目的:我们旨在探索癫痫持续状态的结构连接。
方法:我们招募了接受弥散张量成像的参与者。我们应用图论来研究结构连通性。我们比较了患者与健康对照组之间以及入院结局差(改良Rankin量表[mRS]>3)和良好(mRS≤3)的患者之间的结构连通性测量。
结果:我们招募了28名患者和31名健康对照(年龄65.5岁对62.0岁,p=.438)。在这些病人中,16和12显示出不良和良好的入院结果(年龄65.5岁对62.0岁,p=.438)。分类系数(-0.113vs.-0.121,p=.021),平均聚类系数(0.007vs.0.006,p=.009),全球效率(0.023vs.0.020,p=.009),传递性(0.007vs.0.006,p=.009),癫痫持续状态患者的小世界指数(0.006vs.0.005,p=.021)高于健康对照组。分类系数(-0.108vs.-0.119,p=.042),平均聚类系数(0.007vs.0,006,p=.042),和传递性(0.008vs.0.007,p=.042)在入院结局差的患者中高于入院结局好的患者。MRS评分与结构连通性测量呈正相关,包括分类系数(r=0.615,p=0.003),平均聚类系数(r=0.544,p=0.005),全球效率(r=0.515,p=0.007),传递性(r=0.547,p=0.007),和小世界指数(r=0.435,p=0.024)。
结论:我们揭示了结构连通性的改变,显示癫痫持续状态的整合和隔离增加,这可能与神经元同步有关。这种效果在入院结局不佳的患者中更为明显,可能重塑我们对癫痫持续状态机制的理解和更有针对性的治疗方法的发展。
OBJECTIVE: We aimed to explore structural
connectivity in status epilepticus.
METHODS: We enrolled participants who underwent diffusion tensor imaging. We applied graph theory to investigate structural
connectivity. We compared the structural
connectivity measures between patients and healthy controls and between patients with poor (modified Rankin Scale [mRS] >3) and good (mRS ≤3) admission outcomes.
RESULTS: We enrolled 28 patients and 31 healthy controls (age 65.5 vs.62.0 years, p = .438). Of these patients, 16 and 12 showed poor and good admission outcome (age 65.5 vs.62.0 years, p = .438). The assortative coefficient (-0.113 vs. -0.121, p = .021), mean clustering coefficient (0.007 vs.0.006, p = .009), global efficiency (0.023 vs.0.020, p = .009), transitivity (0.007 vs.0.006, p = .009), and small-worldness index (0.006 vs.0.005, p = .021) were higher in patients with status epilepticus than in healthy controls. The assortative coefficient (-0.108 vs. -0.119, p = .042), mean clustering coefficient (0.007 vs.0.006, p = .042), and transitivity (0.008 vs.0.007, p = .042) were higher in patients with poor admission outcome than in those with good admission outcome. MRS score was positively correlated with structural
connectivity measures, including the assortative coefficient (r = 0.615, p = .003), mean clustering coefficient (r = 0.544, p = .005), global efficiency (r = 0.515, p = .007), transitivity (r = 0.547, p = .007), and small-worldness index (r = 0.435, p = .024).
CONCLUSIONS: We revealed alterations in structural
connectivity, showing increased integration and segregation in status epilepticus, which might be related with neuronal synchronization. This effect was more pronounced in patients with a poor admission outcome, potentially reshaping our understanding for comprehension of status epilepticus mechanisms and the development of more targeted treatments.