在患有异常性内高血压的患者中,评估结构和功能测试之间的关系
Kaveh Abri Aghdam1, Mostafa Soltan Sanjari1, Samira Chaibakhsh2
1Eye Research Center, Eye Department, The Five Senses Health Institute, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
International ophthalmology
|March 1, 2024
概括
异形性内高血压 (IIH) 的严重程度在轻度和中度病例之间有所不同. 平均偏差 (MD) 和黄斑质细胞层 (MGCL) 厚度是IIH疾病病期的关键指标.
科学领域:
- 眼科医生 眼科 眼科
- 神经眼科 神经眼科
- 医学成像医学成像
背景情况:
- 异形内高血压 (Idiopathic intracranial hypertension,IIH) 是一种脑内血压升高的疾病.
- 在IIH中评估疾病严重程度和进展对于患者管理至关重要.
研究的目的:
- 评估结构性和功能性测试在轻度和中度异常性内高血压 (IIH) 中的相关性.
- 确定各种眼科参数在区分IIH严重性的有用性.
主要方法:
- 一项比较观察性研究包括了轻度/中度IIH患者和对照组.
- 测量包括最佳校正的视力敏度 (BCVA),黄斑质细胞层 (MGCL) 厚度,周状视网膜神经纤维层 (pp RNFL) 厚度,视野平均偏差 (MD) 和电视网膜图的光学负面反应 (PhNR).
- 统计分析评估了结构性 (pp RNFL,MGCL) 和功能性 (PhNR,MD,BCVA) 参数之间的关联.
主要成果:
- 与对照组相比,中度IIH显示MGCL厚度,VA,pp RNFL和PhNR振幅显著减少.
- 在中度IIH中,BCVA和MD与MGCL厚度之间的关联仅在中度IIH中观察到.
- 当MD值下降到 -5.7dB以下时,MD和MGCL厚度之间的相关性出现.
结论:
- 在IIH中,结构性和功能性参数之间的关系取决于疾病的严重程度 (轻度与中度).
- 平均偏差 (MD) 和MGCL厚度在分别评估轻度和中度IIH严重性方面表现优异.
- MD和MGCL厚度之间的相互作用有可能对IIH严重程度进行分类.
相关概念视频
Increased Intracranial Pressure l: Introduction
Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Increased Intracranial Pressure ll: Pathophysiology
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...


