Friedman Deborah I
Continuum (Minneap Minn). 2014 Aug;20(4 Neuro-ophthalmology):857-76. doi: 10.1212/01.CON.0000453314.75261.66.
Papilledema is one of the most concerning physical examination findings in neurology: it has a broad differential diagnosis of intracranial (and occasionally spinal) pathology associated with increased intracranial pressure. Papilledema impairs axoplasmic flow within the optic nerves and compresses the optic nerves externally; it may lead to profound visual loss. Thus, detection of papilledema and assessment of visual function are essential to patient management. This article reviews the treatment of papilledema-related visual loss in pseudotumor cerebri syndrome, one of the most common causes of papilledema encountered by neurologists.
Results from the Idiopathic Intracranial Hypertension Trial (IIHTT), the first randomized, double-masked, placebo-controlled trial for the treatment of patients with mild visual loss from idiopathic intracranial hypertension, were published in April 2014. The IIHTT provides the first evidence-based treatment recommendations, showing the benefit of acetazolamide and weight loss for improving visual status in patients with mild visual field loss from idiopathic intracranial hypertension.
A detailed ophthalmic examination, including perimetry, is critical to the evaluation, treatment, and assessment of treatment response in patients with papilledema.
视乳头水肿是神经科体格检查中最令人担忧的发现之一:它对与颅内压升高相关的颅内(偶尔为脊髓)病变具有广泛的鉴别诊断。视乳头水肿会损害视神经内的轴浆流并从外部压迫视神经;它可能导致严重的视力丧失。因此,视乳头水肿的检测和视觉功能评估对于患者管理至关重要。本文回顾了神经科医生遇到的视乳头水肿最常见原因之一——假性脑瘤综合征中与视乳头水肿相关的视力丧失的治疗方法。
特发性颅内高压试验(IIHTT)的结果于2014年4月发表,这是首个针对特发性颅内高压导致轻度视力丧失患者的随机、双盲、安慰剂对照试验。IIHTT提供了首个基于证据的治疗建议,表明乙酰唑胺和减重对改善特发性颅内高压导致轻度视野缺损患者的视力状况有益。
详细的眼科检查,包括视野检查,对于视乳头水肿患者的评估、治疗及治疗反应评估至关重要。