The Effect of Vascular Loop in the Tinnitus Severity

Abstract

Objective:To evaluate the effect of vascular loop variations diagnosed by high resolution ear magnetic resonance imaging (MRI) on the etiology and clinic of tinnitus with both the features of tinnitus and the tinnitus handicap inventory (THI). Material and Methods:The tinnitus handicap inventory was applied to the patients 18-55 years of age who presented to our clinic with the complaint of unilateral chronic tinnitus. Patients were grouped according to MRI findings and gender.Results: There were 47 type I vascular loop patients (26 female: group I, 21 male: group II), 40 type II vascular loop patients (24 female: group III, 16 male: group IV) and 60 normal patients (34 female: group V, 26 male: group VI) with MRI findings. In each group, the number of female patients was higher and the THI averages of female patients were higher. Patients with type II vascular loop had higher THI averages. In addition, the age of onset of tinnitus was earlier in patients with type II vascular loop. Conclusion:The type II vascular loop affects the tinnitus clinic by creating vascular compression. Our results suggest that it is possible to evaluate a type II vascular loop as a vascular compression syndrome due to its clinical effects. ÖZ Amaç:Yüksek rezolüsyonlu kulak manyetik rezonans görüntüleme (MRG) ile tanı konulmuş vasküler loop varyasyonlarının tinnitus etiyolojisi ve kliniği üzerine etkisinin olup olmadığını hem tinnitusun özellikleri hem de tinnitus engellilik anketi (TEA) ile değerlendirmek. Gereç veYöntemler: Kliniğimize tek taraflı kronik tinnitus yakınması ile başvuran, işitmesi normal 18-55 yaş arasındaki hastalara tinnitus engellilik anketi uygulandı. Hastalar MRG bulguları ve cinsiyete göre gruplara ayrıldı. Bulgular: MRG bulgularına göre, 47 tip1 vasküler loop olan hasta (26 kadın: grup I, 21 erkek: grup II), 40 tip2 vasküler loop olan hasta (24 kadın: grup III, 16 erkek: grup IV) ve 60 normal hasta (34 kadın: grup V, 26 erkek: grup VI) vardı. Her grupta kadın hasta sayısı daha fazla ve kadın hastaların TEA ortalamaları daha yüksekti. Tip2 vasküler loopu olan hastaların da TEA ortalamaları daha yüksekti. Ayrıca tip2 vasküler loop olan hastalarda tinnitusun başlama yaşı daha erkendi. Sonuç: Tip2 vasküler loop bir vasküler kompresyon oluşturarak tinnitus kliniğini etkilemektedir. Elde ettiğimiz sonuçlara göre tip2 vasküler loopu oluşturduğu klinik etkiler nedeniyle vasküler kompresyon sendromu olarak değerlendirebiliriz.The pure tone audiometry test was performed in a soundproof room with the AC40 device (Interacoustics; Assens, Denmark). Air conduction thresholds were measured using the Telephonics TDH39 headset (Interacoustics; Assens, Denmark) in the 0.25-8.0 kHz range. Bone conduction thresholds were measured using a B71 bone vibrator (Interacoustics; Assens, Denmark) at the 0.25-6.0 kHz range. The audiometric thresholds were determined by the mod-

Vasküler loop sendromunda anterior inferior serebellar arterin çapı ve vasküler loop tipinin klinik bulgular ile ilişkisi: klinik radyoloji çalışması

“…It can be pulsatile or non-pulsatile. If it is longer than 6 months, it is called chronic, if it is short, it is called acute (3)(4)(5). In the etiology of tinnitus, factors such as trauma, drugs, the common cold, and Menieré's disease may take place.…”

“…History taking, otolaryngological examination, neurological examination, and radiological methods help us to identify treatable causes of tinnitus (1). However, precise information about the etiology cannot be obtained in most patients (1,3) Like tinnitus, sensorineural hearing loss (SNHL) and vertigo are common audiovestibular symptoms. Many diseases can cause these symptoms to occur.…”