不同位置的动脉瘤性蛛网膜下腔出血对高级 神经功能的影响

The Impact of Aneurysmal Subarachnoid Hemorrhage at Different Locations on Higher Neurological Functions

摘要: 背景：动脉瘤性蛛网膜下腔出血(aSAH)是一种致残率和致死率极高的临床危重症。尽管临床救治成功率有所提高，但仍有约半数以上的幸存者因长期神经功能障碍而无法重返工作岗位，造成了沉重的社会经济负担。方法：通过回顾既往关于aSAH患者高级神经功能损伤的相关临床研究，系统分析不同位置动脉瘤(如前循环、后循环、前交通动脉等)破裂后对认知、记忆、执行功能、语言以及情绪的影响，并探讨其潜在的解剖学与病理生理机制。结果：研究发现动脉瘤解剖位置与神经损伤程度相关。前循环动脉瘤较后循环动脉瘤更易引发认知缺陷，主因是其破裂后易累及对认知和情感调控至关重要的内侧额颞叶。在功能维度上，ACoA动脉瘤常导致严重的记忆障碍和启动功能障碍；左侧大脑中动脉(MCA)动脉瘤则与语言理解障碍显著相关。此外，aSAH后抑郁与焦虑的发生率显著升高(分别为28.1%和27%~54%)，这与病灶对边缘系统的影响及神经递质失调有关。结论：动脉瘤位置与aSAH患者高级神经功能损伤存在一定关联。临床上通过深入分析损伤机制，有助于更精准地制定个体化康复策略，减轻患者的长期负担。

Abstract: Background: Aneurysmal subarachnoid hemorrhage (aSAH) is a critical clinical condition with high rates of disability and mortality. Despite improvements in survival rates, more than half of survivors suffer from long-term neurological impairments that prevent them from returning to work, imposing a heavy socioeconomic burden. Methods: By reviewing clinical studies on higher neurocognitive impairment in aSAH patients, this study systematically analyzed the effects of different aneurysm locations (e.g., anterior vs. posterior circulation, ACoA) on cognition, memory, executive function, language, and emotion, while exploring the underlying anatomical and pathophysiological mechanisms. Results: The findings indicate that the anatomical location of the aneurysm is closely related to the severity of neurological damage. Anterior circulation aneurysms, particularly those of the anterior communicating artery (ACoA), are more likely to cause significant cognitive deficits than posterior circulation aneurysms, primarily because their rupture affects the medial frontotemporal lobe regions crucial for cognitive and emotional regulation. Functionally, ACoA aneurysms often lead to severe memory and initiation deficits, while left middle cerebral artery (MCA) aneurysms are significantly associated with language comprehension impairment. Additionally, the incidence of depression (28.1%) and anxiety (27%~54%) increases significantly post-aSAH, which is linked to the impact on the limbic system and neurotransmitter dysregulation. Conclusion: Aneurysm location is a critical indicator for predicting the status of higher neurocognitive function in aSAH patients. In-depth analysis of these mechanisms can help clinicians develop more precise, individualized rehabilitation strategies and alleviate the long-term burden on patients.