sayı: 2>> Özet
TAM METİN
Yeni Symposium; 2006;44(2):59-63
Relapsing-Remitting Multipl Sklerozu Olan Hastalarda Beyinsapı İşitsel Uyarılmış Potansiyellerinin Tanı Değeri
N Turgut, SŞ Karaçayır, K Balcı, Y Çelik, T Asil
Trakya Üniversitesi Tıp Fakültesi Nöroloji Anabilim Dalı, Edirne
Amaç: Multipl skleroz (MS) merkezî sinir sistemi ak maddesinin enflamatuar demiyelinizan hastalığıdır. Uyarılmış potansiyeller subklinik demiyelinizasyon bölgelerini ortaya koymada ve çok odaklı seyri göstermede oldukça duyarlı incelemelerdir. Çalışmamızda relapsing-remitting MS'li (RRMS) olan olgularda beyinsapı işitsel uyarılmış potansiyelleri (BİUP) değerlendirilmiş, MS'i olan hastalardaki tanı değeri araştırılmıştır.
Yöntem: Çalışmaya, RRMS'si olan 22 hasta (yaş ortalaması: 33.7±8.8) ve 23 kontrol olgusu dâhil edildi (yaş ortalaması: 34.6±8.1). Hasta grubunda nörolojik muayene, kraniyal manyetik rezonans görüntüleme (MRG) ve uyarılmış potansiyel (UP) analizleri yapıldı. Kontrol grubunda ise nörolojik muayene ve UP analizi yapıldı.
Bulgular: Altı hastada klinik olarak (%27), 11 hastada MRG ile (%50), 12 hastada BİUP incelemesi ile (%54) beyinsapı tutulumu tesbit edildi. BİUP incelemesinde elde edilen değerler gruplar arasında karşılaştırıldığında, hasta grubunda 5. dalga latansının, 1-5 ve 3-5 interpik lataslarının kontrol grubuna kıyasla uzamış olduğu saptandı (p<0.05). Klinik olarak beyinsapı tutulumu tesbit edilmeyen 16 hastanın 9'unda (%56), MRG ile beyinsapı tutulumu tesbit edilmeyen 11 hastanın 4'ünde (%36) BİUP incelemesi ile beyinsapı tutulumu tesbit edildi. Ayrıca hem klinik olarak hem de MRG ile beyinsapı tutulumu tesbit edilmeyen 4 hastada BİUP incelemesi ile beyinsapı tutulumu sap¬tandı.
Tartışma ve Sonuç: RRMS'si olan hastalarda BİUP incelemesi, subklinik beyinsapı tutulumunu ve çok odaklı seyri göstermesi bakımından bilgi vericidir.
Diagnostic Value of Brainstem Auditory Evoked Potentials in Patintes with Relapsing Remitting Multipl Sclerosis
Objective: Multiple sclerosis (MS) is an inflammatory and demyelinating disease of the white matter of central nervous system. Evoked potentials (EP) can be used to show the demyelinated areas and to show multicenter involvement. In this study, brainstem auditory evoked potentials (BAEP) were evaluated in patients with relapsing-remitting MS (RRMS), and the diagnostic value of BAEP was evaluated.
Method: Twenty-two patients with RRMS (mean ages 33.7±8.8), and 23 control subjects (mean age 34.6±8.1) were included. Neurological examination, cranial magnetic resonance imaging (MRI), and EP were evaluated for patients. Neurological examination and EP were evaluated for control subjects.
Findings: Brainstem involvement was demonstrated in six patients with clinical examination (%27), in 11 patients with MRI (50%), in 12 patients with BAEP (54%). In BAEP, latency of fifth wave, 1-5 and 3-5 interpeak latency were found significantly longer in patients than control subjects (p<0.05). 9 of 16 patients (56%) who had no brainstem involvement with neurological examination, and 4 of 11 patients (36%) who had no brainstem involvement with MRI, had brainstem involvement with BAEP. In 4 patients who had no brainstem involvement with MRI and clinical examination, brainstem involvement was demonstrated with BAEP.
Discussion and Conclusion: BAEP may diagnostic have value in patients with RRMS to show subclinical brainstem involvement.

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