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Research in Vestibular Science > Volume 14(1); 2015 > Article
Research in Vestibular Science 2015;14(1): 26-31.
돌발성 난청과 비전형적인 양성돌발체위현훈의 소견을 보이는 외림프누공 환자 2예
이정주, 류광희, 문일준, 정원호
성균관대학교 의과대학 삼성서울병원 이비인후과학교실
Two Cases of Barotraumatic Perilymph Fistula Mimicking Atypical Benign Paroxysmal Positional Vertigo with Sudden Hearing Loss
Jung Joo Lee, Gwanghui Ryu, Il Joon Moon, Won Ho Chung
Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. whchung12@gmail.com
Barotraumatic perilymph fistula is difficult to diagnose and needs diagnosis of suspicion. Symptoms like hearing loss, tinnitus, ear fullness and positional dizziness can develop following barotrauma such as valsalva, nose blowing, straining and diving, etc. We reported 2 cases of perilymph fistula following barotrauma. The patients developed hearing loss, tinnitus and ear fullness followed by sudden onset of positional dizziness mimicking benign paroxysmal positional vertigo (BPPV). On positional tests, the direction of nystagmus has changed over time. In addition, the characteristics of nystagmus on positional test were not similar to typical BPPV, which showed longer duration of nystagmus, no reversibility and no fatigability. We concluded that barotraumatic perilymph fistula could present as hearing loss with positional dizziness mimicking sudden hearing loss with BPPV. The differential diagnostic points were history of barotrauma, time sequence of development of hearing loss and positional dizziness, and atypical positional nystagmus unlike BPPV.
Keywords: Perilymph; Fistula; Barotrauma; Benign paroxysmal positional vertigo
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