Private ENT Clinic Goettingen, University Witten/Herdecke, Faculty of Medicine, Goettingen, Germany.
Expert Rev Med Devices. 2010 Sep;7(5):605-9. doi: 10.1586/erd.10.30.
Benign paroxysmal positional vertigo is one of the most common disorders of the vestibular system. It is characterized by episodes of recurrent vertigo triggered by head movements or position changes associated with nystagmus. There is scientific evidence that in the majority of cases this condition responds well to the particle repositioning maneuver (PRM) correctly performed by the physician. However, the PRM needs to be repeated in approximately 30% of the cases. Although the maneuver is simple, patients often find it difficult to perform correctly as self-treatment, with the result that it fails to bring about an improvement in the symptoms. DizzyFix (Clearwater Clinical Limited, Canada) is the name given to a new dynamic visual device designed to provide a visual representation of the PRM based on the canalith theory. The DizzyFiX consists of a specially curved acrylic tube containing a nontoxic viscous fluid and a bead, the purpose of which is to help the patient and the inexperienced physician to perform the PRM correctly. A randomized clinical trial has shown that it reliably enables the maneuver to be performed correctly, and a study investigating the effectiveness of patient self-treatment of benign paroxysmal positional vertigo with the device in comparison with standard office treatment revealed both techniques to be equally effective. The device has now been approved by the US FDA.
良性阵发性位置性眩晕是前庭系统最常见的疾病之一。其特征是反复发作的眩晕，由头部运动或位置变化引起，并伴有眼球震颤。有科学证据表明，在大多数情况下，这种疾病对医生正确实施的颗粒重定位手法（PRM）反应良好。然而，大约 30%的病例需要重复进行 PRM。尽管该手法简单，但患者通常发现难以自行正确实施，导致症状无法改善。DizzyFix（加拿大 Clearwater Clinical Limited）是一种新的动态视觉设备的名称，旨在根据耳石理论提供 PRM 的视觉表示。DizzyFiX 由一个特殊弯曲的丙烯酸管组成，内装无毒粘性液体和一个珠子，其目的是帮助患者和经验不足的医生正确地进行 PRM。一项随机临床试验表明，它能够可靠地正确实施该手法，而一项研究比较了使用该设备进行良性阵发性位置性眩晕的患者自我治疗与标准办公室治疗的效果，结果表明两种技术同样有效。该设备现已获得美国 FDA 的批准。
