Association of Auditory Dysfunction With Retinal Ischemia in Behcet Disease
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 64
- 试验地点
- 1
- 主要终点
- correlation of hearing abnormalities with retinal ischemia
研究概览
简要总结
Auditory dysfunction is commonly detected in Behçet's disease (BD). Also, vestibular abnormalities as well as cochlear function affection have been found. The inflammatory process in BD may be the cause of audiometry abnormalities in those patients. The aim of this study is to assess hearing dysfunction in Behçet patients and its relation to retinal ischemia and disease activity using conventional pure-tone audiometry (cPTA), tympanogram and acoustic reflex
详细描述
pure tone audiometry is a behavioral test used to measure hearing sensitivity. This measure involves the peripheral and central auditory systems. Pure-tone thresholds (PTTs) indicate the softest sound audible to an individual at least 50% of the time. Hearing sensitivity is plotted on an audiogram, which displays intensity as a function of frequency.
Speech audiometry employs speech signals to assess if the patient has problems hearing speech or speech in noise. Speech audiometry can be used to examine the processing ability and if it is affected by disorders of the middle ear, cochlea, auditory nerve, brainstem pathway, or auditory centers of the cortex.
Tympanogram is a test of middle ear functioning. This objective test also allows to view the functioning of the Eustachian Tube, the upper auditory pathways and the reflex contraction from the middle ear muscles. Impedance testing is crucial in distinguishing a conductive loss from a sensorineural hearing loss.
Optical coherence tomography angiography (OCT-A) for imaging the microvasculature of the retina and the choroid.
Behcet disease current activity form for assessment of disease activity range from 0 to 12 . 12 represents the highest disease activity. It depends on the symptoms present over the last 4 weeks.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •All patients fulfill the International Criteria of behcet disease
排除标准
- •age more than 50
- •ear infection,
- •ear trauma, acoustic trauma, or usage of ototoxic drugs.
- •Also, associated systemic diseases that can affect the hearing as infectious diseases (e.g., mumps, CMV), granulomatous diseases (e.g., sarcoidosis, Wegner's granulomatosis), other autoimmune diseases (e.g., Rheumatoid arthritis, Cogan's syndrome, polyarteritis nodosa, relapsing polychondritis), and diseases of the bone (e.g., Paget's disease).
结局指标
主要结局
correlation of hearing abnormalities with retinal ischemia
时间窗: 3 months
oct angiography
Detection of hearing abnormalities in behcet disease
时间窗: 3 MONTHS
pure tone audiometry, tympanogram and acoustic reflex
次要结局
未报告次要终点
研究者
Maha Sayed Ibrahim Abdelrahman
Principal investigator
Assiut University